Non-cured rubber asphalt waterproof coating and preparation method thereof

A technology of asphalt waterproof coating and non-curing rubber, which is applied in the direction of asphalt coating, antifouling/underwater coating, coating, etc., and can solve the problems of smoke generation, poor creep performance, insufficient cohesive strength, etc. , to achieve the effect of good sealing, good cohesion and good secondary adhesion performance

Active Publication Date: 2020-07-28
GUANGXI YUJIE WATERPROOF & ANTICORROSION MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The smog contains a large amount of substances harmful to the human body, which seriously affects people's health and also damages the surrounding environment.
2. Containing a certain amount of liquid components such as mineral oil, the waterproof material will show a creep state in a short period of time, and the cohesive strength is not enough. As time goes on, the material will lose its creep property and the elongation rate will be greatly reduced
The Chinese invention patent with the publication number CN104789127A discloses a one-component water-based non-curing rubber asphalt waterproof coating and its preparation method. The invention uses an acrylate emulsion with a glass transition temperature, and is equipped with a modified liquid tackifying resin and a rubber emulsion. , which greatly improves the initial tack, stickiness, permeability, creep and aging resistance of the coating, but the invention does not solve the problem of smoke generation, and its solid content is only 66-69%, which does not meet the requirements of JC / T2428- 2017 "Non-curing rubber asphalt waterproof coating" is not a real non-curing rubber asphalt waterproof coating
[0005] Therefore, it is necessary to conduct more in-depth research on the existing non-curing rubber asphalt waterproof coatings to solve the existing problems of smoke pollution, poor creep performance and inability to construct on wet foundation surfaces.

Method used

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  • Non-cured rubber asphalt waterproof coating and preparation method thereof

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Effect test

Embodiment 1

[0033] A non-curing rubber asphalt waterproof coating, which is mainly prepared by mixing the following raw materials according to weight percentage: 13.9% cationic styrene butadiene latex, 68% non-ionic emulsified asphalt, 17% octylphenol polyoxyethylene ether, ASE 60 alkali swelling Thickener 0.4%, polyurethane defoamer 0.4%, bactericide 0.1%, pH regulator 0.2%.

[0034] The present invention also provides a preparation method of non-curing rubber asphalt waterproof coating, including the following steps:

[0035] (1) Add cationic styrene butadiene latex and non-ionic emulsified asphalt into the dispersing machine, the speed of the dispersing machine is 250 rpm, the dispersion time is 40 minutes, and the dispersion is uniform to obtain mixture A;

[0036] (2) Add the polyurethane defoamer to the mixture A, the speed of the disperser is 250 rpm, and the dispersion is uniform to obtain the mixture B;

[0037] (3) Add surfactant to mixture B, increase the dispersion speed to 450 rpm, t...

Embodiment 2

[0042] A non-curable rubber asphalt waterproof coating, mainly prepared by mixing the following raw materials according to weight percentage: cationic styrene butadiene latex 18.3%, non-ionic emulsified asphalt 55%, nonylphenol polyoxyethylene ether 25%, ASE 60 alkali swelling Thickener 0.8%, polyurethane defoamer 0.3%, bactericide 0.2%, pH regulator 0.4%.

[0043] The present invention also provides a preparation method of non-curing rubber asphalt waterproof coating, including the following steps:

[0044] (1) Add cationic styrene-butadiene latex and non-ionic emulsified asphalt into the disperser at a speed of 300 rpm, a dispersion time of 30 minutes, and a uniform dispersion to obtain a mixture A;

[0045] (2) Add the polyurethane defoamer to the mixture A, the speed of the disperser is 300 rpm, the dispersion is uniform, and the mixture B is obtained;

[0046] (3) Add the surfactant to the mixture B, the speed of the dispersing machine is 500 rpm, the dispersion time is 50 minute...

Embodiment 3

[0051] A non-curable rubber asphalt waterproof coating, which is mainly prepared by mixing the following raw materials according to weight percentages: cationic styrene butadiene latex 15.2%, non-ionic emulsified asphalt 64.3%, carbon fatty alcohol polyoxyethylene ether 19.15%, ViscalexHV-30 alkali swelling Thickener 0.6%, polyurethane defoamer 0.3%, bactericide 0.15%, pH regulator 0.3%.

[0052] The present invention also provides a preparation method of non-curing rubber asphalt waterproof coating, including the following steps:

[0053] (1) Add cationic styrene-butadiene latex and non-ionic emulsified asphalt into the disperser at a speed of 300 rpm, a dispersion time of 30 minutes, and a uniform dispersion to obtain a mixture A;

[0054] (2) Add polyurethane defoamer to mixture A and disperse it evenly to obtain mixture B;

[0055] (3) Add the surfactant to the mixture B, the speed of the dispersing machine is 500 rpm, the dispersion time is 50 minutes, increase the dispersion spe...

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Abstract

The invention provides a non-cured rubber asphalt waterproof coating and a preparation method thereof, and belongs to the technical field of waterproof materials. The waterproof coating is mainly prepared by mixing the following raw materials in percentage by weight: 13.9%-18.3% of cationic styrene-butadiene latex, 55%-68% of nonionic emulsified asphalt, 17%-25% of a surfactant, 0.4%-0.8% of an alkali swelling thickener, 0.2%-0.4% of a polyurethane defoamer, 0.1%-0.2% of a bactericide and 0.2%-0.4% of a pH regulator. The non-cured rubber asphalt waterproof coating provided by the invention canbe constructed at normal temperature, does not generate smoke and odor in the construction and use processes, and is good in environmental protection property; the waterproof coating is a water-soluble adhesive, is high in viscosity and can be directly used on a humid basal plane.

Description

【Technical Field】 [0001] The invention relates to the technical field of waterproof coatings, in particular to a non-curing rubber asphalt waterproof coating and a preparation method thereof. 【Background technique】 [0002] Non-curing rubber asphalt waterproof coating (hereinafter referred to as non-curing coating) is a new type of waterproof material with creep properties that is based on rubber powder, asphalt and special additives as the main raw materials, and maintains a viscous paste for a long time in the application state. The coating can seal the cracks and pores of the base layer, and can adapt to the complicated construction work surface; it will not be cured for a long time after contact with air, and it will always maintain the characteristics of viscous glue. It has strong self-healing ability, sticks when touched, and is difficult to peel off. ℃ still has good bonding properties. It can solve the problems of waterproof layer fracture, flexural fatigue or premature...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D195/00C09D109/08C09D5/14
CPCC08L2201/08C08L2205/035C09D5/14C09D195/00C08L9/08
Inventor 孙浩孙向东
Owner GUANGXI YUJIE WATERPROOF & ANTICORROSION MATERIAL CO LTD
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