Nothing Special   »   [go: up one dir, main page]

CN113202246A - Nano antibacterial wallboard and preparation method thereof - Google Patents

Nano antibacterial wallboard and preparation method thereof Download PDF

Info

Publication number
CN113202246A
CN113202246A CN202110460403.4A CN202110460403A CN113202246A CN 113202246 A CN113202246 A CN 113202246A CN 202110460403 A CN202110460403 A CN 202110460403A CN 113202246 A CN113202246 A CN 113202246A
Authority
CN
China
Prior art keywords
antibacterial
facing paper
substrate
wallboard
coating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202110460403.4A
Other languages
Chinese (zh)
Other versions
CN113202246B (en
Inventor
胡福涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Keshuo Housing Technology Co ltd
Original Assignee
Suzhou Keshuo Housing Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Suzhou Keshuo Housing Technology Co ltd filed Critical Suzhou Keshuo Housing Technology Co ltd
Priority to CN202110460403.4A priority Critical patent/CN113202246B/en
Publication of CN113202246A publication Critical patent/CN113202246A/en
Application granted granted Critical
Publication of CN113202246B publication Critical patent/CN113202246B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/0866—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements composed of several layers, e.g. sandwich panels or layered panels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/10—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • B32B29/002—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
    • C09D167/06—Unsaturated polyesters having carbon-to-carbon unsaturation
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/63—Additives non-macromolecular organic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C09J11/04—Non-macromolecular additives inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C09J11/06—Non-macromolecular additives organic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J167/00—Adhesives based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Adhesives based on derivatives of such polymers
    • C09J167/06—Unsaturated polyesters having carbon-to-carbon unsaturation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/06—Unsaturated polyesters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
    • C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2227—Oxides; Hydroxides of metals of aluminium
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C08K2003/265—Calcium, strontium or barium carbonate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/14—Peroxides
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/02—Fibres or whiskers
    • C08K7/04—Fibres or whiskers inorganic
    • C08K7/14—Glass

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Architecture (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Plant Pathology (AREA)
  • Laminated Bodies (AREA)
  • Finishing Walls (AREA)

Abstract

The invention discloses a nano antibacterial wallboard and a preparation method thereof, wherein the nano antibacterial wallboard comprises a substrate and decorative paper compounded with the substrate, and the substrate is formed by die pressing and curing sheet molding compound; the antibacterial coating, the adhesive glue and the sheet molding compound all comprise the following raw materials: unsaturated polyester resin, a curing agent, a filler and a cross-linking agent, and the antibacterial coating also comprises nano oxide. The combination between the decorative paper and the substrate in the nano antibacterial wallboard is firmer and more reliable, and the wallboard can be antibacterial and anticorrosive.

Description

Nano antibacterial wallboard and preparation method thereof
The application is a divisional application of an invention patent application with application date of 2019, 10 and 28 months and application number of 2019110303588, and the invention name of the invention is 'preparation method of nano antibacterial wallboard and nano antibacterial wallboard'.
Technical Field
The invention relates to the technical field of home decoration building materials, in particular to a nano antibacterial wallboard and a preparation method of the nano antibacterial wallboard.
Background
At present, the decoration materials are mostly compounded by adding decorative paper or paint decorative surfaces on a wood base material, the integral bathroom is used as a new industry, the wood base material, marble and the like are replaced by adopting composite materials, the conventional SMC wallboard for the integral bathroom is used, the decoration plates of the integral bathroom are pressed by SMC, the front and back surfaces of the decoration plates are the same in color and are the same in color as the SMC materials, the decoration plates are single in color, and the colorful decoration plates with the same color as the wall surfaces cannot be manufactured.
In order to solve such problems, as chinese patent application No.: 201610058925.0, the patent names: the invention discloses a wallboard for an integral bathroom and a preparation method thereof, and discloses a method for compounding a thin aluminum plate on a molded plate obtained from sheet molding compound, so that the prepared wallboard has selectable color and is aging-resistant. However, such products are not resistant to peeling, have surfaces that are not abrasion resistant, corrosion resistant, and are not antimicrobial and corrosion resistant.
Disclosure of Invention
In view of the above, in order to overcome the defects of the prior art, the present invention aims to provide a nano-antibacterial wallboard and a method for preparing the nano-antibacterial wallboard, wherein the bonding strength between the facing paper and the substrate of the wallboard is high, and the surface of the facing paper is provided with a nano-antibacterial layer, so that the nano-antibacterial wallboard can resist bacteria, mildew, chemical reagents and wear.
In order to achieve the purpose, the invention adopts the following technical scheme:
a preparation method of a nano antibacterial wallboard comprises the following steps:
1) respectively preparing adhesive glue and an antibacterial coating, coating the adhesive glue on one side of facing paper, coating the antibacterial coating on the other side of the facing paper, drying the facing paper, and curing the adhesive glue and the antibacterial coating on the facing paper to 80-90% after drying;
2) paving sheet molding compound into a mold, wherein the paving area of the sheet molding compound is 70-90% of the orthographic projection area of the finally prepared nano antibacterial wallboard, paving dried facing paper on the sheet molding compound in the mold, enabling the adhesive glue to be located between the facing paper and the sheet molding compound, and then integrally molding and pressing; obtaining a wallboard with decorative paper attached to the surface of a substrate after mould pressing, wherein an embedding layer is arranged between the substrate and the decorative paper, the embedding layer is formed by curing adhesive glue infiltrated into the decorative paper, adhesive glue between the decorative paper and the substrate and one side of the sheet molding compound close to the decorative paper, and a nano antibacterial layer formed by curing the antibacterial coating is arranged on one side of the decorative paper far away from the substrate;
the antibacterial coating, the adhesive glue and the sheet molding compound all comprise the following raw materials: unsaturated polyester resin, a curing agent, a filler and a cross-linking agent, and the antibacterial coating also comprises nano oxide.
According to some preferred aspects of the present invention, the mass percent of unsaturated polyester resin in the bonding glue is greater than the mass percent of unsaturated polyester resin in the substrate; the mass percentage of the filler in the adhesive glue is less than that of the filler in the substrate.
Preferably, the mass percent of the unsaturated polyester resin in the adhesive glue is 35-50%, and the mass percent of the filler in the adhesive glue is 15-25%; the mass percent of the unsaturated polyester resin in the substrate is 15-40%, and the mass percent of the filler in the substrate is 40-60%.
More preferably, the adhesive glue comprises the following raw materials in parts by weight:
Figure BDA0003042043560000021
preferably, the preparation of the adhesive glue comprises the following steps: adding unsaturated polyester resin, curing agent, coupling agent, filler and crosslinking agent styrene into a glue barrel according to a certain proportion, stirring at room temperature for 20-30min, rotating speed of 300-.
According to some preferred aspects of the present invention, the sheet molding compound comprises the following raw materials in parts by weight:
Figure BDA0003042043560000022
the adhesive glue with the similar component to the sheet molding compound is adopted, so that when the sheet molding compound and the sheet molding compound are molded, the sheet molding compound and the adhesive glue can generate cross-linking reaction to generate fusion to form an integrated product, and the combination of the decorative paper and the substrate is firmer.
According to some preferred aspects of the present invention, the antibacterial coating comprises the following raw materials: unsaturated polyester resin, a curing agent, a coupling agent, a filler, a crosslinking agent styrene, a nano oxide and a release agent. The nano oxide is nano silicon dioxide or titanium dioxide and the like.
Specifically, in some embodiments, the antibacterial coating comprises the following raw materials in parts by weight:
Figure BDA0003042043560000031
preferably, the preparation of the antibacterial coating comprises the following steps: adding unsaturated polyester resin, a curing agent, a coupling agent, a filler, nano-silica, a release agent and a crosslinking agent styrene into a rubber barrel according to a proportion, stirring at room temperature for 40-60min and at the rotating speed of 300-400r/min, and uniformly stirring to obtain the antibacterial coating.
The curing agent in the raw materials comprises tert-butyl peroxybenzoate (TBPB) and/or benzoyl peroxide, and specifically, the curing agent is one or a combination of more of tert-butyl peroxy2-ethylhexanoate, methyl ethyl ketone peroxide, tert-butyl peroxybenzoate, dibenzoyl peroxide, bis (4-tert-butyl) cyclohexyl peroxydicarbonate, dilauroyl peroxide, fatty polyamine and the like;
the coupling agent is a silane coupling agent and/or titanate; specifically, the silane coupling agent is one or more of gamma- (methacryloxypropyl) trimethoxysilane, gamma- (2, 3-epoxypropoxy) propyl trimethoxysilane, N-beta (aminoethyl) -gamma-aminopropylmethyldimethoxysilane, N- (beta-aminoethyl) -gamma-aminopropyltriethoxysilane, N-beta (aminoethyl) -gamma-aminopropyltrimethoxysilane, aniline methyl triethoxysilane, gamma-aminopropyltriethoxysilane, vinyl triethoxysilane, vinyl trimethoxysilane, gamma-chloropropyltriethoxysilane and the like.
In some embodiments, the unsaturated resin used in the sheet molding compound is an o-benzene, m-benzene, or epoxy vinyl ester unsaturated resin, and contains an appropriate amount of carboxyl groups in the molecule to facilitate thickening; the adopted initiator is tert-butyl oxybenzoate or tert-butyl peroxy (2-ethyl hexanoate), or the mass ratio of tert-butyl oxybenzoate to tert-butyl peroxy 2-ethyl hexanoate is (0.7-0.8): (0.3-0.2) to form a composite initiator system.
The cross-linking agent is styrene; the filler is aluminum hydroxide micro powder with the particle size of less than or equal to 10 mu m or calcium carbonate micro powder with the particle size of less than or equal to 10 mu m or a mixture of the aluminum hydroxide micro powder and the calcium carbonate micro powder, and the release agent is zinc stearate and/or calcium stearate.
In some embodiments, the unsaturated polyester resin has a viscosity of 1100-1400mPa.s (23 ℃); the viscosity of the bonding glue is 1000-1300mPa.s (23 ℃); the viscosity of the antibacterial coating is 1200-1500mPa.s (23 ℃).
Specifically, in some embodiments, the method for preparing the nano-antibacterial wallboard comprises the following steps:
1) preparing adhesive glue: adding unsaturated polyester resin, a curing agent, a coupling agent, a filler and styrene into a glue barrel according to the following proportion, and uniformly stirring for later use;
Figure BDA0003042043560000041
2) preparing an antibacterial coating: adding unsaturated polyester resin, a curing agent, a coupling agent, a filler, nano silicon dioxide, a release agent and styrene into a rubber barrel according to the following proportion, and uniformly stirring for later use;
Figure BDA0003042043560000042
3) coating and pre-curing of the adhesive glue: adding the bonding glue prepared in the step 1) into a glue groove, coating the bonding glue on one side of the facing paper, adjusting equipment, controlling the thickness of a glue layer, scraping away redundant glue by using a scraper, after leveling, ensuring that the thickness of the bonding glue is uniform and consistent, and drying the facing paper coated with the bonding glue for the first time; after the first drying, the adhesive glue is not completely cured;
4) coating and pre-curing of the antibacterial coating: adding the antibacterial coating prepared in the step 2) into another glue groove, coating the antibacterial coating on the other side of the facing paper, adjusting equipment, controlling the thickness of the coating, scraping away the redundant coating by using a scraper, leveling, ensuring the uniform thickness of the antibacterial coating, drying the facing paper coated with the adhesive glue and the antibacterial coating for the second time, and ensuring the temperature of an oven so as to ensure that the curing degree of the adhesive glue and the antibacterial coating on the facing paper after the second drying is about 80-90%; the adhesive glue is not completely cured, and the components of the adhesive glue are close to those of the substrate, so that the curing conditions are the same, the preparation process is easy to control, and in the die pressing process, the adhesive glue and the sheet molding compound can generate cross-linking reaction to generate fusion to form an integrated product, so that the decorative paper and the substrate are combined more firmly;
5) preparing a sheet molding compound:
A. firstly, mixing unsaturated polyester resin, a curing agent, a coupling agent, a filler, styrene, an auxiliary agent and the like to prepare resin paste according to the following components;
Figure BDA0003042043560000051
B. uniformly coating the uniformly mixed resin paste on the PE film by a scraper; cutting the glass fiber by adjusting a cutter, and controlling the length and the content of the glass fiber; the PE films are oppositely adhered to form a sheet material with the upper part and the lower part covered with the PE films, the sheet material is squeezed by a compactor to fully impregnate the glass fibers and the resin, the sheet material is formed, and then the sheet material is rolled;
C. conveying the rolled sheet to a thickening chamber for thickening, wherein the temperature of the thickening chamber is set to be 45 ℃, and the thickening time is 24 hours, so as to obtain the sheet molding compound;
6) and (3) mould pressing, curing and forming: firstly, paving the sheet molding compound prepared in the step 5) into a mold, wherein the paving area of the sheet molding compound is 70% -90% of the orthographic projection area of the finally prepared wallboard, paving the facing paper dried for the second time in the step 4) on the sheet molding compound in the mold, and integrally molding; in the mould pressing process, the mould cavity is arranged above the mould core, the facing paper is close to the mould cavity, and the sheet molding compound is close to the mould core, so that the decorative patterns are prevented from being deformed due to the stretching of the facing paper caused by the flowing of the sheet molding compound at high temperature, and the facing paper is prevented from being folded; the wallboard is characterized in that the surface of the substrate is adhered with the facing paper after mould pressing, an embedding layer is arranged between the substrate and the facing paper, the embedding layer is formed by curing the bonding glue soaked into the facing paper, the bonding glue between the facing paper and the substrate and one side of the sheet molding compound close to the facing paper, and a nano antibacterial layer formed by curing the antibacterial coating is arranged on one side of the facing paper far away from the substrate. The wallboard prepared by the method can greatly improve the appearance of the wallboard, the flexibility and the stability of the facing paper, various comprehensive performances such as chemical reagent resistance and wear resistance and the like while ensuring the cost, and has high peel strength and an antibacterial function.
The steps are distinguished and numbered for convenience of description and understanding, and in the actual preparation, the steps such as the preparation of the adhesive glue and the coating and pre-curing, the preparation of the antibacterial coating and the coating and pre-curing, the preparation of the sheet molding compound and the like can be carried out simultaneously or in a non-sequential manner.
The method comprises the steps of coating glue on one side of the facing paper and coating paint on the other side of the facing paper, namely coating the adhesive glue between the facing paper and the substrate on the facing paper instead of the substrate, so that the facing paper can be fully wetted, the fully wetted facing paper can be better attached to the sheet molding compound during mold pressing, the bad condition that the facing paper is torn during mold pressing can be avoided, and the bonding strength between the facing paper and the substrate is further ensured.
Preferably, the drying conditions of the first drying in the step 3) of pre-curing the adhesive glue are as follows: drying at 120-130 deg.C for 1-2 min; and 4) the drying conditions of the secondary drying in the precuring of the antibacterial coating are as follows: drying at 135 ℃ and 150 ℃ for 1-2 min.
In some embodiments, the coating thickness of the bonding glue is 20-30 μm, and the thickness of the scarf layer formed after curing and die pressing is 10-20 μm; the coating thickness of the antibacterial coating is 50-70 mu m, and the thickness of the nano antibacterial layer formed after curing and mould pressing is 30-50 mu m.
Preferably, in the step 6), the molding conditions in the molding and curing molding are the cavity temperature of 135-. The compression molding cycle is the time interval between the beginning of placing the sheet molding compound and the facing paper for compression molding and the time when the wallboard obtained by compression molding is taken out. The compression molding cycle is too slow, so that the surface of a product is subjected to precuring spots, the defects of material shortage and the like are generated sometimes, the flow speed of Sheet Molding Compounds (SMC) in a mold is increased along with the extension of the compression molding cycle, the product quality tends to increase firstly and then decrease, and the defects that the sheet molding compounds flow fast, air is not easy to discharge, local wrinkles and the like are caused are shown. The low molding temperature can cause poor curing on the surface of the product and cause abnormal surface stripping property; with the increase of the mould pressing temperature, the appearance quality of the sample tends to increase firstly and then decrease, which indicates that the integral mould pressing needs higher reaction temperature; too large a laying area can result in unsmooth air exhaust on the surface of the product, and whitish micropores are generated, and too small a laying area can result in the phenomena of color paper bursting, wrinkling and the like.
The invention provides a nano antibacterial wallboard which comprises a substrate and facing paper compounded with the substrate, wherein the substrate is formed by die-pressing and curing sheet molding compounds, an embedding layer is arranged between the substrate and the facing paper, the embedding layer is formed by curing adhesive glue infiltrated into the facing paper, adhesive glue between the facing paper and the substrate and one side of the sheet molding compounds close to the facing paper, a nano antibacterial layer is arranged on one side of the facing paper far away from the substrate, and the nano antibacterial layer is formed by curing antibacterial coatings; the nano antibacterial wallboard is formed by integrally compression molding the sheet molding compound, the adhesive glue, the facing paper and the antibacterial coating; the antibacterial coating, the adhesive glue and the sheet molding compound all comprise the following raw materials: unsaturated polyester resin, a curing agent, a filler and a cross-linking agent, and the antibacterial coating also comprises nano oxide. The nano antibacterial wallboard is integrally molded, cured and formed by the sheet molding compound, the adhesive glue, the facing paper and the antibacterial coating.
The adhesive glue adopts raw material components similar to the material of the substrate, so that the curing conditions are the same, the preparation process is easy to control, and the adhesive glue can be partially fused with the sheet molding compound during the die pressing, so that the bonding strength between the substrate and the facing paper is high, and the peeling strength is high; the nano antibacterial layer can protect the facing paper and prevent the facing paper from being damaged, so that the wallboard can resist mildew, wear and chemical reagents, the service life of the wallboard is prolonged, and the nano antibacterial wallboard has an antibacterial effect.
Compared with the prior art, the invention has the advantages that: according to the nano antibacterial wallboard disclosed by the invention, the bonding glue with the components similar to those of the substrate is arranged between the facing paper and the substrate, so that the substrate and the facing paper are combined more firmly and reliably, and the nano antibacterial layer is arranged on one side of the facing paper, which is far away from the substrate, so that the damage of the facing paper can be prevented, the service life of the wallboard is prolonged, the nano antibacterial wallboard has an antibacterial and mildewproof effect, and the wallboard can resist wear and chemical reagents. According to the preparation method of the nano antibacterial wallboard, the adhesive glue is coated on one side of the facing paper, the antibacterial coating is coated on the other side of the facing paper, the adhesive glue is similar to the components of the substrate, the adhesive glue and the antibacterial coating are not completely cured before die pressing by adopting a pre-curing mode, and the adhesive glue, the antibacterial coating and the sheet molding compound are cured and formed together during die pressing, so that the preparation process is easy to control, and the combination between the facing paper and the substrate after die pressing is firmer and more reliable; the mode of coating adhesive glue and antibacterial coating on the facing paper is adopted, so that the facing paper can be fully wetted, the facing paper after being fully wetted can be better attached to the sheet molding compound during die pressing, the bad condition that the facing paper is torn during die pressing can be avoided, the yield is improved, and the quality of final wallboard products is ensured.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
EXAMPLE 1 Nano-antibacterial wallboard
The nano antibacterial wallboard in the embodiment comprises a substrate and facing paper compounded with the substrate, wherein the substrate is formed by curing sheet molding compound, an embedding layer is arranged between the substrate and the facing paper, and a nano antibacterial layer is arranged on one side, far away from the substrate, of the facing paper. The scarfing layer is formed by curing the bonding glue soaked into the facing paper, the bonding glue between the facing paper and the substrate and one side of the sheet molding compound close to the facing paper, and the nano antibacterial layer is formed by curing the antibacterial coating. The nano antibacterial wallboard is formed by integrally compression molding a sheet molding compound, adhesive glue, facing paper and antibacterial coating.
The adhesive glue and the substrate comprise the following raw materials: unsaturated polyester resin, a curing agent, a coupling agent, a filler and styrene. The adhesive glue adopts raw material components similar to the substrate material, so that the curing conditions are the same, the preparation process is easy to control, and the adhesive glue can be partially fused with the sheet molding compound during the die pressing, so that the bonding strength between the substrate of the final product and the facing paper is high, and the peel strength is high.
The antibacterial coating comprises a nano oxide component such as nano silicon dioxide, and a nano antibacterial layer formed by curing the antibacterial coating can protect the facing paper, prevent the facing paper from being damaged, prolong the service life of the wallboard and enable the wallboard to be antibacterial, mildewproof, wear-resistant and chemical reagent resistant.
The thickness of the scarfing layer is controlled at 10-20 μm, and the thickness of the nano antibacterial layer is controlled at 30-50 μm to ensure the whole thickness of the wallboard.
The substrate in the embodiment is the sheet molding compound, and the bonding glue is made of raw materials similar to the sheet molding compound, so that when the sheet molding compound and the die are molded, the sheet molding compound and the bonding glue can generate cross-linking reaction to generate partial fusion to form an integrated product, and the combination of the facing paper and the substrate is firmer and more stable.
EXAMPLE 2 preparation of Nano antibacterial wallboard
The embodiment provides a preparation method of the nano antibacterial wallboard in the embodiment 1, which comprises the following steps:
1) preparing adhesive glue: adding unsaturated polyester resin, a curing agent, a coupling agent, a filler and styrene into a glue barrel according to the following proportion, stirring at room temperature for 25min and the rotating speed of 350r/min, and uniformly stirring for later use.
Figure BDA0003042043560000081
2) Preparing an antibacterial coating: adding unsaturated polyester resin, a curing agent, a coupling agent, a filler, nano-silica, a release agent and styrene into a rubber barrel according to the following proportion, stirring at room temperature for 25min and at the rotating speed of 350r/min, and uniformly stirring for later use.
Figure BDA0003042043560000082
Figure BDA0003042043560000091
3) Coating and pre-curing of the adhesive glue: adding the bonding glue prepared in the step 1) into a glue groove, coating the bonding glue on one side of the facing paper, adjusting equipment, controlling the thickness of a glue layer of the bonding glue to be 25 micrometers, scraping away redundant glue by using a scraper, ensuring uniform thickness of the bonding glue after leveling, and drying the facing paper coated with the bonding glue for the first time; after the first drying, the adhesive glue is not completely cured; the drying conditions for the first drying were: drying at 125 deg.C for 2 min.
4) Coating and pre-curing of the antibacterial coating: adding the antibacterial coating prepared in the step 2) into another glue tank, coating the antibacterial coating on the other side of the facing paper, adjusting equipment, controlling the coating thickness of the antibacterial coating to be 60 micrometers, scraping away redundant coating by using a scraper, leveling, ensuring the uniform thickness of the antibacterial coating, drying the facing paper coated with the adhesive glue and the antibacterial coating for the second time, and ensuring the temperature of an oven so as to ensure that the curing degree of the adhesive glue and the antibacterial coating on the facing paper after the second drying is about 85%. The drying conditions for the second drying were: drying at 145 deg.C for 1.5 min. The adhesive glue is not completely cured, and the components of the adhesive glue and the components of the substrate are close, so that the curing conditions are the same, the preparation process is easy to control, the adhesive glue and the substrate can generate cross-linking reaction in the die pressing process to form an integrated product, and the decorative paper and the substrate are combined more firmly.
In the embodiment, the coating thickness of the bonding glue is 25 μm, and the thickness of the scarf layer formed after die pressing is about 15 μm; the coating thickness of the antibacterial coating is 60 μm, and the thickness of the nano antibacterial layer formed after the mold pressing is about 40 μm.
5) Preparing a sheet molding compound:
A. firstly, mixing unsaturated polyester resin, a curing agent, a coupling agent, a filler, styrene, an auxiliary agent, glass fiber and the like to prepare resin paste according to the following components;
in this embodiment, the sheet molding compound specifically includes the following raw materials in parts by weight, wherein E4 is an accelerator cobalt isooctanoate:
Figure BDA0003042043560000092
B. uniformly coating the uniformly mixed resin paste on the PE film by a scraper; cutting the glass fiber by adjusting a cutter, and controlling the length of the glass fiber; the PE films are oppositely adhered to form a sheet material with the upper part and the lower part covered with the PE films, the sheet material is squeezed by a compactor to fully impregnate the glass fibers and the resin, the sheet material is formed, and then the sheet material is rolled;
C. conveying the rolled sheet to a thickening chamber for thickening, wherein the temperature of the thickening chamber is set to be 45 ℃, and the thickening time is 24 hours, so as to obtain the sheet molding compound;
6) and (3) mould pressing, curing and forming: firstly, paving the sheet molding compound into a mold, wherein the paving area of the sheet molding compound is 80% of the orthographic projection area of the finally prepared wallboard, paving the pre-cured facing paper in the step 4) on the sheet molding compound in the mold, and integrally molding and forming the sheet molding compound; in the mould pressing process, the mould cavity is arranged above the mould core, the facing paper is close to the mould cavity, and the sheet molding compound is close to the mould core, so that the decorative patterns are prevented from being deformed due to the stretching of the facing paper caused by the flowing of the sheet molding compound at high temperature, and the facing paper is prevented from being folded; and after mould pressing, obtaining the nano antibacterial wallboard with the surface of the substrate attached with the facing paper, wherein an embedding layer is arranged between the substrate and the facing paper, the embedding layer is formed by curing the bonding glue soaked into the facing paper, the bonding glue between the facing paper and the substrate and one side of the sheet molding compound close to the facing paper, and the nano antibacterial layer formed by curing the antibacterial coating is arranged on one side of the facing paper far away from the substrate.
In the embodiment, in the step 5), the molding conditions in the mold pressing and curing molding are that the mold cavity is 152 ℃, the mold core is 143 ℃, the pressure maintaining time is 180s, the molding cycle is 200 s/piece, and the laying area is 80%. The compression molding cycle is the time interval between the beginning of placing the sheet molding compound and the facing paper for compression molding and the time when the wallboard obtained by compression molding is taken out.
The viscosity of the unsaturated polyester resin in the above material is 1100-1400mPa.s (23 ℃); the aluminum hydroxide powder is aluminum hydroxide micropowder with the particle size of less than or equal to 10 mu m. The steps are distinguished and numbered for convenience of description and understanding, and in actual preparation, the steps such as preparation of the adhesive glue and coating and pre-curing, preparation of the antibacterial coating and pre-curing, preparation of the substrate and the like can be carried out simultaneously or sequentially.
The method of coating glue on one side of the facing paper and coating paint on the other side of the facing paper is adopted, so that the facing paper can be fully wetted, the fully wetted facing paper can be better attached to the sheet molding compound during die pressing, the bad condition that the facing paper is torn during die pressing can be avoided, and the bonding strength between the facing paper and the substrate and the wear resistance, chemical corrosion resistance, mildew prevention and bacteria resistance of the surface of the facing paper can be ensured.
EXAMPLE 3 preparation of Nano antibacterial wallboard
The embodiment provides a preparation method of the nano antibacterial wallboard in the embodiment 1, which comprises the following steps:
1) preparing adhesive glue: adding unsaturated polyester resin, curing agent, coupling agent, filler and styrene into a rubber barrel according to the following proportion, stirring for 30min at room temperature and at the rotating speed of 300r/min, and uniformly stirring for later use.
Figure BDA0003042043560000111
2) Preparing an antibacterial coating: adding unsaturated polyester resin, a curing agent, a coupling agent, a filler, nano-silica, a release agent and styrene into a rubber barrel according to the following proportion, stirring for 30min at room temperature at the rotating speed of 300r/min, and uniformly stirring for later use.
Figure BDA0003042043560000112
3) Coating and pre-curing of the adhesive glue: adding the bonding glue prepared in the step 1) into a glue groove, coating the bonding glue on one side of the facing paper, adjusting equipment, controlling the thickness of a glue layer of the bonding glue to be 30 micrometers, scraping away redundant glue by using a scraper, ensuring uniform thickness of the bonding glue after leveling, and drying the facing paper coated with the bonding glue for the first time; after the first drying, the adhesive glue is not completely cured; the drying conditions for the first drying were: drying at 130 deg.C for 1 min.
4) Coating and pre-curing of the antibacterial coating: adding the antibacterial coating prepared in the step 2) into another glue tank, coating the antibacterial coating on the other side of the facing paper, adjusting equipment, controlling the coating thickness of the antibacterial coating to be 70 micrometers, scraping away redundant coating by using a scraper, leveling, ensuring the uniform thickness of the antibacterial coating, drying the facing paper coated with the adhesive glue and the antibacterial coating for the second time, and ensuring the temperature of an oven so as to ensure that the curing degree of the adhesive glue and the antibacterial coating on the facing paper after the second drying is about 90%. The drying conditions for the second drying were: drying at 150 deg.C for 1 min.
In the embodiment, the coating thickness of the bonding glue is 30 μm, and the thickness of the scarf layer formed after die pressing is about 20 μm; the coating thickness of the antibacterial coating is 70 μm, and the thickness of the nano antibacterial layer formed after the mold pressing is about 50 μm.
5) Preparing a sheet molding compound:
A. firstly, mixing unsaturated polyester resin, a curing agent, a coupling agent, a filler, styrene, an auxiliary agent, glass fiber and the like to prepare resin paste according to the following components;
in this embodiment, the sheet molding compound specifically includes the following raw materials in parts by weight:
Figure BDA0003042043560000121
B. uniformly coating the uniformly mixed resin paste on the PE film by a scraper; cutting the glass fiber by adjusting a cutter, and controlling the length of the glass fiber; the PE films are oppositely adhered to form a sheet material with the upper part and the lower part covered with the PE films, the sheet material is squeezed by a compactor to fully impregnate the glass fibers and the resin, the sheet material is formed, and then the sheet material is rolled;
C. conveying the rolled sheet to a thickening chamber for thickening, wherein the temperature of the thickening chamber is set to be 45 ℃, and the thickening time is 24 hours, so as to obtain the sheet molding compound;
6) and (3) mould pressing, curing and forming: firstly, paving the sheet molding compound into a mold, wherein the paving area of the sheet molding compound is 90% of the orthographic projection area of the finally prepared wallboard, paving the pre-cured facing paper in the step 4) on the sheet molding compound in the mold, and integrally molding and forming the sheet molding compound; in the mould pressing process, the mould cavity is arranged above the mould core, the facing paper is close to the mould cavity, and the sheet molding compound is close to the mould core, so that the decorative patterns are prevented from being deformed due to the stretching of the facing paper caused by the flowing of the sheet molding compound at high temperature, and the facing paper is prevented from being folded; and after mould pressing, obtaining the nano antibacterial wallboard with the surface of the substrate attached with the facing paper, wherein an embedding layer is arranged between the substrate and the facing paper, the embedding layer is formed by curing the bonding glue soaked into the facing paper, the bonding glue between the facing paper and the substrate and one side of the sheet molding compound close to the facing paper, and the nano antibacterial layer formed by curing the antibacterial coating is arranged on one side of the facing paper far away from the substrate.
In the embodiment, in the step 5) of the mould pressing curing molding, the mould pressing conditions are 155 ℃ of a mould cavity, 145 ℃ of a core, 180s of pressure maintaining time, the mould pressing cycle is 240 s/piece, and the laying area is 90%. The compression molding cycle is the time interval between the beginning of placing the sheet molding compound and the facing paper for compression molding and the time when the wallboard obtained by compression molding is taken out.
EXAMPLE 4 preparation of Nano antibacterial wallboard
The embodiment provides a preparation method of the nano antibacterial wallboard in the embodiment 1, which comprises the following steps:
1) preparing adhesive glue: adding unsaturated polyester resin, curing agent, coupling agent, filler and styrene into a rubber barrel according to the following proportion, stirring at room temperature for 20min and at the rotating speed of 400r/min, and uniformly stirring for later use.
Figure BDA0003042043560000131
2) Preparing an antibacterial coating: adding unsaturated polyester resin, a curing agent, a coupling agent, a filler, nano-silica, a release agent and styrene into a rubber barrel according to the following proportion, stirring at room temperature for 20min and a rotation speed of 400r/min, and uniformly stirring for later use.
Figure BDA0003042043560000132
3) Coating and pre-curing of the adhesive glue: adding the bonding glue prepared in the step 1) into a glue groove, coating the bonding glue on one side of the facing paper, adjusting equipment, controlling the thickness of a glue layer of the bonding glue to be 20 micrometers, scraping away redundant glue by using a scraper, ensuring uniform thickness of the bonding glue after leveling, and drying the facing paper coated with the bonding glue for the first time; after the first drying, the adhesive glue is not completely cured; the drying conditions for the first drying were: drying at 120 deg.C for 2 min.
4) Coating and pre-curing of the antibacterial coating: adding the antibacterial coating prepared in the step 2) into another glue tank, coating the antibacterial coating on the other side of the facing paper, adjusting equipment, controlling the coating thickness of the antibacterial coating to be 50 microns, scraping away redundant coating by using a scraper, leveling, ensuring the uniform thickness of the antibacterial coating, drying the facing paper coated with the adhesive glue and the antibacterial coating for the second time, and ensuring the temperature of an oven so as to ensure that the curing degree of the adhesive glue and the antibacterial coating on the facing paper after the second drying is about 80%. The drying conditions for the second drying were: drying at 135 deg.C for 2 min.
In the embodiment, the coating thickness of the bonding glue is 20 μm, and the thickness of the scarf layer formed after die pressing is about 10 μm; the coating thickness of the antibacterial coating is 50 μm, and the thickness of the nano antibacterial layer formed after the mold pressing is about 30 μm.
5) Preparing a sheet molding compound:
A. firstly, mixing unsaturated polyester resin, a curing agent, a coupling agent, a filler, styrene, an auxiliary agent, glass fiber and the like to prepare resin paste according to the following components;
in this embodiment, the sheet molding compound specifically includes the following raw materials in parts by weight:
Figure BDA0003042043560000141
B. uniformly coating the uniformly mixed resin paste on the PE film by a scraper; cutting the glass fiber by adjusting a cutter, and controlling the length of the glass fiber; the PE films are oppositely adhered to form a sheet material with the upper part and the lower part covered with the PE films, the sheet material is squeezed by a compactor to fully impregnate the glass fibers and the resin, the sheet material is formed, and then the sheet material is rolled;
C. conveying the rolled sheet to a thickening chamber for thickening, wherein the temperature of the thickening chamber is set to be 45 ℃, and the thickening time is 24 hours, so as to obtain the sheet molding compound;
6) and (3) mould pressing, curing and forming: firstly, paving sheet molding compound into a mold, wherein the substrate is the sheet molding compound, the paving area of the sheet molding compound is 70% of the orthographic projection area of the finally prepared wallboard, paving the pre-cured facing paper in the step 4) on the sheet molding compound in the mold, and integrally molding and forming; in the mould pressing process, the mould cavity is arranged above the mould core, the facing paper is close to the mould cavity, and the sheet molding compound is close to the mould core, so that the decorative patterns are prevented from being deformed due to the stretching of the facing paper caused by the flowing of the sheet molding compound at high temperature, and the facing paper is prevented from being folded; and after mould pressing, obtaining the nano antibacterial wallboard with the surface of the substrate attached with the facing paper, wherein an embedding layer is arranged between the substrate and the facing paper, the embedding layer is formed by curing the bonding glue soaked into the facing paper, the bonding glue between the facing paper and the substrate and one side of the sheet molding compound close to the facing paper, and the nano antibacterial layer formed by curing the antibacterial coating is arranged on one side of the facing paper far away from the substrate.
In the embodiment, in the step 5), the mould pressing conditions in the mould pressing curing forming process are that the mould cavity is 135 ℃, the mould core is 125 ℃, the pressure maintaining time is 80s, the mould pressing period is 140 s/piece, and the laying area is 70%. The compression molding cycle is the time interval between the beginning of placing the sheet molding compound and the facing paper for compression molding and the time when the wallboard obtained by compression molding is taken out.
Comparative example 1
The wallboard product in the comparative example is obtained by coating common glue on two sides of the facing paper and then performing die pressing on the facing paper and the sheet molding compound. The common glue is as follows: ortho-benzene type unsaturated polyester resin glue (series HS-902 of Huake). The preparation method is similar to that in example 2.
Example 5 testing and analysis
The wallboard products prepared in examples 2, 3 and 4 and comparative example 1 were tested for peel resistance, antibacterial rate, abrasion resistance, chemical corrosion resistance, etc., wherein peel resistance, antibacterial rate and chemical corrosion resistance were tested according to the method specified in GB/T13095-2008, and antibacterial rate was tested according to the method specified in annex B of QB/T2591-. The test results were as follows:
TABLE 1 results of the experiment
Resistance to peeling Antibacterial rate Amount of wear Chemical resistance
Example 2 Peeling off 3% 91.50％ 16.3mg/100r No anomaly, Delta E ═ 1.5
Example 3 Peeling off 2% 92.30％ 15.1mg/100r No anomaly, Delta E ═ 1.2
Example 4 Not peeled off 85.8％ 16.8mg/100r No abnormality, Δ E ═ 0.8
Comparative example 1 Stripping by 8% 50.20％ 17.2mg/100r No anomaly, Delta E ═ 1.8
Table 1 shows that: the wallboard products prepared by the methods of examples 2-4 are significantly better than the wallboard products prepared by the conventional glue in comparative example 1 in peel resistance, antimicrobial rate, abrasion resistance, chemical resistance, etc.
In the preparation method of the nano antibacterial wallboard in the embodiments 2-4, the adhesive glue is coated on one side of the facing paper, and the antibacterial coating is coated on the other side of the facing paper, the components of the adhesive glue are similar to those of the substrate, and the adhesive glue and the antibacterial coating are not completely cured before the die pressing by adopting a pre-curing mode, so that the combination between the facing paper and the substrate after the die pressing is firmer and more reliable; the mode of coating adhesive glue and antibacterial coating on the facing paper is adopted, so that the facing paper can be fully wetted, the facing paper after being fully wetted can be better attached to the sheet molding compound during die pressing, the bad condition that the facing paper is torn during die pressing can be avoided, the yield is improved, and the quality of final wallboard products is ensured.
The nano antibacterial wallboard prepared in the embodiment 2-4 has the bonding glue with the similar components of the base plate between the facing paper and the base plate, so that the curing conditions are the same, the preparation process is easy to control, the combination between the base plate and the facing paper is firmer and more reliable, the nano antibacterial layer is arranged on one side of the facing paper far away from the base plate, the facing paper can be prevented from being damaged, the service life of the wallboard is prolonged, the antibacterial and mildewproof effects are achieved, and the wallboard can resist wear and chemical reagents.
The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the invention, and not to limit the scope of the invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the scope of the present invention.

Claims (10)

1. A nanometer antibacterial wallboard comprises a substrate and facing paper compounded with the substrate, wherein the substrate is formed by sheet molding compound after die pressing and curing, and the nanometer antibacterial wallboard is characterized in that an embedding layer is arranged between the substrate and the facing paper, the embedding layer is formed by adhesive glue infiltrated into the facing paper, adhesive glue between the facing paper and the substrate and one side of the sheet molding compound close to the facing paper after curing, a nanometer antibacterial layer is arranged on one side of the facing paper far away from the substrate, and the nanometer antibacterial layer is formed by antibacterial coating after curing;
the antibacterial coating, the adhesive glue and the sheet molding compound all comprise the following raw materials: unsaturated polyester resin, a curing agent, a filler and a cross-linking agent, and the antibacterial coating also comprises nano oxide.
2. The nano-antibacterial wallboard according to claim 1, wherein the nano-antibacterial wallboard is integrally molded, cured and formed by the sheet molding compound, the adhesive glue, the facing paper and the antibacterial coating.
3. The nano-antibacterial wallboard of claim 1, wherein the mass percentage of unsaturated polyester resin in the adhesive glue is greater than the mass percentage of unsaturated polyester resin in the substrate; the mass percentage of the filler in the adhesive glue is less than that of the filler in the substrate.
4. The nano-antibacterial wallboard of claim 3, characterized in that the adhesive glue comprises the following raw materials in parts by weight:
Figure FDA0003042043550000011
5. the nano-antibacterial wallboard of claim 3, wherein the sheet molding compound comprises the following raw materials in parts by weight:
Figure FDA0003042043550000012
6. the nano-antibacterial wallboard of claim 1, wherein: the antibacterial coating comprises the following raw materials in parts by weight:
Figure FDA0003042043550000013
Figure FDA0003042043550000021
7. the nano-antibacterial wallboard of claim 1, wherein the viscosity of the unsaturated polyester resin is 1100-1400mpa.s at 23 ℃; the viscosity of the adhesive glue is 1000-1300mPa.s at 23 ℃; the viscosity of the antibacterial coating is 1200-1500mPa.s at 23 ℃.
8. A method for preparing nano antibacterial wallboard according to any one of claims 1 to 7, comprising the following steps:
1) respectively preparing adhesive glue and an antibacterial coating, coating the adhesive glue on one side of facing paper, coating the antibacterial coating on the other side of the facing paper, and drying the facing paper;
2) paving the sheet molding compound into a mold, paving the dried facing paper on the sheet molding compound in the mold, enabling the adhesive glue to be positioned between the facing paper and the sheet molding compound, and then integrally molding and forming; the wallboard with the surface of the substrate attached with the facing paper is obtained after mould pressing, an embedding layer is arranged between the substrate and the facing paper, the embedding layer is formed by curing adhesive glue infiltrated into the facing paper, adhesive glue between the facing paper and the sheet molding compound and one side of the sheet molding compound close to the facing paper, and a nano antibacterial layer formed by curing the antibacterial coating is arranged on one side of the facing paper far away from the substrate.
9. The method of claim 8, wherein the drying comprises a first drying after the adhesive glue is applied to one side of the facing paper and a second drying after the antibacterial coating is applied to the other side of the facing paper.
10. The method for preparing nano antibacterial wallboard according to claim 9, wherein the drying conditions of the first drying are as follows: drying at 120-130 deg.C for 1-2 min; the drying conditions of the second drying are as follows: drying at 135 ℃ and 150 ℃ for 1-2 min.
CN202110460403.4A 2019-10-28 2019-10-28 Nano antibacterial wallboard and preparation method thereof Active CN113202246B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110460403.4A CN113202246B (en) 2019-10-28 2019-10-28 Nano antibacterial wallboard and preparation method thereof

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110460403.4A CN113202246B (en) 2019-10-28 2019-10-28 Nano antibacterial wallboard and preparation method thereof
CN201911030358.8A CN111005520B (en) 2019-10-28 2019-10-28 Preparation method of nano antibacterial wallboard and nano antibacterial wallboard

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CN201911030358.8A Division CN111005520B (en) 2019-10-28 2019-10-28 Preparation method of nano antibacterial wallboard and nano antibacterial wallboard

Publications (2)

Publication Number Publication Date
CN113202246A true CN113202246A (en) 2021-08-03
CN113202246B CN113202246B (en) 2024-09-03

Family

ID=70111565

Family Applications (2)

Application Number Title Priority Date Filing Date
CN201911030358.8A Active CN111005520B (en) 2019-10-28 2019-10-28 Preparation method of nano antibacterial wallboard and nano antibacterial wallboard
CN202110460403.4A Active CN113202246B (en) 2019-10-28 2019-10-28 Nano antibacterial wallboard and preparation method thereof

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CN201911030358.8A Active CN111005520B (en) 2019-10-28 2019-10-28 Preparation method of nano antibacterial wallboard and nano antibacterial wallboard

Country Status (2)

Country Link
CN (2) CN111005520B (en)
WO (1) WO2021083042A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111005520B (en) * 2019-10-28 2021-04-23 苏州科硕住宅科技有限公司 Preparation method of nano antibacterial wallboard and nano antibacterial wallboard
CN112980079A (en) * 2021-02-23 2021-06-18 高时(厦门)石业有限公司 Wood-plastic antibacterial board and preparation method thereof

Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1167403A (en) * 1966-11-19 1969-10-15 Taiichi Ono Moulding Patterned Thermoplastic Bodies
KR20050004649A (en) * 2003-07-03 2005-01-12 동화기업 주식회사 The Manufacturing Process of Antibiotic Laminate Flooring with Nano Silver Ion and the Antibiotic Laminate Flooring Producted by This Manufacturing Process
KR20080006663A (en) * 2006-07-13 2008-01-17 (주)신광보드텍 The high-glossy synthetic resin sheet manufacture method, the synthetic resin sheet and oriented stand board manufacture method , manufactured goods
CN101434119A (en) * 2008-12-16 2009-05-20 苏州工业园区科逸卫浴设备有限公司 Compression moulding forming method, reinforced plastic and special facing material for the method
CN101619160A (en) * 2009-08-18 2010-01-06 振石集团华美复合新材料有限公司 Antimicrobial sheet molding compound and preparation method thereof
KR101066146B1 (en) * 2011-06-16 2011-09-20 주식회사 에스아이켐 Environmental friendly epoxy nanocomposite waterproof coating agent waterproof construction method
CN103773292A (en) * 2012-10-19 2014-05-07 南京恒安树脂化学有限公司 Preparation method for dry unsaturated polyester resin adhesive
CN104018402A (en) * 2014-06-12 2014-09-03 佛山市天元汇邦装饰材料有限公司 Novel antibacterial mould-proof and moisture-proof artificial board decorative paper and preparation method thereof
CN106010151A (en) * 2016-06-01 2016-10-12 陈何怀 Antibacterial decorative board and preparation method thereof
CN106364071A (en) * 2016-08-31 2017-02-01 河南永威安防股份有限公司 Antibacterial, mould proof, corrosion-resistant and fireproof high pressure decorative sheet and production method thereof
CN107057312A (en) * 2017-04-10 2017-08-18 振石集团华美新材料有限公司 The forming method of glass fiber reinforcement lightweight sheet molding compound and its compound laying
CN107461010A (en) * 2017-06-23 2017-12-12 苏州科逸住宅设备股份有限公司 Manufacture method for the colored decorating plate of integral bathroom
CN109233133A (en) * 2017-06-06 2019-01-18 上海前引科技有限公司 A kind of antibacterial and mouldproof negative ion wall self-adhesion decorative panel, preparation method and application
US20190126570A1 (en) * 2017-10-30 2019-05-02 Cozy Industries, Inc. Manufacturing method of color decorative plate
CN110216748A (en) * 2019-05-31 2019-09-10 千年舟新材科技集团有限公司 With antibacterial functions without aldehyde UV woodwork plate and its preparation process
CN110315819A (en) * 2018-03-31 2019-10-11 孙学民 A kind of antibacterial and mouldproof plate and preparation method thereof

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0814184B2 (en) * 1991-04-05 1996-02-14 鹿島建設株式会社 Bio interior materials
JPH0868181A (en) * 1994-08-30 1996-03-12 Shigemi Ikoma Building material with antibacterial agent
CN1118525C (en) * 2001-10-25 2003-08-20 四川升达林产有限公司 Antibacterial antimildew surface decorative material and its application method
CN2587982Y (en) * 2002-06-27 2003-11-26 圣象实业（深圳）有限公司 Nano far infrared silver series antibiosis veneer
CN2736439Y (en) * 2004-08-23 2005-10-26 黄醒帆 Fire proof veneer
JP2009256897A (en) * 2008-04-14 2009-11-05 Meisei Fudosan Kk Building material using chaff charcoal, and manufacturing method therefor
CN103362272A (en) * 2013-05-02 2013-10-23 泰州市华丽塑料有限公司 Antibacterial PVC composite shingle
CN103266738B (en) * 2013-05-15 2015-11-18 余建平 A kind of dalle and preparation method thereof
CN204703327U (en) * 2015-04-08 2015-10-14 宿迁良木新材料有限公司 A kind of antibacterial fire proof veneer
CN107868361A (en) * 2017-11-15 2018-04-03 安徽天润塑业有限公司 A kind of SPC impregnates paper composite floor board
CN107892863A (en) * 2017-12-14 2018-04-10 湖南阳光新材料有限公司 A kind of PVC floor plastic-rubber antibacterial type UV coating
CN109763382B (en) * 2019-01-29 2021-03-09 成都市美康三杉木业有限公司 Method for manufacturing negative ion impregnated paper/negative ion veneer artificial board base material/negative ion veneer artificial board
CN110219428A (en) * 2019-05-14 2019-09-10 广东欧铭新材料科技有限公司 A kind of fire-proof and water-proof composite floor board and decorative panel
CN110258132A (en) * 2019-06-12 2019-09-20 杭州新福华无纺布有限公司 One kind removing formaldehyde stamp wall paper and its production technology
CN111005520B (en) * 2019-10-28 2021-04-23 苏州科硕住宅科技有限公司 Preparation method of nano antibacterial wallboard and nano antibacterial wallboard

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1167403A (en) * 1966-11-19 1969-10-15 Taiichi Ono Moulding Patterned Thermoplastic Bodies
KR20050004649A (en) * 2003-07-03 2005-01-12 동화기업 주식회사 The Manufacturing Process of Antibiotic Laminate Flooring with Nano Silver Ion and the Antibiotic Laminate Flooring Producted by This Manufacturing Process
KR20080006663A (en) * 2006-07-13 2008-01-17 (주)신광보드텍 The high-glossy synthetic resin sheet manufacture method, the synthetic resin sheet and oriented stand board manufacture method , manufactured goods
CN101434119A (en) * 2008-12-16 2009-05-20 苏州工业园区科逸卫浴设备有限公司 Compression moulding forming method, reinforced plastic and special facing material for the method
CN101619160A (en) * 2009-08-18 2010-01-06 振石集团华美复合新材料有限公司 Antimicrobial sheet molding compound and preparation method thereof
KR101066146B1 (en) * 2011-06-16 2011-09-20 주식회사 에스아이켐 Environmental friendly epoxy nanocomposite waterproof coating agent waterproof construction method
CN103773292A (en) * 2012-10-19 2014-05-07 南京恒安树脂化学有限公司 Preparation method for dry unsaturated polyester resin adhesive
CN104018402A (en) * 2014-06-12 2014-09-03 佛山市天元汇邦装饰材料有限公司 Novel antibacterial mould-proof and moisture-proof artificial board decorative paper and preparation method thereof
CN106010151A (en) * 2016-06-01 2016-10-12 陈何怀 Antibacterial decorative board and preparation method thereof
CN106364071A (en) * 2016-08-31 2017-02-01 河南永威安防股份有限公司 Antibacterial, mould proof, corrosion-resistant and fireproof high pressure decorative sheet and production method thereof
CN107057312A (en) * 2017-04-10 2017-08-18 振石集团华美新材料有限公司 The forming method of glass fiber reinforcement lightweight sheet molding compound and its compound laying
CN109233133A (en) * 2017-06-06 2019-01-18 上海前引科技有限公司 A kind of antibacterial and mouldproof negative ion wall self-adhesion decorative panel, preparation method and application
CN107461010A (en) * 2017-06-23 2017-12-12 苏州科逸住宅设备股份有限公司 Manufacture method for the colored decorating plate of integral bathroom
US20190126570A1 (en) * 2017-10-30 2019-05-02 Cozy Industries, Inc. Manufacturing method of color decorative plate
CN110315819A (en) * 2018-03-31 2019-10-11 孙学民 A kind of antibacterial and mouldproof plate and preparation method thereof
CN110216748A (en) * 2019-05-31 2019-09-10 千年舟新材科技集团有限公司 With antibacterial functions without aldehyde UV woodwork plate and its preparation process

Also Published As

Publication number Publication date
CN111005520A (en) 2020-04-14
CN111005520B (en) 2021-04-23
WO2021083042A1 (en) 2021-05-06
CN113202246B (en) 2024-09-03

Similar Documents

Publication Publication Date Title
CN111005520B (en) Preparation method of nano antibacterial wallboard and nano antibacterial wallboard
CN101016434A (en) Ultraviolet light ultra-low-temperature solidity powder coating
CN112480803A (en) Water-based low-gloss photocureable coating and preparation method thereof
CN108949046B (en) EVA hot melt adhesive film for wall cloth and preparation method thereof
TW201716523A (en) Topcoat composition, method of coating substrates with the same, and substrate
CN101372565A (en) High adhesion strength porcelain-based coating
CN113652168A (en) Anti-aging polyethylene pipe and preparation method thereof
CN111253837B (en) Water-based one-coating UV (ultraviolet) curing epoxy acrylate coating and preparation method thereof
CN115572543B (en) Non-cured asphalt waterproof paint and preparation method and application thereof
CN102277026A (en) Lacquer putty for block board and preparation method thereof
US10570280B2 (en) Sound hydrophobic polymeric surfacing
CN112794937A (en) High-molecular polymer emulsion and preparation method thereof, functional coating, film layer and waterproof roll
CN113061399A (en) PVC baking varnish adhesive tape for metal baking varnish vehicle and preparation method thereof
CN111778766A (en) Calcium silicate board hot-pressing veneering melamine impregnated paper and manufacturing method thereof
CN114213962B (en) Acrylic ester coating and preparation method and application thereof
CN115651500A (en) UV (ultraviolet) primer-topcoat integrated paint for 3D printing plate and preparation method thereof
CN112942718B (en) Integral bathroom wallboard and preparation method thereof
CN113563828A (en) Foaming hot melt adhesive applied to filter and preparation method
EP3502205B1 (en) Silane modified wood adhesive with improved stability
CN106752739A (en) A kind of graphite oxide ene-type UV coating and preparation method thereof
KR100232094B1 (en) Paste type compositions for sealing and vibration damping of a car's panel
CN111004600A (en) Novel glue for stone compounding
CN112622239A (en) Colored bathroom wallboard and preparation method thereof
CN117050683B (en) Water-based quick-drying type edge sealing adhesive and preparation method thereof
CN118933293A (en) Method for preparing integral bathroom wallboard

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant