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Waterproof coating and preparation method thereof

A waterproof coating and waterproof treatment technology, applied in the direction of coating, etc., can solve problems such as cracking, oxidation and aging of asphalt waterproofing membranes, and reduction of toughness, and achieve the effect of restoring waterproof function, high permeability and water resistance

Active Publication Date: 2022-07-29
重庆科顺新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In practical application, when the asphalt waterproofing membrane is subjected to the long-term action of outdoor environmental conditions such as ultraviolet rays and rainwater, the asphalt waterproofing membrane is prone to oxidation and aging, which will cause its toughness to decrease and brittleness to increase, which will cause its damage. Breakage or cracking occurs, causing leakage problems in the coil

Method used

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  • Waterproof coating and preparation method thereof
  • Waterproof coating and preparation method thereof

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preparation example Construction

[0061] A second aspect of the embodiments of the present application provides a method for preparing a waterproof coating, comprising:

[0062] S1. Emulsify the silane-modified acrylate emulsion to obtain an emulsified silane-modified acrylate emulsion;

[0063] S2. Mix and process the emulsified silane-modified acrylate emulsion, water, wetting and dispersing agent, film-forming aids and other aids to obtain a liquid material;

[0064] S3, mixing cement and powder additives to obtain powder;

[0065] S4, mixing and stirring the liquid material and the powder material according to a preset weight ratio to obtain a waterproof coating.

[0066] In some embodiments, the silane-modified acrylate emulsion obtained in the above preparation method is an emulsion with ultra-fine particle size, and the particle size of the emulsion can be kept within a certain range, for example, the particle size is less than 100 μm. Since the particle size of the silane-modified acrylate emulsion i...

Embodiment 1

[0094] A waterproof coating is composed of liquid material and powder material; the liquid material comprises, in parts by weight: silane-modified acrylate emulsion (vinyl triethoxysilane coupling agent modified BASF 3587 emulsion), 85 parts; water, 8 parts; Emulsifier (Rhodia 6530), 2 parts; Wetting and dispersing agent (BASF 1850E), 0.5 parts; Coalescent (Eastmanate Twelve), 2 parts; Preservative (Casone) , 0.4 part; antifreeze (propylene glycol), 1.5 part; thickener (Dow TT935), 0.5 part; defoamer (Kemira 6660), 0.6 part; pH adjuster (AMP-95), 0.5 part ;

[0095] The powders include by weight: Portland white cement, 50 parts; titanium dioxide, 25 parts; 400-mesh heavy calcium, 14.7 parts; 250-mesh talc, 10 parts; water reducing agent (BASF F10), 0.3 parts;

[0096] The weight ratio of liquid material and powder material is 1:1.

Embodiment 2

[0098] A waterproof coating is composed of liquid material and powder material; the liquid material comprises, in parts by weight: silane-modified acrylate emulsion (vinyl triethoxysilane coupling agent modified BASF 3587 emulsion), 85 parts; water, 8 parts; Emulsifier (Rhodia 6530), 2 parts; Wetting and dispersing agent (BASF 1850E), 0.5 parts; Coalescent (Eastmanate Twelve), 2 parts; Preservative (Casone) , 0.4 part; antifreeze (propylene glycol), 1.5 part; thickener (Dow TT935), 0.5 part; defoamer (Kemira 6660), 0.6 part; pH adjuster (AMP-95), 0.5 part ;

[0099] The powders include by weight: Portland white cement, 60 parts; titanium dioxide, 25 parts; 400-mesh heavy calcium, 14.7 parts; 250-mesh talc, 10 parts; water reducing agent (BASF F10), 0.3 parts;

[0100] The weight ratio of liquid material and powder material is 1:1.

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Abstract

The application discloses a waterproof coating and a preparation method thereof. The waterproof coating is used for asphalt coil repair and waterproof treatment, and is composed of liquid material and powder material; the liquid material includes: silane-modified acrylate emulsion, 80-90 parts by weight; Water, 5-10 parts by weight; emulsifier, 1-3 parts by weight; wetting and dispersing agent, 0.2-1.0 parts by weight; film-forming auxiliary, 1-3 parts by weight; other auxiliary agents, 1-3 parts by weight; powder The material includes: cement, 30-60 parts by weight. The waterproof coating provided by the present application has high permeability and can penetrate deep into the repaired asphalt coil to fill, repair and block the cracked and aged coil pores.

Description

technical field [0001] The present application relates to the technical field of coatings, in particular to a waterproof coating and a preparation method thereof. Background technique [0002] Asphalt waterproofing membrane is mainly used for building walls, roofs, tunnels, highways, etc. It is a flexible and flexible building material product that can resist external rainwater and groundwater seepage. Leakage connection is the first barrier of waterproofing of the whole project and plays a vital role. In practical applications, when the asphalt waterproofing membrane is subjected to long-term effects of outdoor environmental conditions such as ultraviolet rays and rainwater, the asphalt waterproofing membrane is easily oxidized and aged, which will reduce its toughness and increase its brittleness, which will lead to its Fractures or cracks occur, causing leakage problems in the coil. SUMMARY OF THE INVENTION [0003] In view of this, the present application provides a ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/04C09D7/61
CPCC09D133/04C09D7/61C08K2003/2241C08K2003/265C08K3/34C08K3/22C08K3/26
Inventor 李雪梅黄莉恒李振
Owner 重庆科顺新材料科技有限公司
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