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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

Active Publication Date: 2021-02-09
北京金盾建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The rubber and asphalt in the rubber asphalt coating are directly added into the system, which cannot form a uniform and stable system, resulting in poor coating performance and difficult storage; in addition, the silica, pigments and fillers in the system are also directly added , it is easy to agglomerate and affect the performance of the coating, especially the adhesive performance; the anti-aging agent is a known conventional anti-aging agent, which is introduced as a small molecule alone and cannot be bonded with the matrix resin, and it is easy to occur after long-term use Migration or even precipitation, thus affecting the anti-aging performance of the coating

Method used

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  • Anti-sagging polyurethane-modified asphalt waterproof adhesive coating for side wall
  • Anti-sagging polyurethane-modified asphalt waterproof adhesive coating for side wall
  • Anti-sagging polyurethane-modified asphalt waterproof adhesive coating for side wall

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Experimental program
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Effect test

preparation example Construction

[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 add the asphalt into the reaction kettle, raise the temperature to 200±10°C, and then add rubber , stirred for 2 hours, turned on the colloid mill, and ground for 60 minutes;

[0045] (2) Add tall oil sulfonate and polyurethane to water at 40°C to make soap;

[0046] (3) Add the mixture in step (1) and the soap solution in step (2) to a colloid mill and grind evenly to obtain modified emulsified asphalt I.

[0047] Modified emulsified asphalt II:

[0048] (1) Take 45 parts of asphalt, 7 parts of SBS rubber, 1 part of alkylbenzene sulfonate, 1 part of alkyl sulfate, 0.06 part of polyacrylamide, 40 parts of deionized water, first add the asphalt into the reaction kettle, and heat up to 200±10°C, then add rubber, stir for 3 hours,...

Embodiment 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 part of defoamer BYK3455, 0.1 part of hydroxymethyl cellulose, and 1 part of silicic acid Magnesium aluminum, first add polyurethane modified acrylate emulsion and modified emulsified asphalt into the stirring tank, mix evenly, then add anti-aging modified filler, fully disperse evenly, then add defoamer, cellulose and drying agent in sequence, Just mix well.

Embodiment 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 polyurethane modified acrylate emulsion, modified emulsified asphalt and deionized water into the stirring tank, mix evenly, then add anti-aging modified filler, fully disperse evenly, and then add disinfectant Foaming agent, cellulose and drying agent, just stir evenly.

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Abstract

The invention belongs to the technical field of coatings, and particularly relates to an anti-sagging polyurethane-modified asphalt waterproof adhesive coating for side walls. The coating comprises the following components in parts by weight: 30-60 parts of polyurethane-modified acrylate emulsion, 20-30 parts of modified emulsified asphalt, 20-30 parts of anti-aging modified filler, 0.5-1 part ofdefoaming agent, 0.1-0.5 part of cellulose, 1-3 parts of drying accelerator and 0-10 parts of deionized water. According to the waterproof adhesive coating, the polyurethane-modified acrylic emulsionserves as a matrix emulsion, the high and low temperature resistance of the matrix emulsion is superior to that of the acrylic emulsion, asphalt is added in the form of the modified emulsified asphalt, mixing and dissolving of the asphalt and a system are better facilitated, and the waterproof effect, the adhesion to a wall and the aging resistance can be effectively improved in cooperation with the anti-aging modified filler.

Description

technical field [0001] The invention belongs to the technical field of coatings, in particular to an anti-sag polyurethane modified asphalt waterproof adhesive coating for side walls. Background technique [0002] It is difficult for the waterproof membrane of the side wall of the basement to be fully sticky, and the combined use of the membrane and the coating can effectively solve this problem. Coiled materials and non-cured rubber asphalt waterproof coatings are often used in combination in market products, but non-cured rubber asphalt waterproof coatings have poor high temperature resistance and low cohesion, which may easily cause coiled materials to slip. Other modified asphalt coatings are mostly modified with acrylic emulsion, and the low-temperature performance and adhesion of the material are poor. [0003] Chinese patent document CN 108690409 A discloses a rubber asphalt coating and its preparation process. The rubber asphalt coating includes the following compon...

Claims

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Application Information

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IPC IPC(8): C09D133/04C09D195/00C09D7/62C09D7/48C09D7/65
CPCC09D133/04C09D7/62C09D7/48C09D7/65C08K2201/011C08L2201/08C08L2205/035C08L95/00C08L53/02C08L75/04C08L33/26C08L5/16C08K9/08C08K3/36
Inventor 刘伟
Owner 北京金盾建材有限公司
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