摘要
导电填料石墨烯纳米片(GNPs)通过高速混合包覆于聚苯硫醚(PPS)树脂基体颗粒表面,再通过热压成型制备出具有完善隔离结构的PPS/GNPs复合材料.采用光学显微镜、扫描电子显微镜、电导率测试、电磁屏蔽性能测试对复合材料导电网络形貌、电性能和电磁屏蔽性能进行表征.结果表明,复合材料具有完善的隔离结构导电网络;隔离结构复合材料具备优异的电导率和电磁屏蔽效能(EMI SE),当GNPs含量为3.0%(质量分数,下同)时,复合材料的电导率和EMI SE分别为25.6 S/m和41.0 dB.
The graphene nanoplates(GNPs) were used as a type of conductive filler and coated onto the surface of polyphenylene sulfide(PPS) granules through high-speed mixing, and then the PPS/GNPs composites with a segregated structure were fabricated by compression molding. The morphology, electrical properties and electromagnetic interference shielding performance of the composites were investigated by use of optical microscope, scanning electron microscope, electrometer and vector network analyzer. The results indicated that there was a perfect segregated structure formed within the composites. With such a segregated structure, the composites exhibited outstanding electrical conductivity and electromagnetic interference shielding effectiveness(EMI SE). The composites achieved an electrical conductivity of 25.6 S/m and a high EMI SE of 41.0 dB when 3.0 wt% GNPs was incorporated.
作者
曹轶
杨家操
王孝军
张刚
龙盛如
杨杰
CAO Yi;YANG Jiacao;WANG Xiaojun;ZHANG Gang;LONG Shcngru;YANG Jie(College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China;Analytical and Testing Center, Sichuan University, Chengdu 610064, China;State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065. China)
出处
《中国塑料》
CAS
CSCD
北大核心
2019年第8期1-5,共5页
China Plastics
基金
国家自然科学基金(51573103)
关键词
聚苯硫醚
石墨烯纳米片
隔离结构
电磁屏蔽
polypropylene sulfide
graphene nanoplate
segregated structure
electromagnetic interference
