CN112876872B - Modified asphalt waterproof coiled material for roads and bridges and preparation method thereof - Google Patents
Modified asphalt waterproof coiled material for roads and bridges and preparation method thereof Download PDFInfo
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- CN112876872B CN112876872B CN202110298990.1A CN202110298990A CN112876872B CN 112876872 B CN112876872 B CN 112876872B CN 202110298990 A CN202110298990 A CN 202110298990A CN 112876872 B CN112876872 B CN 112876872B
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- 239000010426 asphalt Substances 0.000 title claims abstract description 196
- 239000000463 material Substances 0.000 title claims abstract description 97
- 238000002360 preparation method Methods 0.000 title claims abstract description 75
- QYMGIIIPAFAFRX-UHFFFAOYSA-N butyl prop-2-enoate;ethene Chemical compound C=C.CCCCOC(=O)C=C QYMGIIIPAFAFRX-UHFFFAOYSA-N 0.000 claims abstract description 34
- 229920006245 ethylene-butyl acrylate Polymers 0.000 claims abstract description 34
- 239000005038 ethylene vinyl acetate Substances 0.000 claims abstract description 28
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims abstract description 28
- 238000004078 waterproofing Methods 0.000 claims abstract description 23
- 239000012528 membrane Substances 0.000 claims abstract description 21
- 239000004576 sand Substances 0.000 claims abstract description 16
- 239000000945 filler Substances 0.000 claims abstract description 12
- 238000002955 isolation Methods 0.000 claims abstract description 12
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims abstract description 11
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims abstract description 11
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims abstract description 11
- 150000008064 anhydrides Chemical class 0.000 claims abstract description 10
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 7
- -1 polyethylene Polymers 0.000 claims description 24
- 239000004698 Polyethylene Substances 0.000 claims description 23
- 229920000573 polyethylene Polymers 0.000 claims description 23
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 18
- 229920001897 terpolymer Polymers 0.000 claims description 18
- 229920000346 polystyrene-polyisoprene block-polystyrene Polymers 0.000 claims description 13
- 229920005989 resin Polymers 0.000 claims description 13
- 239000011347 resin Substances 0.000 claims description 13
- 239000011248 coating agent Substances 0.000 claims description 12
- 238000000576 coating method Methods 0.000 claims description 12
- 239000003208 petroleum Substances 0.000 claims description 11
- 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 claims description 10
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 9
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 9
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 8
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 8
- 239000000155 melt Substances 0.000 claims description 8
- 229910052710 silicon Inorganic materials 0.000 claims description 8
- 239000010703 silicon Substances 0.000 claims description 8
- 229920001577 copolymer Polymers 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 229920003314 Elvaloy® Polymers 0.000 claims 2
- 238000010276 construction Methods 0.000 abstract description 14
- 238000005098 hot rolling Methods 0.000 abstract description 9
- 239000010410 layer Substances 0.000 description 43
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 description 24
- 230000000052 comparative effect Effects 0.000 description 19
- 238000012360 testing method Methods 0.000 description 12
- 238000003756 stirring Methods 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- DUIOKRXOKLLURE-UHFFFAOYSA-N 2-octylphenol Chemical compound CCCCCCCCC1=CC=CC=C1O DUIOKRXOKLLURE-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 239000004568 cement Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 239000004567 concrete Substances 0.000 description 3
- 230000001808 coupling effect Effects 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 239000003607 modifier Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical group [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- FCZCIXQGZOUIDN-UHFFFAOYSA-N ethyl 2-diethoxyphosphinothioyloxyacetate Chemical compound CCOC(=O)COP(=S)(OCC)OCC FCZCIXQGZOUIDN-UHFFFAOYSA-N 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- XPVIQPQOGTVMSU-UHFFFAOYSA-N (4-acetamidophenyl)arsenic Chemical compound CC(=O)NC1=CC=C([As])C=C1 XPVIQPQOGTVMSU-UHFFFAOYSA-N 0.000 description 1
- CYEJMVLDXAUOPN-UHFFFAOYSA-N 2-dodecylphenol Chemical compound CCCCCCCCCCCCC1=CC=CC=C1O CYEJMVLDXAUOPN-UHFFFAOYSA-N 0.000 description 1
- VSKJLJHPAFKHBX-UHFFFAOYSA-N 2-methylbuta-1,3-diene;styrene Chemical compound CC(=C)C=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 VSKJLJHPAFKHBX-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 240000005049 Prunus salicina Species 0.000 description 1
- 235000012904 Prunus salicina Nutrition 0.000 description 1
- 235000003681 Prunus ussuriensis Nutrition 0.000 description 1
- QXOXHPTYHCESTD-UHFFFAOYSA-N SBS Chemical compound SBS QXOXHPTYHCESTD-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 150000008065 acid anhydrides Chemical class 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 229920013640 amorphous poly alpha olefin Polymers 0.000 description 1
- 239000011384 asphalt concrete Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical group CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 229920006038 crystalline resin Polymers 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006353 environmental stress Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical group CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 229920005604 random copolymer Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
-
- 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
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/24—Methods or arrangements for preventing slipperiness or protecting against influences of the weather
-
- 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
-
- 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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The application relates to the technical field of waterproof coiled materials, in particular to a modified asphalt waterproof coiled material for roads and bridges and a preparation method thereof. The modified asphalt waterproof coiled material for roads and bridges comprises a sand layer, an upper surface modified asphalt layer, a base course layer, a lower surface modified asphalt layer and an isolation layer, wherein the preparation raw materials of the upper surface modified asphalt layer comprise, by weight, 60-80 parts of asphalt, 10-20 parts of ethylene-butyl acrylate copolymer, 5-15 parts of ethylene-vinyl acetate copolymer, 5-15 parts of anhydride modified esterified rosin, 25-35 parts of filler and 2-5 parts of silane coupling agent. The application provides a modified asphalt waterproofing membrane for road and bridge can improve low temperature flexibility and shear strength, can also improve road and bridge modified asphalt waterproofing membrane's heat resistance and imperviousness, and require lowerly to the construction condition, and the impermeability is good after the hot rolling.
Description
Technical Field
The application relates to the technical field of waterproof coiled materials, in particular to a modified asphalt waterproof coiled material for roads and bridges and a preparation method thereof.
Background
Roads and bridges with cement concrete as the surface layer are often paved with modified asphalt waterproof coiled materials. Modified asphalt waterproofing membrane is a flexible slice waterproof material, divides according to the construction method, and modified asphalt waterproofing membrane for road and bridge mainly has self-adhesion type modified asphalt waterproofing membrane, SBS type modified asphalt waterproofing membrane, APP I type modified asphalt waterproofing membrane and APP II type modified asphalt waterproofing membrane. The ductility and the durability of the SBS type modified asphalt waterproof coiled material are superior to those of self-adhesive type modified asphalt waterproof coiled materials, APP I type modified asphalt waterproof coiled materials and APP II type modified asphalt waterproof coiled materials. In addition, the commercially available SBS type modified asphalt waterproof coiled material has higher heat resistance, and can ensure that a waterproof layer is not damaged when high-heat asphalt concrete is paved, so that the SBS type modified asphalt waterproof coiled material is widely applied to waterproof materials for roads and bridges.
However, the SBS type modified asphalt waterproof coiled material on the market needs a hot melting means during construction, and needs to be subjected to open fire hot melting by taking natural gas as a raw material, so that the asphalt generates waste gas during combustion, and the atmospheric environment is easily polluted. The hot-melting construction operation requirement of the SBS type modified asphalt waterproof coiled material is high, and the waterproof coiled material can be fully adhered and fully paved only after being uniformly heated. In addition, the influence of the external environment of the temperature in winter causes obvious expansion and contraction phenomena of the SBS type modified asphalt waterproof coiled material, so that cracks often appear at low temperature, and the waterproof performance of the SBS type modified asphalt waterproof coiled material is reduced.
The patent with the publication number of CN107266917B adopts high-compactness modified asphalt to improve the low-temperature flexibility of the waterproof coiled material, the high-compactness modified asphalt takes SBS, butadiene styrene rubber and APAO as modifiers, the high-compactness modified asphalt takes organic bentonite, carbon black and talcum powder as fillers, and the compatibility and the dispersibility of the fillers and the modifiers are poor, so that the shear strength of the waterproof coiled material of the modified asphalt is reduced.
Disclosure of Invention
For the low temperature flexibility and the shear strength who improves modified asphalt waterproofing membrane for road and bridge, this application provides a modified asphalt waterproofing membrane for road and bridge.
The application provides a modified asphalt waterproofing membrane for road and bridge, adopts following technical scheme to realize:
the modified asphalt waterproof coiled material for roads and bridges comprises a sand layer, an upper surface modified asphalt layer, a base course layer, a lower surface modified asphalt layer and an isolation layer, wherein the preparation raw materials of the upper surface modified asphalt layer comprise, by weight, 60-80 parts of asphalt, 10-20 parts of ethylene-butyl acrylate copolymer, 5-15 parts of ethylene-vinyl acetate copolymer, 5-15 parts of anhydride modified esterified rosin, 25-35 parts of filler and 2-5 parts of silane coupling agent.
By adopting the technical scheme, in the upper surface modified asphalt material with the proportion, the asphalt modified by the ethylene-butyl acrylate copolymer and the ethylene-vinyl acetate copolymer is a novel modified asphalt material, and compared with the styrene-butadiene-styrene block copolymer modified asphalt, the low-temperature flexibility and the shear strength of the modified asphalt waterproof coiled material for roads and bridges can be improved, the heat resistance and the water impermeability of the modified asphalt waterproof coiled material for roads and bridges can also be improved, the requirement on construction conditions is lower, and the impermeability after hot rolling is good. The ethylene-butyl acrylate copolymer is a random copolymer, the ethylene-vinyl acetate copolymer has environmental stress crack resistance, the adhesion force of the upper surface modified asphalt layer and the tire base layer is improved by adding the butyl acrylate chain segment, the compatibility and the dispersibility of the filler and the modifier are improved, and the shear strength of the modified asphalt waterproof coiled material for roads and bridges is improved. In addition, the anhydride modified esterified rosin contains non-crystalline acid radical functional group-containing resin, has plasticity and coupling effect, can control effective molecular structure, increases heat resistance and processability of the modified asphalt waterproof coiled material for roads and bridges, and greatly reduces harm caused by asphalt combustion during construction.
Preferably, the raw materials for preparing the lower surface modified asphalt layer comprise, by mass, 15-25% of styrene-isoprene-styrene block copolymer, 3-5% of polyethylene wax, 1-2% of octylphenol polyoxyethylene ether, 10-20% of talcum powder, 4-8% of organic silicon resin and the balance of petroleum asphalt.
By adopting the technical scheme, in the lower surface modified asphalt material prepared according to the above proportion, the styrene-isoprene-styrene block copolymer modified petroleum asphalt improves the low-temperature flexibility (no crack at-25 ℃ and-35 ℃) of the modified asphalt waterproof coiled material for roads and bridges under the combined action of polyethylene wax, organic silicon resin and octylphenol polyoxyethylene ether, improves the water impermeability (0.9MPa/180min) and the impermeability after hot rolling of the modified asphalt waterproof coiled material for roads and bridges, and improves the shear strength of the modified asphalt waterproof coiled material for roads and bridges.
Preferably, the polyethylene wax has a number average molecular weight of 2000-3000 and a softening point of 90-95 ℃.
By adopting the technical scheme, the polyethylene wax is floated in the lower surface modified asphalt material in a microcrystalline form, the polyethylene wax with low number average molecular weight and low softening point can reduce the viscosity of the lower surface modified asphalt material, the compatibility and the dispersibility of the talcum powder are improved, the talcum powder is prevented from being adhered or precipitated, and the shear strength of the modified asphalt waterproof roll for roads and bridges is further improved.
Preferably, the styrene-isoprene-styrene block copolymer has a styrene content of 16 to 18wt% and a melt mass flow rate of 20 to 30g/min at 190 ℃ under 5.0 kg.
By adopting the technical scheme, the shear strength of the modified asphalt waterproof coiled material for roads and bridges can be further improved by adopting the styrene-isoprene-styrene block copolymer with the styrene content of 16-18wt% and the melt mass flow rate of 20-30g/min at 190 ℃ under 5.0 kg. The reason is that the hardness is higher when the styrene content is high, the softness is high when the styrene content is low, and the dispersion of the talcum powder in the lower surface modified asphalt material is not facilitated when the melt mass flow rate is low.
Preferably, the ethylene-butyl acrylate copolymer is selected from one or more of ethylene-butyl acrylate-glycidyl methacrylate terpolymer, ethylene-butyl acrylate-maleic anhydride terpolymer and ethylene-butyl acrylate copolymer; more preferably, the ethylene-butyl acrylate copolymer is a mixture of an ethylene-butyl acrylate-maleic anhydride terpolymer and an ethylene-butyl acrylate bipolymer; even more preferably, the ethylene-butyl acrylate copolymer is a mixture of an ethylene-butyl acrylate-glycidyl methacrylate terpolymer, an ethylene-butyl acrylate-maleic anhydride terpolymer and an ethylene-butyl acrylate bipolymer.
By adopting the technical scheme, the ethylene-butyl acrylate-glycidyl methacrylate terpolymer, the ethylene-butyl acrylate-maleic anhydride terpolymer and the ethylene-butyl acrylate bipolymer are compounded to be used as the ethylene-butyl acrylate copolymer, so that the shear strength of the modified asphalt waterproof coiled material for roads and bridges can be further improved. The three components are compounded and influenced by the glycidyl methacrylate chain segment and the maleic anhydride chain segment, so that the dispersion and compatibility of various substances in the upper surface modified asphalt material are improved, the adhesion of the upper surface modified asphalt to a sand layer is improved, the sand layer is prevented from falling off, and the shear strength of the modified asphalt waterproof coiled material for roads and bridges is improved.
Preferably, in the ethylene-butyl acrylate-maleic anhydride terpolymer, the content of maleic anhydride is 3.1-3.6 wt%; more preferably, the ethylene-butyl acrylate-maleic anhydride terpolymer has a maleic anhydride content of 3.6 wt%.
By adopting the technical scheme, the ethylene-butyl acrylate-maleic anhydride terpolymer with the maleic anhydride content of 3.6wt% has higher shear strength corresponding to the modified asphalt waterproof coiled material for roads and bridges.
Preferably, the ethylene-butyl acrylate binary copolymer is
3427AC and/or
AC 34035; more preferably, the ethylene-butyl acrylate copolymer is
3427AC。
By adopting the technical scheme, the ethylene-butyl acrylate binary copolymer
3427 the modified asphalt waterproof coiled material for roads and bridges has high shear strength.
Preferably, the ethylene-vinyl acetate copolymer is selected from one or more of taistox 7470M, SEETEC EVA VA810, LG EVA EA 28025; more preferably, the ethylene-vinyl acetate copolymer is taistox 7470M.
By adopting the technical scheme, the ethylene-vinyl acetate copolymer TAISOX 7470M can further improve the shear strength of the modified asphalt waterproof roll for roads and bridges. The reason is that the ethylene-vinyl acetate copolymer TAISOX 7470M has good toughness and can be crosslinked, and the compatibility and the dispersibility of the filler in the upper surface modified asphalt material are further improved under the combined action of the ethylene-vinyl acetate copolymer TAISOX 7470M and the silane coupling agent.
Preferably, the filler is sericite powder.
By adopting the technical scheme, the sericite powder is arranged in a mutually parallel layer-by-layer mode, so that the waterproof and blocking composite material not only has an excellent waterproof and blocking effect, but also effectively blocks fine sand falling off from a sand layer, and improves the shear strength of the modified asphalt waterproof coiled material for roads and bridges.
In a second aspect, the application provides a preparation method of a modified asphalt waterproof roll for roads and bridges, which adopts the following technical scheme:
a preparation method of a modified asphalt waterproof coiled material for roads and bridges comprises the following steps:
s1, preparing an upper surface modified asphalt material;
s2, preparing a lower surface modified asphalt material;
s3, preparing the modified asphalt waterproof roll for roads and bridges: the modified asphalt waterproof roll for the roads and bridges is prepared by coating an upper surface modified asphalt material on the upper side of a base course layer to form an upper surface modified asphalt layer, coating a lower surface modified asphalt material on the lower side of the base course layer to form a lower surface modified asphalt layer, then coating sand on the upper surface modified asphalt layer to form a sand layer, coating a polyethylene film isolation film on the lower side of the lower surface modified asphalt layer to form an isolation layer, and cooling and shaping the isolation layer to obtain the modified asphalt waterproof roll for the roads and bridges.
By adopting the technical scheme, the preparation method of the modified asphalt waterproof roll for roads and bridges is simple, the waterproof effect of the modified asphalt waterproof roll for roads and bridges is good, and the construction is easy.
In summary, the present application has the following beneficial effects:
1. the asphalt modified by the ethylene-butyl acrylate copolymer and the ethylene-vinyl acetate copolymer is a novel modified asphalt material, and compared with styrene-butadiene-styrene block copolymer modified asphalt, the low-temperature flexibility and the shear strength of the modified asphalt waterproof coiled material for roads and bridges can be improved, the heat resistance and the water impermeability of the modified asphalt waterproof coiled material for roads and bridges can also be improved, the requirement on construction conditions is lower, and the impermeability after hot rolling is good; the anhydride modified esterified rosin contains non-crystalline resin containing acid radical functional group, has plasticity and coupling effect, can control effective molecular structure, increases heat resistance and processability of the modified asphalt waterproof coiled material for roads and bridges, and greatly reduces the harm caused by asphalt combustion during construction.
2. According to the application, the ethylene-butyl acrylate-glycidyl methacrylate terpolymer, the ethylene-butyl acrylate-maleic anhydride terpolymer and the ethylene-butyl acrylate bipolymer are compounded to form the ethylene-butyl acrylate copolymer, so that the shear strength of the modified asphalt waterproof coiled material for roads and bridges can be further improved.
3. According to the application, the styrene-isoprene-styrene block copolymer modified petroleum asphalt is adopted, under the combined action of polyethylene wax, organic silicon resin and octylphenol polyoxyethylene ether, the low-temperature flexibility of the modified asphalt waterproof coiled material for roads and bridges is improved, no crack exists at the temperature of minus 25 ℃ and minus 35 ℃, the water impermeability (0.9MPa/180min) and the impermeability after hot rolling of the modified asphalt waterproof coiled material for roads and bridges are improved, and the shear strength of the modified asphalt waterproof coiled material for roads and bridges is improved.
Detailed Description
The present application will be described in further detail with reference to examples.
The raw materials used in the present application are commercially available, and those not mentioned in the present application are purchased from national pharmaceutical group chemical agents limited, unless otherwise specified.
Preparation example
Preparation example of asphalt Material having modified Top surface
Preparation examples 1-14 provide a top surface modified asphalt material, and the following description will take preparation example 1 as an example.
The preparation method of the asphalt material with the modified upper surface provided by the preparation example 1 comprises the following steps:
uniformly mixing 6kg of asphalt, 1kg of ethylene-butyl acrylate copolymer and 0.5kg of ethylene-vinyl acetate copolymer, heating to 140 ℃, continuously stirring at a stirring speed of 300rpm, adding 0.5kg of anhydride modified esterified rosin while stirring, and continuously stirring for 40 min; continuously heating to 200 ℃, adding 0.2kg of silane coupling agent, uniformly stirring, adding 2.5kg of filler, and continuously stirring for 30min to obtain the asphalt material with the modified upper surface;
wherein the asphalt is 10# construction asphalt purchased from Heizanhao rubber chemical Co., Ltd;
the ethylene-butyl acrylate copolymer is an ethylene-butyl acrylate binary copolymer with the trade name of
35BA40, purchased from arkema, france;
the ethylene-vinyl acetate copolymer was sold under the brand name LG EVA EA28025, purchased from korean LG chemistry;
the model of the anhydride modified esterified rosin is RM-100 and is purchased from Taiwan Yuan good industry Co.Ltd;
the silane coupling agent is KH-570 which is purchased from the chemical industry Co., Ltd;
the filler is activated calcium carbonate with the mesh number of 325, and is purchased from Zhang family, Port, Changchang calcium carbonate Co.
Preparation examples 2 to 6, the same as preparation example 1, were different only in that: the types and the qualities of the upper surface modified asphalt materials are different, and the specific table is shown in table 1.
TABLE 1 kinds and qualities of surface-modified asphalt materials in preparation examples 1 to 6
Wherein the silane coupling agent KH-560 is purchased from Jinan boom chemical Co., Ltd;
the No. 70 asphalt was purchased from Luoyang Violet eastern petrochemical Co.
Preparation 7, like preparation 4, differs only in that: the ethylene-vinyl acetate copolymer was taistox 7470M, purchased from taiwan.
Preparation 8, like preparation 4, differs only in that: the ethylene-vinyl acetate copolymer was SEETEC EVA VA810, purchased from glad, korea.
Preparation 9, like preparation 7, differs only in that: the ethylene-butyl acrylate binary copolymer is
3427AC, purchased from Dow, USA.
Preparation 10, like preparation 7, differs only in that: the ethylene-butyl acrylate binary copolymer is
AC 34035, purchased from dow, usa.
Preparation 11, like preparation 9, differs only in that: the ethylene-butyl acrylate copolymer is ethylene-butyl acrylate binary copolymer
3427AC and ethylene-butyl acrylate-maleic anhydride terpolymer
3210 mass ratio of 1: 1, mixing; the ethylene-butyl acrylate-maleic anhydride terpolymer
3210 maleic anhydride content of 3.1 wt%, purchased from arkema, france.
Preparation 12, like preparation 11, differs only in that: the ethylene-butyl acrylate-maleic anhydride terpolymer is
4210 maleic anhydride content of 3.6 wt.% was purchased from arkema, france.
Preparation 13, like preparation 12, differs only in that: the ethylene-butyl acrylate copolymer is ethylene-butyl acrylate binary copolymer
3427AC ethylene-butyl acrylate-maleic anhydride terpolymer
4210 and ethylene-butyl acrylate-glycidyl methacrylate terpolymer
AS is added according to the mass ratio of 1: 1: 1, mixing; the ethylene-butyl acrylate-glycidyl methacrylate terpolymer
AS was purchased from dow, usa.
Preparation 14, like preparation 13, differs only in that: the filler is sericite powder with the mesh number of 325 and is purchased from a processing plant of Jiayuan mineral products in Lingshou county.
Comparative example for preparing asphalt material with modified upper surface
Comparative example 1 was prepared, the same as in preparation 1, except that: the ethylene-butyl acrylate copolymer was mass-replaced with the styrene-butadiene-styrene block copolymer LG SBS LG-512, purchased from korean LG chemistry.
Comparative example 2 was prepared, the same as in preparation 1, except that: the ethylene-vinyl acetate copolymer is replaced by a styrene-butadiene-styrene block copolymer LG SBS LG-512 in equal mass.
Comparative example 3 was prepared, the same as in preparation 1, except that: the mass of the anhydride modified esterified rosin is replaced by a styrene-butadiene-styrene block copolymer LG SBS LG-512.
Comparative example 4 was prepared, the same as in preparation 1, except that: the mass of the anhydride modified esterified rosin is replaced by C5 hydrogenated petroleum resin, and the C5 hydrogenated petroleum resin is purchased from Puyang Hengtai petrochemical company Limited.
Preparation example of asphalt Material having modified lower surface
Preparation examples 15-25 provide a bottom surface-modified asphalt material, and preparation 15 is described below as an example.
The preparation method of the lower surface modified asphalt material provided in preparation example 15 comprises the following steps:
uniformly mixing 6.7kg of petroleum asphalt, 1.5kg of styrene-isoprene-styrene block copolymer and 0.4kg of organic silicon resin, heating to 140 ℃, continuously stirring at the stirring speed of 300rpm, sequentially adding 0.1kg of octyl phenol polyoxyethylene ether and 0.3kg of polyethylene wax while stirring, and continuously stirring for 30min after the addition is finished; continuously heating to 230 ℃, adding 1kg of talcum powder, and continuously stirring for 60min to obtain a lower surface modified asphalt material;
wherein the petroleum asphalt is No. 90 petroleum asphalt purchased from Hebei blue-way traffic engineering Co., Ltd;
the styrene-isoprene-styrene block copolymer is
5517, a melt mass flow rate at 190 ℃ of 5.0kg of 20g/min having a styrene content of 15 wt% and purchased from Prunus salicina, Taiwan;
the organic silicon resin is Huate 1503 organic silicon resin which is purchased from Jinan Huate chemical Co., Ltd;
the octyl phenol polyoxyethylene ether is OP-10 and is purchased from Jinchangxin chemical technology Co., Ltd, Shandong;
the polyethylene wax is B-118, has a number average molecular weight of 3000-;
the talcum powder has the mesh number of 800 meshes and is purchased from Huixin mining processing factory in Ling shou county.
Preparations 16 to 18, the same as preparation 15, were different only in that: the types and the qualities of the lower surface modified asphalt materials are different, and are specifically shown in table 2.
TABLE 2 types and masses of surface-modified asphalt materials in preparation examples 15 to 18
Preparation 19, like preparation 18, differs only in that: the polyethylene wax is B-90, has a number average molecular weight of 2000-3000 and a softening point of 100-105 ℃, and is purchased from Hongkingyuan Kogyo Co., Ltd.
Preparation 20, like preparation 18, differs only in that: the polyethylene wax is B-80, has a number average molecular weight of 2000-3000 and a softening point of 90-95 ℃, and is purchased from Hongkingyuan Kogyo Co.
Preparation 21, the same as preparation 20, except that: the styrene-isoprene-styrene block copolymer is
5518, a melt mass flow rate at 190 ℃ of 5.0kg of 30g/min with a styrene content of 18 wt.% was purchased from Li Changrong, Taiwan, China.
Preparation 22, the same as preparation 20, except that: the styrene-isoprene-styrene block copolymer is
5516, having a styrene content of 16 wt% and a melt mass flow rate of 9g/min at 190 ℃ of 5.0kg, was purchased from Lee Liangrong, Taiwan, China.
Preparation 23, like preparation 15, differs only in that: the quality of the styrene-isoprene-styrene block copolymer is replaced by a styrene-butadiene-styrene block copolymer LG SBS LG-512.
Preparation 24, the same as preparation 15, except that: the polyethylene wax and the like are replaced by a styrene-butadiene-styrene block copolymer LG SBS LG-512.
Preparation 25, like preparation 15, differs only in that: the octyl phenol polyoxyethylene ether and the like are replaced by lauryl phenol polyoxyethylene ether with the model MOA-3, and are purchased from south China Tony Tai chemical Co.
Examples
Examples 1 to 24 provide a modified asphalt waterproofing membrane for roads and bridges, and the following description will be made by taking example 1 as an example.
The modified asphalt waterproof roll for roads and bridges provided by the embodiment 1 comprises the following preparation steps:
coating an upper surface modified asphalt material on the upper side of the base course layer to form an upper surface modified asphalt layer (the thickness of the upper surface modified asphalt layer is 1.4mm), coating a lower surface modified asphalt material on the lower side of the base course layer to form a lower surface modified asphalt layer (the thickness of the lower surface modified asphalt layer is 1mm), then coating sand on the upper surface modified asphalt layer to form a sand layer (the thickness of the sand layer is 0.2mm), coating a polyethylene film isolation film on the lower side of the lower surface modified asphalt layer to form an isolation layer (the thickness of the isolation layer is 0.4mm), and cooling and shaping to obtain the modified asphalt waterproof coiled material for roads and bridges;
wherein the upper surface modified asphalt material is obtained from preparation example 1;
the base course layer consists of polyester base cloth, the polyester base cloth is purchased from Weifang Xuxin waterproof material Co., Ltd, and the thickness of the base course layer is 0.5 mm;
the lower surface modified asphalt material is obtained from preparation example 15;
the mesh number of the sand is 60 meshes, and the sand is purchased from Wuxi Cihuitong mortar science and technology Limited company;
the polyethylene film separator was a product number dnz062715, purchased from tai an dono engineering materials, inc.
Examples 2-14, like example 1, differ only in that: the sources of the upper surface modified asphalt materials are different, and are specifically shown in table 3.
Table 3 sources of surface modified asphalt materials on examples 1-14
Examples 15-21, like example 14, differ only in that: the sources of the lower surface modified asphalt materials are different, and the specific sources are shown in table 4.
Table 4 examples 14-21 sources of surface modified asphalt materials
| Examples | Example 14 | Example 15 | Example 16 | Example 17 |
| Source of lower surface modified asphalt | Preparation example 15 | Preparation example 16 | Preparation example 17 | Preparation example 18 |
| Examples | Example 18 | Example 19 | Example 20 | Example 21 |
| Source of lower surface modified asphalt | Preparation example 19 | Preparation example 20 | Preparation example 21 | Preparation example 22 |
Examples 22-24, like example 1, differ only in that: the sources of the lower surface modified asphalt materials are different, and the specific sources are shown in table 5.
TABLE 5 examples 1, 22-24 sources of surface modified asphalt materials
| Examples | Example 1 | Example 22 | Example 23 | Example 24 |
| Source of lower surface modified asphalt | Preparation example 15 | Preparation example 23 | Preparation example 24 | Preparation example 25 |
Comparative example
Comparative examples 1 to 4, like example 1, differ only in that: the sources of the upper surface modified asphalt materials are different, and are shown in table 6.
TABLE 6 sources of surface modified asphalt materials on example 1, comparative examples 1-4
Performance test the following performance test was performed on the modified asphalt waterproofing membranes for roads and bridges provided in examples 1 to 24 and comparative examples 1 to 4 of the present application.
1. Low-temperature flexibility: the modified asphalt waterproofing rolls for roads and bridges provided in examples 1 to 24 and comparative examples 1 to 4 having a bending diameter of 30mm were subjected to a low temperature flexibility test in accordance with the procedure of 5.3.6 in GB/T18242-2000, and the presence or absence of cracks at-25 ℃ and-35 ℃ was observed, and the test results are shown in Table 7.
2. Heat resistance: the modified asphalt waterproofing membranes for roads and bridges provided in examples 1 to 24 and comparative examples 1 to 4 were subjected to a heat resistance test according to the procedure of 5.3.5 in GB/T18242-2000, and the sliding and flowing of the upper surface modified asphalt layer and the lower surface modified asphalt layer with respect to the base layer and the dropping of asphalt at 115 ℃ were observed, and the test results are shown in Table 7.
TABLE 7 test data for Low temperature flexibility and Heat resistance
3. Water impermeability: the modified asphalt waterproofing membranes for roads and bridges provided by examples 1 to 24 and comparative examples 1 to 4 were tested for water impermeability at 0.6MPa/120min and 0.9MPa/180min according to GB/T18242-2008, and the test results are shown in Table 8.
4. Shear strength: a cement concrete test piece with the strength grade of C30 was prepared according to the requirements of JGJ/T55-1996, the thickness was 45mm, the length and the width were 100mm, the maintenance was carried out for 21d for standby, the modified asphalt waterproofing rolls for roads and bridges and the prepared test pieces provided in examples 1-24 and comparative examples 1-4 were treated according to 5.16 in JC/T974-.
5. Impermeability after hot rolling: a cement concrete test piece with the strength grade of C30 is prepared according to the requirements of JGJ/T55-1996, the thickness is 45mm, the length and the width are both 100mm, the maintenance is carried out for 21d for standby, the modified asphalt waterproof coiled materials for roads and bridges and the prepared test pieces provided by the examples 1-24 and the comparative examples 1-4 are treated according to 5.16 in JC/T974-.
TABLE 8 test data for impermeability, shear strength, and resistance to post-hot rolling
The present application is described in detail below with reference to the test data provided in tables 7 and 8.
As can be seen from examples 1-6 and comparative examples 1-4 of the application, the modified asphalt waterproof roll for roads and bridges prepared by the application has excellent mechanical properties and construction performance, good low-temperature flexibility (no crack at minus 35 ℃), good heat resistance (no sliding, no flowing and no dripping of the upper surface modified asphalt layer and the lower surface modified asphalt layer at 115 ℃) relative to the tire base layer, good water impermeability (0.9MPa/180min is impermeable), the shear strength is not lower than 0.26MPa, the impermeability is good after hot rolling (0.3MPa/60min is impermeable), and the requirements of the modified asphalt waterproof roll for roads and bridges are completely met. As can be seen from the application example 1 and the comparative example 1, the ethylene-butyl acrylate copolymer replaces SBS, so that the mechanical property and the construction property of the modified asphalt waterproof roll for roads and bridges are improved; as can be seen from the application example 1 and the comparative example 2, the ethylene-vinyl acetate copolymer replaces SBS, so that the mechanical property and the construction property of the modified asphalt waterproof coiled material for roads and bridges are improved; from the application example 1 and the comparative example 3, the acid anhydride modified esterified rosin replaces SBS, and the mechanical property and the construction property of the modified asphalt waterproof roll for roads and bridges are improved. As can be seen from the example 1 and the comparative example 4, compared with the C5 hydrogenated petroleum resin, the anhydride modified esterified rosin not only has the tackifying effect, but also contains the non-crystalline acid radical functional group-containing resin, has the plasticity and the coupling effect, can control the effective molecular structure, and increases the mechanical property and the workability of the modified asphalt waterproof coiled material for roads and bridges.
From examples 4, 7 to 8 of the present application, it is understood that the shear strength of the ethylene-vinyl acetate copolymer TAISOX 7470M is higher than that of SEETEC EVA VA810, and the shear strength of the ethylene-vinyl acetate copolymer TAISOX 7470M is higher than that of LG EVA EA 28025.
From examples 7 and 9 to 13 of the present application, it is understood that an ethylene-butyl acrylate-glycidyl methacrylate terpolymer, an ethylene-butyl acrylate-maleic anhydride terpolymer containing 3.6wt% of maleic anhydride, and an ethylene-butyl acrylate copolymer
3427 the shear strength of the modified asphalt waterproof coiled material for roads and bridges is further improved by compounding the three components.
From examples 13 to 14 of the present application, it is understood that sericite powder can further improve the shear strength of the modified asphalt waterproofing membrane for roads and bridges compared with activated calcium carbonate.
From the examples 1 and 23 to 25, it can be seen that the styrene-isoprene-styrene block copolymer modified petroleum asphalt improves the low-temperature flexibility of the modified asphalt waterproof roll for roads and bridges under the combined action of the polyethylene wax, the organic silicon resin and the octylphenol polyoxyethylene ether, has no cracks at-25 ℃ and-35 ℃, improves the water impermeability (0.9MPa/180min) and the impermeability after hot rolling of the modified asphalt waterproof roll for roads and bridges, and improves the shear strength of the modified asphalt waterproof roll for roads and bridges.
As can be seen from examples 18-20 herein, polyethylene wax B-80 corresponds to a higher shear strength than polyethylene B-90, and polyethylene wax B-80 corresponds to a higher shear strength than polyethylene B-118. The polyethylene wax B-80 has low number average molecular weight and softening point, so that the viscosity of the lower surface modified asphalt material can be improved, the talcum powder is prevented from being adhered or precipitated, and the shear strength of the modified asphalt waterproof roll for roads and bridges is further improved.
From examples 20 to 22 of the present application, it can be seen that styrene-isoprene-styrene block copolymers
5518 a shear strength higher than
5517 a shear strength corresponding to the strength of the steel,
5518 higher shear strength
5516 a corresponding shear strength. This is because
5516 the melt mass flow rate is low, which is not favorable for uniformly dispersing the talcum powder in the lower surface modified asphalt material
5517 a processThe styrene content is low, and the shear strength of the modified asphalt waterproof coiled material for roads and bridges can be directly reduced.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (9)
1. The modified asphalt waterproof coiled material for roads and bridges comprises a sand layer, an upper surface modified asphalt layer, a base course layer, a lower surface modified asphalt layer and an isolation layer, and is characterized in that the preparation raw materials of the upper surface modified asphalt layer comprise, by weight, 60-80 parts of asphalt, 10-20 parts of ethylene-butyl acrylate copolymer, 5-15 parts of ethylene-vinyl acetate copolymer, 5-15 parts of anhydride modified esterified rosin, 25-35 parts of filler and 2-5 parts of silane coupling agent;
the preparation raw materials of the lower surface modified asphalt layer comprise, by mass, 15-25% of styrene-isoprene-styrene block copolymer, 3-5% of polyethylene wax, 1-2% of octylphenol polyoxyethylene ether, 10-20% of talcum powder, 4-8% of organic silicon resin and the balance of petroleum asphalt.
2. The modified asphalt waterproofing membrane for roads and bridges of claim 1, wherein the polyethylene wax has a number average molecular weight of 2000-3000 and a softening point of 90-95 ℃.
3. The modified asphalt waterproofing membrane for roads and bridges of claim 1 or 2, wherein the styrene-isoprene-styrene block copolymer has a styrene content of 16 to 18wt% and a melt mass flow rate of 20 to 30g/min at 190 ℃ under 5.0 kg.
4. The modified asphalt waterproofing membrane for roads and bridges of claim 1, wherein the ethylene-butyl acrylate copolymer is selected from one or more of ethylene-butyl acrylate-glycidyl methacrylate terpolymer, ethylene-butyl acrylate-maleic anhydride terpolymer and ethylene-butyl acrylate binary copolymer.
5. The modified asphalt waterproof roll for roads and bridges of claim 4, wherein the ethylene-butyl acrylate-maleic anhydride terpolymer contains maleic anhydride in an amount of 3.1 to 3.6 wt%.
6. The modified asphalt waterproof roll for roads and bridges of claim 4, wherein the ethylene-butyl acrylate binary copolymer is Elvaloy®3427AC and/or Elvaloy® AC 34035。
7. The modified asphalt waterproofing membrane for roads and bridges of claim 1, wherein the ethylene-vinyl acetate copolymer is selected from one or more of TAISOX 7470M, SEETEC EVA VA810 and LG EVA EA 28025.
8. The modified asphalt waterproofing membrane for roads and bridges of claim 1, wherein the filler is sericite powder.
9. The method for preparing the modified asphalt waterproof roll for roads and bridges as claimed in any one of claims 1 to 8, which is characterized by comprising the following steps:
s1, preparing an upper surface modified asphalt material;
s2, preparing a lower surface modified asphalt material;
s3, preparing the modified asphalt waterproof roll for roads and bridges: the modified asphalt waterproof roll for the roads and bridges is prepared by coating an upper surface modified asphalt material on the upper side of a base course layer to form an upper surface modified asphalt layer, coating a lower surface modified asphalt material on the lower side of the base course layer to form a lower surface modified asphalt layer, then coating sand on the upper surface modified asphalt layer to form a sand layer, coating a polyethylene film isolation film on the lower side of the lower surface modified asphalt layer to form an isolation layer, and cooling and shaping the isolation layer to obtain the modified asphalt waterproof roll for the roads and bridges.
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| CN106739310A (en) * | 2016-12-07 | 2017-05-31 | 上海东方雨虹防水技术有限责任公司 | A kind of bridge polymer modified bituminous waterproof sheet material and preparation method thereof |
| CN107828357A (en) * | 2017-11-24 | 2018-03-23 | 桂林市和鑫防水装饰材料有限公司 | Adhesive for waterproof roll and preparation method thereof |
| CN107984823A (en) * | 2017-11-21 | 2018-05-04 | 广西武宣金牌防水材料科技有限公司 | Self-adhering-type modified asphalt waterproof coiled material and its production method |
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| US8784554B2 (en) * | 2009-03-08 | 2014-07-22 | Premnathan Naidoo | Asphalt modifiers, methods of modifying asphalt, asphalt compositions and methods of making |
| FR3013053B1 (en) * | 2013-11-14 | 2015-12-25 | Total Marketing Services | BITUMEN COMPOSITION / POLYMER WITH IMPROVED COLD MECHANICAL PROPERTIES |
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| CN106739310A (en) * | 2016-12-07 | 2017-05-31 | 上海东方雨虹防水技术有限责任公司 | A kind of bridge polymer modified bituminous waterproof sheet material and preparation method thereof |
| CN107984823A (en) * | 2017-11-21 | 2018-05-04 | 广西武宣金牌防水材料科技有限公司 | Self-adhering-type modified asphalt waterproof coiled material and its production method |
| CN107828357A (en) * | 2017-11-24 | 2018-03-23 | 桂林市和鑫防水装饰材料有限公司 | Adhesive for waterproof roll and preparation method thereof |
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