Anti-sagging polyurethane-modified asphalt waterproof adhesive coating for side wall
A polyurethane modification and anti-sag technology, applied in asphalt coatings, coatings and other directions, can solve the problems of easy migration or even precipitation, affecting the anti-aging performance of coatings, affecting the performance of coatings, etc., to achieve excellent waterproof effect, good protection effect, Avoiding the effect of coil slippage
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[0042]Preparation of modified emulsified asphalt:
[0043]Modified emulsified asphalt I:
[0044](1) Take 40 parts of asphalt, 5 parts of SBR rubber, 1 part of tall oil sulfonate, 0.05 parts of polyurethane, and 35 parts of deionized water. First put the asphalt into the reactor, heat up to 200±10℃, and then add rubber , Stir for 2h, turn on the colloid mill, and grind for 60min;
[0045](2) Add tall oil sulfonate and polyurethane into water at 40°C to make soap;
[0046](3) The mixture in step (1) and the soap in step (2) are simultaneously added to a colloid mill and ground uniformly to obtain a modified emulsified asphalt I.
[0047]Modified emulsified asphalt II:
[0048](1) Take 45 parts of asphalt, 7 parts of SBS rubber, 1 part of alkyl benzene sulfonate, 1 part of alkyl sulfate, 0.06 part of polyacrylamide, 40 parts of deionized water, first put the asphalt into the reactor, and heat up To 200±10℃, then add rubber, stir for 3h, turn on the colloid mill, and grind for 30min;
[0049](2) Add tall o...
Example Embodiment
[0059]Example 1
[0060]Weigh 30 parts of polyurethane modified acrylate emulsion, 20 parts of modified emulsified asphalt I, 20 parts of anti-aging modified nano silica, 0.5 parts of defoamer BYK3455, 0.1 part of hydroxymethyl cellulose, 1 part of silicic acid Magnesium aluminum, first add the polyurethane modified acrylate emulsion and modified emulsified asphalt into the mixing tank, mix well, then add the anti-aging modified filler to fully disperse evenly, and then add the defoamer, cellulose and drying accelerator in sequence. Just stir evenly.
Example Embodiment
[0061]Example 2
[0062]Weigh 50 parts of polyurethane modified acrylate emulsion, 28 parts of modified emulsified asphalt III, 29 parts of anti-aging modified nano silica, 0.9 parts of defoamer BYK3455, 0.5 parts of hydroxyethyl cellulose, 2.5 parts of silicic acid Magnesium aluminum and 9 parts of deionized water, first add the polyurethane modified acrylate emulsion, modified emulsified asphalt and deionized water into the mixing tank, mix well, then add the anti-aging modified filler, fully disperse it, and then add it in order Stir the foaming agent, cellulose and drying accelerator evenly.
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