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An anti-cracking exterior wall coating for buildings

A technology for exterior wall coatings and construction, applied in the direction of polyester coatings, coatings, etc., can solve problems such as cracking, and achieve the effects of good water resistance, good cracking resistance, and strong adhesion

Active Publication Date: 2018-11-09
湖南鹏志新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the current exterior wall coatings have sufficient anti-aging properties after being exposed to wind and sun, they often crack within their theoretical lifespan.

Method used

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  • An anti-cracking exterior wall coating for buildings

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Effect test

Embodiment 1

[0024] An anti-cracking exterior wall coating for buildings, which is formulated according to the following proportions: styrene-acrylic emulsion 25kg, methyl acrylate 12kg, acrylic modified alkyd resin 10kg, dimethyldichlorosilane 5kg, unsaturated polyester resin 5kg, bisphenol A diglycidyl ether 9kg, heavy calcium powder 1kg, sodium bentonite 2kg, sepiolite fiber 0.5kg, zinc oxide 1.5kg, magnesium stearate 5kg, triglycidyl isocyanurate 0.5kg, water 5kg, 0.3kg of diethylenetriamine, 1kg of other additives, the acid value of the unsaturated polyester resin is 110, and the epoxy value of bisphenol A diglycidyl ether is 0.48-0.5mol / 100g.

Embodiment 2

[0026] An anti-cracking architectural exterior wall coating, which is formulated according to the following proportions: styrene-acrylic emulsion 34kg, methyl acrylate 15kg, acrylic modified alkyd resin 15kg, dimethyldichlorosilane 3kg, unsaturated polyester resin 3kg, bisphenol A diglycidyl ether 7kg, heavy calcium powder 3kg, sodium bentonite 5kg, sepiolite fiber 1.5kg, zinc oxide 1kg, magnesium stearate 3kg, triglycidyl isocyanurate 0.3kg, water 10kg , 0.5kg of diethylenetriamine, 3kg of other additives, the acid value of the unsaturated polyester resin is 80, and the epoxy value of bisphenol A diglycidyl ether is 0.48-0.5mol / 100g.

Embodiment 3

[0028] An anti-cracking architectural exterior wall coating, which is formulated according to the following proportions: styrene-acrylic emulsion 27kg, methyl acrylate 14kg, acrylic modified alkyd resin 12kg, dimethyldichlorosilane 3kg, unsaturated polyester resin 5kg, bisphenol A diglycidyl ether 8kg, heavy calcium powder 1kg, sodium bentonite 5kg, sepiolite fiber 1.5kg, zinc oxide 1kg, magnesium stearate 5kg, triglycidyl isocyanurate 0.5kg, water 5kg , 0.4kg of diethylenetriamine, and 3kg of other additives. The acid value of the unsaturated polyester resin is 80, and the epoxy value of bisphenol A diglycidyl ether is 0.48-0.5 mol / 100g.

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Abstract

The invention relates to the technical field of building coating, and in particular relates to an anti-cracking exterior wall coating used for a building. The exterior wall coating comprises the following components in parts by weight: 25-34 parts of styrene-acrylic emulsion, 12-15 parts of methyl acrylate, 10-15 parts of acrylic modified alky resin, 3-5 parts of dimethyl dichlorosilane, 3-5 parts of unsaturated polyester resin, 7-9 parts of bisphenol A diglycidyl ether, 1-3 parts of ground calcium carbonate powder, 2-5 parts of sodium bentonite, 0.5-1.5 parts of sepiolite fiber, 1-1.5 parts of zinc oxide, 3-5 parts of magnesium stearate, 0.3-0.5 part of triglycidyl isocyanurate, 0.3-0.5 part of diethylenetriamine, 5-10 parts of water and 1-3 parts of other auxiliaries. The exterior wall coating provided by the invention has excellent ageing-resistant performance so as to have better anti-cracking performance, has better water resistance so as to be incapable of being damp easily, has stronger bonding power so as to be incapable of falling off easily and has better stability so as to be incapable of cracking easily.

Description

technical field [0001] The invention relates to the technical field of architectural coatings, in particular to an anti-cracking architectural exterior wall coating. Background technique [0002] Wall paint refers to the decoration and protection of the building wall, making the building wall beautiful and tidy, and at the same time protecting the building wall and prolonging its service life. According to the classification of building walls, wall coatings include two major parts: interior wall coatings and exterior wall coatings. Interior wall coatings focus on decoration and environmental protection; exterior wall coatings focus on protection and durability. In addition to its own decorative and protective functions, wall paint is also developing towards a colorful, fashionable, healthy and environmentally friendly trend. People hope that the decorative effect will be radiant and beautiful, noble, elegant, romantic, and warm; they also hope that the material itself is p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D125/14C09D167/08C09D167/06C09D7/61C09D7/63
CPCC08L2205/02C08L2205/03C09D7/61C09D7/63C09D7/70C09D125/14C08L67/08C08L67/06C08K13/04C08K7/10C08K2003/2296C08K2003/265C08K5/098C08K3/346
Inventor 谢咸颂王建才姚创张浩矗秦保刚孙杰
Owner 湖南鹏志新材料有限公司
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