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Acenaphthene type polyphenyl copolymerized allyl phenolic aldehyde active dilute resin and preparation method thereof

A polyphenyl-copolymerized allyl phenolic and reactive dilution technology, applied in the field of resin and its preparation, can solve the problems of long reaction time, complicated modification process, cost reduction and the like

Active Publication Date: 2017-01-11
SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Researchers have made a lot of efforts on phenolic modification, but there are still some problems, such as complex modification process, long reaction time, low efficiency, limited cost reduction, etc.

Method used

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  • Acenaphthene type polyphenyl copolymerized allyl phenolic aldehyde active dilute resin and preparation method thereof
  • Acenaphthene type polyphenyl copolymerized allyl phenolic aldehyde active dilute resin and preparation method thereof
  • Acenaphthene type polyphenyl copolymerized allyl phenolic aldehyde active dilute resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Add 100g of phenol solution and sodium hydroxide solution into the reaction kettle at about 65°C in sequence, then add 65g of paraformaldehyde into the reaction kettle in 3 times within half an hour, stir at high speed to mix evenly, react for 30min, and take 5 Slowly raise the temperature to 90°C at the rate of ℃ / min, stir at constant temperature for 1.5h, then cool to room temperature, neutralize the resin liquid with acetic acid, and then evaporate the small molecules in the system under reduced pressure until no liquid is discharged, and the viscous liquid is obtained as Phenolic Resin.

[0020] The synthesized phenolic resin is reacted with allyl chloride to generate allyl ether phenolic resin, and the resin undergoes Claisen rearrangement reaction at high temperature to generate allyl phenolic resin. At the same temperature, add 3g of acenaphthene-type cyclopentadienone and allyl resin to undergo Diels-Alder reaction, and finally obtain acenaphthene-type polypheny...

Embodiment 2

[0022] Add 100g of phenol solution and sodium hydroxide solution into the reaction kettle at about 65°C in sequence, then add 65g of paraformaldehyde into the reaction kettle in 3 times within half an hour, stir at high speed to mix evenly, react for 30min, and take 5 Slowly raise the temperature to 90°C at the rate of ℃ / min, stir at constant temperature for 1.5h, then cool to room temperature, neutralize the resin liquid with acetic acid, and then evaporate the small molecules in the system under reduced pressure until no liquid is discharged, and the viscous liquid is obtained as Phenolic Resin.

[0023] The synthesized phenolic resin is reacted with allyl chloride to generate allyl ether phenolic resin, and the resin undergoes Claisen rearrangement reaction at high temperature to generate allyl phenolic resin. At the same temperature, add 6g of acenaphthene-type cyclopentadienone and allyl resin to undergo Diels-Alder reaction, and finally obtain acenaphthene-type polypheny...

Embodiment 3

[0025] Add 100g of phenol solution and sodium hydroxide solution into the reaction kettle at about 65°C in sequence, then add 65g of paraformaldehyde into the reaction kettle in 3 times within half an hour, stir at high speed to mix evenly, react for 30min, and take 5 Slowly raise the temperature to 90°C at the rate of ℃ / min, stir at constant temperature for 1.5h, then cool to room temperature, neutralize the resin liquid with acetic acid, and then evaporate the small molecules in the system under reduced pressure until no liquid is discharged, and the viscous liquid is obtained as Phenolic Resin.

[0026] The synthesized phenolic resin is reacted with allyl chloride to generate allyl ether phenolic resin, and the resin undergoes Claisen rearrangement reaction at high temperature to generate allyl phenolic resin. At the same temperature, add 9g of acenaphthene-type cyclopentadienone and allyl resin to undergo Diels-Alder reaction, and finally obtain acenaphthene-type polypheny...

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Abstract

The invention relates to an acenaphthene type polyphenyl copolymerized allyl phenolic aldehyde active dilute resin and a preparation method of the acenaphthene type polyphenyl copolymerized allyl phenolic aldehyde active dilute resin, and relates to a resin and the preparation method of the resin. The allyl phenolic aldehyde resin is generated by the reaction of compounded phenolic resin and chloropropene; the resin generates Claisen rearrangement reaction under high temperature, and further generates allyl phenolic aldehyde resin; under the same temperature, acenaphthene type cyclopentadiene ketone and allyl resin are added to generate Diels-Alder reaction; finally, phenolic hydroxyl hydrogen in phenolic resin replaced by allyl of the acenaphthene type polyphenyl copolymerized allyl phenolic aldehyde active dilute resin is obtained; the prepared resin is relatively low in viscosity, and the resin can be used as the active dilute resin for reducing resin viscosity. Besides, an acenaphthene type polyphenyl condensed ring structure with big molecular radical group is introduced, and has Diel-Alder reaction with double keys in the allyl phenolic resin under a specific condition; multiple benzene ring groups are introduced, so that the compounded resin is possessed of high temperature resistance and thermal oxidization stability.

Description

technical field [0001] The invention relates to a resin and a preparation method thereof, in particular to an acenaphthene-type polyphenyl copolymerized allyl phenolic active dilution resin and a preparation method thereof. Background technique [0002] Phenolic resin has been widely used as a high-performance thermosetting resin. However, during the curing process of phenolic resin, small molecular substances such as condensation water or ammonia are released, and pressure is often required during molding. Moreover, the formed phenolic resin material is brittle and has pores. , The performance is not high, thus hindering the high-performance development of phenolic resin materials. [0003] The Chinese patent No. 200310113965.3 proposes to use chemical toughening method to manufacture closed-cell phenolic foam. The Chinese patent No. CN200710127849.5 uses cashew nut oil to modify phenolic resin to improve the toughness of phenolic resin and is used to prepare copper plates...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G8/30
CPCC08G8/30
Inventor 葛铁军王佳王成城徐志华唐恺鸿
Owner SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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