中国塑料 ›› 2012, Vol. 26 ›› Issue (09): 52-55 .DOI: 10.19491/j.issn.1001-9278.2012.09.011

• 材料与性能 • 上一篇    下一篇

环氧树脂/POSS杂化材料力学性能和耐热性研究

辛存良 马晓燕 宋春莹 侯宪冰 屈小红   

  1. 西北工业大学理学院应用化学系 西北工业大学理学院应用化学系 西北工业大学理学院应用化学系 西北工业大学理学院应用化学系
  • 收稿日期:2012-05-22 修回日期:1900-01-01 出版日期:2012-09-26 发布日期:2012-09-26

Study on Mechanical Properties and Thermal Stability on

  

  • Received:2012-05-22 Revised:1900-01-01 Online:2012-09-26 Published:2012-09-26

摘要: 以自行合成的环氧基倍半硅氧烷(POSS)为改性剂,分别对环氧树脂139S/六氢苯酐和环氧树脂BE188EL/六氢苯酐进行改性,制备环氧树脂/POSS杂化材料。力学性能分析结果表明,两种杂化材料的冲击强度和弯曲强度都有明显的提高,冲击强度分别提高了57.45 %和32.26 %,弯曲强度分别提高了9.23 %和5.07 %。热性能分析结果表明,两种杂化材料在高温时的热残留量都有所提高,分别提高了50.19 %和20.16 %。两种杂化材料的热膨胀系数也得到了降低,即热稳定性得到了提高。

关键词: 环氧树脂, 笼形倍半硅氧烷, 力学性能, 热性能, 热膨胀系数

Abstract: Two epoxy resin systems (139S and BE188EL cured with hexahydrophthalic anhydride) were modified with 3glycidoxypropyl polyhedral oligomeric silsesquioxane cage (POSS) led to POSS/epoxy hybrid materials. The impact strengths of the two epoxy systems were increased by 57.45 % and 32.26 %, the flexural strength were increased by 9.23 % and 5.07 %,and the thermal residual weight increased by 50.19% and 20.16%. Meanwhile, the coefficients of thermal expansion was lowered.

Key words: epoxy resin, polyhedral oligomeric silsequioxane, mechanical properties, thermal stability, coefficient of thermal expansion