CN114940865A - Crosslinkable quick-setting rubber asphalt waterproof coating and preparation method thereof - Google Patents
Crosslinkable quick-setting rubber asphalt waterproof coating and preparation method thereof Download PDFInfo
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- CN114940865A CN114940865A CN202210556907.0A CN202210556907A CN114940865A CN 114940865 A CN114940865 A CN 114940865A CN 202210556907 A CN202210556907 A CN 202210556907A CN 114940865 A CN114940865 A CN 114940865A
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- 239000010426 asphalt Substances 0.000 title claims abstract description 95
- 229920001971 elastomer Polymers 0.000 title claims abstract description 78
- 239000005060 rubber Substances 0.000 title claims abstract description 78
- 238000000576 coating method Methods 0.000 title claims abstract description 60
- 239000011248 coating agent Substances 0.000 title claims abstract description 58
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 239000000839 emulsion Substances 0.000 claims abstract description 23
- 239000003607 modifier Substances 0.000 claims abstract description 15
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910001622 calcium bromide Inorganic materials 0.000 claims abstract description 14
- WGEFECGEFUFIQW-UHFFFAOYSA-L calcium dibromide Chemical compound [Ca+2].[Br-].[Br-] WGEFECGEFUFIQW-UHFFFAOYSA-L 0.000 claims abstract description 14
- 239000004567 concrete Substances 0.000 claims abstract description 14
- HYHCSLBZRBJJCH-UHFFFAOYSA-N sodium polysulfide Chemical compound [Na+].S HYHCSLBZRBJJCH-UHFFFAOYSA-N 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000011259 mixed solution Substances 0.000 claims abstract description 11
- 239000003381 stabilizer Substances 0.000 claims abstract description 9
- 239000012874 anionic emulsifier Substances 0.000 claims abstract description 8
- 239000011159 matrix material Substances 0.000 claims abstract description 8
- 238000002156 mixing Methods 0.000 claims abstract description 8
- 239000002904 solvent Substances 0.000 claims abstract description 6
- 239000000084 colloidal system Substances 0.000 claims abstract description 4
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 125000000129 anionic group Chemical group 0.000 claims abstract description 3
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 3
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 3
- 239000004816 latex Substances 0.000 claims description 31
- 229920000126 latex Polymers 0.000 claims description 31
- 229920002635 polyurethane Polymers 0.000 claims description 26
- 239000004814 polyurethane Substances 0.000 claims description 26
- 229920001084 poly(chloroprene) Polymers 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 10
- 238000005507 spraying Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 8
- 239000007921 spray Substances 0.000 claims description 8
- 238000004078 waterproofing Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 6
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims description 5
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims description 5
- 239000002518 antifoaming agent Substances 0.000 claims description 5
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 239000000243 solution Substances 0.000 claims description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 3
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 claims description 3
- 229920002678 cellulose Polymers 0.000 claims description 3
- 239000001913 cellulose Substances 0.000 claims description 3
- 239000001863 hydroxypropyl cellulose Substances 0.000 claims description 3
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 claims description 3
- 229920002689 polyvinyl acetate Polymers 0.000 claims description 3
- 239000011118 polyvinyl acetate Substances 0.000 claims description 3
- 229920000181 Ethylene propylene rubber Polymers 0.000 claims description 2
- 239000005062 Polybutadiene Substances 0.000 claims description 2
- 229920002857 polybutadiene Polymers 0.000 claims description 2
- 239000003973 paint Substances 0.000 claims 1
- 239000011387 rubberized asphalt concrete Substances 0.000 claims 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 3
- 238000004132 cross linking Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 5
- -1 sulfate radicals Chemical class 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 4
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 239000003431 cross linking reagent Substances 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- HVVWZTWDBSEWIH-UHFFFAOYSA-N [2-(hydroxymethyl)-3-prop-2-enoyloxy-2-(prop-2-enoyloxymethyl)propyl] prop-2-enoate Chemical compound C=CC(=O)OCC(CO)(COC(=O)C=C)COC(=O)C=C HVVWZTWDBSEWIH-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000005465 channeling Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 150000002430 hydrocarbons Chemical group 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 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
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 125000004434 sulfur atom Chemical group 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 239000004636 vulcanized rubber Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D195/00—Coating compositions based on bituminous materials, e.g. asphalt, tar, pitch
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- C—CHEMISTRY; METALLURGY
- 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
- C08K3/16—Halogen-containing compounds
- C08K2003/162—Calcium, strontium or barium halides, e.g. calcium, strontium or barium chloride
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3009—Sulfides
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a crosslinkable quick-setting rubber asphalt waterproof coating and a preparation method thereof, wherein the waterproof coating comprises a component A and a component B, wherein the component A comprises the following components in parts by weight: matrix asphalt: 20-60 parts; anionic emulsifiers: 10-30 parts; modifying agent: 20-40 parts of a solvent; rubber emulsion: 10-20 parts; a stabilizer: 1-3 parts; acrylic emulsion: 10-20 parts; the component B comprises: pentaerythritol: 10-20 parts; sodium polysulfide: 5-15 parts of a solvent; calcium bromide: 5-10 parts; water: 50-150 parts. The waterproof coating is prepared by mixing an anionic emulsifier, a stabilizer, a modifier, a rubber emulsion and an acrylic emulsion to obtain a mixed solution, and heating the matrix asphalt at a high temperature and adding the mixed solution into a colloid mill to obtain a component A; mixing sodium polysulfide, pentaerythritol, calcium bromide and water to obtain a component B; the component A and the component B are sprayed on the base layer concrete under a high-pressure state to form the crosslinkable quick-setting rubber asphalt waterproof coating. The prepared waterproof coating has high mechanical strength and strong bonding force with a base layer, and cannot generate rust on the base layer.
Description
Technical Field
The invention relates to the field of waterproof coatings, and particularly relates to a crosslinkable quick-setting rubber asphalt waterproof coating and a preparation method thereof.
Background
In recent years, with the rapid development of the building industry, the application field of the waterproof coating is widened year by year, for example, the waterproof coating is applied to foundation waterproofing of underground buildings, roof waterproofing, subway waterproofing, waterproofing of water treatment plants and the like, and is gradually applied to large-scale municipal engineering from single floor, common roof waterproofing, tunnel engineering and the like. Therefore, the demand for waterproof coatings is also increasing. The current commonly used spray-type rubber asphalt waterproof coating has the high-quality characteristics of weather resistance, acid resistance, deformation resistance and the like, so the spray-type rubber asphalt waterproof coating is widely used in the field of buildings.
However, the mechanical strength of the rubber asphalt waterproof coating prepared by the currently reported preparation method is not high, most of the components of the waterproof coating contain chloride ions and sulfate ions, when the waterproof coating is sprayed on the base concrete, the setting speed is low, the drying time is long, and the residual sulfate ions and chloride ions can corrode the base concrete, so that the application range of the rubber asphalt waterproof coating is limited.
Therefore, a crosslinkable quick-setting rubber asphalt waterproof coating with high mechanical strength and no corrosion and a preparation method thereof are needed.
Disclosure of Invention
The invention aims to solve the problems that the existing waterproof coating has low mechanical strength and insufficient adhesive force with a base layer, and can cause the corrosion of base layer concrete.
In order to achieve the purpose, the invention provides a crosslinkable quick-setting rubber asphalt waterproof coating, which comprises a component A and a component B, wherein the component A comprises the following components in parts by weight: the component B is 8: 1-10: 1; wherein, the component A comprises: matrix asphalt: 20-60 parts; anionic emulsifiers: 10-30 parts; modifying agent: 20-40 parts of a solvent; rubber emulsion: 10-20 parts; a stabilizer: 1-3 parts; acrylic emulsion: 10-20 parts; the component B comprises: pentaerythritol: 10-20 parts; sodium polysulfide: 5-15 parts of a solvent; calcium bromide: 5-10 parts; water: 50-150 parts.
Preferably, the base asphalt is SK-90 asphalt.
Preferably, the modifier comprises any one or the combination of any two or more of chloroprene rubber, ethylene propylene rubber and butadiene rubber.
Preferably, the rubber emulsion comprises any one of polyurethane latex, acrylate latex and polyvinyl acetate latex or the combination of any two or more of the polyurethane latex, the acrylate latex and the polyvinyl acetate latex.
Preferably, the stabilizer comprises any one of hydroxyethyl cellulose, hydroxypropyl cellulose and polyanionic cellulose or a combination of any two or more of the hydroxyethyl cellulose, the hydroxypropyl cellulose and the polyanionic cellulose.
Preferably, the component A also comprises an antifoaming agent.
The invention also provides a preparation method of the crosslinkable quick-setting rubber asphalt waterproof coating, which comprises the following steps:
the method comprises the following steps: preparing a component A: uniformly mixing 10-30 parts of an anionic emulsifier, 1-3 parts of a stabilizer, 20-40 parts of a modifier, 10-20 parts of a rubber emulsion and 10-20 parts of an acrylic emulsion to form a mixed solution, heating 20-60 parts of matrix asphalt to 100-105 ℃ at a high temperature, and adding the mixture and the mixed solution into a colloid mill to obtain a component A; step two: preparing a component B; uniformly mixing 5-15 parts of sodium polysulfide, 10-20 parts of pentaerythritol, 5-10 parts of calcium bromide and 50-150 parts of water to prepare a solution, thereby obtaining a component B; step three: adding the component A and the component B into a spray gun, atomizing in the spray gun, spraying out through a nozzle of the spray gun, and spraying the component A and the component B after cross collision to the base concrete in the spraying process under a high pressure state to form the crosslinkable quick-setting rubber asphalt waterproof coating.
Preferably, in the first step, a defoaming agent is further added to the mixed solution.
Preferably, in the third step, the high pressure is 5MPa to 8 MPa.
The invention has the beneficial effects that:
(1) the component A comprises matrix asphalt, an anionic emulsifier, a modifier chloroprene rubber, rubber emulsion polyurethane latex, a stabilizer and acrylic emulsion, wherein when the component A is prepared, the anionic emulsifier firstly emulsifies the matrix asphalt to obtain emulsified asphalt, the chloroprene rubber and the emulsified asphalt have good compatibility and can be fully mixed with the emulsified asphalt, the acrylic emulsion can reduce the average particle size of the emulsified asphalt, and the polyurethane latex can improve the stability of the emulsified asphalt; when chloroprene rubber, polyurethane latex and acrylic emulsion are added to react to form rubber asphalt, various properties of the rubber asphalt can be improved, so that the mechanical property, viscosity, tensile strength and other properties of the rubber asphalt are improved, pentaerythritol in the component B can also be used as a cross-linking agent of the polyurethane latex, the polyurethane latex contains branched chains, and the cross-linking of the rubber asphalt can be promoted after the component A and the component B are mixed together;
(2) the component B plays a role of a demulsifier in the waterproof coating, and the component B in the invention adopts sodium polysulfide as an oxidant, so that the problem that the concrete is rusted by residues of sulfate radicals and chloride ions in the traditional demulsifier is avoided, and the sodium polysulfide contains a special-S-S-bond long chain similar to an-O-O-bond in hydrogen peroxide, so that the crosslinking of rubber asphalt can be promoted to form a compact net structure;
(3) the calcium bromide aqueous solution can promote the demulsification speed of the emulsified asphalt in the component A, so that the rubber asphalt can be higher in adhesion with the base concrete, and after the rubber asphalt is quickly coagulated into a film, a high-elastic waterproof coating can be formed on the surface of the base concrete;
(4) when in use, the components are sprayed on the base concrete, the spraying technology is adopted, the efficiency is high, and seamless connection and water channeling prevention can be realized.
Detailed Description
The technical solution of the present invention is further described below with reference to examples.
The invention provides a crosslinkable quick-setting rubber asphalt waterproof coating which consists of a component A and a component B
In the present invention, SK-90 asphalt (available from SK in Korea) was used as the base asphalt. When the SK-90 asphalt is emulsified, the particles are uniform and the stability is good.
According to the invention, the modifier is chloroprene rubber which has a strong bonding capability, and can change the properties of air tightness, low-temperature flexibility, chemical corrosion resistance, light resistance, ozone resistance and the like of a mixture of the chloroprene rubber and the rubber asphalt when added into the rubber asphalt, so that the chloroprene rubber is a good modifier for the rubber asphalt.
In the invention, the component A contains polyurethane latex, so that the stability of the rubber asphalt can be improved. The polyurethane is obtained by the polycondensation reaction of polyether and isocyanate, belongs to an environment-friendly high-molecular polymer elastic waterproof material, is non-toxic and tasteless, has good bonding and impermeability, has strong adhesion to mortar cement-based stone surfaces, stone materials, metal products, has stable chemical properties, can stand the irradiation of sunlight for a long time, has high strength, large elongation, good elasticity and good waterproof effect, and therefore, the rubber asphalt formed by adding the polyurethane latex also has the properties.
In the invention, the component A contains acrylic emulsion, the component B contains pentaerythritol, the pentaerythritol and the acrylic emulsion form acrylic ester, and the molecular structure of the acrylic ester has regular long chains, so that the properties of cold resistance, low-temperature flexibility, oil resistance and the like of rubber can be changed, the average particle size of emulsified asphalt can be reduced, and meanwhile, the pentaerythritol can also be used as a cross-linking agent of polyurethane latex to promote the cross-linking of rubber asphalt.
In the invention, the component B contains sodium polysulfide which is an oxidant and has a special-S-S-bond long chain similar to a-O-O-bond in hydrogen peroxide, so that the crosslinking of the rubber asphalt can be promoted to form a compact network structure. The rubber asphalt is a linear macromolecule, one H of carbon atoms on one main chain of the macromolecule is replaced by S, and one H can be replaced on the other main chain because S can form 2 covalent bonds, so that the linear shape becomes a body shape, similar to the organization of lines into a network, but the sizes of pores are different. During vulcanization, S atoms form short chains with different lengths to form cross-linking between adjacent hydrocarbon chains, and after vulcanized rubber is stressed, the chains are straightened, but cannot slide relative to each other due to cross-linking, and after the tension force is removed, the chains are curled again to restore the original shape. It is the presence of S in sodium polysulfide that makes the linear polymer main chains intertwine and connect with each other, thereby forming a three-dimensional network-like structure.
According to the invention, calcium bromide is creatively added into the component B, the anionic emulsifier belongs to a slow-breaking demulsification type, but in the process of preparing the rubber asphalt, the demulsification speed is too slow, so that the emulsified asphalt is quickly condensed and formed on the surface of a base layer, the penetration effect of the emulsified asphalt is poor, and the demulsification process can be accelerated and the penetration of the emulsified asphalt can be promoted by using the calcium bromide aqueous solution. In the traditional rubber asphalt waterproof coating, the component B which has the demulsification effect is generally a compound containing chlorine, namely sulfate and the like, and the residual chloride ions and sulfate ions can rust the base layer concrete for buildings, so that the bromide of the same family as chlorine is used for substitution, and the property of the calcium bromide is similar to that of the chloride and sulfate ions, but the calcium bromide can not rust the base layer concrete for buildings.
Example 1:
the invention provides a crosslinkable quick-setting rubber asphalt waterproof coating, which comprises a component A and a component B, wherein the components and parts by weight in the component A are shown in table 1, the components and parts by weight in the component B are shown in table 2, and the component A comprises the following components in parts by weight: the component B is 8: 1-10: 1. In this example, component a: and the component B is 9:1 in volume ratio.
The invention provides a preparation method of a crosslinkable quick-setting rubber asphalt waterproof coating, which comprises the following steps:
step one, preparing a component A: uniformly mixing 30 parts of an anionic emulsifier E205, 2 parts of hydroxyethyl cellulose, 0 part of chloroprene rubber, 0.01 part of a defoaming agent, 0 part of polyurethane latex and 15 parts of acrylic emulsion to form a mixed solution, heating 60 parts of SK-90 asphalt to 100-105 ℃ at high temperature, and adding the mixed solution and the mixed solution into a colloid mill to obtain a component A;
step two, preparing a component B: uniformly mixing 10 parts of sodium polysulfide, 15 parts of pentaerythritol, 10 parts of calcium bromide and 150 parts of water to prepare a solution, thereby obtaining a component B;
and step three, adding the component A and the component B into a spray gun according to the volume ratio of 9:1, setting the high pressure between 5Mpa and 8Mpa, spraying the components in an atomized state through a nozzle of the spray gun under the high pressure, and spraying the components A and B onto the base layer concrete after the components A and B are in cross collision in the spraying process to form the crosslinkable quick-setting rubber asphalt waterproof coating.
Table 1: ingredient list of A component (in parts by weight)
Table 2: ingredient table of B component (in parts by weight)
| Composition (I) | Sodium polysulfide | Pentaerythritol | Calcium bromide | Water (W) |
| Parts by weight | 10 | 15 | 10 | 150 |
Example 2:
the invention provides a crosslinkable quick-setting rubber asphalt waterproof coating, which comprises a component A and a component B, wherein the components and parts by weight in the component A are shown in table 1, the components and parts by weight in the component B are shown in table 2, and the component A comprises the following components in parts by weight: the component B is 8: 1-10: 1. In this example, component a: and the component B is 9:1 in volume ratio.
In the preparation method of the crosslinkable quick-setting rubber asphalt waterproof coating provided by the invention, 20 parts of chloroprene rubber is added when the component A is prepared, and the rest steps are the same as those in the example 1.
Example 3:
the invention provides a crosslinkable quick-setting rubber asphalt waterproof coating, which comprises a component A and a component B, wherein the components and parts by weight in the component A are shown in table 1, the components and parts by weight in the component B are shown in table 2, and the component A comprises the following components in parts by weight: the component B is 8: 1-10: 1. In this example, component a: and the component B is 9:1 in volume ratio.
In the preparation method of the crosslinkable quick-setting rubber asphalt waterproof coating provided by the invention, 40 parts of chloroprene rubber is added when the component A is prepared, and the rest steps are the same as those in the example 1.
Example 4:
the invention provides a crosslinkable quick-setting rubber asphalt waterproof coating, which comprises a component A and a component B, wherein the components and parts by weight in the component A are shown in table 1, the components and parts by weight in the component B are shown in table 2, and the component A comprises the following components in parts by weight: the component B is 8: 1-10: 1. In this example, component a: and the component B is 9:1 in volume ratio.
In the preparation method of the crosslinkable quick-setting rubber asphalt waterproof coating provided by the invention, 10 parts of polyurethane latex is added when the component A is prepared, and the rest steps are the same as those in the example 1.
Example 5:
the invention provides a crosslinkable quick-setting rubber asphalt waterproof coating, which comprises a component A and a component B, wherein the components and the parts by weight of the component A are shown in a table 1, the components and the parts by weight of the component B are shown in a table 2, and the components A are as follows: the component B is 8: 1-10: 1. In this example, component a: and the component B is 9:1 in volume ratio.
In the preparation method of the crosslinkable quick-setting rubber asphalt waterproof coating, 10 parts of polyurethane latex and 20 parts of chloroprene rubber are added when the component A is prepared, and the rest steps are the same as those in the example 1.
Example 6:
the invention provides a crosslinkable quick-setting rubber asphalt waterproof coating, which comprises a component A and a component B, wherein the components and parts by weight in the component A are shown in table 1, the components and parts by weight in the component B are shown in table 2, and the component A comprises the following components in parts by weight: the component B is 8: 1-10: 1. In this example, component a: and the component B is 9:1 in volume ratio.
In the preparation method of the crosslinkable quick-setting rubber asphalt waterproof coating, 10 parts of polyurethane latex and 40 parts of chloroprene rubber are added when the component A is prepared, and the rest steps are the same as those in the example 1.
Example 7:
the invention provides a crosslinkable quick-setting rubber asphalt waterproof coating, which comprises a component A and a component B, wherein the components and parts by weight in the component A are shown in table 1, the components and parts by weight in the component B are shown in table 2, and the component A comprises the following components in parts by weight: the component B is 8: 1-10: 1. In this example, component a: and the component B is 9:1 in volume ratio.
In the preparation method of the crosslinkable quick-setting rubber asphalt waterproof coating provided by the invention, 15 parts of polyurethane latex and 0 part of chloroprene rubber are added when the component A is prepared, and the rest steps are the same as those in the example 1.
Example 8:
the invention provides a crosslinkable quick-setting rubber asphalt waterproof coating, which comprises a component A and a component B, wherein the components and parts by weight in the component A are shown in table 1, the components and parts by weight in the component B are shown in table 2, and the component A comprises the following components in parts by weight: the component B is 8: 1-10: 1. In this example, component a: and the component B is 9:1 in volume ratio.
In the preparation method of the crosslinkable quick-setting rubber asphalt waterproof coating, 15 parts of polyurethane latex and 20 parts of chloroprene rubber are added when the component A is prepared, and the rest steps are the same as those in the example 1.
Example 9:
the invention provides a crosslinkable quick-setting rubber asphalt waterproof coating, which comprises a component A and a component B, wherein the components and parts by weight in the component A are shown in table 1, the components and parts by weight in the component B are shown in table 2, and the component A comprises the following components in parts by weight: the component B is 8: 1-10: 1. In this example, component a: and the component B is 9:1 in volume ratio.
In the preparation method of the crosslinkable quick-setting rubber asphalt waterproof coating, 15 parts of polyurethane latex and 40 parts of chloroprene rubber are added when the component A is prepared, and the rest steps are the same as those in the example 1.
According to the test method specified in the national standard GB/T16777-.
The experimental results are shown in table 3, (1) according to the experimental results of example 1, example 4 and example 7, under the condition that the other components are the same, the modifier chloroprene rubber is not added, and the crosslinkable quick-setting rubber asphalt waterproof coating prepared by the method is not qualified in the water impermeability and low-temperature flexibility experiments; (2) according to the embodiment 2 and the embodiment 3, when the addition amount of the polyurethane latex is 0 part and the modifier chloroprene rubber is 20 parts and 40 parts respectively, the tensile strength is 0.9MPa and 1.1MPa respectively, and the elongation at break is 1387 percent and 1475 percent respectively; according to the embodiment 5 and the embodiment 6, when the adding amount of the polyurethane latex is 10 parts and the adding amount of the modifier chloroprene rubber is 20 parts and 40 parts respectively, the tensile strength is 1.3MPa and 1.8MPa respectively, and the elongation at break is 1497 percent and 1563 percent respectively; according to the embodiment 8 and the embodiment 9, when the addition amount of the polyurethane latex is 15 parts and the addition amount of the modifier chloroprene rubber is 20 parts and 40 parts respectively, the tensile strength is 1.9Mpa and 2.8Mpa respectively, and the elongation at break is 1643 percent and 1809 percent respectively, which shows that the performance of the crosslinkable quick-setting rubber asphalt waterproof coating can be improved to a certain extent with the addition of the polyurethane latex, but the effect is good without adding the modifier chloroprene rubber; (3) according to the embodiment 5, the embodiment 6, the embodiment 8 and the embodiment 9, the polyurethane latex and the modifier chloroprene rubber are mixed for use, the effect is better than that of the two single-use, and the indexes of the tensile strength, the elongation at break, the water impermeability and the low-temperature flexibility of the prepared crosslinkable quick-setting rubber asphalt waterproof coating are obviously improved along with the increase of the parts of the polyurethane latex and the modifier chloroprene rubber.
In addition, through the 9 examples, when the A component SK-90 asphalt 60 parts, anionic emulsifier E20530 parts, foam killer 0.01 parts, hydroxyethyl cellulose 2 parts, acrylic emulsion 15 parts, polyurethane latex 15 parts, neoprene 40 parts, B component sodium polysulfide 10 parts, pentaerythritol 15 parts, calcium bromide 10 parts, water 150 parts, namely example 9, the crosslinkable rapid hardening rubber asphalt waterproof coating prepared was 2.8Mpa, elongation at break 1809%, water impermeability, low temperature flexibility at-15 ℃ did not crack, fracture, all obtained is the best effect.
TABLE 3 test sample physical and mechanical Properties test
In conclusion, in the crosslinkable quick-setting rubber asphalt waterproof coating provided by the invention, the long-chain characteristic of the-S-S-bond of sodium polysulfide can promote the crosslinking reaction of rubber asphalt, pentaerythritol triacrylate is formed under the reaction of pentaerythritol and acrylic emulsion to further promote the crosslinking reaction, and in the rubber asphalt demulsification process, the calcium bromide aqueous solution enables the rubber asphalt to be quickly demulsified and condensed into a film, so that a seamless, compact and high-elastic waterproof layer taking the crosslinkable rubber asphalt as continuity is formed on a base layer, and the base layer has no corrosion effect on the base layer, thereby objectively prolonging the service life of base layer concrete.
While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the invention. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be determined from the following claims.
Claims (9)
1. The crosslinkable quick-setting rubber asphalt waterproof coating is characterized by comprising a component A and a component B, wherein the component A comprises the following components in parts by weight: the component B is 8: 1-10: 1;
wherein, the component A comprises:
matrix asphalt: 20-60 parts;
anionic emulsifiers: 10-30 parts;
modifying agent: 20-40 parts of a solvent;
rubber emulsion: 10-20 parts;
a stabilizer: 1-3 parts;
acrylic emulsion: 10-20 parts;
the component B comprises:
pentaerythritol: 10-20 parts;
sodium polysulfide: 5-15 parts of a solvent;
calcium bromide: 5-10 parts;
water: 50-150 parts.
2. The crosslinkable quick-setting rubber asphalt waterproofing paint according to claim 1, wherein the base asphalt is SK-90 asphalt.
3. The crosslinkable quick-setting rubber asphalt waterproof coating material as claimed in claim 1, wherein said modifier comprises one or a combination of two or more of chloroprene rubber, ethylene propylene rubber and butadiene rubber.
4. The crosslinkable fast-setting rubber asphalt waterproof coating material according to claim 1, wherein the rubber emulsion comprises any one of or a combination of any two or more of polyurethane latex, acrylate latex and polyvinyl acetate latex.
5. The crosslinkable quick-setting rubber asphalt waterproof coating material according to claim 1, wherein the stabilizer comprises any one of hydroxyethyl cellulose, hydroxypropyl cellulose, polyanionic cellulose or a combination of any two or more thereof.
6. The crosslinkable quick-setting rubberized asphalt waterproofing coating according to claim 1, wherein said A-side component further comprises an antifoaming agent.
7. A preparation method of the crosslinkable quick-setting rubber asphalt waterproof coating material according to any one of claims 1 to 6, characterized by comprising the following steps:
step one, preparing a component A: uniformly mixing 10-30 parts of an anionic emulsifier, 1-3 parts of a stabilizer, 20-40 parts of a modifier, 10-20 parts of a rubber emulsion and 10-20 parts of an acrylic emulsion to form a mixed solution, heating 20-60 parts of matrix asphalt to 100-105 ℃ at a high temperature, and adding the mixture and the mixed solution into a colloid mill to obtain a component A;
step two, preparing a component B; uniformly mixing 5-15 parts of sodium polysulfide, 10-20 parts of pentaerythritol, 5-10 parts of calcium bromide and 50-150 parts of water to prepare a solution, thereby obtaining a component B;
and step three, adding the component A and the component B into a spray gun, atomizing in the spray gun, spraying out through a nozzle of the spray gun, and spraying the component A and the component B onto the base concrete after cross collision in the spraying process under a high-pressure state to form the crosslinkable quick-setting rubber asphalt waterproof coating.
8. The method for preparing the crosslinkable quick-setting rubber asphalt waterproof coating material according to claim 7, wherein in the step one, a defoaming agent is further added into the mixed solution.
9. The method for preparing the crosslinkable quick-setting rubber asphalt waterproof coating material according to claim 7, wherein in the third step, the high pressure is 5MPa to 8 MPa.
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| CN114921121A (en) * | 2022-05-19 | 2022-08-19 | 中铁上海工程局集团市政环保工程有限公司 | Permeable rubber emulsified asphalt waterproof coating and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105086476A (en) * | 2014-05-08 | 2015-11-25 | 重庆市化工研究院 | Composite emulsion modified emulsified asphalt and preparation method therefor |
| CN112646492A (en) * | 2020-12-15 | 2021-04-13 | 中铁四局集团有限公司 | Spraying quick-setting rubber asphalt waterproof coating and preparation method thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105086476A (en) * | 2014-05-08 | 2015-11-25 | 重庆市化工研究院 | Composite emulsion modified emulsified asphalt and preparation method therefor |
| CN112646492A (en) * | 2020-12-15 | 2021-04-13 | 中铁四局集团有限公司 | Spraying quick-setting rubber asphalt waterproof coating and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114921121A (en) * | 2022-05-19 | 2022-08-19 | 中铁上海工程局集团市政环保工程有限公司 | Permeable rubber emulsified asphalt waterproof coating and preparation method thereof |
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