华南理工大学学报(自然科学版) ›› 2005, Vol. 33 ›› Issue (11): 28-30.

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聚苯醚/环氧树脂体系的相行为和机械性能

田勇 皮丕辉 文秀芳 程江 杨卓如   

  1. 华南理工大学 化工与能源学院,广东 广州 510640
  • 收稿日期:2005-02-02 出版日期:2005-11-25 发布日期:2005-11-25
  • 通信作者: 田勇(1977-),男,博士生,主要从事高分子材料和覆铜板基材的研究 E-mail:tian_yong_tian@163.com
  • 作者简介:田勇(1977-),男,博士生,主要从事高分子材料和覆铜板基材的研究
  • 基金资助:

    广东省自然科学基金资助项目(05006556)

Phase Behaviors and Mechanical Properties of Poly(2,6-Dimethyl-1,4-Phenylene Ether)/Epoxy Resin System

Tian Yong  Pi Pi-hui  Wen Xiu-fang  Cheng Jiang  Yang Zhuo-ru   

  1. College of Chemical and Energy Engineering,South China Univ of Tech.,Guangzhou 510640,Guangdong,China
  • Received:2005-02-02 Online:2005-11-25 Published:2005-11-25
  • Contact: 田勇(1977-),男,博士生,主要从事高分子材料和覆铜板基材的研究 E-mail:tian_yong_tian@163.com
  • About author:田勇(1977-),男,博士生,主要从事高分子材料和覆铜板基材的研究
  • Supported by:

    广东省自然科学基金资助项目(05006556)

摘要: 采用光学显微镜、扫描电镜等仪器对聚苯醚(PPE)/环氧树脂(EP)体系的相图、相态以及机械性能进行了研究.研究结果表明:PPE/EP体系表现出最高上临界温度行为,并且随着PPE相对分子质量的降低,体系的混溶性增加,最高上临界温度从430K下降到366K;在PPE/EP体系中加入三烯丙基异氰酸酯(TAlC)能够很明显地改善PPE的耐化学药品性;固化材料的拉伸强度随着固化温度的升高以及PPE含量的增加而增大,而拉伸模量则基本保持恒定,与材料的固化温度和组成无关;PPE/EP体系的韧性则随着PPE含量的增加而增加.

关键词: 聚苯醚, 环氧树脂, 相行为, 机械性能, 共混

Abstract:

The phase diagram,phase morphology and mechanical properties of poly(2,6-dimethy-1,4-phenylene e.ther)(PPE)/epoxy resin(EP)system was studied by using optical microscope and SEM,etc.The results show that PPE/EP system exhibits an UCST(Upper Critical Solution Temperature) behavior and a miscibility increasing with the decrease of relative molecular mass of PPE,resulting in a considerable shift of the UCST fron 430K to
366K,that the addition of TAIC to PPE/EP system greatly improves the solvent resistant of PPE,that the tensile strength of the cured materials increases with the increase of curing temperature and PPE content,while the tensile modulus approximately keeps constant,irrespective of curing temperature and system composition,and that the toughness of PPE/EP system increases with PPE content.

Key words: poly(2,6-dimethy-1,4-phenylene ether), epoxy resin, phase behavior, mechanical property, blend-ing