Stain-resistant exterior wall latex paint and preparation method thereof

Inactive Publication Date: 2021-11-23
安徽朗凯奇科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, hydrophilic surfactants are often used in the preparation of latex paints, but the surfactants will remain in the paint film, thereby reducing the water resistance of the dry film, resulting in a decline in the stain resistance of the paint film; A high proportion of pigments and fillers helps to improve the rigidity of the coating film, but it has strong water absorption, and when the dispersion surface treatment is performed, most of the adsorbed hydrophilic anionic dispersants are easily absorbed by water. secondary wetting

Method used

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  • Stain-resistant exterior wall latex paint and preparation method thereof
  • Stain-resistant exterior wall latex paint and preparation method thereof
  • Stain-resistant exterior wall latex paint and preparation method thereof

Examples

Experimental program
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Effect test

specific Embodiment 1

[0026] In the present embodiment, by weight, the specific formula is:

[0027] Acrylic Monomer Copolymer 15 copies Emulsifier 1 copy Ammonium persulfate 0.5 parts filler 40 copies Modified Dispersant 2 copies Coalescent 1 copy thickener 0.5 parts Defoamer 0.8 parts Modified siloxane 0.5 parts water 30 copies

[0028] Among them, the modified dispersant is polycarboxylate ammonium salt; the emulsifier is reactive emulsifier COPS-1; the film-forming aid is TEXANOL; the thickener is an associative thickener; Non-toxic defoamer; filler is bentonite.

[0029] Among them, the acrylic monomer copolymer is composed of glycidyl methacrylate, acrylic acid, styrene and butyl acrylate, and the weight ratio of glycidyl methacrylate, acrylic acid, styrene and butyl acrylate is 1:3:70 :240.

[0030] figure 1 Be the flow chart of the preparation method of a kind of stain-resistant exterior wall latex paint of th...

specific Embodiment 2

[0035] In the present embodiment, by weight, the specific formula is:

[0036] Acrylic Monomer Copolymer 25 copies Emulsifier 3 copies Ammonium persulfate 1 copy filler 50 copies Modified Dispersant 8 servings Coalescent 2 copies thickener 1.5 servings Defoamer 1.5 servings Modified siloxane 2 copies water 50 copies

[0037] Among them, the modified dispersant is polycarboxylate ammonium salt; the emulsifier is phosphate emulsifier PP40; the film-forming aid is TEXANOL; the thickener is alkali-swellable thickener; the defoamer is mineral oil modified Defoamer; filler is heavy calcium carbonate.

[0038] Among them, the acrylic monomer copolymer is composed of glycidyl methacrylate, acrylic acid, styrene and butyl acrylate, and the weight ratio of glycidyl methacrylate, acrylic acid, styrene and butyl acrylate is 1:5:80 : 250.

[0039] figure 1 Be the flow chart of the preparation method of a kind...

specific Embodiment 3

[0044] In the present embodiment, by weight, the specific formula is:

[0045] Acrylic Monomer Copolymer 20 copies Emulsifier 2 copies Ammonium persulfate 0.8 parts filler 45 copies Modified Dispersant 6 servings Coalescent 1 copy thickener 1.2 parts Defoamer 1.2 parts Modified siloxane 1 copy water 40 copies

[0046] Among them, the modified dispersant is ammonium polycarboxylate; the emulsifier is reactive emulsifier COPS-1; the film-forming aid is TEXANOL; the thickener is alkali-swellable thickener; Non-toxic defoamer; filler is talcum powder.

[0047] Among them, the acrylic monomer copolymer is composed of glycidyl methacrylate, acrylic acid, styrene and butyl acrylate, and the weight ratio of glycidyl methacrylate, acrylic acid, styrene and butyl acrylate is 1:4:75 :245.

[0048] figure 1 Be the flow chart of the preparation method of a kind of stain-resistant exterior wall latex paint of th...

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Abstract

The invention relates to the technical field of building exterior wall decoration materials, in particular to stain-resistant exterior wall latex paint which comprises, by weight, 15-25 parts of acrylic monomer copolymer, 1-3 parts of emulsifier, 0.5-1 part of ammonium persulfate, 40-50 parts of filler, 2-8 parts of modified dispersing agent, 1-2 parts of coalescing agent, 0.5-1.5 parts of thickener, 0.8-1.5 parts of defoaming agent, 0.5-2 parts of modified siloxane and 30-50 parts of water; wherein the modified dispersing agent is polycarboxylic acid ammonium salt. The invention also provides a preparation method of the stain-resistant exterior wall latex paint. The acrylic monomer copolymer, the emulsifier and the ammonium persulfate are used as raw materials to form a compact net-shaped structure with high crosslinking degree, high rigidity and high tensile property, so that the stain resistance of the latex paint is improved; a medium PVC coating is prepared, so that the stain resistance of the coating is enhanced; and the added modified dispersing agent and hydrophobic modified siloxane aid further enhance the stain resistance of the exterior wall latex paint.

Description

technical field [0001] The invention relates to the technical field of building exterior wall decoration materials, in particular to a stain-resistant exterior wall latex paint and a preparation method thereof. Background technique [0002] Architectural coatings, as the main material for finishes, play a protective and decorative role for buildings. The characteristics of architectural exterior paint finishes are low cost, easy construction, rich colors of buildings, etc., and are widely used in architectural decoration. [0003] However, after the exterior wall latex paint is painted on the building, it is exposed to the natural atmosphere for a long time, and it is easy to be deposited and adhered by various pollutants in the air, especially in the rainy season. If the waterproof and stain resistance of the exterior wall latex paint is not enough Well, some pollutants will enter the coating film along the pores of the filler, and the stains will remain in the coating fil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/08C09D5/02C09D7/61C09D7/65C09D7/63
CPCC09D133/068C09D5/028C09D5/027C09D5/024C08K2003/265C08K3/346C08K3/26C08K3/34C08K5/54
Inventor 乔启信朱华林
Owner 安徽朗凯奇科技股份有限公司
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