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Benzoxazine resin based on furfuryl amine, composition and preparation method thereof

A technology of benzoxazine and composition, applied in the field of benzoxazine resin and composition and its preparation, to achieve the effects of small shrinkage and low porosity

Inactive Publication Date: 2010-12-01
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] So far, there is no report on the preparation of benzoxazine resin and its composition by dehydration and ring formation of furfurylamine and phenols derived from renewable resources, such as eugenol, guaiacol, cardanol, and formaldehyde

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 16.4 grams (0.1mol) of eugenol and 9.7 grams (0.1mol) of furfurylamine were added to 100ml toluene to make it completely dissolved, and 30 grams (0.5mol) of paraformaldehyde was added under stirring in an ice-water bath, and vigorously stirred at room temperature to make The reactants were mixed evenly and placed in an oil bath for reflux reaction for 2h. After the reaction is completed, add alkali solution to stir and mix, then pour into a separatory funnel to separate the product, wash with alkali for 3-4 times, then wash with deionized water until neutral, pour it into a porcelain plate and vacuum dry for 24 hours to obtain a white powdery solid. Yield 77.65%.

Embodiment 2

[0026] As described in Example 1, 12.4 grams (0.1 mol) of guaiacol was replaced by eugenol, and the product obtained was a pale yellow crystalline solid with a yield of 74.23%.

Embodiment 3

[0028] As described in Example 1, 30 grams (0.1 mol) of cardanol was replaced by eugenol, and the product obtained was a light yellow oily viscous liquid with a yield of 96.79%.

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PUM

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Abstract

The invention relates to a benzoxazine resin based on furfuryl amine, a composition and a preparation method thereof. The benzoxazine resin is prepared from phenol derived from renewable resources (for example, eugenol, guaiacol and cardanol), primary amine derived from renewable resources (for example, furfuryl amine) and an aqueous solution of paraformaldehyde or trioxymethylene or formaldehyde; and the relevant composition is a composition prepared from the benzoxazine resin and other thermosetting resins. The benzoxazine resin based on furfuryl amine and the composition thereof can be used in multiple fields of matrix resins of paint, thermosetting plastic, composite material and the like.

Description

technical field [0001] The present invention relates to a class of benzoxazine resins and compositions based on furfurylamine and a preparation method thereof. In particular, the present invention relates to phenols derived from renewable resources, such as eugenol (4-allyl-2-methoxyphenol), guaiacol (2-methoxyphenol), cardanol, and A benzoxazine resin is prepared from furfurylamine derived from renewable resources and formaldehyde through dehydration and ring formation; and a composition prepared by blending the resin with other thermosetting resins. Background technique [0002] Benzoxazine resin is a new type of thermosetting resin developed on the basis of traditional phenolic resin. It is a kind of intermediate containing heterocyclic structure synthesized from phenolic compounds, aldehydes and amine compounds. Ring-opening polymerization occurs under the action of heating or adding a catalyst to form a nitrogen-containing network similar to phenolic resin. In additio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G73/06C08L79/04C08L63/00C08L67/06C08L79/08C08L61/06C08L75/04
Inventor 徐日炜王晶张朋立李铎张立群吴一弦余鼎声
Owner BEIJING UNIV OF CHEM TECH
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