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Polyurethane building wall edge and corner coating and production method thereof

A technology for architectural coatings and polyurethanes, applied in polyurea/polyurethane coatings, anti-corrosion coatings, antifouling/underwater coatings, etc., can solve problems such as easy water leakage, prolong the life of the paint film, prevent cracks, water resistance and mechanical mechanics good performance

Inactive Publication Date: 2017-05-17
GUANGXI JISHUN ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, since the coatings currently used are effective on large areas of building walls, they may not be able to prevent water leakage at seams and corners, especially in basements and some seams, which are often prone to water leakage. This problem is a difficult problem that has always been difficult to solve

Method used

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  • Polyurethane building wall edge and corner coating and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Add 5 parts of water, 10 parts of titanium dioxide, 7 parts of water-soluble chitosan (molecular weight 50,000), 9 parts of additives (including 1 part of chain extender, 2 parts of leveling agent, and 3 parts of dispersant) in the mixer , 1 part of thickener, 0.5 part of bactericidal antifungal agent, 0.5 part of defoamer, 1 part of dustproof agent), 12 parts of filler (ultrafine talcum powder: mica powder = 1:1), stir well, and mix the obtained The solution is ground by a sander to a particle size of less than 40 microns, and then the solution is put back into the mixer, and 3 parts of adhesion promoter, 50 parts of water-curable polyurethane, 15 parts of water-based acrylic resin, and 9 parts of dimethyl carbonate are mixed into it. Stir well.

Embodiment 2

[0047] Add 8 parts of water, 6 parts of titanium dioxide, 9 parts of water-soluble chitosan (molecular weight 30,000), 13 parts of additives (including 3 parts of chain extender, 2 parts of leveling agent, and 1 part of dispersant) in the mixer , 3 parts of thickener, 0.5 part of bactericidal antifungal agent, 1.5 parts of defoamer, 2 parts of dustproof agent), 16 parts of filler (ultrafine talcum powder: mica powder = 1:1), stir well, and mix the obtained The solution is ground by a sander until the particle size is within 40 microns, and then the solution is put back into the mixer, and 7 parts of adhesion promoter, 45 parts of water-curable polyurethane and 25 parts of water-based acrylic resin are put into it, and 8 parts of dimethyl carbonate are mixed. Stir well.

Embodiment 3

[0049] Add 6 parts of water, 7 parts of titanium dioxide, 5 parts of water-soluble chitosan (molecular weight 20,000), 8 parts of additives (including 1 part of chain extender, 1 part of leveling agent, and 2 parts of dispersant) in the mixer , 1 part of thickener, 1 part of bactericidal antifungal agent, 1 part of defoamer, 1 part of dustproof agent), 14 parts of filler (ultrafine talcum powder: mica powder = 1:1), stir well, and mix the obtained The solution is ground by a sander until the particle size is within 40 microns, and then the solution is put back into the mixer, and 5 parts of adhesion promoter, 40 parts of water-curable polyurethane and 20 parts of water-based acrylic resin are put into it, and 10 parts of dimethyl carbonate are mixed. Stir well.

[0050] According to GB / T1723-93, GB / T 1724-89, GB / T 1731-93, GB / T 1732-93, GB / T1733-93, GB / T 1734-93 standards, the results are listed in the table below.

[0051]

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PUM

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Abstract

The problem that a coating used in the prior art has an effect on a large area of building wall, while not always has a function of preventing and controlling water leakage at butt seams and corners, and particularly water leakage is prone to happen at the basement and some seams is always hard to solve. The provided coating is high in adhesive force and good in chemical resistance, acid-base resistance, water resistance, solvent resistance, temperature resistance, weathering resistance and stain resistance, provides a coating film long in life, and can protect the building edges and corners from leaking or cracking. The coating comprises main components of water cured polyurethane, aqueous acrylic resin and additives. The polyurethane building coating is good in bonding property, and is eco-friendly, safe, pollution-free, and toxicity-free.

Description

technical field [0001] The invention relates to a building coating, especially a polyurethane building coating. Background technique [0002] Due to the increasingly developed world industry and the destruction of nature by humans, architectural coatings have attracted the attention and attention of countries all over the world. my country's building energy consumption accounts for more than 30% of human energy consumption. The use function of objects, energy saving and consumption reduction are another important considerations in the design of building material selection. In the field of architectural coatings, the development goals at home and abroad are also developing in the direction of high efficiency, energy and resource saving, harmlessness and pollution-free. The architectural heat-reflecting and heat-insulating coatings developed in recent years are not only decorative, but also have heat-reflecting and heat-insulating effects. When applied to building roofs, inter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D133/00C09D5/16C09D5/08C09D7/12
CPCC09D175/04C08K2201/014C08L2205/03C09D5/08C09D5/1687
Inventor 方凤才谢彤李光明
Owner GUANGXI JISHUN ENERGY TECH
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