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A kind of acrylate emulsion for architectural interior wall paint and its preparation method and paint

A technology of acrylate and emulsion, applied in the direction of coating, etc., can solve the problems of increasing formula cost, etc., achieve excellent scrub resistance and freeze-thaw stability, low VOC content, and good environmental protection

Active Publication Date: 2021-06-25
成都巴德富科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of coalescents not only increases the cost of the formulation but also increases the volatile organic compound (VOC) content of the coating

Method used

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  • A kind of acrylate emulsion for architectural interior wall paint and its preparation method and paint
  • A kind of acrylate emulsion for architectural interior wall paint and its preparation method and paint
  • A kind of acrylate emulsion for architectural interior wall paint and its preparation method and paint

Examples

Experimental program
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Effect test

preparation example Construction

[0040] The embodiment of the present invention proposes a kind of preparation method of above-mentioned acrylic ester emulsion for architectural interior wall coating, comprises the following steps:

[0041] a) Pre-emulsification I: At normal temperature and pressure, mix 0.1-0.4 parts of reactive anionic emulsifier, 0.1-0.4 parts of reactive nonionic emulsifier and 20-30 parts of water in an emulsification tank, stir, and then add 5 parts in sequence -15 parts of butyl acrylate, 15-23 parts of styrene, 5-15 parts of isooctyl acrylate, 0.1-0.5 parts of self-crosslinking monomer, 0.1-2 parts of carboxyl monomer, 0.1-1 part of acrylamide, 0.01- 0.1 part of silane coupling agent, stirred to obtain pre-emulsion I;

[0042] b) Polymerization I: Add 0.1-0.4 parts of reactive anionic emulsifier, 0.1-0.4 parts of reactive nonionic emulsifier and 4.5-15 parts of water into the reactor, heat up to 80-87 °C, add 0.01-0.1 parts of After the sulfate reaction, start dripping persulfate sol...

Embodiment 1

[0058] An acrylic ester emulsion for building interior wall paint is prepared by comprising the following raw materials in parts by weight:

[0059]

[0060]

[0061] The preparation method of above-mentioned acrylic acid ester emulsion for building interior wall paint, comprises the following steps:

[0062] a) Pre-emulsification I: At normal temperature and pressure, mix 0.3 parts of reactive anionic emulsifier, 0.17 parts of reactive nonionic emulsifier and 23.4 parts of water in an emulsification tank, stir well and dissolve evenly, and then add 10 parts of butyl acrylate in sequence Esters, 21.4 parts of styrene, 9.5 parts of isooctyl acrylate, 0.22 parts of self-crosslinking monomers, 1.25 parts of carboxyl monomers, 0.59 parts of acrylamide, 0.04 parts of silane coupling agent, fully stirred and dissolved evenly, that is, pre-emulsified Liquid I;

[0063] b) Polymerization I: Add 0.34 parts of reactive anionic emulsifier, 0.3 parts of reactive nonionic emulsifier...

Embodiment 2

[0070] An acrylic ester emulsion for building interior wall paint is prepared by comprising the following raw materials in parts by weight:

[0071]

[0072] The preparation method of the acrylic ester emulsion for the above-mentioned architectural interior wall paint is the same as in Example 1.

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Abstract

The present invention proposes an acrylic ester emulsion for architectural interior wall paint and its preparation method and paint, which belongs to the technical field of architectural paint. The emulsion is prepared from raw materials comprising the following parts by weight: 6-20 parts of butyl acrylate, styrene 15.5-26 parts, 6-20 parts of isooctyl acrylate, 0.11-0.55 parts of self-crosslinking monomer, 0.15-1.3 parts of acrylamide, 0.2-3 parts of carboxyl monomer, 0.015-0.12 parts of silane coupling agent, reactive type Anionic emulsifier 0.21‑0.81 part, reactive nonionic emulsifier 0.21‑0.81 part, polyethyleneimine 0.1‑2 part, adipic dihydrazide 0.1‑0.2 part, persulfate 0.12‑0.45 part, ammonia water 0.2‑ 2 parts, 30‑60 parts of water. The emulsion of the present invention is mainly used for building interior wall coatings, and the emulsion can have lower MFFT without adding film-forming aids, and the coating prepared by using it has excellent scrub resistance and freeze-thaw stability, low VOC content, Good environmental protection.

Description

technical field [0001] The invention relates to the technical field of architectural coatings, in particular to an acrylic ester emulsion for architectural interior wall coatings, a preparation method thereof and coatings. Background technique [0002] Due to its good environmental protection, low cost and excellent performance, water-based acrylate emulsion has become the mainstream resin for architectural interior wall coatings. For architectural interior wall coatings, scrub resistance, freeze-thaw stability, etc. are important performance indicators, and the most important factor affecting these indicators is the selected emulsion. In traditional methods, in order to improve the freeze-thaw stability of coatings, nonionic surfactants with higher ethoxyl numbers are often added to the emulsion, but this will reduce its scrub resistance. [0003] In addition, the minimum film forming temperature (MFFT) of the emulsion for coatings is also an important indicator for consid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F212/08C08F220/18C08F220/56C08F220/06C08F230/08C08F222/02C09D125/14
CPCC08F212/08C09D125/14C08F220/1804C08F220/56C08F220/06C08F230/08C08F220/1808C08F222/02
Inventor 范理李同军李鑫江德锦张忠伟
Owner 成都巴德富科技有限公司
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