CN115466578B - Polypropylene waterproof coiled material and preparation method thereof - Google Patents
Polypropylene waterproof coiled material and preparation method thereof Download PDFInfo
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- CN115466578B CN115466578B CN202210945984.5A CN202210945984A CN115466578B CN 115466578 B CN115466578 B CN 115466578B CN 202210945984 A CN202210945984 A CN 202210945984A CN 115466578 B CN115466578 B CN 115466578B
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- 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
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/21—Paper; Textile fabrics
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- 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
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- C09J153/00—Adhesives based on block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers
- C09J153/02—Vinyl aromatic monomers and conjugated dienes
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- C09J195/00—Adhesives based on bituminous materials, e.g. asphalt, tar, pitch
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- C09J201/00—Adhesives based on unspecified macromolecular compounds
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- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
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- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
- C09J7/38—Pressure-sensitive adhesives [PSA]
- C09J7/381—Pressure-sensitive adhesives [PSA] based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
- C09J7/387—Block-copolymers
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- C09J7/00—Adhesives in the form of films or foils
- C09J7/40—Adhesives in the form of films or foils characterised by release liners
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
- D01F6/46—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polyolefins
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/005—Synthetic yarns or filaments
- D04H3/007—Addition polymers
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- 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
- E04B1/665—Sheets or foils impervious to water and water vapor
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- 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
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2329/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Derivatives of such polymer
- C08J2329/02—Homopolymers or copolymers of unsaturated alcohols
- C08J2329/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
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- 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
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
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- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
- C09J2203/346—Applications of adhesives in processes or use of adhesives in the form of films or foils for building applications e.g. wrap foil
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- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
- C09J2301/124—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present on both sides of the carrier, e.g. double-sided adhesive tape
- C09J2301/1242—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present on both sides of the carrier, e.g. double-sided adhesive tape the opposite adhesive layers being different
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- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
- C09J2301/302—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier the adhesive being pressure-sensitive, i.e. tacky at temperatures inferior to 30°C
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Abstract
The application relates to the field of waterproof building materials, and in particular discloses a polypropylene waterproof roll and a preparation method thereof, wherein the polypropylene waterproof roll sequentially comprises a first isolation layer, a self-adhesive polymer modified asphalt layer, a polypropylene sheet, a pressure-sensitive adhesive layer and a second isolation layer from bottom to top, and the polypropylene sheet comprises the following raw materials: polypropylene, nano silicon nitride, nano bentonite, gamma-glycidol ether oxypropyl trimethoxysilane, tri (2, 4-di-tert-butylphenyl) phosphite and bis (2, 6-tetramethylpiperidinyl) sebacate. The highest longitudinal tensile force, transverse tensile force, longitudinal tearing strength, transverse tearing strength and bursting strength of the polypropylene waterproof roll are 2105N, 2545N, 188N, 278N and 1731N respectively, so that the strength of the polypropylene waterproof roll is improved; and the minimum longitudinal free shrinkage and the minimum transverse free shrinkage are-0.49% and-0.58%, respectively, so that the high-stability composite material has higher stability.
Description
Technical Field
The application relates to the field of waterproof building materials, in particular to a polypropylene waterproof coiled material and a preparation method thereof.
Background
The waterproof coiled material is a waterproof material product prepared by dipping asphalt or polymer waterproof materials on a matrix, has good water resistance and temperature stability, and is mainly applied to building walls, roofs, tunnels, highways and the like so as to resist external rainwater and prevent groundwater leakage.
At present, waterproof coiled materials can be mainly divided into asphalt, modified asphalt and polymer synthesis types, the common polymer synthesis type is polyethylene polypropylene composite waterproof coiled materials, polypropylene is also called polypropylene fiber, and the polypropylene fiber refers to synthetic fiber isotactic polypropylene fiber prepared from propylene which is a byproduct of petroleum refining and has higher waterproof effect.
In the related art, a polyethylene polypropylene composite waterproof coiled material is generally formed by compounding a middle polyethylene sheet and polypropylene non-woven fabrics on two sides, and the obtained waterproof coiled material has low strength.
Disclosure of Invention
The application provides a polypropylene waterproof coiled material and a preparation method thereof in order to improve the strength of the polypropylene waterproof coiled material.
In a first aspect, the application provides a polypropylene waterproof roll, which adopts the following technical scheme:
the polypropylene waterproof coiled material comprises a first isolation layer, a self-adhesive polymer modified asphalt layer, a polypropylene sheet, a pressure-sensitive adhesive layer and a second isolation layer from bottom to top in sequence, wherein the polypropylene sheet comprises the following raw materials in parts by weight: 90-100 parts of polypropylene, 2-3 parts of nano silicon nitride, 4-5 parts of nano bentonite, 0.6-1 part of gamma-glycidol ether oxypropyl trimethoxy silane, 1-3 parts of tri (2, 4-di-tert-butylphenyl) phosphite and 1-3 parts of bis (2, 6-tetramethylpiperidinyl) sebacic acid ester.
The polypropylene sheet material has better performances when 90-100 parts of polypropylene, 2-3 parts of nano silicon nitride, 4-5 parts of nano bentonite, 0.6-1 part of gamma-glycidyl ether oxypropyl trimethoxy silane, 1-3 parts of tri (2, 4-di-tert-butylphenyl) phosphite and 1-3 parts of bis (2, 6-tetramethylpiperidinyl) sebacic acid ester are selected, and has best effects when 95 parts of polypropylene, 2.5 parts of nano silicon nitride, 4.5 parts of nano bentonite, 0.8 part of gamma-glycidyl ether oxypropyl trimethoxy silane, 2 parts of tri (2, 4-di-tert-butylphenyl) phosphite and 2 parts of bis (2, 6-tetramethylpiperidinyl) sebacic acid ester are selected.
By adopting the technical scheme, the polypropylene waterproof coiled material sequentially comprises the first isolation layer, the self-adhesive polymer modified asphalt layer, the polypropylene sheet, the pressure-sensitive adhesive layer and the isolation layer from bottom to top, and in the related art, the polypropylene is generally used as the reinforcing layer. The self-adhesive polymer modified asphalt layer has higher waterproof effect, and has higher tensile force and fracture elongation; the bonding capability of the pressure-sensitive adhesive layer and the polypropylene sheet layer is strong, so that the weather resistance of the waterproof coiled material can be improved, the waterproof coiled material still has flexibility under the low-temperature condition, and the waterproof function cannot be lost. The first isolation layer and the second isolation layer can be closely attached to the polypropylene sheet through the pressure-sensitive adhesive layer, so that the stability of the whole composite structure is guaranteed, the adhesion of the waterproof coiled material in the production and coiling process is prevented, the first isolation layer and the second isolation layer have a certain waterproof effect, and the waterproof effect of the polypropylene waterproof coiled material can be enhanced.
The polypropylene sheet material is made of polypropylene as main raw material, is odorless and nontoxic, is easy to process, and has the characteristics of strong impact strength, flex resistance, corrosion resistance, electrical insulation and the like. The nano silicon nitride can further improve the strength and the wear resistance of the polypropylene sheet. The nanometer bentonite has a certain flame-retardant effect, and the nanometer bentonite can be added to ensure that the polypropylene sheet has a certain flame retardance. The addition of the gamma-glycidol ether oxypropyl trimethoxy silane can improve the dispersion uniformity of all raw materials of the polypropylene sheet. The tri (2, 4-di-tert-butylphenyl) phosphite is added as an antioxidant, so that the high-temperature discoloration of the polypropylene sheet can be prevented, and the service life of the polypropylene sheet can be prolonged. The bis (2, 6-tetramethyl piperidinyl) sebacate is added as a light stabilizer, can shield or absorb ultraviolet energy, can eliminate or slow down the possibility of photochemical reaction, and can prevent or delay the photo-aging process, thereby prolonging the service life of the polypropylene sheet.
As preferable: the pressure-sensitive adhesive layer is formed by coating pressure-sensitive adhesive on the surface of a polypropylene sheet, and comprises the following raw materials in percentage by weight: 65-80% of styrene-isoprene-styrene block copolymer, 10-30% of hydrogenated rosin resin, 5-10% of styrene-butadiene rubber and 0.5-1% of antioxidant 1010.
By adopting the technical scheme, the pressure-sensitive adhesive adopts the styrene-isoprene-styrene segmented copolymer which has the characteristics of low odor, good fluidity, low milk degree and good compatibility with other raw materials. The addition of the hydrogenated rosin resin can keep the non-drying property of the pressure-sensitive adhesive and the surface wetting property of the polypropylene sheet and the isolating film, and improve the stability and the ageing resistance of the polypropylene waterproof coiled material. The styrene-butadiene rubber has higher cohesive strength and elasticity, and can improve the viscosity and wettability of the pressure-sensitive adhesive. The antioxidant 1010 has higher oxidation resistance, can prevent the pressure-sensitive adhesive from aging and changing color, and further improves the stability of the polypropylene waterproof coiled material.
As preferable: the second isolation layer is formed by laminating an isolation film on the surface of the pressure-sensitive adhesive layer, and the isolation film comprises the following raw materials in percentage by weight: 75-85% of polyvinyl alcohol, 3-5% of quartz sand, 1-2% of sodium hexametaphosphate, 2-4% of sodium dodecyl benzene sulfonate and 10-20% of water.
By adopting the technical scheme, the isolating film adopts the polyvinyl alcohol as the main raw material, the polyvinyl alcohol is biodegradable, the environment friendliness is good, the isolating film is suitable for waterproof coiled materials, and the isolating film has higher waterproof performance. The addition of quartz sand improves the water solubility of the isolating film and the wear resistance of the isolating film. Sodium hexametaphosphate is added as a dispersing agent to improve the dispersion uniformity of quartz sand in the raw material of the isolating membrane. The sodium dodecyl benzene sulfonate can play a role in realizing film formation.
As preferable: the self-adhesive polymer modified asphalt layer is formed by pressing self-adhesive polymer modified asphalt on the other surface of the polypropylene sheet; the first isolation layer is formed by laminating an isolation film on the surface of the self-adhesive polymer modified asphalt layer.
As preferable: the polypropylene waterproof coiled material sequentially comprises a first isolation layer, a self-adhesive polymer modified asphalt layer, a polypropylene sheet, a pressure-sensitive adhesive layer, a high-temperature sintered sand layer, a sand fixing agent layer and a second isolation layer from bottom to top; the high-temperature sintered sand layer is formed by spreading high-temperature sintered sand on the surface of the pressure-sensitive adhesive layer; the high-temperature sintered sand is formed by calcining quartz stone ore particles.
By adopting the technical scheme, the high-temperature sintered sand layer and the sand fixing agent layer are added between the pressure-sensitive adhesive layer and the second isolation layer, so that the strength of the polypropylene fiber waterproof coiled material can be improved, and the working procedures of pre-paving and field construction can be reduced are performed. The specific method for preparing the high-temperature sintered sand comprises the following steps: calcining quartz stone ore particles at 800-1000 ℃ for 30-50min, and cooling to obtain the high-temperature sintered sand layer.
As preferable: the sand-fixing agent layer is formed by coating a sand-fixing agent on the surface of the high-temperature sintered sand layer, and comprises the following raw materials in percentage by weight: 20-30% of water glass, 0.1-0.3% of sodium carboxymethyl cellulose, 0.1-0.3% of polyacrylamide, 1.5-1.7% of nano calcium carbonate and the balance of deionized water.
By adopting the technical scheme, the sand fixing agent obtained by adopting the water glass solution has good sand fixing effect and excellent ageing resistance, freeze thawing resistance and wind erosion resistance. The sodium carboxymethyl cellulose has certain thickening and bonding effects, and can improve the sand-fixing effect of the sand-fixing agent. The polypropylene fiber is very easy to be in a net structure, and the anionic polyacrylamide is adopted to easily combine the molecular structures, so that the net structure is firmer and denser, and the sand fixing effect of the sand fixing agent is improved. The nano calcium carbonate is compounded with other raw materials to form a netlike coating film to coat the sand particles, so that sand crust is formed, the sand crust is not fragile and tough, and the sand crust is not damaged after meeting water.
As preferable: the polypropylene sheet also comprises the following raw materials in parts by weight: 5-10 parts of ethylene-octene copolymer and 3-5 parts of polylactic acid.
By adopting the technical scheme, the ethylene-octene copolymer has softer property, good toughness and high bonding strength, and in addition, has excellent thermo-oxidative aging resistance and mechanical property, and can improve the strength of the polypropylene waterproof coiled material. Polylactic acid has excellent mechanical properties. And the polypropylene waterproof coiled material has good compatibility with ethylene-octene copolymer, and can further improve the strength of the polypropylene waterproof coiled material.
As preferable: the weight part ratio of the polylactic acid to the ethylene-octene copolymer is 1: (1.5-2.5).
By adopting the technical scheme, the strength of the polypropylene sheet can be further improved by adjusting the weight part ratio of the polylactic acid and the ethylene-octene copolymer, so that the strength of the polypropylene waterproof coiled material is improved.
In a second aspect, the application provides a preparation method of a polypropylene waterproof coiled material, which is realized by the following technical scheme:
the preparation method of the polypropylene waterproof coiled material comprises the following operation steps:
preparing a polypropylene sheet: mixing the raw materials of the polypropylene layer, heating, stirring and melting at 160-230 ℃, extruding, spinning, drawing and elongating, spreading and lapping, rolling and fastening, cooling and shaping to obtain a polypropylene sheet;
preparing a pressure-sensitive adhesive: heating the styrene-isoprene-styrene block copolymer and styrene-butadiene rubber to 145-155 ℃ for melting, adding antioxidant 1010 and hydrogenated rosin resin, and melting and stirring for 40-60min to obtain a pressure-sensitive adhesive;
preparing a separation film: mixing the raw materials of the isolating film with water, uniformly stirring at 70-80 ℃, filtering, collecting solids, extruding, attaching to the surface of a cold drum to form a casting sheet, stripping to form a sheet, stretching, carrying out heat setting treatment, cooling, flattening a film, and cutting off waste edges to obtain the isolating film;
and (3) pressing the self-adhesive polymer modified asphalt on the surface of the polypropylene sheet to form a self-adhesive polymer modified asphalt layer, pressing a separation film on the surface of the self-adhesive polymer modified asphalt layer to form a first separation layer, coating a pressure-sensitive adhesive on the other surface of the polypropylene sheet to form a pressure-sensitive adhesive layer, and then pressing the separation film on the pressure-sensitive adhesive layer to obtain the polypropylene waterproof coiled material.
In a third aspect, the application provides a preparation method of a polypropylene waterproof coiled material, which is realized by the following technical scheme:
the preparation method of the polypropylene waterproof coiled material comprises the following operation steps:
preparing a polypropylene sheet;
preparing a pressure-sensitive adhesive;
preparing a sand fixing agent: mixing nano calcium carbonate with deionized water, stirring and dissolving, adding water glass solution for reaction for 3-4h, adding polyacrylamide for reaction for 1-2h, adding sodium carboxymethyl cellulose, and stirring uniformly to obtain a sand fixing agent;
preparing a separation film;
and pressing the self-adhesive polymer modified asphalt on the surface of the polypropylene sheet to form a self-adhesive polymer modified asphalt layer, pressing a separation film on the surface of the self-adhesive polymer modified asphalt layer to form a first separation layer, coating a pressure-sensitive adhesive on the surface of the polypropylene sheet to form a pressure-sensitive adhesive layer, spreading high-temperature sintered sand on the surface of the pressure-sensitive adhesive layer to form a high-temperature sintered sand layer, continuously coating a sand-fixing agent on the high-temperature sintered sand layer to form a sand-fixing agent layer, and pressing the separation film on the pressure-sensitive adhesive layer to obtain the polypropylene waterproof coiled material.
In summary, the present application includes at least one of the following beneficial technical effects:
(1) According to the application, by determining the composite structure of the polypropylene waterproof coiled material sequentially comprising the first isolation layer, the self-adhesive polymer modified asphalt layer, the polypropylene sheet, the pressure-sensitive adhesive layer and the isolation layer from bottom to top and adjusting the types and the doping amounts of the raw materials of the polypropylene waterproof coiled material, the longitudinal tension, the transverse tension, the longitudinal tearing strength, the transverse tearing strength and the bursting strength of the polypropylene waterproof coiled material are respectively 2013N, 2251N, 170N, 240N and 1556N, and the strength of the polypropylene waterproof coiled material is improved.
(2) According to the application, the high-temperature sintered sand layer and the sand fixing agent layer are added between the pressure sensitive adhesive layer and the second isolation layer, and the types and the mixing amount of raw materials of the sand fixing agent are regulated, so that the longitudinal tension, the transverse tension, the longitudinal tearing strength, the transverse tearing strength and the bursting strength of the polypropylene fiber waterproof coiled material are respectively 2056N, 2356N, 183N, 253N and 1603N, and the longitudinal free shrinkage rate and the transverse free shrinkage are respectively-0.42% and-0.53%, so that the strength of the polypropylene fiber waterproof coiled material is improved under the condition of higher stability.
(3) According to the application, the polylactic acid and the ethylene-octene copolymer are added into the polypropylene sheet, and the dosage proportion of the polylactic acid and the ethylene-octene copolymer is adjusted, so that the longitudinal tension, the transverse tension, the longitudinal tearing strength, the transverse tearing strength and the bursting strength of the polypropylene waterproof coiled material are respectively 2105N, 2545N, 188N, 278N and 1731N, and the strength of the polypropylene waterproof coiled material is further improved.
Detailed Description
The present application will be described in further detail with reference to specific examples.
The following raw materials are all commercial products, so that the raw materials of the application are fully disclosed, and the raw materials are not to be understood as limiting the sources of the raw materials. The method comprises the following steps: polypropylene, korean brand dawn, brand R701; nano silicon nitride with the grain diameter of 20nm; nanometer bentonite with a particle size of 200 meshes; styrene-isoprene-styrene block copolymer, brand No. 1105, petrochemical baling in brand; hydrogenated rosin resin, model LA-5G; styrene butadiene rubber with brand Baling petrochemical property, shore hardness of 89 and solution viscosity of 1050 at 25 ℃; polyvinyl alcohol, the content of effective substances is 98%; quartz sand with the grain diameter of 40 meshes; quartz stone ore particles with the particle size of 325 meshes; water glass with 99% of active substances; nano calcium carbonate with the particle size of 800 meshes; ethylene-octene copolymer, shore hardness 16, model 8180; polylactic acid, brand name Nature works, USA, brand name 3100HP.
Example 1
The polypropylene waterproof roll of example 1 was obtained by the following operation steps:
preparing a polypropylene sheet: according to the mixing amount of table 1, polypropylene, nano silicon nitride, nano bentonite, gamma-glycidol ether oxypropyl trimethoxy silane, tri (2, 4-di-tert-butylphenyl) phosphite and bis (2, 6-tetramethyl piperidinyl) sebacate are mixed, heated, stirred and melted at 200 ℃, extruded, spun, drawn, stretched, spread and spread, rolled and connected, cooled and shaped to obtain a polypropylene sheet;
preparing a pressure-sensitive adhesive: heating 72kg of styrene-isoprene-styrene block copolymer and 7kg of styrene-butadiene rubber to 150 ℃ for melting, adding 0.6kg of antioxidant 1010 and 20.4kg of hydrogenated rosin resin, and melting and stirring for 40min to obtain a pressure-sensitive adhesive;
preparing a separation film: mixing 80kg of polyvinyl alcohol, 4kg of quartz sand, 1kg of sodium hexametaphosphate, 3kg of sodium dodecyl benzene sulfonate and 12L of water, uniformly stirring at 75 ℃, melting, filtering, collecting solids, extruding, attaching the solid to the surface of a cold drum to form a casting sheet, stripping to form a sheet, stretching, heat setting, cooling, flattening a film, and cutting off waste edges to obtain a separation film;
and (3) pressing the self-adhesive polymer modified asphalt on the surface of the polypropylene sheet to form a self-adhesive polymer modified asphalt layer, pressing a separation film on the surface of the self-adhesive polymer modified asphalt layer to form a first separation layer, coating a pressure-sensitive adhesive on the other surface of the polypropylene sheet to form a pressure-sensitive adhesive layer, and then pressing the separation film on the pressure-sensitive adhesive layer to obtain the polypropylene waterproof coiled material.
Examples 2 to 3
The polypropylene waterproof coiled materials of examples 2-3 are identical to the preparation method and the raw material types of example 1, except that the blending amounts of the raw materials of the polypropylene sheet are different, and the specific details are shown in table 1.
TABLE 1 examples 1-3 Polypropylene sheets were prepared by blending amounts (unit: kg) of the respective raw materials
| Raw materials | Example 1 | Example 2 | Example 3 |
| Polypropylene | 95 | 95 | 95 |
| Nano silicon nitride | 2 | 2.5 | 3 |
| Nanometer bentonite | 4.5 | 4.5 | 4.5 |
| Gamma-glycidol ether oxypropyl trimethoxy silane | 0.8 | 0.8 | 0.8 |
| Tris (2, 4-di-tert-butylphenyl) phosphite | 2 | 2 | 2 |
| Bis (2, 6-tetramethylpiperidinyl) sebacate | 2 | 2 | 2 |
Example 4
The polypropylene waterproof roll of example 4 was obtained by the following operation steps:
preparing a polypropylene sheet: mixing 95kg of polypropylene, 2.5kg of nano silicon nitride, 4.5kg of nano bentonite, 0.8kg of gamma-glycidol ether oxypropyl trimethoxy silane, 2kg of tri (2, 4-di-tert-butylphenyl) phosphite and 2kg of bis (2, 6-tetramethylpiperidinyl) sebacic acid ester, stirring and melting, extruding, spinning, stretching, spreading and lapping, rolling and fastening, and cooling and shaping to obtain a polypropylene sheet;
preparing a pressure-sensitive adhesive: heating 72kg of styrene-isoprene-styrene block copolymer and 7kg of styrene-butadiene rubber to 150 ℃ for melting, adding 0.6kg of antioxidant 1010 and 20.4kg of hydrogenated rosin resin, and melting and stirring for 40min to obtain a pressure-sensitive adhesive;
preparing a sand fixing agent: mixing nano calcium carbonate with deionized water according to the mixing amount of table 2, stirring and dissolving, adding water glass for reaction for 3-4h, adding polyacrylamide for reaction for 1-2h, adding sodium carboxymethyl cellulose, and stirring uniformly to obtain a sand fixing agent;
preparing a separation film: mixing 80kg of polyvinyl alcohol, 4kg of quartz sand, 1kg of sodium hexametaphosphate, 3kg of sodium dodecyl benzene sulfonate and 12L of water, uniformly stirring, melting, filtering, collecting solids, extruding, attaching the surfaces of the cold drums to form cast sheets, stripping to form sheets, stretching, performing heat setting treatment, cooling, flattening films, and cutting waste edges to obtain a separation film;
and pressing the self-adhesive polymer modified asphalt on the surface of the polypropylene sheet to form a self-adhesive polymer modified asphalt layer, pressing a separation film on the surface of the self-adhesive polymer modified asphalt layer to form a first separation layer, coating a pressure-sensitive adhesive on the surface of the polypropylene sheet to form a pressure-sensitive adhesive layer, spreading high-temperature sintered sand on the surface of the pressure-sensitive adhesive layer to form a high-temperature sintered sand layer, continuously coating a sand-fixing agent on the high-temperature sintered sand layer to form a sand-fixing agent layer, and pressing the separation film on the pressure-sensitive adhesive layer to obtain the polypropylene waterproof coiled material.
Examples 5 to 6
The polypropylene waterproof coiled materials of examples 5-6 are identical to the preparation method and the raw material types of example 4, except that the mixing amounts of the raw materials of the sand fixing agent are different, and the specific details are shown in table 2.
TABLE 2 mixing amount (unit: kg) of each raw material of the sand fixing agent of examples 4-6
| Raw materials | Example 4 | Example 5 | Example 6 |
| Water glass | 25 | 25 | 25 |
| Sodium carboxymethyl cellulose | 0.2 | 0.2 | 0.2 |
| Polyacrylamide | 0.2 | 0.2 | 0.2 |
| Nanometer calcium carbonate | 1.5 | 1.6 | 1.7 |
| Water and its preparation method | 73.1 | 73 | 72.9 |
Examples 7 to 10
The polypropylene waterproof coiled materials of examples 7-10 are identical to the preparation method and the raw material types of example 4, except that the mixing amounts of the raw materials of the sand fixing agent are different, and the specific details are shown in table 3.
TABLE 3 amounts of raw materials (unit: kg) for Polypropylene sheets of examples 7-10
| Raw materials | Example 7 | Example 8 | Example 9 | Example 10 |
| Polypropylene | 95 | 95 | 95 | 95 |
| Nano silicon nitride | 2.5 | 2.5 | 2.5 | 2.5 |
| Nanometer bentonite | 4.5 | 4.5 | 4.5 | 4.5 |
| Gamma-glycidoxypropylTrimethoxysilane | 0.8 | 0.8 | 0.8 | 0.8 |
| Tris (2, 4-di-tert-butylphenyl) phosphite | 2 | 2 | 2 | 2 |
| Bis (2, 6-tetramethylpiperidinyl) sebacate | 2 | 2 | 2 | 2 |
| Ethylene-octene copolymer | 4.5 | 10 | 10 | 5 |
| Polylactic acid | 3 | 5 | 4 | 5 |
Comparative example 1
The polypropylene waterproof roll of comparative example 1 is exactly the same as the preparation method of example 1, except that: nano silicon nitride is not added in the polypropylene sheet material; the other materials and the blending amount were the same as in example 1.
Comparative example 2
The waterproof roll of comparative example 2 is a commercially available polyethylene polypropylene waterproof roll, and is a brand of Hongniu.
Performance detection
The polypropylene waterproof rolls obtained in the different examples 1 to 10 and comparative examples 1 to 2 were respectively subjected to performance tests by the following test standards or methods, and the test results are shown in Table 4.
Longitudinal and transverse tension: the GB/T328.9-2007 building waterproof roll test method is adopted to detect the longitudinal and transverse tensile force of the polypropylene waterproof roll.
Machine direction and transverse tear strength: the tearing strength of the polypropylene waterproof coiled material is detected by using GB/T328.19-2007 building waterproof coiled material test method.
Burst strength: the bursting strength of the polypropylene waterproof coiled material is detected by using GB/T328.9-2007 building waterproof coiled material test method.
Permeation resistance: the permeability resistance of the polypropylene waterproof roll is detected by using GB/T328.10-2007 building waterproof roll test method.
Free heat shrinkage: a 20cm×20cm cloth sample was cut, placed in an oven at 180 ℃ and allowed to stand for 15 minutes, and then the longitudinal and transverse length thereof was measured, with the deformation ratio=the longitudinal and transverse length after treatment/the longitudinal and transverse length before treatment×100%.
Table 4 results of performance measurements on different polypropylene waterproof rolls
The detection results in Table 4 show that the thickness of the polypropylene waterproof roll obtained in the application is 0.75mm, and the highest longitudinal tensile force, transverse tensile force, longitudinal tearing strength, transverse tearing strength and bursting strength are respectively 2105N, 2545N, 188N, 278N and 1731N, so that the strength of the polypropylene waterproof roll is improved; and the minimum longitudinal free shrinkage and the minimum transverse free shrinkage are-0.49% and-0.58%, respectively, so that the high-stability composite material has higher stability.
In examples 1-3, the longitudinal tensile force, the transverse tensile force, the longitudinal tearing strength, the transverse tearing strength and the bursting strength of the polypropylene waterproof coiled material obtained in example 2 are 2013N, 2251N, 170N, 240N and 1556N respectively, which are higher than those of examples 1 and 3, so that the strength of the polypropylene waterproof coiled material is improved; and the longitudinal free shrinkage and the transverse free shrinkage are respectively-0.35% and-0.48%, which are lower than those of the examples 1 and 3, and the stability is higher. The method shows that the doping amount of the nano silicon nitride in the polypropylene sheet raw material in the embodiment 2 is proper, the strength of the polypropylene waterproof coiled material is improved, the heat stability of the polypropylene waterproof coiled material is possibly better than that of the nano silicon nitride, the polypropylene waterproof coiled material has higher mechanical strength, and the hardness is close to that of corundum.
In examples 4 to 6, the longitudinal tension, the transverse tension, the longitudinal tearing strength, the transverse tearing strength and the bursting strength of the polypropylene waterproof roll obtained in example 5 are 2056N, 2356N, 183N, 253N and 1603N respectively, which are higher than those of examples 4 and 6, so that the strength of the polypropylene waterproof roll is improved; and the longitudinal free shrinkage and the transverse free shrinkage are-0.42% and-0.53%, respectively, which are lower than those of the examples 4 and 6, and have higher stability. The embodiment 5 shows that the mixing amount of the nano calcium carbonate in the sand fixing agent raw material is proper, the strength of the polypropylene fiber waterproof coiled material is improved, and the nano calcium carbonate and other raw materials can be compounded together to form a net-shaped coating film to be coated on sand grains, so that sand crust is formed, the sand crust is not fragile and has toughness, and the sand crust is not damaged after meeting water.
In examples 7 to 10, the longitudinal tensile force, the transverse tensile force, the longitudinal tearing strength, the transverse tearing strength and the bursting strength of the polypropylene waterproof roll obtained in example 8 are respectively 2105N, 2545N, 188N, 278N and 1731N, which are higher than those of examples 7 and 9 to 10, so that the strength of the polypropylene waterproof roll is improved; and the longitudinal free shrinkage and the transverse free shrinkage are-0.49% and-0.58%, respectively, which are lower than those of the examples 7 and 9-10, respectively, and have higher stability. The weight ratio of polylactic acid to ethylene-octene copolymer is 1:2, which improves the strength of polypropylene waterproof coiled material, and is possibly related to the weight ratio of polylactic acid to ethylene-octene copolymer, which can further improve the strength of polypropylene sheet.
According to the polypropylene waterproof roll performance detection data of the comparative examples 1-2 and the example 1, the nano silicon nitride and the composite structure of the polypropylene waterproof roll sequentially comprising the polypropylene sheet, the pressure-sensitive adhesive layer and the isolation layer from bottom to top are added into the polypropylene sheet raw material, so that the strength of the polypropylene waterproof roll is improved to different degrees.
The present embodiment is only for explanation of the present application and is not to be construed as limiting the present application, and modifications to the present embodiment, which may not creatively contribute to the present application as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present application.
Claims (7)
1. The polypropylene waterproof coiled material is characterized by sequentially comprising a first isolation layer, a self-adhesive polymer modified asphalt layer, a polypropylene sheet, a pressure-sensitive adhesive layer and a second isolation layer from bottom to top, wherein the polypropylene sheet comprises the following raw materials in parts by weight: 90-100 parts of polypropylene, 2-3 parts of nano silicon nitride, 4-5 parts of nano bentonite, 0.6-1 part of gamma-glycidol ether oxypropyl trimethoxy silane, 1-3 parts of tri (2, 4-di-tert-butylphenyl) phosphite and 1-3 parts of bis (2, 6-tetramethylpiperidinyl) sebacic acid ester;
the pressure-sensitive adhesive layer is formed by coating pressure-sensitive adhesive on the surface of a polypropylene sheet, and comprises the following raw materials in percentage by weight: 65-80% of styrene-isoprene-styrene block copolymer, 10-30% of hydrogenated rosin resin, 5-10% of styrene-butadiene rubber and 0.5-1% of antioxidant 1010;
the second isolation layer is formed by laminating an isolation film on the surface of the pressure-sensitive adhesive layer, and the isolation film comprises the following raw materials in percentage by weight: 75-85% of polyvinyl alcohol, 3-5% of quartz sand, 1-2% of sodium hexametaphosphate, 2-4% of sodium dodecyl benzene sulfonate and 10-20% of water.
2. The polypropylene waterproof coiled material according to claim 1, wherein the self-adhesive polymer modified asphalt layer is formed by laminating self-adhesive polymer modified asphalt on the other surface of the polypropylene sheet; the first isolation layer is formed by laminating an isolation film on the surface of the self-adhesive polymer modified asphalt layer.
3. The polypropylene waterproof roll as claimed in claim 1, wherein: the polypropylene waterproof coiled material sequentially comprises a first isolation layer, a self-adhesive polymer modified asphalt layer, a polypropylene sheet, a pressure-sensitive adhesive layer, a high-temperature sintered sand layer, a sand fixing agent layer and a second isolation layer from bottom to top; the high-temperature sintered sand layer is formed by spreading high-temperature sintered sand on the surface of the pressure-sensitive adhesive layer; the high-temperature sintered sand is formed by calcining quartz stone ore particles;
the sand-fixing agent layer is formed by coating a sand-fixing agent on the surface of the high-temperature sintered sand layer, and comprises the following raw materials in percentage by weight: 20-30% of water glass, 0.1-0.3% of sodium carboxymethyl cellulose, 0.1-0.3% of polyacrylamide, 1.5-1.7% of nano calcium carbonate and the balance of deionized water.
4. The polypropylene waterproof roll as claimed in claim 3, wherein the polypropylene sheet further comprises the following raw materials in parts by weight: 5-10 parts of ethylene-octene copolymer and 3-5 parts of polylactic acid.
5. The polypropylene waterproof roll as defined in claim 4, wherein: the weight part ratio of the polylactic acid to the ethylene-octene copolymer is 1: (1.5-2.5).
6. A method for preparing the polypropylene waterproof coiled material according to any one of claims 1 to 2, which is characterized by comprising the following operation steps:
preparing a polypropylene sheet: mixing the raw materials of the polypropylene layer, heating, stirring and melting at 160-230 ℃, extruding, spinning, drawing and elongating, spreading and lapping, rolling and fastening, cooling and shaping to obtain a polypropylene sheet;
preparing a pressure-sensitive adhesive: heating the styrene-isoprene-styrene block copolymer and styrene-butadiene rubber to 145-155 ℃ for melting, adding antioxidant 1010 and hydrogenated rosin resin, and melting and stirring for 40-60min to obtain a pressure-sensitive adhesive;
preparing a separation film: mixing the raw materials of the isolating film with water, uniformly stirring at 70-80 ℃, filtering, collecting solids, extruding, attaching to the surface of a cold drum to form a casting sheet, stripping to form a sheet, stretching, carrying out heat setting treatment, cooling, flattening a film, and cutting off waste edges to obtain the isolating film;
and (3) pressing the self-adhesive polymer modified asphalt on the surface of the polypropylene sheet to form a self-adhesive polymer modified asphalt layer, pressing a separation film on the surface of the self-adhesive polymer modified asphalt layer to form a first separation layer, coating a pressure-sensitive adhesive on the other surface of the polypropylene sheet to form a pressure-sensitive adhesive layer, and then pressing the separation film on the pressure-sensitive adhesive layer to obtain the polypropylene waterproof coiled material.
7. A method for preparing the polypropylene waterproof coiled material according to any one of claims 3 to 5, which is characterized by comprising the following operation steps:
preparing a polypropylene sheet;
preparing a pressure-sensitive adhesive;
preparing a sand fixing agent: mixing nano calcium carbonate with deionized water, stirring and dissolving, adding water glass solution for reaction for 3-4h, adding polyacrylamide for reaction for 1-2h, adding sodium carboxymethyl cellulose, and stirring uniformly to obtain a sand fixing agent;
preparing a separation film;
and pressing the self-adhesive polymer modified asphalt on the surface of the polypropylene sheet to form a self-adhesive polymer modified asphalt layer, pressing a separation film on the surface of the self-adhesive polymer modified asphalt layer to form a first separation layer, coating a pressure-sensitive adhesive on the surface of the polypropylene sheet to form a pressure-sensitive adhesive layer, spreading high-temperature sintered sand on the surface of the pressure-sensitive adhesive layer to form a high-temperature sintered sand layer, continuously coating a sand-fixing agent on the high-temperature sintered sand layer to form a sand-fixing agent layer, and pressing the separation film on the pressure-sensitive adhesive layer to obtain the polypropylene waterproof coiled material.
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