Preparation technology of phenolic resin with high adhesive force

A phenolic resin and preparation technology, which is applied in the field of preparation of high adhesion phenolic resin, can solve the problems of affecting production efficiency and low curing rate of modified phenolic resin, so as to increase curing rate, improve compatibility, and promote compatibility sexual effect

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

[0027] 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.

[0028] S2: When the temperature in the reactor reaches 90-100°C, the temperature is controlled to be stable, and p-tert-butylphenol and formaldehyde start to react under the action of catalyst lime, which lasts for about 10 hours.

[0029] S3: Add 24kg of hydrochloric acid and 48kg of toluene into the reactor, continue the reaction and concentrate. A large amount of waste gas is generated in this step reaction, and the generated waste gas is transported to the condenser for condensation, and the condenser is filled with cold water to absorb and condense the waste gas.

[0030] S4: transfer the concentrated reaction solution to the ...

Embodiment 2

[0032] S1: Add 540kg of p-tert-butylphenol, 540kg of formaldehyde and 1.8kg of lime into the autoclave, stir and mix evenly, and heat.

[0033] S2: When the temperature in the reactor reaches 90-100°C, the temperature is controlled to be stable, and p-tert-butylphenol and formaldehyde start to react under the action of catalyst lime, which lasts for about 10 hours.

[0034] S3: Add 24kg of hydrochloric acid and 48.8kg of toluene into the reactor, continue the reaction and concentrate. A large amount of waste gas is generated in this step reaction, and the generated waste gas is transported to the condenser for condensation, and the condenser is filled with cold water to absorb and condense the waste gas.

[0035] S3': Add hydrogenated palmityl primary amine to the reaction kettle, continue heating, maintain at 100-110°C, and stir.

[0036] S4: Transfer the concentrated reaction solution to the discharge tank, measure and package, and finally obtain 790 kg of packaged products...

Embodiment 3

[0038] S1: Add 540kg of p-tert-butylphenol, 648kg of formaldehyde and 1.85kg of lime into the autoclave, stir and mix evenly, and heat.

[0039] S2: When the temperature in the reactor reaches 80-90°C, the temperature is controlled to be stable, and p-tert-butylphenol and formaldehyde start to react under the action of catalyst lime, which lasts for about 10 hours.

[0040] S3: Add 25kg of hydrochloric acid and 50kg of toluene into the reactor, continue the reaction and concentrate. A large amount of waste gas is generated in this step reaction, and the generated waste gas is transported to the condenser for condensation, and the condenser is filled with cold water to absorb and condense the waste gas.

[0041] S3": Conduct electrolysis experiments on the reaction solution in the reactor. The reactor is both an electrolytic cell, and the two electrodes are platinum electrodes and graphite electrodes.

[0042] S4: transfer the concentrated reaction solution to the discharge ta...

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PUM

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Abstract

The invention relates to the technical field of phenolic resin preparation, in particular to a preparation technology for phenolic resin with high adhesive force. The curing rate of the phenolic resincan be obviously increased, and therefore the production efficiency during usage can be improved. The technology comprises the main steps that S1, p-tert-butyl phenol, formaldehyde and lime are addedinto a high pressure reaction kettle, stirred and mixed to be uniform, and heated; S2, after the temperature inside the reaction kettle is increased to 80-100 DEG C, the temperature is controlled tobe stable, and a reaction is performed; S3, hydrochloric acid and methylbenzene are added into the reaction kettle; S3', hydrogenated palm base primary amine is added into the reaction kettle; S4, a reaction solution is transferred into a discharging pool, and metering and packaging are performed.

Description

technical field [0001] The invention belongs to the technical field of phenolic resin preparation, and in particular relates to a preparation process of high adhesion 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 eth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G14/06
CPCC08G14/06
Inventor 马保方
Owner 枣阳市众成化工有限公司
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