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Modified acrylic acid emulsion

An acrylic emulsion and modification technology, which is applied in the field of acrylic copolymer emulsion, can solve the problems of scrub resistance, electrolyte stability, freeze-thaw stability, insufficient bearing capacity of pigments and fillers, etc.

Inactive Publication Date: 2003-03-26
江苏日出化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Acrylate copolymer emulsion is mainly used for interior and exterior wall latex coatings. At present, the widely used acrylate copolymer emulsion in China is mainly composed of vinyl monomers, emulsifiers, initiators, pH regulators and water. Among the vinyl monomers Including styrene, (meth)acrylate, and ethylenic functional monomers, there are obvious deficiencies in water resistance, scrub resistance, electrolyte stability, freeze-thaw stability, and pigment and filler loading capacity.

Method used

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Examples

Experimental program
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Effect test

example 1

[0007] Example 1: Styrene 23.0 (weight percentage, the same below), butyl acrylate 22.0, acrylic acid 1.0, vinyl trimethoxysilane 0.5, alkylphenol polyoxyethylene ammonium sulfate 0.2, sulfosuccinic acid ethoxylated nonane Disodium phenol half ester 0.05, nonylphenol polyoxyethylene ether 0.6, sodium allyl hydroxypropyl sulfonate 0.1, sodium persulfate 0.25, sodium bicarbonate 0.1, deionized water 52.2.

example 2

[0008] Example 2: styrene 18.0, methyl methacrylate 7.0, butyl acrylate 23.0, methacrylic acid 1.0, allyl urea 0.5, r-methacryloxypropyl trimethoxysilane 0.5, alkylphenol poly Oxyethylene ammonium sulfate 0.2, sulfosuccinic acid ethoxylated nonylphenol half ester disodium 0.05, nonylphenol polyoxyethylene ether 0.7, sodium allyl hydroxypropyl sulfonate 0.1, sodium persulfate 0.25, carbonic acid Sodium hydrogen 0.10, deionized water 48.7.

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PUM

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Abstract

A kind of modified propenoic acid latex is involved in this invention, whose modification lines in modifying latex polymer by use of wet adhesion monomer containing siloxany and ureid, so as to change adhesion capability of latex polymer and carrying capability to paint, especially increase evidently initial adhesion ofrce to abio-matrix, founder and adhesion force in rigot condition, and so waterproof and washproof capabilities of latex paint are increased geminatly. On the other side, by adopting lunar nonionic magma replacing emulsification system of intrinsic magma and protection glue and reaction magma having alkena bonds at the same time, advances electrolyte and freeze-thaw stability to a great extent, and waterproof capability is advanced accordingly.

Description

Technical field [0001] The invention relates to an acrylate copolymer emulsion, in particular to an acrylate copolymer emulsion modified by wet adhesion monomers with siloxy groups and urea groups and reactive emulsifiers with alkenyl groups. Background technique [0002] Acrylic copolymer emulsions are mainly used for interior and exterior wall latex coatings. At present, the widely used acrylate copolymer emulsions in China are mainly composed of vinyl monomers, emulsifiers, initiators, pH regulators and water. Among vinyl monomers Including styrene, (meth)acrylate, ethylenic functional monomers, there are generally obvious deficiencies in water resistance, scrub resistance, electrolyte stability, freeze-thaw stability, and pigment load carrying capacity. Summary of the invention [0003] The purpose of the present invention is to overcome the deficiencies in the prior art, and provide an initial adhesion to inorganic substrates, w...

Claims

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Application Information

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IPC IPC(8): C08F2/22C08F220/10
Inventor 周松奎肖雪平
Owner 江苏日出化工有限公司
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