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Method for producing easy-curing phenolic resin

A technology of phenolic resin and production method, which is applied in the field of phenolic resin preparation, can solve the problems of low curing rate of modified phenolic resin and affect production efficiency, and achieve the effects of increasing curing rate, promoting compatibility, and improving compatibility

Inactive Publication Date: 2019-01-04
枣阳市众成化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] It is disclosed above that although the modified phenolic resin has improved moisture resistance and heat resistance, the curing rate of this modified phenolic resin is low, which affects the production efficiency when the enterprise uses it.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] S1: Add 540kg of p-tert-butylphenol, 547.2kg of formaldehyde and 1.6kg of lime into the autoclave, stir and mix evenly, and heat. The weight ratio of p-tert-butylphenol to formaldehyde is between 1:1 and 1.5, and the weight ratio of formaldehyde to lime can be between 300 and 350:1. In this embodiment, the above ratio is used for the test.

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Abstract

The invention relates to the technical field of preparation of a phenolic resin, in particular to a method for producing an easy-curing phenolic resin. The method can significantly improve the curingrate of the phenolic resin, thereby improving the production efficiency in use. The method comprises the main steps of S1, adding tert-butylphenol, formaldehyde and lime to an autoclave, stirring andmixing uniformly, and heating; S2, raising the temperature in the autoclave to 80-100 DEG C, controlling the temperature to be stable, and carrying out a reaction; S3, adding hydrochloric acid and toluene to the autoclave; S3', adding a modifier to the autoclave; S4, transferring reaction liquid to a discharge tank, metering and packing.

Description

technical field [0001] The invention belongs to the technical field of phenolic resin preparation, in particular to a production method of an easily curable phenolic resin. Background technique [0002] Phenolic resin is one of the earliest polymers synthesized. It not only has excellent bonding performance to a wide range of materials, but also has heat resistance, water resistance, acid resistance, solvent resistance, electrical insulation and other characteristics. A polymer with a wide range of applications. [0003] The Chinese invention patent with the publication number CN102276775A discloses a modified phenolic resin and a phenolic resin composition. In this technology, the modified phenolic resin is obtained by reacting xylene formaldehyde resin and phenolic resin. It uses xylene formaldehyde resin to modify high ortho phenolic resin. The molecular structure of xylene formaldehyde resin contains active groups such as ether bond and hydroxyl group. The ether bond ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G8/28C08G8/12
CPCC08G8/12C08G8/28
Inventor 马保方
Owner 枣阳市众成化工有限公司
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