宇航材料工艺2018，Vol.48Issue(2)：35-39,5.DOI:10.12044/j.issn.1007-2330.2018.02.007
碳纤维添加碳泡沫的电磁屏蔽效能及力学性能研究
Electromagnetic Interference Shielding and Mechanical Performances of Carbon Fiber Added Carbon Foam Composites
摘要
Abstract
In order to prepare the composites with excellent electromagnetic shielding performance and mechanical properties,the carbon fiber modified phenolic carbon foam was prepared by high temperature carbonization with phenolic resin as matrix and carbon fiber as filler.The effects of carbon fiber content on the composite cell structure,electromagnetic shielding effectiveness and mechanical properties were investigated.The results show that the carbon fiber can improve the carbon foam cell structure effectively,when the content of carbon fiber is 3wt％,the phenolic foam matrix show smallest cell size and most uniform cells distribution,the average cell diameter is 150μm.Carbon fiber can effectively improve the carbon foam electromagnetic and mechanical properties.The compressive strength and flexural strength of the composites reach 4.41 and 3.85MPa,which has increased by 60.3％ and 71.8％,respectively,compared with pure carbon foam.When the carbon fiber content is 5wt％,the average electromagnetic shielding effect of the carbon foam on the frequency of 8 ～ 12GHz is 35dB.When the carbon fiber content is 3wt％,the carbon foam composites show the best mchanical properties.关键词
碳泡沫/碳纤维/泡孔结构/电磁屏蔽效能/压缩性能/弯曲性能Key words
Carbon foams/Carbon fiber cell structure/Electromagnetic shielding effectiveness/Compression property/Flexural property分类
化学化工引用本文复制引用
罗霞,俞科静,钱坤..碳纤维添加碳泡沫的电磁屏蔽效能及力学性能研究[J].宇航材料工艺,2018,48(2):35-39,5.基金项目
中央高校基本科研业务费专项资金资助(JUSRP51505) （JUSRP51505）
江苏省研究生培养创新工程(KYLX15_1182) （KYLX15_1182）
江苏省产学研联合创新资金-前瞻性联合研究项目(BY2015019-33) （BY2015019-33）
连云港市产业前瞻与共性关键技术科技项目(CG1520) （CG1520）
江苏省自然科学基金)-青年基金项目(BK20160157) （BK20160157）
江苏省产学研联合创新资金-前瞻性联合研究项目(BY2016022-07) （BY2016022-07）
江苏高校优势学科建设工程资助项目(PAPD) （PAPD）
