Amine-free styrene-acrylic emulsion as well as preparation method and application thereof

An aminostyrene acrylic emulsion and solution technology, applied in the coating and other directions, can solve the problems of low bonding strength, low compressive strength, poor impermeability, etc., and achieve low cost, improve impermeability, and reduce water absorption. Effect

Active Publication Date: 2022-05-13
GUANGDONG HENGGUANG CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems of high ammonia content, high water absorption, low bond strength, poor impermeability, and low flexural and compressive strength in styrene-acrylic emulsions in the prior art, the present invention provides an ammonia-free styrene-acrylic emulsion and a preparation method thereof and application

Method used

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  • Amine-free styrene-acrylic emulsion as well as preparation method and application thereof
  • Amine-free styrene-acrylic emulsion as well as preparation method and application thereof

Examples

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Effect test

Embodiment 1

[0050] An ammonia-free styrene-acrylic emulsion, comprising the following raw material components in parts by weight: styrene: 210 parts, n-butyl acrylate: 180 parts, 2-ethylhexyl acrylate: 55 parts, acrylic acid: 2 parts, acrylic acid Hydroxyethyl ester: 10 parts, hydroxypropyl acrylate: 12 parts, poly(propylene glycol) acrylate: 10 parts, initiator: 1.7 parts, silane coupling agent: 3.5 parts, pH regulator: 4 parts, defoamer: 1.5 parts, bactericide: 2 parts, first emulsifier: 10 parts, second emulsifier: 0.5 parts, oxidizing agent: 0.5 parts, reducing agent: 0.5 parts and deionized water: 460 parts.

[0051] Wherein, the poly(propylene glycol) acrylate is produced by Sigma Aldrich (Shanghai) Trading Co., Ltd.; the initiator is sodium persulfate; the silane coupling agent is the A-151 of United Carbon Corporation; the The pH regulator is the sodium hydroxide solution that mass concentration is 15wt%; The defoamer is 8034 of BASF Shanghai Paint Co., Ltd.; The bactericide is th...

Embodiment 2

[0066] An ammonia-free styrene-acrylic emulsion, comprising the following raw material components in parts by weight: styrene: 190 parts, n-butyl acrylate: 195 parts, 2-ethylhexyl acrylate: 60 parts, acrylic acid: 1.5 parts, acrylic acid Hydroxyethyl ester: 13 parts, hydroxypropyl acrylate: 9 parts, poly(propylene glycol) acrylate: 7 parts, initiator: 2 parts, silane coupling agent: 3 parts, pH regulator: 5 parts, defoamer: 1.8 parts, bactericide: 1.6 parts, first emulsifier: 8 parts, second emulsifier: 0.6 parts, oxidizing agent: 0.4 parts, reducing agent: 0.4 parts and deionized water: 500 parts.

[0067] Wherein, the poly(propylene glycol) acrylate is produced by Sigma Aldrich (Shanghai) Trading Co., Ltd.; the initiator is potassium persulfate; the silane coupling agent is the A-151 of United Carbon Corporation; the The pH regulator is the sodium hydroxide solution that mass concentration is 10wt%; The defoamer is 8034 of BASF Shanghai Paint Co., Ltd.; The bactericide is th...

Embodiment 3

[0082]A kind of ammonia-free styrene-acrylic emulsion, comprising the following raw material components in parts by weight: styrene: 230 parts, n-butyl acrylate: 165 parts, 2-ethylhexyl acrylate: 50 parts, acrylic acid: 2.5 parts, acrylic acid Hydroxyethyl ester: 7 parts, hydroxypropyl acrylate: 15 parts, poly(propylene glycol) acrylate: 13 parts, initiator: 1.4 parts, silane coupling agent: 4 parts, pH regulator: 3 parts, defoamer: 1.3 parts, bactericide: 2.4 parts, first emulsifier: 12 parts, second emulsifier: 0.4 parts, oxidizing agent: 0.6 parts, reducing agent: 0.6 parts and deionized water: 400 parts.

[0083] Wherein, the poly(propylene glycol) acrylate is produced by Sigma Aldrich (Shanghai) Trading Co., Ltd.; the initiator is ammonium persulfate; the silane coupling agent is the A-151 of United Carbon Corporation; the The pH regulator is the sodium hydroxide solution that mass concentration is 20wt%; The defoamer is 8034 of BASF Shanghai Paint Co., Ltd.; The bacteric...

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Abstract

The invention relates to the field of waterproof coatings, and particularly discloses an ammonia-free styrene-acrylic emulsion as well as a preparation method and application thereof. The ammonia-free styrene-acrylic emulsion is mainly formed by copolymerization of styrene, n-butyl acrylate, 2-ethylhexyl acrylate, acrylic acid, a hydroxyethyl acrylate monomer, a hydroxypropyl acrylate monomer, a poly (propylene glycol) acrylate monomer and the like. The styrene-acrylic emulsion prepared by the invention has the particle size of 275-285nm, the glass transition temperature of 20 DEG C and the minimum film-forming temperature of 6 DEG C, can form a film in a low-temperature environment without adding a film-forming aid, reduces the use of the film-forming aid, lowers the cost, is free of ammonia, formaldehyde and other pollutant emission, has excellent product performance and is green and environment-friendly. The polymer cement waterproof mortar prepared from the ammonia-free styrene-acrylic emulsion is high in impermeability, high in bonding strength and low in water absorption rate, and has excellent hydrophobic performance, compression resistance and fracture resistance.

Description

technical field [0001] The invention relates to the technical field of waterproof coatings, in particular to a non-ammonia styrene-acrylic emulsion and its preparation method and application. Background technique [0002] In recent years, with the enhancement of people's awareness of environmental protection, water dispersion systems or water-based coatings are gradually replacing traditional coatings and paints with organic solvents as the dispersed phase. Water-based coatings have unique characteristics for the emulsion selection in the system during storage and construction. Performance requirements, high-performance emulsions can improve the overall performance of water-based coatings, are clean and environmentally friendly, and ensure construction safety during use. [0003] Styrene-acrylic emulsion is an economical water-based paint film-former. It is a product of co-polymerization of styrene, acrylic acid and its ester monomers. It is a system that has been studied mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F212/08C08F220/18C08F220/06C08F220/20C08F220/28C09D125/14C09D133/08C04B28/04C04B24/26C04B111/27
CPCC08F212/08C08F220/1804C09D125/14C09D133/066C04B28/04C04B24/2641C04B2111/27C08F220/1808C08F220/06C08F220/20C08F220/286C04B14/06C04B24/383C04B2103/302C04B2103/54C04B2103/50
Inventor 高昊王志宽韩彦霞杨利鹏郭蕾
Owner GUANGDONG HENGGUANG CHEM CO LTD
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