文献类型：期刊文献

中文题名：纳米Al_(2)O_(3)/聚醚砜-环氧树脂复合材料的介电性能及热稳定性能

英文题名：Dielectric Properties and Thermal Stability of Nano-Al_(2)O_(3)/Polyether Sulfone-epoxy Resin Composites

作者：吴唯[1];陈诗英[1];宗孟静子[1]

机构：[1]华东理工大学材料科学与工程学院,中德先进材料联合研究中心,上海200237

年份：2017

卷号：31

期号：20

起止页码：21

中文期刊名：材料导报

外文期刊名：Materials Reports

收录：CSTPCD;;EI(收录号：20180604758614);Scopus;北大核心:【北大核心2014】；CSCD:【CSCD2017_2018】；

语种：中文

中文关键词：纳米氧化铝;聚醚砜;环氧树脂;介电性能;热稳定性能

外文关键词：nano-Al_(2)O_(3);polyether sulfone;epoxy resin;dielectric properties;thermal stability

摘要：本实验制备了纳米Al_(2)O_(3)/聚醚砜-环氧树脂复合材料,考察了不同纳米氧化铝和聚醚砜的用量对复合体系力学和介电性能的影响,并对其热稳定性能进行了研究。结果表明:当添加1phr纳米氧化铝(Nano-Al_(2)O_(3))和5phr聚醚砜(PES)时,三元复合材料EP/5PES/1Al_(2)O_(3)的拉伸强度提高到58 MPa,断裂伸长率达到13%,冲击强度达到16.2kJ/m^(2),相比纯环氧树脂分别提高了61.1%、20.3%和8.0%。而且在100Hz的室温测试条件下,EP/5PES/1Al_(2)O_(3)材料的介电常数和介电损耗分别达到7.6和0.016,较纯环氧树脂均有一定幅度的增加。热重分析(TG)结果表明,EP/5PES/1Al_(2)O_(3)复合材料的初始分解温度为358℃,比纯环氧树脂提高了14℃,说明热稳定性有较大幅度的提高。
The nano-Al_(2)O_(3)/polyether sulfone-epoxy resin(EP/5 PES/1 Al_(2)O_(3))composites were fabricated and the effects of different nano-Al_(2)O_(3)and PES addition on the mechanical,dielectric and thermal stability properties of composite were also investigated.The results shows that the tensile strength,elongation at break and impact strength of EP/5 PES/1 Al_(2)O_(3)composite arrive at 58 MPa,13%and 16.2 kJ/m^(2),respectively,which increase by 61.1%,20.3%and 8.0%compared to the pure epoxy resin.Additionally,the EP/5 PES/1 Al_(2)O_(3)composite show higher dielectric constant and dielectric loss of 7.6 and 0.016(100 Hz)compared with the pure epoxy resin.The thermogravimetric analysis(TG)results shows that the thermal stability of EP/5 PES/1 Al_(2)O_(3)composites has been improved and its initial decomposition temperature is improved to 358℃,which is 14℃higher than that of the pure epoxy resin,indicating agreat improvement to thermal stability of composites.