聚醚醚酮/多壁碳纳米管复合材料力学及阻燃性能研究  

Mechanical and Flame Retardant Properties of PEEK/MWCNT Composites

作　　者：王志[1] 雷卓研 张晓玲 杨甜甜[1] 徐艳英[1] 

机构地区：[1]沈阳航空航天大学,辽宁省通用航空重点实验室,辽宁沈阳110136 [2]航天精工股份有限公司,天津300300

出　　处：《中国塑料》2014年第11期42-46,共5页China Plastics

基　　金：辽宁省高等学校杰出青年学者成长计划(LJQ2012014)

摘　　要：通过熔融共混法将聚醚醚酮(PEEK)与多壁碳纳米管(MWCNT)混合,利用模压法制备了MWCNT增强型PEEK复合材料,研究了MWCNT对PEEK性能的影响。结果表明,添加一定比例的MWCNT能够提高PEEK的力学和阻燃性能;当MWCNT含量为5%(质量分数,下同)时,PEEK的弯曲强度提高了53%;当MWCNT含量为1%时,锥形量热法测得的热释放速率峰值最低,燃烧性能指数最大,热重分析显示初始分解温度较纯PEEK提高了13℃,表明MWCNT有效地提高了PEEK的阻燃和热稳定性能。Poly(ether ether ketone)(PEEK)and multi-walled carbon nanotubes(MWCNT)were mixed via melt blending leading to composites.The effect of MWCNT on properties of PEEK was analyzed.It showed that a certain amount of MWCNT could improve the mechanical and flame retardant properties of PEEK.When 5 %(mass content)of MWCNT was added,the flexural strength increased by 53 %.When the mass content of MWCNT was 1 %(mass comtent),the composites had minimum peak heat release rate and maximum cone calorimetry combustion index value.Thermogravimetric analysis showed that the initial decomposition temperature was increased about 13 ℃,which indicates that MWCNT effectively improve the flame retardant and thermal stability of PEEK.

关 键 词：聚醚醚酮 多壁碳纳米管 复合材料 力学性能 阻燃 

分 类 号：TQ325[化学工程—合成树脂塑料工业]