Poly-o-phthalonitrile resin and its preparing process

A polyphthalonitrile resin and a technology for polyphthalonitrile are applied in the field of polyphthalonitrile resin and its preparation, and can solve the problem of increasing the steps of resin processing, increasing the processing cost, and the amount of the two components of the resin. It is difficult to obtain changes, etc., to achieve the effect of suppressing volatility and improving thermal stability

Inactive Publication Date: 2008-03-19
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Obviously, this not only increases the steps of resin processing, but also increases the processing cost, and it is difficult to change the dosage of the two components of the resin

Method used

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  • Poly-o-phthalonitrile resin and its preparing process
  • Poly-o-phthalonitrile resin and its preparing process
  • Poly-o-phthalonitrile resin and its preparing process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0131] Add 1 part of 4 / 3-(4-aminophenoxy)phthalonitrile and 99 parts of resorcinol-polyaryl ether nitrile into methanol to make them uniformly dispersed, heat up to 60°C and stir and mix, then reduce The mixture was obtained by removing the solvent under pressure; the mixture was solidified in turn according to the following procedures: heating at 200°C for 2 hours; heating at 260°C for 3 hours; heating at 325°C for 2 hours; heating at 350°C for 4 hours; heating at 375°C for 6 hours; hours.

Embodiment 2

[0133]Add 99 parts of 4 / 3-(2-aminophenoxy)phthalonitrile and 1 part of hydroquinone-polyaryl ether nitrile into N,N-dimethylformamide to dissolve it, and heat up After stirring and mixing at 20°C, remove the solvent under reduced pressure to obtain the mixture; solidify the mixture in turn according to the following procedures: heating at 200°C for 2 hours; heating at 260°C for 2 hours; heating at 325°C for 4 hours; heating at 350°C for 4 hours; heating at 375°C It can be heated for 8 hours.

Embodiment 3

[0135] Add 10 parts of 4 / 3-(3-aminophenoxy)phthalonitrile and 90 parts of 6F bisphthalonitrile into n-propanol to disperse them evenly, raise the temperature to 90°C, stir and mix, then reduce The mixture was obtained by removing the solvent under pressure; the mixture was solidified according to the following procedures: heating at 150°C for 4 hours; heating at 250°C for 2 hours; heating at 300°C for 4 hours; heating at 350°C for 2 hours.

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Abstract

The precent invention discloses a poly-o-phthalonitrile resin and a preparetion method. After the solution blending, fusion blending or physical blending of 1 to 99 percent of o-phthalonitrile derivative with amino group or hydroxyl group and 1 to 99 percent of polyethernitrile with amino group or hydroxyl group, or 1 to 99percent of o-phthalonitrile derivative with amino group or hydroxyl group and 1 to 99 percent of o-phthalonitrile derivative, or 1 to 99 percent of polyethernitrile with amino group or hydroxyl group and 1 to 99 percent of o-phthalonitrile derivative, or 1 to 98 percent of o-phthalonitrile derivative with amino group or hydroxyl group, 1 to 98 percent of polyethernitrile with amino group or hydroxyl group and one to ninety eight percent of o-phthalonitrile derivative, the compound is solidified, so that the poly-o-phthalonitrile resin is prepared. Because the invention uses the o-phthalonitrile derivative with amino group or hydroxyl group or / and the polyethernitrile to prepare the poly-o-phthalonitrile resin, the performance of the resin can be regulated and controlled in a wide range, and the tenacity of the poly-o-phthalonitrile resin can also be increased, thus broadening the application field of the resin. The invention also has the advantages of simple steps and low cost.

Description

technical field [0001] The invention belongs to the technical field of polyphthalonitrile resins and preparation methods thereof, in particular to a method for preparing polyphthalonitrile resins and methods thereof through novel phthalonitrile derivatives and / or polyether nitriles, more precisely The said is a kind of phthalonitrile derivative and / or polyether nitrile with hydroxyl group or amino group as component to prepare polyphthalonitrile resin and its method. Background technique [0002] Polyphthalonitrile resin is a high-performance thermosetting resin with excellent thermal properties and high-temperature mechanical properties. It has been widely used as a matrix resin for high-performance composite materials and high-temperature-resistant hot-melt adhesives for aerospace and other high-tech field. [0003] At present, polyphthalonitrile resins are phthalonitrile derivatives terminated by phthalonitrile structural units, which are a class of high-performance ther...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G73/00
Inventor 杨刚曾科周鸿飞周柯缪培凯唐文睿唐艳王宜鹏刘韬
Owner SICHUAN UNIV
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