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Benzoxazine colophony based on renewable resources, its composition and preparing method thereof

A renewable resource, benzoxazine technology, applied in the field of benzoxazine resin, to achieve the effect of improved toughness, small shrinkage, and low porosity

Inactive Publication Date: 2009-10-07
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] So far, there is no research on the use of phenols derived from renewable resources, such as eugenol, guaiacol, and cardanol, and diamines derived from renewable resources, such as decanediamine, to prepare benzos through dehydration and ring formation of formaldehyde. Report on Oxazine Resin

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 41 grams (0.25 mol) of eugenol and 21.5 g (0.125 mol) of decanediamine were added to 200 ml of toluene to make it completely dissolved, and 30 g (0.5 mol) 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, add lye to stir and mix, then pour into a separatory funnel to separate the product, continue to wash with lye, then wash with deionized water until neutral, pour it into a porcelain plate and vacuum dry for 24 hours to obtain a reddish-brown solid. Yield 90%. Subsequently, various characterization tests were carried out on the product, and the results proved to be the desired product.

Embodiment 2

[0025] As described in Example 1, only 31 grams of guaiacol (0.25 mol) was replaced with eugenol, and the product obtained was a light yellow solid with a yield of 96%. Various characterization tests were carried out on the product, and the results showed that it was the desired product.

Embodiment 3

[0027] As described in Example 1, only 75.1 grams of cardanol (0.25 mol) was replaced with eugenol, and the synthesized product was a white solid with a yield of 94%. Various characterization tests were carried out on the product, and the results showed that it was the expected product.

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PUM

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Abstract

The invention relates to a kind of benzoxazine colophony whose materials come from renewable resources, its composition and preparing method. This kind of benzoxazine colophony is prepared with phenols stemmed from the renewable resources, such as eugenol, guaiacol and cardanol, and diamine stemmed from the renewable resources such as decamethylene diamine, and cavaform or triformol or formaldehyde liquid. The relevant composition is prepared with this kind of benzoxazine colophony and other heat-convertibleresin. The benzoxazine and its composition can be used in many fields such as coatings, thermosetting plastics, matrix colophony of composite materials and so on.

Description

technical field [0001] The invention relates to a class of benzoxazine resins and compositions whose raw materials are derived from renewable resources 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 Diamines derived from renewable resources, such as decanediamine (1,10-diaminodecane), and formaldehyde are dehydrated to form a benzoxazine resin; and the resin is prepared by blending with other thermosetting resins combination. 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 sim...

Claims

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Application Information

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IPC IPC(8): C08G73/06C08L79/04
Inventor 徐日炜李铎张朋立赵海川吴一弦余鼎声
Owner BEIJING UNIV OF CHEM TECH
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