聚砜改性环氧树脂复合材料热老化性能研究  

Study on thermal aging properties of epoxy resin composite modified by polysulfone

作　　者：李珺鹏[1] 齐暑华[1] 齐海元[1] 谢璠[1] 

机构地区：[1]西北工业大学理学院应用化学系,陕西西安710072

出　　处：《中国胶粘剂》2011年第2期22-25,共4页China Adhesives

摘　　要：以聚砜(PSF)改性环氧树脂(EP)为基体树脂,玻璃纤维为增强材料,采用高温模压成型法制备出PSF改性EP/玻璃纤维复合材料。结果表明:PSF能有效提高EP基体的热稳定性能;经200℃热老化72 h后,PSF改性EP/玻璃纤维复合材料的热失重率<1%,其冲击强度和弯曲强度呈先升后降态势,电绝缘性能仍然较好(其体积电阻率和表面电阻率的数量级仍保持在1012左右);该复合材料在高温绝缘场合中具有良好的应用前景。With epoxy resin（EP） modified by polysulfone（PSF） as matrix resin,glass fiber as reinforcing material,so an EP modified by PSF/glass fiber composite was prepared by moulding at high temperature.The results showed that the PSF could effectively improve the thermal stability of EP matrix resin.The EP modified by PSF/glass fiber composite had well application prospect in high temperature insulation because its weight loss was less than 1%,impact strength and bend strength had trend of rise-fall,insulating property was still perfect（the order of magnitude for volume resistivity and surface resistivity at 1012 about） after thermal aging at 200 ℃ for 72 h.

关 键 词：环氧树脂 聚砜 玻璃纤维 复合材料 热老化 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业]