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APAO modified styrene-acrylic emulsion and preparation method thereof

A styrene-acrylic emulsion and modification technology, applied in the direction of coating, etc., can solve the problems of poor anti-sag performance and unsatisfactory performance, and achieve the effect of good adhesion, good adhesion, and salt spray resistance

Inactive Publication Date: 2020-02-18
UNION FOSHAN CHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Above-mentioned invention has done certain modification to styrene-acrylic emulsion, and its performance also has certain improvement, but still not ideal, especially in anti-sag performance poorer, therefore, develop a kind of styrene-acrylic emulsion with good anti-sagging performance to meet current Urgent needs of the market

Method used

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  • APAO modified styrene-acrylic emulsion and preparation method thereof
  • APAO modified styrene-acrylic emulsion and preparation method thereof

Examples

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Effect test

Embodiment 1

[0027] An APAO modified styrene-acrylic emulsion, the components of which are in parts by weight: 6.0 parts of APAO, 15.0 parts of methyl methacrylate, 12.0 parts of butyl acrylate, 4.0 parts of glycidyl acrylate, 28.0 parts of styrene, acrylic acid 2.5 parts of hydroxyethyl ester, 3.8 parts of acrylic acid, 0.2 parts of ammonium persulfate, 0.7 parts of sodium bicarbonate, 4.5 parts of triethylamine, 3.0 parts of emulsifier, 7.0 parts of ethylene glycol monobutyl ether, and 130.0 parts of deionized water.

[0028] A kind of preparation method of APAO modified styrene-acrylic emulsion in the present embodiment, comprises the following steps:

[0029] 1) Weigh in proportion, add methyl methacrylate, butyl acrylate, hydroxyethyl acrylate and acrylic acid in sequence and stir evenly to obtain mixed liquid I;

[0030] 2) Weigh in proportion, add styrene, APAO, ethylene glycol monobutyl ether, glycidyl acrylate in sequence and stir evenly to obtain the mixed solution II;

[0031] ...

Embodiment 2

[0034] An APAO modified styrene-acrylic emulsion, the components of which are in parts by weight: 5.0 parts of APAO, 12.0 parts of methyl methacrylate, 5.0 parts of acrylonitrile, 6.0 parts of butyl acrylate, and 9.0 parts of lauryl methacrylate , 4.0 parts of glycidyl acrylate, 30.0 parts of styrene, 2.0 parts of hydroxybutyl acrylate, 3.8 parts of acrylic acid, 0.3 parts of ammonium persulfate, 0.8 parts of sodium bicarbonate, 4.0 parts of ammonia water, 3.5 parts of emulsifier, butylated diethylene glycol 7.0 parts of ether, 140.0 parts of deionized water.

[0035] A kind of preparation method of APAO modified styrene-acrylic emulsion in the present embodiment, comprises the following steps:

[0036] 1) Weigh in proportion, add methyl methacrylate, acrylonitrile, butyl acrylate, lauryl methacrylate, hydroxybutyl acrylate, and acrylic acid in sequence and stir evenly to obtain a mixed solution I;

[0037] 2) Weigh in proportion, add styrene, APAO, diethylene glycol butyl et...

Embodiment 3

[0041] An APAO modified styrene-acrylic emulsion, the components of which are: 7.0 parts of APAO, 10.0 parts of isobornyl acrylate, 6.0 parts of acrylamide, 7.0 parts of octadecyl methacrylate, and isooctyl methacrylate 5.0 parts, 5.0 parts of glycidyl acrylate, 31.0 parts of styrene, 2.0 parts of hydroxyethyl methacrylate, 4.0 parts of acrylic acid, 0.3 parts of ammonium persulfate, 0.8 parts of sodium bicarbonate, 5.4 parts of triethylamine, 3.2 parts of emulsifier , 8.0 parts of ethylene glycol monobutyl ether, and 143.0 parts of deionized water.

[0042] A kind of preparation method of APAO modified styrene-acrylic emulsion in the present embodiment, comprises the following steps:

[0043] 1) Weigh in proportion, add isobornyl acrylate, acrylamide, stearyl methacrylate, isooctyl methacrylate, hydroxyethyl methacrylate, and acrylic acid in sequence and stir evenly to obtain a mixed solution I;

[0044] 2) Weigh in proportion, add styrene, APAO, ethylene glycol monobutyl et...

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Abstract

The invention relates to APAO modified styrene-acrylic emulsion and a preparation method thereof. The modified styrene-acrylic emulsion comprises, by weight, 4.0-8.0 parts of APAO, 10.0-25.0 parts ofan acrylate hard monomer, 6.0-20.0 parts of an acrylate soft monomer, 2.0-5.0 parts of glycidyl acrylate, 20.0-35.0 parts of styrene, 1.5-4.0 parts of a crosslinking monomer, 2.5-5.0 parts of acrylicacid, 0.1-0.3 parts of ammonium persulfate, 0.5-1.0 parts of sodium bicarbonate, 2.5-6.0 parts of a neutralizing agent, 1.5-4.4 parts of an emulsifier, 5.0 to 10.0 parts of a cosolvent, and 100.0 to 160.0 parts of deionized water; the APAO modified styrene-acrylic emulsion provided by the invention has the advantages of good adhesive force and good anti-sagging performance, and an anti-sagging auxiliary agent does not need to be added. The APAO modified styrene-acrylic emulsion prepared by the invention has the properties of good adhesive force, acid and alkali resistance, water resistance, salt fog resistance, good sagging resistance, simplicity in construction and the like.

Description

technical field [0001] The invention relates to a modified styrene-acrylic emulsion, in particular to an APAO modified styrene-acrylic emulsion and a preparation method thereof, belonging to the technical field of synthetic resins. Background technique [0002] Styrene-acrylic emulsion is obtained by emulsion copolymerization of styrene and butyl acrylate monomers. Styrene-acrylic emulsion is a system that has been studied more in emulsion polymerization. It is an important non-crosslinked emulsion and has a very wide range of applications. Water-based styrene-acrylic emulsion has the advantages of good film-forming property, good workability, alkali resistance and color retention of the coating film, and no pollution. It has been widely used at present. However, styrene-acrylic emulsion products tend to become brittle under low temperature conditions and have poor high temperature resistance. The most obvious disadvantage in coating applications is high temperature stickin...

Claims

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Application Information

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IPC IPC(8): C08F255/00C08F220/14C08F220/18C08F220/32C08F212/08C08F220/20C08F220/06C08F220/44C08F220/56C09D151/06
CPCC08F255/00C09D151/06C08F220/14C08F212/08C08F220/20C08F220/06C08F220/44C08F220/56
Inventor 张武谢义鹏康伦国姚东生
Owner UNION FOSHAN CHEM
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