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Low-temperature-resistant polymer modified asphalt waterproof coating and preparation method thereof

A technology of modified asphalt and waterproof coatings, applied in the field of coatings, which can solve the problems of high low temperature resistance performance of waterproof coatings and failure to meet the requirements of use in cold regions, and achieve the effect of improving mechanical properties and waterproof performance

Inactive Publication Date: 2020-10-09
河北盛园防水材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its low temperature resistance is -25, and its tensile strength is 1.0Mpa. The waterproof coating with this performance is only suitable for most areas in my country. The temperature in northern China often reaches minus 30°C or even lower. The low temperature resistance of waterproof coatings is relatively high, and polymer modified asphalt waterproof coatings cannot meet the requirements of cold regions.

Method used

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  • Low-temperature-resistant polymer modified asphalt waterproof coating and preparation method thereof
  • Low-temperature-resistant polymer modified asphalt waterproof coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] (1) Weigh 10 parts of SBS modified asphalt and add it to mixing tank A, heat up to 150-170°C, stir for 5 minutes, continue to heat up to 170-190°C, and set aside;

[0035] (2) Weigh 10 parts of water, 0.5 parts of emulsifier, 0.4 parts of defoamer, and 8 parts of nitrile latex, respectively, and add them to the mixing tank B in sequence, heat and stir, and keep at 60-70 ° C to obtain soap liquid for use;

[0036] (3) Put the soap liquid in mixing tank B and the SBS modified asphalt in mixing tank A into the colloid mill for emulsification to obtain modified emulsified asphalt;

[0037] (4) Add polyvinyl alcohol and water into stirring tank C, stir and heat up to 90-100°C until all solid materials are melted to obtain polyvinyl alcohol aqueous solution; the weight ratio of polyvinyl alcohol to water is 1:30;

[0038] (5) Weigh 40 parts of neoprene latex, 2 parts of antifreeze, 8 parts of rock asphalt, and 3 parts of silica sol, and add them to the mixing tank D in turn, ...

Embodiment 2

[0041] (1) Weigh 15 parts of base asphalt and add it to mixing tank A, heat up to 150-170°C, stir for 3 minutes, continue to heat up to 170-190°C, and set aside;

[0042] (2) Weigh 12 parts of water, 0.6 parts of emulsifier, 0.2 parts of defoamer, and 10 parts of styrene-butadiene latex, respectively, and add them to the mixing tank B in sequence, heat and stir, and keep at 60-70°C to obtain soap liquid for use;

[0043] (3) Put the soap liquid in the mixing tank B and the base asphalt in the mixing tank A into the colloid mill for emulsification to obtain modified emulsified asphalt;

[0044] (4) Add polyvinyl alcohol and water into the mixing tank C, stir and heat up to 90-100°C until all solid materials are melted to obtain a polyvinyl alcohol aqueous solution; the weight ratio of polyvinyl alcohol to water is 1:35;

[0045] (5) Weigh 50 parts of neoprene latex, 1.2 parts of antifreeze, 10 parts of coal tar pitch, and 4 parts of silica sol, and add them to the mixing tank D...

Embodiment 3

[0048] (1) Weigh 20 parts of SBS modified asphalt and add it to mixing tank A, heat up to 150-170°C, stir for 10 minutes, continue to heat up to 170-190°C, and set aside;

[0049] (2) Weigh 15 parts of water, 1 part of emulsifier, 0.5 part of defoamer, and 15 parts of styrene-butadiene latex, respectively, and add them to the stirring tank B in sequence, heat and stir, and keep at 60-70 ° C to obtain soap liquid for use;

[0050] (3) Put the soap liquid in mixing tank B and the SBS modified asphalt in mixing tank A into the colloid mill for emulsification to obtain modified emulsified asphalt;

[0051] (4) Add polyvinyl alcohol and water into the stirring tank C, stir and heat up to 90-100°C until all solid materials are melted to obtain a polyvinyl alcohol aqueous solution; the weight ratio of polyvinyl alcohol to water is 1:33;

[0052] (5) Weigh 45 parts of natural rubber latex, 1.5 parts of antifreeze, 12 parts of rock asphalt, and 5 parts of silica sol, and add them to th...

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Abstract

The invention discloses a low-temperature-resistant polymer modified asphalt waterproof coating and a preparation method thereof, and belongs to the technical field of waterproof coatings. The invention discloses a low-temperature-resistant polymer modified asphalt waterproof coating comprising the following components, by weight: 10 to 20 parts of matrix asphalt, SBR modified asphalt or SBS modified asphalt, 10-15 parts of water, 0.2-0.8 part of a defoaming agent, 0.5-1.0 part of an emulsifying agent, 40-50 parts of natural latex or neoprene latex, 5-15 parts of acrylonitrile-butadiene latexor styrene-butadiene latex, 1-2 parts of an antifreeze agent, 2-4 parts of silica sol, 8-12 parts of coal asphalt or rock asphalt and 2-5 parts of polyvinyl alcohol aqueous solution. According to theinvention, emulsification is carried out based on the matrix asphalt, SBR modified asphalt or SBS modified asphalt, such that asphalt mechanical properties are further improved. The waterproof performance of the polymer modified asphalt waterproof coating is further improved by adding natural latex or neoprene latex, and finally, the low-temperature performance of the coating is improved by addingan antifreeze agent, so that the requirements of no breakage and no crack during bending at a low temperature of-40 DEG C are met.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a low-temperature-resistant polymer-modified asphalt waterproof coating and a preparation method thereof. Background technique [0002] Architectural waterproof coatings are solvent-based, water-soluble, and water-emulsion coatings made of synthetic polymer materials, asphalt, polymer-modified asphalt, and inorganic materials, etc., mixed with appropriate amounts of additives, modified materials, and filling materials. Type or powder type waterproof material. The waterproof film formed after the waterproof coating is cured has certain extensibility, elastic-plasticity, crack resistance, impermeability and weather resistance, and can play the role of waterproof, anti-seepage and protection. Compared with waterproof coiled materials, waterproof coatings are simple and convenient to construct, suitable for any shape of the base surface, and can form a dense and seamless coating fi...

Claims

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Application Information

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IPC IPC(8): C09D111/02C09D107/02C09D195/00C09D7/65C09D7/63C09D7/61
CPCC08L2205/025C08L2205/035C09D107/02C09D111/02C09D7/61C09D7/63C09D7/65C08L95/00C08L53/02C08L9/02C08L29/04C08L9/06C08K3/36C08K5/053
Inventor 刘涛刘俊侠刘森
Owner 河北盛园防水材料有限公司