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A kind of environment-friendly weather-resistant self-layering single-component waterproof coating and preparation method thereof

A waterproof coating and self-layering technology, applied in the field of architectural waterproof coatings and waterproof coatings, can solve the problems of shortened coating life, short service life, poor weather resistance, etc. good performance

Active Publication Date: 2017-10-13
WEIFANG HONGYUAN WATERPROOF MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, most of the waterproof coatings currently on the market have certain shortcomings, and it is difficult to meet our requirements for environmental performance, ease of construction, adhesion to substrates, physical properties, and weather resistance, especially volatile organic pollution. The volatilization of substances is harmful to the environment and human body
[0004] In order to meet people's requirements for the bonding between waterproof coatings and substrates, physical properties, and waterproof effects, it is necessary to use two or more coatings in combination. On the one hand, after a long time, the adhesion between the primer, middle coat and top coat will decrease, the weather resistance and other performances will be obviously insufficient, and the life of the coating will be shortened
[0005] The existing technology has the following defects: (1) need to paint multiple layers; (2) short service life; (3) poor physical properties, poor elongation at break, tensile strength, and bonding strength; (4) no Washable, and poor weather resistance; (5) Volatile harmful organic compounds, polluting the environment and endangering health

Method used

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  • A kind of environment-friendly weather-resistant self-layering single-component waterproof coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Example 1 An environmentally friendly weather-resistant self-layering one-component waterproof coating

[0036] 1. Raw materials of waterproof coating

[0037] The raw materials of the waterproof coating include, in parts by mass: 65 parts of water-based polyurethane emulsion, 35 parts of water-based polyurethane modified fluorocarbon resin emulsion, 0.3 part of bactericide, and 1 part of defoamer.

[0038] (1) The water-based polyurethane emulsion includes the following components by mass:

[0039] 30 parts of polyether diol, 20 parts of polyether triol, 22 parts of isophorone diisocyanate, 0.3 part of catalyst, 2.5 parts of 2,2-dimethylol propionic acid, 1 part of hydroxyethyl methacrylate , 0.3 parts of emulsifier, 100 parts of deionized water;

[0040] The relative molecular mass of the polyether diol is 2000;

[0041] The model of described polyether trihydric alcohol is 330N;

[0042] The catalyst is T-12;

[0043] The emulsifier is OP-10.

[0044] (2) The w...

Embodiment 2

[0072] Example 2 An environmentally friendly weather-resistant self-layering one-component waterproof coating

[0073] 1. Raw materials of waterproof coating

[0074] The raw materials of the waterproof coating include, in parts by mass: 70 parts of water-based polyurethane emulsion, 30 parts of water-based polyurethane modified fluorocarbon resin emulsion, 0.3 part of bactericide, and 0.8 part of defoamer.

[0075] (1) The water-based polyurethane emulsion includes the following components by mass:

[0076] 30 parts of polyether diol, 20 parts of polyether triol, 22 parts of isophorone diisocyanate, 0.3 parts of catalyst, 2 parts of 2,2-dimethylol propionic acid, 1.5 parts of hydroxyethyl methacrylate , 0.3 parts of emulsifier, 100 parts of deionized water;

[0077] The relative molecular mass of the polyether diol is 2000;

[0078] The model of described polyether trihydric alcohol is 330N;

[0079] The catalyst is T-12;

[0080] The emulsifier is OP-10.

[0081] (2) T...

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Abstract

The invention provides environment-friendly weather-proof self-stratifying one-component waterproof paint. The waterproof paint is prepared from the following raw material components in parts by mass: 65 to 70 parts of waterborne polyurethane latex, 30 to 35 parts of waterborne polyurethane modified fluorocarbon resin emulsion, 0.2 to 0.4 part of sterilizing agent and 0.5 to 1 part of defoaming agent. The waterproof paint provided by the invention has the characteristic of self stratification, the performance of multi-layer coatings of traditional paint can be obtained by only brushing the waterproof paint for one time, the stripping phenomenon cannot occur and the service life can reach 70 years.

Description

technical field [0001] The invention mainly relates to a waterproof coating, which can be used for waterproofing of building exterior walls and roofs, in particular to an environment-friendly weather-resistant self-layering single-component waterproof coating, which belongs to the field of architectural waterproof coatings. Background technique [0002] Due to its wide application range and strong integrity of the waterproof layer, waterproof coatings account for an increasing proportion of waterproof materials. [0003] However, most of the waterproof coatings currently on the market have certain shortcomings, and it is difficult to meet our requirements for environmental performance, ease of construction, adhesion to substrates, physical properties, and weather resistance, especially volatile organic pollution. The volatilization of substances is harmful to the environment and human body. [0004] In order to meet people's requirements for the bonding between waterproof c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/14C09D175/04C09D5/14C09D5/16C09D5/08C08G18/67C08G18/66C08G18/48C08G18/34C08G18/62
CPCC08G18/0823C08G18/348C08G18/4812C08G18/62C08G18/6529C08G18/6541C08G18/6692C08G18/672C08L2205/02C09D5/08C09D5/14C09D5/1662C09D175/14C08L75/04
Inventor 王威谢荆阳李超任彦伟宋静杨胜
Owner WEIFANG HONGYUAN WATERPROOF MATERIAL
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