Vac-veova emulsion and preparation method thereof

The technology of vinegar tertiary emulsion and emulsifier, which is applied in the field of coatings, can solve the problems of difficulty in realizing freeze-thaw stability and scrub resistance, and achieve the effects of improving scrub resistance, improving contact and function, and improving film-forming properties.

Active Publication Date: 2019-04-16
成都巴德富科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But at the same time, there is still room for improvement in the overall comprehensive performance of

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  • Vac-veova emulsion and preparation method thereof
  • Vac-veova emulsion and preparation method thereof

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preparation example Construction

[0053] Another embodiment of the present invention provides a method for preparing any of the above-mentioned tertiary vinegar emulsions, which may specifically include the following steps:

[0054] S1. Preparation of monomer solution A: 0.5-4 parts of emulsifier; 10-30 parts of alkyl acrylate; 15-95 parts of vinyl acetate; 15-40 parts of vinyl tertiary carbonate; parts; 2-10 parts of cross-linking functional monomers are put into the dripping tank in a stirring state and stirred for 10 minutes; 10-60 minutes for standby;

[0055] S2. Preparation of monomer solution B: Put the remaining amount of alkyl acrylate, vinyl acetate, vinyl tert-carbonate, alkyl carboxylic acid, and cross-linking functional monomer into the drop tank in a stirring state and stir for 10 minutes ;

[0056] S3. Preparation of base material liquid C: put 4-6 parts of emulsifier and 5-55% of the total amount of deionized water into a reactor equipped with a stirrer, condenser, and constant-flow pump feed...

Embodiment 1

[0069] The components and their mass fractions are shown in Table 1.

[0070] 30 parts of alkyl acrylate; 95 parts of vinyl acetate; 40 parts of vinyl tert-carbonate; 10 parts of alkyl carboxylic acid; 10 parts of crosslinking functional monomer; 6 parts of emulsifier; 2 parts of initiator; 0.5 part of buffer; PH regulator 0.5 parts; deionized to 100 parts.

[0071]A. Preparation of monomer solution A: 2 parts of emulsifier; 30 parts of alkyl acrylate; 90 parts of vinyl acetate; 39 parts of vinyl tertiary carbonate; 9.9 parts of alkyl carboxylic acid; In the stirring state, put them into the dropping tank one by one and stir for 10 minutes; then put 30% of the total amount of deionized water into the dropping tank, and put in the buffer at the same time, and continue to disperse for 60 minutes for later use.

[0072] B. Preparation of monomer solution B: put 0 part of alkyl acrylate; 5 parts of vinyl acetate; 1 part of vinyl tertiary carbonate; 0.1 part of alkyl carboxylic ac...

Embodiment 2

[0081] The components and their mass fractions are shown in Table 1.

[0082] 25 parts of alkyl acrylate; 75 parts of vinyl acetate; 35 parts of vinyl tertiary carbonate; 7.5 parts of alkyl carboxylic acid; 8 parts of cross-linking functional monomer; 5 parts of emulsifier; 1.5 parts of initiator; PH regulator 0.4 parts; deionized to 100 parts.

[0083] A. Preparation of monomer solution A: 4 parts of emulsifier; 15 parts of alkyl acrylate; 60 parts of vinyl acetate; 20 parts of vinyl tertiary carbonate; 7 parts of alkyl carboxylic acid; In the stirring state, put them into the dropping tank one by one and stir for 10 minutes; then put 40% of the total amount of deionized water into the dropping tank, and put in the buffer at the same time, and continue to disperse for 50 minutes for later use.

[0084] B. Preparation of monomer solution B: put 10 parts of alkyl acrylate; 15 parts of vinyl acetate; 15 parts of vinyl tertiary carbonate; 0.5 parts of alkyl carboxylic acid; Add...

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Abstract

The invention belongs to the technical field of coatings and provides vac-veova emulsion and a preparation method thereof. The vac-veova emulsion has a good high pH value and high temperature stability, and can simultaneously have good freeze-thaw stability, thermal storage stability and scrubbing resistance under the condition that an antifreezing agent and a film forming auxiliary agent are notadditionally added. The vac-veova emulsion comprises, by mass, 10-30 parts of alkyl acrylate, 5-95 parts of vinyl acetate, 1-40 parts of vinyl tert-carbonate, 0.1-10 parts of alkyl carboxylic acid, 1-10 parts of a crosslinking functional monomer and 0.5-6 parts of an emulsifier; 0.1-2 parts of an initiator; 0.01-0.5 part of a buffer, 0-0.5 part of a pH regulator and 100 parts of deionized water. The vac-veova emulsion is used as a high-performance low-cost environment-friendly emulsion for building coatings.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to an acrylic emulsion and its preparation, in particular to a tertiary vinegar emulsion and its preparation method. Background technique [0002] In recent years, water-based acrylic emulsions have been favored by the market, especially water-based acrylic styrene-acrylic emulsions and water-based acrylic pure acrylic emulsions, which are mainly composed of styrene and methyl methacrylate, supplemented by butyl acrylate and isooctyl acrylate. The performance is more prominent. But in recent years, with the strengthening of the environmental protection situation, the prices of styrene, methyl methacrylate, butyl acrylate and isooctyl acrylate monomers have started to rise continuously and remain high. Secondly, the styrene-acrylic emulsion system mainly composed of styrene contains a large amount of benzene series, which will more or less have a certain impact on health; while the...

Claims

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Application Information

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IPC IPC(8): C08F218/08C08F218/10C08F220/14C08F220/18C08F220/28C08F230/08C08F222/14C08F2/26C08F2/30
CPCC08F2/26C08F2/30C08F218/08C08F218/10C08F220/18C08F220/283C08F230/08C08F220/1802C08F220/1803C08F220/1804C08F220/14C08F220/1808C08F222/103C08F220/1805
Inventor 熊乐曾庆乐黄志林黎清挺甘锡华杨文涛
Owner 成都巴德富科技有限公司
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