高等学校化学学报 ›› 2013, Vol. 34 ›› Issue (8): 1979.doi: 10.7503/cjcu20130281

• 高分子化学 • 上一篇    下一篇

长链双马来酰亚胺改性氰酸酯树脂及其复合材料

马鹏常1, 刘敬峰2, 范卫锋2, 孟祥胜2, 杨明3   

  1. 1. 中山职业技术学院化学工程系, 中山 528404;
    2. 中国科学院长春应用化学研究所, 长春 130022;
    3. 北京航空材料研究院, 北京 100095
  • 收稿日期:2013-03-26 出版日期:2013-08-10 发布日期:2013-07-19
  • 通讯作者: 杨明,男,博士,高级工程师,主要从事功能复合材料研究.E-mail:ym_3006@hotmail.com;刘敬峰,男,助理研究员,主要从事基体树脂研究.E-mail:austin@ciac.jl.cn E-mail:ym_3006@hotmail.com;austin@ciac.jl.cn
  • 基金资助:

    国家自然科学基金(批准号: 51173178); 国家"九七三"计划项目(批准号: 2010CB631100); 广东省中科院全面战略合作项目(批准号: 2011B090300037)和中山市产学研结合项目(批准号: 2012PT009)资助.

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

摘要:

制备了长链双马来酰亚胺改性的氰酸酯树脂及其复合材料, 并对其进行了表征. 结果表明, 当长链双马树脂(MTHMI)占改性树脂的质量分数为37.5%时, 改性树脂(MTI/T3)的5%热失重温度为414℃, 复合材料在室温和200℃时的拉伸强度分别为431.2和331.0 MPa, 弯曲强度分别为631.5和278.4 MPa, 复合材料的X-Y轴热膨胀系数为18.1×10-6-1, 吸湿率为1.4%. 实验结果表明, 该类树脂与普通双马改性氰酸酯树脂及分别由质量分数为20%和30% MTHMI改性的氰酸酯树脂MTI/T1和MTI/T2相比, 具有良好的加工性, 优异的耐热性和力学性能, 较低的吸湿性和热膨胀系数.

关键词: 氰酸酯树脂, 双马来酰亚胺, 力学性能, 热膨胀系数, 吸湿性

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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