Chem. J. Chinese Universities ›› 2013, Vol. 34 ›› Issue (8): 1979.doi: 10.7503/cjcu20130281

• Polymer Chemistry • Previous Articles     Next Articles

Long Chain Bismaleimide Modified Cyanate Ester Resin and Its Composites

MA Peng-Chang1, LIU Jing-Feng2, FAN Wei-Feng2, MENG Xiang-Sheng2, YANG Ming3   

  1. 1. Department of Chemical Engineering, Zhongshan Polytechnic, Zhongshan 528404, China;
    2. The Engineering Center of Polymer Composite, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China;
    3. Beijing Institute of Aerospace Material, Beijing 100095, China
  • Received:2013-03-26 Online:2013-08-10 Published:2013-07-19
  • Contact: Ming Yang E-mail:ym_3006@hotmail.com;austin@ciac.jl.cn

Abstract:

A kind of long chain bismaleimide-modified cyanate ester resin and the relevant composites were prepared and characterized. The results indicate that when the resin content of the long chain maleimide-terminated thioetherimide(MIMTI) reached 37.5%(mass fraction), the T5%of the modified cyanate ester resin(MTI/T3) was 414℃. Tensile strength and flexural strength of the MTI/T3 composite were 431.2 and 331.0 MPa, 631.5 and 278.4 MPa at room temperature and 200℃, respectively. And its coefficient of thermal expansion(CTE) in X-Y axis and the moisture absorption were 18.1×10-6-1 and 1.4%, respectively. Compared to the common bismaleimide-modified cyanate ester resins, and the 20% and 30% MIMTI-modified cyanate ester resin MTI/T1 and MTI/T2, respectively, the obtained cyanate ester resin MTI/T3 exhibited good processing, excellent heat resistance and mechanical properties, low moisture absorption and low CTE.

Key words: Cyanate ester, Bismaleimide, Mechanical property, Coefficient of thermal expansion(CTE), Moisture absorption

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