Journal of South China University of Technology (Natural Science Edition) ›› 2005, Vol. 33 ›› Issue (11): 28-30.

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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)

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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