CN111847987A - Whole-body pearl artificial stone and preparation method thereof - Google Patents
Whole-body pearl artificial stone and preparation method thereof Download PDFInfo
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- CN111847987A CN111847987A CN202010773396.9A CN202010773396A CN111847987A CN 111847987 A CN111847987 A CN 111847987A CN 202010773396 A CN202010773396 A CN 202010773396A CN 111847987 A CN111847987 A CN 111847987A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/10—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B26/18—Polyesters; Polycarbonates
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/04—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B26/06—Acrylates
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/2038—Resistance against physical degradation
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/54—Substitutes for natural stone, artistic materials or the like
- C04B2111/542—Artificial natural stone
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/80—Optical properties, e.g. transparency or reflexibility
- C04B2111/82—Coloured materials
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
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- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Macromonomer-Based Addition Polymer (AREA)
Abstract
The invention provides a full-body pearly-luster artificial stone and a preparation method thereof, relating to the technical field of artificial stones. The feed comprises the following raw materials in parts by weight: 0.1-3 parts of pearl powder, 0.1-3 parts of pigment, 9.85-34.7 parts of resin, 0-0.05 part of accelerator, 0.05-1.7 parts of curing agent, 0.3-1.7 parts of silane coupling agent, 0-80 parts of quartz permeable sand, 0-80 parts of glass and 10-70 parts of aluminum hydroxide. The artificial stone has continuous pearl grains and has the effects of full pearly luster, high hardness, wear resistance, strong stereoscopic impression and the like.
Description
Technical Field
The invention relates to the technical field of artificial stones, in particular to a full-body pearly-luster artificial stone and a preparation method thereof.
Background
The artificial stone is a composite material with stone texture, which is processed by using resin, cement or other adhesive materials as a binder, using natural/waste stone crushed aggregates and other additives as main aggregates through the working procedures of bonding, stirring, mixing, vacuum pressing, vibration molding, condensation, solidification and the like. It has the advantages of no toxicity, no radioactivity, oil resistance, stain resistance, bacteria resistance, mildew resistance, wear resistance, impact resistance, easy maintenance and the like, and is widely applied to the decoration of indoor and outdoor floors, walls and table tops. The artificial stone not only has the incomparable advantages of natural stones such as various colors, fine textures, gorgeous patterns and the like, but also can simulate or even surpass the appearance of the natural stones in a manual intervention mode, so the artificial stone can gradually replace the natural stones.
At present, an acrylic pearlized panel is sold in the market and generally comprises a base material, a pearlized layer and an organic glass layer, wherein the pearlized effect is provided by a layer of uniformly distributed pearlized pigment, and the organic glass on the surface plays a role in light transmission and protection. Although the artificial stone has a certain pearly-luster effect, the artificial stone has strong plastic feeling, the organic glass on the surface of the artificial stone has low hardness and is not wear-resistant, the artificial stone is not easy to repair after scratching, and the artificial stone has poor stability of a multilayer structure, is easy to crack and has low market acceptance.
Disclosure of Invention
Therefore, it is necessary to provide a whole-body pearly-luster artificial stone which has continuous pearly-luster lines and has the advantages of whole-body pearly luster, high hardness, wear resistance, strong stereoscopic impression and the like.
The full-body pearly-luster artificial stone comprises the following raw materials in parts by weight:
in the raw materials of the whole-body pearly-luster artificial stone, aggregates and powder are replaced by quartz, glass and aluminum hydroxide with higher light transmittance, resin with pearly-luster powder is matched on the basis of the fine-particle light-transmitting material, the pearly-luster powder has small particles, smooth surface and higher oil absorption value, the bonding strength of the pearly-luster powder and the resin can be improved by adding a silane coupling agent, and the product can have continuous pearly-luster grains by physical stirring during preparation; compared with the prior common acrylic pearly-lustre plate consisting of a three-layer structure of a base material, a pearly-lustre layer and organic glass, the full-body pearly-lustre artificial stone has higher light transmission, surface hardness and wear resistance, stronger color expression, more three-dimensional and transparent textures and more atmospheric and gorgeous appearance.
Wherein, quartz sand penetration refers to quartz particles with light transmittance of more than 60%.
In one embodiment, the quartz permeable sand is 30-80 parts by weight.
In one embodiment, the glass is 30-80 parts by weight.
In one embodiment, the pearlescent flakes are selected from: one or more of K8850 white pearl powder, K8825 blue pearl powder and K8805 light yellow pearl powder.
In one embodiment, the pigment is selected from: one or more than two of carbon black, titanium dioxide, iron oxide yellow and synthetic pigment.
In one embodiment, the resin is one or two of unsaturated polyester resin and acrylic resin.
In one embodiment, the curing agent is selected from: one or more of azodiisobutyronitrile, methyl ethyl ketone peroxide, cyclohexanone peroxide, tert-butyl hydroperoxide and tert-butyl peroxydiethylhexanoate.
In one embodiment, the accelerator is selected from: any one of organic salts of manganese metal and cobalt isooctanoate.
In one embodiment, the silane coupling agent is KH 570.
In one embodiment, the quartz stone permeable sand has a mesh number of 70-120, and the glass has a mesh number of 70-120; the light transmittance of the quartz stone permeable sand and the glass is more than 60 percent. The higher the light transmittance of the quartz stone sand and the glass is, the better the whole pearly luster effect of the obtained product is.
In one embodiment, the mesh number of the aluminum hydroxide is 380-420, the purity of the aluminum hydroxide is more than or equal to 99.5%, and Fe2O3And Na2The mass fraction of O is less than 0.5 percent. The aluminum hydroxide has high light transmittance, and can form better pearl grains by matching with pearl powder.
The invention also provides a preparation method of the whole-body pearly-luster artificial stone, which comprises the following steps:
s1, uniformly mixing the pearl powder, the pigment, the resin, the accelerator, the curing agent and the silane coupling agent to obtain mixed resin;
and S2, adding the rest raw materials into the mixed resin, uniformly mixing, pressing in vacuum, heating for curing, fixing the thickness, and polishing to obtain the full-body pearly-luster artificial stone.
In one embodiment, the step S1 specifically includes: mixing pearl powder, pigment, resin, an accelerator, a curing agent and a silane coupling agent, and stirring for 10-15 min to obtain mixed resin;
the step S2 specifically includes: adding the rest raw materials into the mixed resin, stirring for 10-40 min to obtain artificial stone pug, pouring the artificial stone pug into a pressing mold, installing a vacuum vibration press, setting the pressure to be 3-5 MPa, pressing for 0.5-2 min in vacuum to obtain a plate, placing the plate at 70-90 ℃, curing at constant temperature for 3-5 h, fixing the thickness, and polishing to obtain the whole-body pearly-luster artificial stone.
Compared with the prior art, the invention has the following beneficial effects:
according to the whole-body pearly-luster artificial stone, aggregates and powder are replaced by quartz, glass and aluminum hydroxide with high light transmittance in a raw material formula, the fine-particle light-transmitting material is matched with resin with pearly-luster powder, the pearly-luster powder is small in particle, smooth in surface and high in oil absorption value, the bonding strength of the pearly-luster powder and the resin can be improved by adding the silane coupling agent, and the product can be provided with continuous pearly-luster grains by physical stirring during preparation; compared with the prior common acrylic pearly-lustre plate consisting of a three-layer structure of a base material, a pearly-lustre layer and organic glass, the full-body pearly-lustre artificial stone has higher light transmission, surface hardness and wear resistance, stronger color expression, more three-dimensional and transparent textures and more atmospheric and gorgeous appearance.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the preferred embodiments. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
In the following examples, the light transmittance of the quartz permeable sand was 70%, and the light transmittance of the glass particles was 70%. The purity of the aluminum hydroxide was 99.9%.
Example 1
The full-body pearly-luster artificial stone is prepared from the following raw materials in parts by weight:
0.2 part of K8850 white pearl powder, 0.5 part of titanium dioxide, 15 parts of unsaturated polyester resin, 1.5 parts of tert-butyl peroxydiethylhexanoate curing agent, 1.5 parts of KH570 silane coupling agent, 48.3 parts of quartz sand with 70-120 meshes and 33 parts of aluminum hydroxide with 400 meshes.
The full-body pearly-luster artificial stone is prepared by the following method:
(1) weighing the raw materials according to the formula, mixing K8850 white pearl powder, titanium dioxide, tert-butyl peroxydiethylhexanoate curing agent, KH570 silane coupling agent and unsaturated polyester resin, and stirring for 10min to obtain mixed resin;
(2) adding the mixed resin and quartz permeable sand into a mixer, stirring for 30min, adding aluminum hydroxide, and continuously stirring for 10min to obtain artificial stone pug;
(3) paving kraft paper for preventing bonding in a groove of a pressing mould, uniformly distributing artificial stone pug in the groove, flattening the surface, covering a layer of kraft paper, installing a vacuum vibration press on the mould distributed with the artificial stone pug, wherein the pressure is 4MPa, and performing vacuum vibration pressing for 1min to obtain a plate;
(4) and (3) demolding, transferring the plate into an oven for curing, standing at the constant temperature of 80 ℃ for 4 hours, and after curing, performing thickness setting and polishing to obtain the high-strength high-toughness high-strength high-toughness high.
Example 2
The full-body pearly-luster artificial stone is prepared from the following raw materials in parts by weight:
0.5 part of K8825 blue pearl powder, 0.1 part of iron yellow, 17 parts of unsaturated polyester resin, 1.7 parts of tert-butyl peroxydiethylhexanoate curing agent, 1.7 parts of KH570 silane coupling agent, 47 parts of 70-120 mesh glass particles and 32 parts of 400-mesh aluminum hydroxide.
The full-body pearly-luster artificial stone is prepared by the following method:
(1) weighing the raw materials according to the formula, mixing K8825 blue pearl powder, iron yellow, tert-butyl peroxydiethylhexanoate curing agent, silane coupling agent KH570 and unsaturated polyester resin, and stirring for 10min to obtain mixed resin;
(2) adding the mixed resin and the glass particles into a mixer, stirring for 30min, adding aluminum hydroxide, and continuously stirring for 10min to obtain artificial stone pug;
(3) paving kraft paper for preventing bonding in a groove of a pressing mould, uniformly distributing artificial stone pug in the groove, flattening the surface, covering a layer of kraft paper, installing a vacuum vibration press on the mould distributed with the artificial stone pug, wherein the pressure is 4MPa, and performing vacuum vibration pressing for 1min to obtain a plate;
(4) and (3) demolding, transferring the plate into an oven for curing, standing at the constant temperature of 80 ℃ for 4 hours, and after curing, performing thickness setting and polishing to obtain the high-strength high-toughness high-strength high-toughness high.
Example 3
The full-body pearly-luster artificial stone is prepared from the following raw materials in parts by weight:
0.3 part of K8805 light yellow pearl powder, 0.1 part of titanium dioxide, 34.7 parts of polymethyl methacrylate (namely acrylic resin) and monomers thereof, 0.3 part of azobisisobutyronitrile curing agent, 0.3 part of silane coupling agent KH570 and 64.3 parts of 400-mesh aluminum hydroxide powder.
The full-body pearly-luster artificial stone is prepared by the following method:
(1) weighing the raw materials according to the formula, mixing K8805 faint yellow pearl powder, titanium dioxide, azodiisobutyronitrile curing agent, silane coupling agent KH570, polymethyl methacrylate and monomers thereof, stirring for 2 hours to fully dissolve the materials, standing overnight to discharge air bubbles to obtain mixed resin;
(2) adding the mixed resin and aluminum hydroxide into a vacuum mixer, controlling the vacuum degree to be 0.9-1 MPa, stirring for 20min, and adding to obtain artificial stone pug;
(3) paving kraft paper for preventing bonding in a groove of a pressing mould, uniformly distributing artificial stone pug in the groove, flattening the surface, covering a layer of kraft paper, installing a vacuum vibration press on the mould distributed with the artificial stone pug, wherein the pressure is 4MPa, and performing vacuum vibration pressing for 1min to obtain a plate;
(4) and (3) demolding, transferring the plate into an oven for curing, standing at the constant temperature of 50 ℃ for 3h, and after curing, performing thickness setting and polishing to obtain the high-strength high-toughness high-strength high-toughness high.
Comparative example 1
An artificial stone is prepared from the following raw materials in parts by weight:
0.3 part of K8805 light yellow pearl powder, 0.1 part of titanium dioxide, 34.7 parts of polymethyl methacrylate and monomers thereof, 0.3 part of azodiisobutyronitrile curing agent, 0.3 part of silane coupling agent KH570 and 64.3 parts of 120-mesh quartz powder.
The artificial stone is prepared by the following method:
(1) weighing the raw materials according to the formula, mixing K8805 light yellow pearl powder, 0.1 part of titanium dioxide, azodiisobutyronitrile curing agent, KH570 as a silane coupling agent, polymethyl methacrylate and monomers thereof, stirring for 2 hours to fully dissolve the raw materials, standing overnight to remove air bubbles to obtain mixed resin;
(2) adding the mixed resin and 120-mesh quartz powder (common quartz powder) into a vacuum mixer, controlling the vacuum degree to be 0.9-1 MPa, stirring for 20min, and adding to obtain artificial stone pug;
(3) paving kraft paper for preventing bonding in a groove of a pressing mould, uniformly distributing artificial stone pug in the groove, flattening the surface, covering a layer of kraft paper, installing a vacuum vibration press on the mould distributed with the artificial stone pug, wherein the pressure is 4MPa, and performing vacuum vibration pressing for 1min to obtain a plate;
(4) and (3) demolding, transferring the plate into an oven for curing, standing at the constant temperature of 50 ℃ for 3h, and after curing, performing thickness setting and polishing to obtain the high-strength high-toughness high-strength high-toughness high.
The artificial stone prepared by the comparative example has poor light transmission, unobvious lines and can not present continuous pearl grains.
Comparative example 2
An artificial stone is prepared from the following raw materials in parts by weight:
0.3 part of K8805 light yellow pearl powder, 0.1 part of titanium dioxide, 34.7 parts of polymethyl methacrylate and monomers thereof, 0.3 part of azodiisobutyronitrile curing agent and 64.6 parts of 400-mesh aluminum hydroxide powder.
The artificial stone of this comparative example was prepared in substantially the same manner as in example 1 except that no silane coupling agent was added in step (1).
The artificial stone plate body prepared by the comparative example has low strength.
Comparative example 3
An artificial stone is prepared from the following raw materials in parts by weight:
0.05 part of K8805 light yellow pearl powder, 0.1 part of titanium dioxide, 34.7 parts of polymethyl methacrylate (namely acrylic resin) and monomers thereof, 0.3 part of azobisisobutyronitrile curing agent, 0.3 part of silane coupling agent KH570 and 64.3 parts of 400-mesh aluminum hydroxide powder.
The artificial stone of this comparative example was prepared in substantially the same manner as in example 1.
The artificial stone prepared by the comparative example can not form continuous pearl grains.
Experimental example 1
The artificial stones of the examples and comparative examples were subjected to the following performance tests:
(1) light transmittance: testing was performed according to DB 43/T1167-2016;
(2) surface hardness: testing according to T/CSBZ 009 and 2019;
(3) wear resistance: testing according to GB/T9966.4;
(4) breaking strength: the test was performed according to T/CSBZ 009 and 2019.
The test results are shown in the following table:
table 1 results of performance testing
As can be seen from the above table, the artificial stone of the embodiment of the invention has continuous grains, and also has the advantages of good light transmittance, strong hardness, good wear resistance, high breaking strength and the like. Compared with the prior art, the transmittance of the artificial stone in the comparative example 1 is obviously reduced, the breaking strength of the artificial stone in the comparative example 2 is lower, and the artificial stone in the comparative example 3 cannot form continuous grains.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The full-body pearly-luster artificial stone is characterized by comprising the following raw materials in parts by weight:
2. the artificial stone with full pearly luster according to claim 1, wherein the weight portion of the quartz stone permeable sand is 30 to 80 portions.
3. The artificial stone according to claim 1, wherein the glass is 30 to 80 parts by weight.
4. The cultured stone according to claim 1, wherein the pearl powder is selected from the group consisting of: one or more of K8850 white pearl powder, K8825 blue pearl powder and K8805 light yellow pearl powder.
5. The cultured stone according to claim 1, wherein the pigment is selected from the group consisting of: one or more than two of carbon black, titanium dioxide, iron oxide yellow and synthetic pigment.
6. The artificial stone according to claim 1, wherein the resin is one or both of unsaturated polyester resin and acryl resin.
7. The cultured stone according to claim 1, wherein the curing agent is selected from the group consisting of: one or more of azodiisobutyronitrile, methyl ethyl ketone peroxide, cyclohexanone peroxide, tert-butyl hydroperoxide and tert-butyl peroxydiethylhexanoate;
the accelerator is selected from: any one of organic salts of manganese series metal and cobalt isooctanoate;
the silane coupling agent is KH 570.
8. The all-body pearl artificial stone according to any one of claims 1 to 7, wherein the mesh number of the quartz stone permeable sand is 70 to 120, and the mesh number of the glass is 70 to 120; the light transmittance of the quartz stone permeable sand and the light transmittance of the glass are both greater than 60%;
the mesh number of the aluminum hydroxide is 380-420, the purity of the aluminum hydroxide is more than or equal to 99.5%, wherein Fe2O3And Na2The mass fraction of O is less than 0.5 percent.
9. A method for producing a full-body pearl artificial stone according to any one of claims 1 to 7, comprising the steps of:
s1, uniformly mixing the pearl powder, the pigment, the resin, the accelerator, the curing agent and the silane coupling agent to obtain mixed resin;
and S2, adding the rest raw materials into the mixed resin, uniformly mixing, pressing in vacuum, heating for curing, fixing the thickness, and polishing to obtain the full-body pearly-luster artificial stone.
10. The method according to claim 9, wherein the step S1 specifically comprises: mixing pearl powder, pigment, resin, an accelerator, a curing agent and a silane coupling agent, and stirring for 10-15 min to obtain mixed resin;
the step S2 specifically includes: adding the rest raw materials into the mixed resin, stirring for 10-40 min to obtain artificial stone pug, pouring the artificial stone pug into a pressing mold, installing a vacuum vibration press, setting the pressure to be 3-5 MPa, pressing for 0.5-2 min in vacuum to obtain a plate, placing the plate at 50-90 ℃, curing at constant temperature for 3-5 h, fixing the thickness, and polishing to obtain the whole-body pearly-luster artificial stone.
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