Preparation and Characterization of a New Electromagnetic Shielding Composites

摘要：

To improve electromagnetic shielding performance of the expanded graphite,a new electromagnetic shielding nano-composites(γ-Fe2O3/expanded graphite) was prepared by sol-gel process and self-propagating low temperature synthesis technology. The heat released by combustion of dried gel could swell the exfoliated graphite to worm-like EG. Nano-particlesγ-Fe2O3, the products of combustion were coated uniformly on the surface or internal holes of expanded graphite when the exfoliated graphite swelling. By using the coaxial network analyzer, electromagnetic shielding performance testing was carried out, the result of test showed when PH is 6 ～7, and load ofγ-Fe2O3 is 20wt％～30wt％, a comparatively satisfactory comprehensive shielding performance of the composite material could be achieved.

关键词： ezpanded graphite γ-Fe2O3 electromagnetic shielding sol-gel nano-composite

作者: ZHANG Qian JIAO Qingjie ZHAO Keyi DU Xiling HONG Qing

作者单位: Beijing Institute of Technology, Beijing, China, 100081.Shi Jiazhuang Mechanical Engineering College Beijing Institute of Technology, Beijing, China, 100081 Shi Jiazhuang Mechanical Engineering College, Shijiazhuang, Hebei, China, 050003

会议类型: 国际会议

会议名称: 第八届国际测试技术研讨会(8th International Symposium on Test and Measurement)

会议地点: 重庆

会议语种:英文

页码: 1360-1363

在线出版日期: 2009-08-01（万方平台首次上网日期，不代表论文的发表时间）