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Method for preventing resin from tackifying and generating large particles during polymerization reaction

A polymerization reaction, large particle technology, applied in the field of resin processing, to achieve good quality results

Inactive Publication Date: 2021-10-19
常州都铂高分子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to aim at the defects and deficiencies of the prior art, to provide a method for preventing resin viscosity increase and large particles during polymerization with reasonable design, which can produce no large particles and viscosity increase problems, and there will be no mixer Good quality acrylic resin and acrylate resin for the problem of excessive load and poor filtration of products

Method used

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  • Method for preventing resin from tackifying and generating large particles during polymerization reaction
  • Method for preventing resin from tackifying and generating large particles during polymerization reaction
  • Method for preventing resin from tackifying and generating large particles during polymerization reaction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Put the following components by weight: 350g of butyl acrylate, 300g of 2-isooctyl acrylate, 250g of acrylic acid, 30g of 4-hydroxyethyl acrylate, and 1.2g of azobisisobutylcyanide into the mixing equipment, stir and mix evenly, that is Yes; the binary content of the above-mentioned acrylic acid is 0.75g, the storage temperature of acrylic acid is 25 degrees Celsius, and the storage period is within 80 days after the production of acrylic acid.

Embodiment 2

[0014] Put the following components by weight: 350g of butyl acrylate, 300g of 2-isooctyl acrylate, 250g of acrylic acid binary body, 30g of 4-hydroxyethyl acrylate, and 1.2g of azobisisobutylcyanide, put them into the mixing equipment, stir and mix Uniform, enough; the binary content in the above-mentioned acrylic acid is 3.75g, the storage temperature of acrylic acid is 25 degrees centigrade, and the storage period is within 80 days after the production of acrylic acid.

Embodiment 3

[0016] Put the following components by weight: 350g of butyl acrylate, 300g of 2-isooctyl acrylate, 250g of acrylic acid binary body, 30g of 4-hydroxyethyl acrylate, and 1.2g of azobisisobutylcyanide, put them into the mixing equipment, stir and mix Uniform, that is enough; the binary content in the above-mentioned acrylic acid is 8.5g, the storage temperature of acrylic acid is 25 degrees centigrade, and the storage period is within 80 days after the production of acrylic acid.

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Abstract

The invention discloses a method for preventing resin from tackifying and generating large particles during polymerization reaction, and relates to the technical field of resin processing. The method comprises the following steps of: adding the following components by weight: 350g of butyl acrylate, 300g of 2-isooctyl acrylate, 250g of acrylic acid, 30g of 4-hydroxyethyl acrylate and 1.2 g of azobisisobutyronitrile into mixing equipment, and stirring and mixing well. The content of dimer in the acrylic acid is 0.75-3.75 g, the storage temperature of the acrylic acid is 25 DEG C, and the storage period is within 80 days after the acrylic acid is produced. According to the invention, acrylic resin and acrylate resin with good quality can be prepared, wherein the acrylic resin and acrylate resin do not have the problems of large particles and tackifying, and the problems of overlarge load of a stirrer and poor filtration of a product are avoided.

Description

technical field [0001] The invention relates to the technical field of resin processing, in particular to a method for preventing resin from increasing viscosity and generating large particles during polymerization. Background technique [0002] Conventional methods for producing acrylic resins or acrylate resins in aqueous polymer dispersions or organic solvents have problems in that the viscosity of the polymerization reaction liquid rises rapidly, excessive load is placed on the mixer, and the cost of the reaction device increases. In addition, due to thickening, there will be parts with poor stirring, which will further cause problems of thickening and large particles, as well as the problem of poor product filtration due to this reason. Viscosification in acrylic resin or acrylate resin Whether in water system or solvent system, in the manufacture of acrylic resin or acrylate resin, if an unfavorable crosslinking reaction occurs or high molecular weight is caused, it wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/18C08F220/06C08F220/20
CPCC08F220/1804C08F220/1808C08F220/06C08F220/20
Inventor 都佩华高俊刘宁宁秦佳伟
Owner 常州都铂高分子有限公司
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