CN110744882A - Preparation method of asphalt-based waterproof coiled material - Google Patents
Preparation method of asphalt-based waterproof coiled material Download PDFInfo
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- CN110744882A CN110744882A CN201910940759.0A CN201910940759A CN110744882A CN 110744882 A CN110744882 A CN 110744882A CN 201910940759 A CN201910940759 A CN 201910940759A CN 110744882 A CN110744882 A CN 110744882A
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000004568 cement Substances 0.000 claims abstract description 29
- 235000019353 potassium silicate Nutrition 0.000 claims abstract description 29
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000004433 Thermoplastic polyurethane Substances 0.000 claims abstract description 18
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- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 abstract description 2
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 abstract description 2
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- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Inorganic materials [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 6
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 5
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- 230000000694 effects Effects 0.000 description 5
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- 238000005260 corrosion Methods 0.000 description 3
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- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 2
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- 244000025254 Cannabis sativa Species 0.000 description 1
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- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 1
- 229910014472 Ca—O Inorganic materials 0.000 description 1
- 240000000491 Corchorus aestuans Species 0.000 description 1
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- 235000010862 Corchorus capsularis Nutrition 0.000 description 1
- 229910019092 Mg-O Inorganic materials 0.000 description 1
- 229910019395 Mg—O Inorganic materials 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 229910018557 Si O Inorganic materials 0.000 description 1
- 229910006016 Si6O18 Inorganic materials 0.000 description 1
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
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- 229910003475 inorganic filler Inorganic materials 0.000 description 1
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- 239000010687 lubricating oil Substances 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
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- 238000012360 testing method Methods 0.000 description 1
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Classifications
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- 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
- B32B11/00—Layered products comprising a layer of bituminous or tarry substances
- B32B11/04—Layered products comprising a layer of bituminous or tarry substances comprising such bituminous or tarry substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B11/046—Layered products comprising a layer of bituminous or tarry substances comprising such bituminous or tarry substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- 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
- B32B11/00—Layered products comprising a layer of bituminous or tarry substances
- B32B11/10—Layered products comprising a layer of bituminous or tarry substances next to a fibrous or filamentary layer
-
- 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
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- 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
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- 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
- B32B7/08—Interconnection of layers by mechanical means
-
- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/24—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing alkyl, ammonium or metal silicates; containing silica sols
- C04B28/26—Silicates of the alkali metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/08—Damp-proof or other insulating layers; Drainage arrangements or devices ; Bridge deck surfacings
- E01D19/083—Waterproofing of bridge decks; Other insulations for bridges, e.g. thermal ; Bridge deck surfacings
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D5/00—Roof covering by making use of flexible material, e.g. supplied in roll form
- E04D5/10—Roof covering by making use of flexible material, e.g. supplied in roll form by making use of compounded or laminated materials, e.g. metal foils or plastic films coated with bitumen
-
- 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
- B32B2419/00—Buildings or parts thereof
-
- 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
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Architecture (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Electromagnetism (AREA)
- Inorganic Chemistry (AREA)
- Hydrology & Water Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to a preparation method of an asphalt-based waterproof coiled material, and belongs to the technical field of waterproof coiled materials. The invention takes slag as raw material, water glass as alkali excitant and carbon fiber cloth as reinforcing material, and is compounded with cement to prepare inorganic cementing material as filler; preparing an asphalt-based waterproof coiled material by using thermoplastic polyurethane modified EVA resin and asphalt as raw materials; the carbon fiber filaments have good high-temperature mechanical properties under the anaerobic condition, and the melting point can reach about 4000 ℃; the alkaline excitant can dissociate the slag vitreous body structure and rearrange to generate hydrated calcium silicate gel and hydrated calcium aluminate, so that the prepared asphalt-based waterproof coiled material has good high-temperature resistance; the EVA resin has permanent flexibility, better acid and alkali resistance, ultraviolet aging resistance and good adhesion, the thermoplastic polyurethane modifies the EVA resin, so that the modified EVA resin has good waterproof performance, and the prepared asphalt-based waterproof roll has good aging resistance and waterproof performance.
Description
Technical Field
The invention relates to a preparation method of an asphalt-based waterproof coiled material, and belongs to the technical field of waterproof coiled materials.
Background
The waterproof material is used as an indispensable important part of a building or a bridge, can prevent rainwater, domestic water, underground water and moisture from corroding building materials, and avoids the reduction of the structural strength of the building and the shortening of the service life. Through the development of many years, the variety quantity and various performances of the domestic and foreign waterproof materials are greatly improved. The waterproof material can be classified into inorganic waterproof material and organic waterproof material according to different materials, that is, rigid waterproof material and flexible waterproof material, while the organic waterproof material has the best waterproof effect, and the organic waterproof material occupied in the waterproof field can be roughly classified into asphalt-based waterproof coiled material, high polymer waterproof coiled material, waterproof paint and the like.
As a common traditional waterproof coiled material, the base of the asphalt-based waterproof coiled material is a strip sheet-shaped waterproof coiled material which is prepared by compounding one or more of raw paper, fiber felt, fiber cloth, plastic films or textiles and the like, using petroleum asphalt or polymer modified asphalt as a soaking material and finally soaking the base with the soaking material. In the waterproof materials in China, the asphalt-based waterproof coiled material has low cost and mature processing technology, occupies a large part of market share, but is gradually replaced by other high-performance waterproof coiled materials at present. According to the difference of asphalt, the asphalt-based waterproof coiled material can be divided into an asphalt waterproof coiled material and a polymer modified asphalt waterproof coiled material.
The asphalt waterproof coiled material is also called asphalt felt, and is flexible sheet waterproof coiled material prepared by filling inorganic fillers such as talcum powder, slate powder and calcium powder into asphalt and dip-coating or rolling the asphalt and a tire base. The asphalt material can be shale asphalt, coal tar asphalt, petroleum asphalt, etc., the base material includes fiber felt, base paper, fiber fabric, asbestos cloth, hemp cloth, plastic film, metal foil, etc., and the surface antisticking measure can be spreading powder, sheet and granular mineral material or coating with polymer film, metal film, etc. The asphalt waterproof coiled material which is initially developed is asphalt oil paper and asphalt paper base waterproof coiled material, the low temperature resistance, the high temperature resistance and the aging resistance are poor, even if scientific research technicians modify the performance of asphalt and develop asphalt waterproof coiled materials with different bases, the performance still cannot meet the use requirements of special occasions. Therefore, the asphalt waterproof coiled material with low cost needs to be replaced frequently due to short service life, and is generally not used except for occasions with low requirements.
At present, polymer modified asphalt is frequently applied to prepare the asphalt waterproof coiled material, and the high temperature resistance and the low temperature resistance are well improved.
The high polymer modified asphalt waterproof coiled material is a flexible waterproof material which is sheet-shaped and can be curled. The base of the invented tyre is mainly made of glass fibre felt, polyester felt, jute cloth, polyethylene film and polyester non-woven fabric, and the impregnating material is made up by using high-molecular polymer modified asphalt and anti-sticking powder, and generally using powdered, flaky and granular mineral material or synthetic high-molecular film as covering material.
Because petroleum asphalt is easy to flow at high temperature and becomes brittle at low temperature, the actual application effect is not good, and in order to improve the characteristic of poor high and low temperature resistance of the asphalt, a polymer with high molecular weight is added to modify the asphalt. The asphalt waterproof coiled material modified by the high polymer has the advantages of good high-low temperature resistance, high tensile strength and high elongation, and also has good hydrophobicity, corrosion resistance and cohesiveness, so that the waterproofness of the asphalt waterproof coiled material is correspondingly improved. The modified materials of the polymer modified asphalt waterproof coiled material are various, and the performances and the application occasions of the obtained waterproof coiled material are different due to different modified materials. According to different types of polymer materials for modification, the high polymer modified asphalt waterproof coiled material can be divided into three categories, namely a rubber modified asphalt waterproof coiled material, a plastic modified asphalt waterproof coiled material and a rubber and plastic blended modified asphalt waterproof coiled material. As the asphalt modifier, the polymer has the following conditions: the compatibility of the polymer for modification and asphalt is good, so that the modified material can be better dispersed in a blend rubber material, and the stability of application and performance is improved; the polymer modifier also has the necessary functions, can improve the disadvantages that the asphalt becomes brittle and hard at low temperature and flows easily at high temperature, and obviously improves the high and low temperature resistance and the weather resistance; as a performance modifier of the asphalt, the high polymer can not remarkably increase the stock coverage of the asphalt and reduce the processability of the asphalt, namely the high polymer with too high molecular weight and difficult processing can not be selected; at present, the rubber selected by people as the modified asphalt waterproof coiled material mainly comprises SBS, Styrene Butadiene Rubber (SBR), reclaimed rubber, waste rubber powder and the like, the plastic for modification mainly comprises APP, the rubber-plastic blend mainly comprises SBS, APP and the like, and the rubber-plastic blend also comprises self-adhesive polymer, aluminum-plastic rubber and the like.
In order to improve the processability and mechanical property of the high polymer modified asphalt waterproof coiled material and reduce the cost. The waterproof coiled material is added with fluxing agent materials which mainly comprise aromatic oil, lubricating oil, three-line oil and the like, the inorganic filling materials can improve the wear resistance and weather resistance of the waterproof coiled material, are beneficial to processing and forming, can adjust the brix and hardness, are indispensable addition materials, and mainly can greatly reduce the cost, and the filling materials mainly comprise talcum powder, talc magnesite, inkstone powder, slate powder, dolomite powder, coal ash and the like. Stone powder is most commonly used as a filler. The filler should meet the requirement that the density is as close as possible to the asphalt; the particle size is appropriate; the smaller the hydrophilic coefficient, the better. The facing material for preventing the waterproof roll from being bonded in the production, transportation and storage processes is generally PE film, mineral granules or aluminum foil and the like.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: aiming at the problem of poor aging resistance of the traditional asphalt waterproof coiled material, the preparation method of the asphalt-based waterproof coiled material is provided.
In order to solve the technical problems, the invention adopts the technical scheme that:
(1) taking slag, water glass, cement, carbon fiber cloth and deionized water, mixing the slag, the water glass, the cement and the carbon fiber cloth, placing the mixture in a mortar mixer for stirring treatment to obtain a mixed material, adding the deionized water into the mixed material, stirring for 10-15 min at the stirring speed of 100-200 r/min to obtain a mixed slurry, injecting the mixed slurry into a steel mould, removing the mould after constant temperature and humidity maintenance to obtain a semi-finished product, crushing and grinding the semi-finished product to obtain a filler;
(2) mixing thermoplastic polyurethane and EVA emulsion, and stirring at constant temperature to obtain modified emulsion;
(3) taking asphalt, modified emulsion and filler, carrying out melting treatment on the asphalt to obtain a melt, adding the filler into the melt, carrying out oil bath stirring treatment to obtain a base material A, carrying out shearing treatment on the base material A to obtain a base material B, adding the modified emulsion into the base material B, and carrying out stirring treatment to obtain a precursor material;
(4) coating the precursor material on the upper surface and the lower surface of a non-woven fabric base course to obtain an asphalt layer, attaching a PE film on the asphalt layer, extruding and shaping by using a forming roller with tooth marks to obtain a blank, and cooling, metering and rolling the blank to obtain the asphalt-based waterproof coiled material.
The proportion of the slag, the water glass, the cement, the carbon fiber cloth and the deionized water in the step (1) is respectively as follows: weighing 20-30 parts of slag, 1-5 parts of water glass, 10-15 parts of cement, 1-10 parts of carbon fiber cloth and 20-40 parts of deionized water in parts by weight.
The stirring treatment step in the step (1) is as follows: mixing the slag, the water glass, the cement and the carbon fiber cloth, placing the mixture into a mortar mixer, and stirring the mixture for 1 to 3min at a stirring speed of 400 to 500 r/min.
The constant temperature and humidity curing step in the step (1) is as follows: and (3) injecting the mixed slurry into a steel die with the thickness of 40mm multiplied by 160mm, and maintaining the steel die at a constant temperature and humidity for 20-24 hours at the temperature of 18-22 ℃ and the relative humidity of 90-98%.
The constant-temperature stirring treatment step in the step (2) is as follows: mixing the thermoplastic polyurethane and the EVA emulsion according to the mass ratio of 1: 1, and stirring for 15-20 min at the temperature of 130-140 ℃ and the stirring speed of 400-500 r/min.
The asphalt, the modified emulsion and the filler in the step (3) are respectively in the following proportions: respectively weighing 40-60 parts of asphalt, 20-30 parts of modified emulsion and 20-30 parts of filler according to parts by weight.
The melting treatment step in the step (3) is as follows: heating the asphalt at 170-200 ℃ to a molten state.
The oil bath stirring treatment step in the step (3) is as follows: adding a filler into the melt, and stirring for 30-40 min in an oil bath at the temperature of 210-220 ℃ and the stirring speed of 500-600 r/min.
The shearing treatment step in the step (3) is as follows: shearing the base material A for 40-50 min at the rotating speed of 3000-4000 r/min.
The stirring treatment step in the step (3) is as follows: adding the modified emulsion into the base material B, and stirring for 1-2 hours at a stirring speed of 900-1000 r/min.
Compared with other methods, the method has the beneficial technical effects that:
(1) the invention takes slag as raw material, water glass as alkali excitant and carbon fiber cloth as reinforcing material, and is compounded with cement to prepare inorganic cementing material as filler; preparing an asphalt-based waterproof coiled material by using thermoplastic polyurethane modified EVA resin and asphalt as raw materials; the carbon fiber cloth has the characteristics of light weight, high strength, corrosion resistance, aging resistance, good durability and the like, the carbon fiber wires have good high-temperature mechanical properties under the anaerobic condition, and the melting point can reach about 4000 ℃; the main structural unit of the slag vitreous body is the silicon-oxygen tetrahedron [ SiO ]4]4-And alundum tetrahedron [ AlO4]5-Alkali activators capable of rendering slag vitreous [ SiO ]4]4-、[AlO4]5-The structure is dissociated and rearranged to generate hydrated calcium silicate (C-S-H) gel and hydrated calcium aluminate, and the prepared inorganic cementing material has good high-temperature resistance, so that the prepared asphalt-based waterproof coiled material has good high-temperature resistance; the EVA resin has permanent flexibility, better acid and alkali resistance, ultraviolet aging resistance and good adhesion, and the thermoplastic polyurethane modifies the EVA resin, so that the modified EVA resin has good waterproof performance, and the prepared asphalt-based waterproof roll has good aging resistance and waterproof performance;
(2) in the silicate-based glass body of the present invention, [ SiO ] is present4]4-、[Si2O7]6-、[Si6O18]12-A plurality of anionic groups, which are temporally combined; as the temperature decreases, the polymerization process becomes dominant and forms a mixture of unequal numbers of SiO4]4-The tetrahedron is a chain or net structure formed by polymerization in different connection modes; the slag vitreous body is [ SiO ]4]4-Tetrahedron is the basic structural unit, [ SiO ]4]4-Are connected into a space network by 'bridge oxygen', and the four coordinated Al3+With [ AlO ]4]5-The form of tetrahedron participates in networking; ca2+、Mg2+And hexa-coordinated Al3+The plasma is outside the network chain and distributed in the network structure in a certain coordination state; the slag consists of a plurality of continuous calcium-rich phases and a plurality of discontinuous silicon-rich phases, and the silicon-rich phases are tightly wrapped by the calcium-rich phases to form the main structural characteristics of the slag vitreous body; the Ca-O, Mg-O bond in the calcium-rich phase is much weaker than the Si-O bond in the silicon-rich phase, and the thermodynamic instability is higher; therefore, the slag is a phase-separated vitreous body, the calcium-rich phase is a root source of the slag vitreous body with higher hydraulic activity, and the slag excited by alkali has high activity and excellent high-temperature resistance in application;
(3) the thermoplastic polyurethane has the advantages in the aspect of high and low temperature resistance, the high-temperature shear strength of the thermoplastic polyurethane is still higher than 12MPa, and the thermoplastic polyurethane has the characteristics of better water resistance, temperature resistance, creep resistance, corrosion resistance and the like.
Detailed Description
Respectively weighing 20-30 parts of slag, 1-5 parts of water glass, 10-15 parts of cement, 1-10 parts of carbon fiber cloth and 20-40 parts of deionized water according to parts by weight, mixing the slag, the water glass, the cement and the carbon fiber cloth in a mortar mixer, stirring for 1-3 min at the stirring speed of 400-500 r/min to obtain a mixed material, adding the deionized water into the mixed material, stirring for 10-15 min at the stirring speed of 100-200 r/min to obtain a mixed slurry, injecting the mixed slurry into a 40mm x 160mm steel die, placing the steel die in a constant temperature and humidity curing at the temperature of 18-22 ℃ and the relative humidity of 90-98% for 20-24 h, then removing the die to obtain a semi-finished product, crushing and grinding the semi-finished product to obtain a filler; mixing thermoplastic polyurethane and EVA emulsion according to the mass ratio of 1: 1, and stirring for 15-20 min at the temperature of 130-140 ℃ and the stirring speed of 400-500 r/min to obtain modified emulsion; respectively weighing 40-60 parts of asphalt, 20-30 parts of modified emulsion and 20-30 parts of filler by weight, heating the asphalt at 170-200 ℃ to a molten state to obtain a melt, adding the filler into the melt, carrying out oil bath stirring at 210-220 ℃ and a stirring speed of 500-600 r/min for 30-40 min to obtain a base material A, shearing the base material A at a rotating speed of 3000-4000 r/min for 40-50 min to obtain a base material B, adding the modified emulsion into the base material B, and stirring at a stirring speed of 900-1000 r/min for 1-2 h to obtain a precursor material; coating the precursor material on the upper surface and the lower surface of a non-woven fabric base course to obtain an asphalt layer, attaching a PE film on the asphalt layer, extruding and shaping by using a forming roller with tooth marks to obtain a blank, and cooling, metering and rolling the blank to obtain the asphalt-based waterproof coiled material.
Example 1
Taking slag, water glass, cement, carbon fiber cloth and deionized water, mixing the slag, the water glass, the cement and the carbon fiber cloth, placing the mixture in a mortar mixer for stirring treatment to obtain a mixed material, adding the deionized water into the mixed material, stirring for 10min at the stirring speed of 100r/min to obtain a mixed slurry, injecting the mixed slurry into a steel mould, maintaining at constant temperature and humidity, then removing the mould to obtain a semi-finished product, crushing and grinding the semi-finished product to obtain a filler; mixing thermoplastic polyurethane and EVA emulsion, and stirring at constant temperature to obtain modified emulsion; taking asphalt, modified emulsion and filler, carrying out melting treatment on the asphalt to obtain a melt, adding the filler into the melt, carrying out oil bath stirring treatment to obtain a base material A, carrying out shearing treatment on the base material A to obtain a base material B, adding the modified emulsion into the base material B, and carrying out stirring treatment to obtain a precursor material; coating the precursor material on the upper surface and the lower surface of a non-woven fabric base course to obtain an asphalt layer, attaching a PE film on the asphalt layer, extruding and shaping by using a forming roller with tooth marks to obtain a blank, and cooling, metering and rolling the blank to obtain the asphalt-based waterproof coiled material. The proportion of slag, water glass, cement, carbon fiber cloth and deionized water is respectively as follows: weighing 20 parts of slag, 1 part of water glass, 10 parts of cement, 1 part of carbon fiber cloth and 20 parts of deionized water according to parts by weight. The stirring treatment steps are as follows: mixing the slag, the water glass, the cement and the carbon fiber cloth, placing the mixture in a mortar mixer, and stirring the mixture for 1min at a stirring speed of 400 r/min. The constant temperature and humidity curing step comprises: the mixed slurry is injected into a steel die with the thickness of 40mm multiplied by 160mm, and the steel die is maintained for 20 hours at the constant temperature and humidity under the temperature of 18 ℃ and the relative humidity of 90 percent. The constant-temperature stirring treatment steps are as follows: mixing the thermoplastic polyurethane and the EVA emulsion according to the mass ratio of 1: 1, and stirring for 15min at the temperature of 130 ℃ and the stirring speed of 400 r/min. The proportion of the asphalt, the modified emulsion and the filler is respectively as follows: respectively weighing 40 parts of asphalt, 20 parts of modified emulsion and 20 parts of filler according to parts by weight. The melting treatment steps are as follows: the asphalt is heated to a molten state at a temperature of 170 ℃. The oil bath stirring treatment steps are as follows: adding filler into the melt, and stirring in an oil bath for 30min at the temperature of 210 ℃ and the stirring speed of 500 r/min. The shearing treatment steps are as follows: shearing the base material A for 40min at the rotating speed of 3000 r/min. The stirring treatment steps are as follows: adding the modified emulsion into the base material B, and stirring for 1h at the stirring speed of 900 r/min.
Example 2
Taking slag, water glass, cement, carbon fiber cloth and deionized water, mixing the slag, the water glass, the cement and the carbon fiber cloth, placing the mixture in a mortar mixer for stirring treatment to obtain a mixed material, adding the deionized water into the mixed material, stirring for 12min at the stirring speed of 150r/min to obtain a mixed slurry, injecting the mixed slurry into a steel mould, maintaining at constant temperature and humidity, then removing the mould to obtain a semi-finished product, crushing and grinding the semi-finished product to obtain a filler; mixing thermoplastic polyurethane and EVA emulsion, and stirring at constant temperature to obtain modified emulsion; taking asphalt, modified emulsion and filler, carrying out melting treatment on the asphalt to obtain a melt, adding the filler into the melt, carrying out oil bath stirring treatment to obtain a base material A, carrying out shearing treatment on the base material A to obtain a base material B, adding the modified emulsion into the base material B, and carrying out stirring treatment to obtain a precursor material; coating the precursor material on the upper surface and the lower surface of a non-woven fabric base course to obtain an asphalt layer, attaching a PE film on the asphalt layer, extruding and shaping by using a forming roller with tooth marks to obtain a blank, and cooling, metering and rolling the blank to obtain the asphalt-based waterproof coiled material. The proportion of slag, water glass, cement, carbon fiber cloth and deionized water is respectively as follows: respectively weighing 25 parts of slag, 3 parts of water glass, 12 parts of cement, 5 parts of carbon fiber cloth and 30 parts of deionized water according to parts by weight. The stirring treatment steps are as follows: mixing the slag, the water glass, the cement and the carbon fiber cloth, placing the mixture in a mortar mixer, and stirring for 2min at a stirring speed of 450 r/min. The constant temperature and humidity curing step comprises: the mixed slurry is injected into a steel die with the thickness of 40mm multiplied by 160mm, and the steel die is maintained for 22 hours at the constant temperature and humidity under the temperature of 20 ℃ and the relative humidity of 94 percent. The constant-temperature stirring treatment steps are as follows: mixing the thermoplastic polyurethane and the EVA emulsion according to the mass ratio of 1: 1, and stirring for 18min at the temperature of 135 ℃ and the stirring speed of 450 r/min. The proportion of the asphalt, the modified emulsion and the filler is respectively as follows: respectively weighing 50 parts of asphalt, 25 parts of modified emulsion and 25 parts of filler according to parts by weight. The melting treatment steps are as follows: the asphalt was heated to a molten state at a temperature of 185 ℃. The oil bath stirring treatment steps are as follows: the filler was added to the melt and stirred in an oil bath for 35min at a temperature of 215 ℃ and a stirring speed of 550 r/min. The shearing treatment steps are as follows: shearing the base material A for 45min at the rotating speed of 3500 r/min. The stirring treatment steps are as follows: adding the modified emulsion into the base material B, and stirring for 1h at the stirring speed of 950 r/min.
Example 3
Taking slag, water glass, cement, carbon fiber cloth and deionized water, mixing the slag, the water glass, the cement and the carbon fiber cloth, placing the mixture in a mortar mixer for stirring treatment to obtain a mixed material, adding the deionized water into the mixed material, stirring for 15min at the stirring speed of 200r/min to obtain a mixed slurry, injecting the mixed slurry into a steel mould, maintaining at constant temperature and humidity, then removing the mould to obtain a semi-finished product, crushing and grinding the semi-finished product to obtain a filler; mixing thermoplastic polyurethane and EVA emulsion, and stirring at constant temperature to obtain modified emulsion; taking asphalt, modified emulsion and filler, carrying out melting treatment on the asphalt to obtain a melt, adding the filler into the melt, carrying out oil bath stirring treatment to obtain a base material A, carrying out shearing treatment on the base material A to obtain a base material B, adding the modified emulsion into the base material B, and carrying out stirring treatment to obtain a precursor material; coating the precursor material on the upper surface and the lower surface of a non-woven fabric base course to obtain an asphalt layer, attaching a PE film on the asphalt layer, extruding and shaping by using a forming roller with tooth marks to obtain a blank, and cooling, metering and rolling the blank to obtain the asphalt-based waterproof coiled material. The proportion of slag, water glass, cement, carbon fiber cloth and deionized water is respectively as follows: according to the weight parts, 30 parts of slag, 5 parts of water glass, 15 parts of cement, 10 parts of carbon fiber cloth and 40 parts of deionized water are respectively weighed. The stirring treatment steps are as follows: mixing the slag, the water glass, the cement and the carbon fiber cloth, placing the mixture in a mortar mixer, and stirring the mixture for 3min at a stirring speed of 500 r/min. The constant temperature and humidity curing step comprises: and (3) injecting the mixed slurry into a steel die with the thickness of 40mm multiplied by 160mm, and maintaining the steel die at the constant temperature and humidity for 24 hours at the temperature of 22 ℃ and the relative humidity of 98%. The constant-temperature stirring treatment steps are as follows: mixing the thermoplastic polyurethane and the EVA emulsion according to the mass ratio of 1: 1, and stirring for 20min at the temperature of 140 ℃ and the stirring speed of 500 r/min. The proportion of the asphalt, the modified emulsion and the filler is respectively as follows: respectively weighing 60 parts of asphalt, 30 parts of modified emulsion and 30 parts of filler according to parts by weight. The melting treatment steps are as follows: the asphalt is heated to a molten state at a temperature of 200 ℃. The oil bath stirring treatment steps are as follows: adding filler into the melt, and stirring in an oil bath for 40min at the temperature of 220 ℃ and the stirring speed of 600 r/min. The shearing treatment steps are as follows: shearing the base material A for 50min at the rotating speed of 4000 r/min. The stirring treatment steps are as follows: adding the modified emulsion into the base material B, and stirring for 2 hours at the stirring speed of 1000 r/min.
Comparative example: a waterproof roll manufactured by Dongguan company.
The waterproof rolls prepared in the examples and the comparative examples were tested, specifically as follows:
tensile strength: according to GB12953-2003, the drawing speed is 250mm/min at normal temperature.
Tear strength: according to GB/T529-1999, normal temperature, stretching speed (500 +/-50) mm/min.
Hot air aging resistance: heat aging conditions, as determined in GB 18244: the dumbbell-shaped sample strips are vertically hung on a turntable which rotates ceaselessly, hot air is used for 168 hours at 80 ℃, and the dumbbell-shaped sample strips are kept stand at normal temperature after being aged for 24 hours.
The specific test results are shown in table 1.
Table 1 comparative table of property characterization
| Detecting items | Example 1 | Example 2 | Example 3 | Comparative example |
| Tensile strength/MPa | 14 | 13 | 12 | 6 |
| Tear Strength/MPa | 30 | 29 | 28 | 15 |
| Retention of performance/%) | 90 | 91 | 92 | 50 |
As can be seen from Table 1, the waterproof roll prepared by the invention has good mechanical properties and aging resistance.
Claims (10)
1. A preparation method of an asphalt-based waterproof coiled material is characterized by comprising the following specific preparation steps:
(1) taking slag, water glass, cement, carbon fiber cloth and deionized water, mixing the slag, the water glass, the cement and the carbon fiber cloth, placing the mixture in a mortar mixer for stirring treatment to obtain a mixed material, adding the deionized water into the mixed material, stirring for 10-15 min at the stirring speed of 100-200 r/min to obtain a mixed slurry, injecting the mixed slurry into a steel mould, removing the mould after constant temperature and humidity maintenance to obtain a semi-finished product, crushing and grinding the semi-finished product to obtain a filler;
(2) mixing thermoplastic polyurethane and EVA emulsion, and stirring at constant temperature to obtain modified emulsion;
(3) taking asphalt, modified emulsion and filler, carrying out melting treatment on the asphalt to obtain a melt, adding the filler into the melt, carrying out oil bath stirring treatment to obtain a base material A, carrying out shearing treatment on the base material A to obtain a base material B, adding the modified emulsion into the base material B, and carrying out stirring treatment to obtain a precursor material;
(4) coating the precursor material on the upper surface and the lower surface of a non-woven fabric base course to obtain an asphalt layer, attaching a PE film on the asphalt layer, extruding and shaping by using a forming roller with tooth marks to obtain a blank, and cooling, metering and rolling the blank to obtain the asphalt-based waterproof coiled material.
2. The method for preparing asphalt-based waterproof roll according to claim 1, characterized in that: the proportion of the slag, the water glass, the cement, the carbon fiber cloth and the deionized water in the step (1) is respectively as follows: weighing 20-30 parts of slag, 1-5 parts of water glass, 10-15 parts of cement, 1-10 parts of carbon fiber cloth and 20-40 parts of deionized water in parts by weight.
3. The method for preparing asphalt-based waterproof roll according to claim 1, characterized in that: the stirring treatment step in the step (1) is as follows: mixing the slag, the water glass, the cement and the carbon fiber cloth, placing the mixture into a mortar mixer, and stirring the mixture for 1 to 3min at a stirring speed of 400 to 500 r/min.
4. The method for preparing asphalt-based waterproof roll according to claim 1, characterized in that: the constant temperature and humidity curing step in the step (1) is as follows: and (3) injecting the mixed slurry into a steel die with the thickness of 40mm multiplied by 160mm, and maintaining the steel die at a constant temperature and humidity for 20-24 hours at the temperature of 18-22 ℃ and the relative humidity of 90-98%.
5. The method for preparing asphalt-based waterproof roll according to claim 1, characterized in that: the constant-temperature stirring treatment step in the step (2) is as follows: mixing the thermoplastic polyurethane and the EVA emulsion according to the mass ratio of 1: 1, and stirring for 15-20 min at the temperature of 130-140 ℃ and the stirring speed of 400-500 r/min.
6. The method for preparing asphalt-based waterproof roll according to claim 1, characterized in that: the asphalt, the modified emulsion and the filler in the step (3) are respectively in the following proportions: respectively weighing 40-60 parts of asphalt, 20-30 parts of modified emulsion and 20-30 parts of filler according to parts by weight.
7. The method for preparing asphalt-based waterproof roll according to claim 1, characterized in that: the melting treatment step in the step (3) is as follows: heating the asphalt at 170-200 ℃ to a molten state.
8. The method for preparing asphalt-based waterproof roll according to claim 1, characterized in that: the oil bath stirring treatment step in the step (3) is as follows: adding a filler into the melt, and stirring for 30-40 min in an oil bath at the temperature of 210-220 ℃ and the stirring speed of 500-600 r/min.
9. The method for preparing asphalt-based waterproof roll according to claim 1, characterized in that: the shearing treatment step in the step (3) is as follows: shearing the base material A for 40-50 min at the rotating speed of 3000-4000 r/min.
10. The method for preparing asphalt-based waterproof roll according to claim 1, characterized in that: the stirring treatment step in the step (3) is as follows: adding the modified emulsion into the base material B, and stirring for 1-2 hours at a stirring speed of 900-1000 r/min.
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