Self-cleaning spraying rubber asphalt waterproof system and preparation method thereof

A rubber asphalt, self-cleaning technology, used in asphalt coatings, devices for coating liquid on surfaces, coatings, etc. problems, to avoid pollution, solve the problem of anti-freezing, and improve the effect of waterproofing

Active Publication Date: 2020-08-14
铁科腾跃科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved in the present invention is to provide a self-cleaning sprayed rubber asphalt waterproof system and its preparation method, to solve the problem of water absorption on the surface of rubber asphalt and high water absorption rate of the coating film, water penetration into the interior of the rubber asphalt coating film to cause swelling of the coating film and rubber asphalt The problem that the coating film cannot resist freezing and cracking, and can improve the self-cleaning performance of the sprayed rubber asphalt coating film

Method used

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  • Self-cleaning spraying rubber asphalt waterproof system and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0039] First, prepare spray rubber asphalt composite material: take 54 parts of anionic emulsified asphalt, 50 parts of chloroprene latex LIPRENB, 0.5 parts of defoamer and 10 parts of triaryl phosphate, stir and mix for 30 minutes to obtain rubber asphalt components. A curing agent component was obtained by dissolving 10 parts of calcium chloride in 90 parts of water to obtain a 10% aqueous solution of calcium chloride.

[0040] Next, prepare the superhydrophobic polyurethane coating solution: 43 parts of polypropylene oxide polyol and 12 parts of hydroxyalkyl modified silicone Tech-2110 are vacuum dehydrated at 110 ° C, and 25 parts of isophorone diisocyanate IPDI are added after cooling down React with 0.025 parts of dibutyltin dilaurate, stop the reaction when w(NCO) is lower than 6.1%, and obtain a polyurethane prepolymer. Take 4 parts of nano-silica with a particle size of 7nm, 6 parts of polyurethane prepolymer, and 90 parts of ethyl acetate, and oscillate evenly in an ...

Embodiment 2

[0043] First, prepare the spray rubber asphalt combination: take 50 parts of anionic emulsified asphalt, 40 parts of neoprene latex LIPRENB, 7 parts of styrene-butadiene latex KSL 341, 0.2 parts of defoamer, 3 parts of triaryl phosphate and 12 parts of magnesium hydroxide, Stir and mix for 30 minutes to obtain rubber asphalt components. The curing agent component was obtained by dissolving 10 parts of zinc sulfate in 90 parts of water to obtain a 10% zinc sulfate aqueous solution.

[0044] Next, prepare a superhydrophobic polyurethane coating solution: 40 parts of polypropylene oxide polyol and 20 parts of hydroxyalkyl modified silicone Tech-2120 are vacuum dehydrated at 110°C, and 18 parts of 4,4-dicyclohexyl Methane diisocyanate HMDI reacts with 0.03 parts of dibutyltin dilaurate, and stops the reaction when w(NCO) is lower than 4.2%, to obtain a polyurethane prepolymer. Take 4 parts of nano-silica with a particle size of 12nm, 10 parts of polyurethane prepolymer, 60 parts ...

Embodiment 3

[0047] First, prepare spray rubber asphalt combination: get 40 parts of anionic emulsified asphalt, 30 parts of chloroprene latex, 10 parts of styrene-butadiene latex KSL 341, 0.5 part of defoamer, 5 parts of tris(2-chloropropyl) phosphate and 5 parts part of antimony trioxide, and stirred and mixed for 30 minutes to obtain rubber asphalt components. A curing agent component was obtained by dissolving 10 parts of calcium nitrate in 90 parts of water to obtain a 10% aqueous solution of calcium nitrate.

[0048] Next, prepare the superhydrophobic polyurethane coating solution: 45 parts of polypropylene oxide polyol and 8 parts of hydroxyalkyl modified silicone Tech-2110 are vacuum dehydrated at 110°C, and 10 parts of cyclohexane dimethylene are added after cooling down Diisocyanate HXDI reacts with 0.015 parts of dibutyltin dilaurate, and stops the reaction when w(NCO) is lower than 2.8%, to obtain a polyurethane prepolymer. Take 5 parts of nano-silica with a particle size of 2...

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Abstract

The invention discloses a self-cleaning spraying rubber asphalt waterproof system and a preparation method. The waterproof system comprises a sealing paint layer, a spraying rubber asphalt coating layer and a super-hydrophobic self-cleaning polyurethane coating layer which are sequentially arranged on a base material from bottom to top. The preparation method comprises the following steps: preparing a spraying rubber asphalt composite material, preparing a super-hydrophobic polyurethane coating solution, brushing sealing paint on the surface of the base material, spraying a rubber asphalt waterproof film on the surface of the sealing paint, and spraying a super-hydrophobic polyurethane coating on the surface of dried rubber asphalt. The problems that the surface of the rubber asphalt absorbs water, the water absorption rate of a coating film is high, water permeates into the rubber asphalt coating film to cause swelling of the coating film, and the rubber asphalt coating film cannot resist frost cracking are solved, and the self-cleaning performance of the spraying rubber asphalt coating film is improved.

Description

technical field [0001] The invention relates to the technical field of waterproof materials, in particular to a spray rubber asphalt waterproof system and a preparation method thereof. Background technique [0002] With the advancement of science and technology and the enhancement of people's awareness of environmental protection, people are paying more and more attention to the safety and quality of buildings. Waterproof materials are essential materials in waterproofing projects to protect building safety and service life. Spray rubber asphalt waterproof coating is one of the waterproof materials. Generally, the rubber asphalt mixture of component A and the curing agent of component B are sprayed, and the water is separated into a film in an instant to form a seamless waterproof layer. Relying on the excellent adhesion of asphalt , forms a good adhesion effect with the substrate, and sticks tightly to the surface of the substrate. It is widely used because of its many adva...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D195/00C09D111/02C09D109/08C09D5/16C09D7/63C09D175/08C09D7/61B05D7/00B05D5/00
CPCC09D195/005C09D5/1687C09D175/08B05D7/584B05D5/00B05D2503/00B05D2530/00C08K2201/011C08K2003/2224C08L2205/03C08L11/02C08L9/08C08K5/523C08K3/22C08K3/2279C08K5/521C08K3/36
Inventor 张勇张彬刘志郝林栓魏嵩耿月杨富民
Owner 铁科腾跃科技有限公司
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