High-viscosity water-based asphalt waterproof coating and preparation method thereof
A bituminous waterproof coating, water-based technology, applied in the direction of bitumen coating, antifouling/underwater coating, chloroprene homopolymer coating, etc., can solve the problem that the tensile strength and elongation at break of water-based bitumen coatings are not ideal for low temperature flexibility. , poor compatibility of asphalt, etc., to achieve the effect of high bond strength, increased bond strength, tensile strength and elongation at break
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Embodiment 1
[0033] A preparation method of high-viscosity water-based asphalt waterproof coating is as follows: 5 parts of water and 10 parts of acrylic acid emulsion are added to the container and stirred evenly, then 1 part of defoamer, 5 parts of wetting agent and 1 part of dispersant are added. Mix evenly at high speed, then add 10 parts of filler, stir at 1000rpm for 20min; at 700rpm, add 50 parts of anionic emulsified asphalt, 5 parts of neoprene latex, and after stirring for 10min, add 1 part of thickener, 0.5 1 part bactericide, 1 part co-solvent, and continue to stir for 5 minutes. The thickener is compounded by water-based associative polyurethane, silicone gel and polyhydroxy polyacrylamide.
[0034] The above thickener is obtained by mixing water-based associative polyurethane and silicone gel evenly, then adding polyhydroxy polyacrylamide at 40°C, and stirring for 60 minutes. The mass ratio of the water-based associative polyurethane, silicone gel and polyhydroxy polyacrylam...
Embodiment 2
[0043] A preparation method of high-viscosity water-based asphalt waterproof coating is as follows: 15 parts of water and 30 parts of acrylic emulsion are added to the container and stirred evenly, then 2 parts of defoamer, 3 parts of wetting agent and 3 parts of dispersant are added, and the mixture is heated at 700rpm Mix evenly at high speed, then add 30 parts of filler, stir at 1100rpm for 30min; at 650rpm, add 70 parts of anionic emulsified asphalt, 25 parts of chloroprene latex, and after stirring for 5min, add 3 parts of thickener, 1 1 part bactericide, 2 parts co-solvent, and continue to stir for 10 minutes. The thickener is compounded by water-based associative polyurethane, silicone gel and polyhydroxy polyacrylamide.
[0044] The above-mentioned thickener is obtained by mixing water-based associative polyurethane and silicone gel evenly, then adding polyhydroxy polyacrylamide at 50°C, and stirring for 30 minutes. The mass ratio of the water-based associative polyur...
Embodiment 3
[0053] A preparation method of high-viscosity water-based asphalt waterproof coating is as follows: add 10 parts of water and 15 parts of acrylic acid emulsion into a container and stir evenly, then add 2 parts of defoamer, 4 parts of wetting agent, and 2 parts of dispersing agent. Mix evenly at high speed, then add 20 parts of filler, stir at 1200rpm for 40 minutes; at 800rpm, add 60 parts of anionic emulsified asphalt, 20 parts of chloroprene latex, and stir for 10 minutes, then add 2 parts of thickener, 1 1 part bactericide, 2 parts co-solvent, and continue to stir for 5 minutes. The thickener is compounded by water-based associative polyurethane, silicone gel and polyhydroxy polyacrylamide.
[0054] The above-mentioned thickener is obtained by mixing water-based associative polyurethane and silicone gel evenly, then adding polyhydroxy polyacrylamide at 50°C, and stirring for 45 minutes. The mass ratio of the water-based associative polyurethane, silicone gel and polyhydro...
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