Effect of Ratio of Copper Fiber/Copper Powder on Electrical Conductivity and Hardness of Copper/Graphite/Phenolic Resin Composites

摘要：

Composites made of phenolic resin filled with graphite platelets and copper particles (copper powder, copper fiber or both mixture), are fabricated by mechanical mixing, followed by compression molding. SEM micrograph indicates that the fillers are homogenously dispersed in composite. The electrical conductivity of composite composed of 30 wt％ resin, 50 wt％ graphite and 20 wt％ copper particle (10/10 wt/wt copper powder/copper fiber) is up to 65S/cm. The efficiency of copper fiber is compared with copper powder. The results show that copper fiber is more effective than copper powder in improving electrical conductivity for copper homogenously dispersed composite. The particle shape is also a principal factor in influencing hardness. In this study, the hardness of composites tends to increase with decreasing the ratio of copper fiber/copper powder.

关键词： composites electrical conductivity hardness copper

作者: Midan Li Shoubin Wei Huan Niu Hong Yang

作者单位: Beijing Institute of Graphic Communication, 25 Xing Hua North Road, Beijing 102600, PR China School Beijing Institute of Graphic Communication, 25 Xing Hua North Road, Beijing 102600, PR China

会议类型: 国际会议

会议名称: 2011 International Conference on Advanced Materials and Engineering Materials(2011先进材料与工程材料国际会议 ICAMEM 2011)

会议地点: 沈阳

会议语种:英文

页码: 11-14

在线出版日期: 2011-11-22（万方平台首次上网日期，不代表论文的发表时间）