碳纳米管改性碳纤维增强复合材料结构电容器  

Performance improvement of carbon fiber reinforcing composite structural capacitors with carbon nanotubes

作　　者：任自飞[1] 李爽[1] 李铉哲[1] 韩克清[1] 余木火[1] 

机构地区：[1]东华大学纤维改性国家重点实验室材料科学与工程学院,上海201620

出　　处：《电源技术》2012年第11期1640-1642,共3页Chinese Journal of Power Sources

摘　　要：以碳纤维/环氧树脂/碳纳米管复合材料为电极,聚对苯二甲酸乙二醇酯膜为隔膜,利用真空袋固化成型制备了结构电容器,用场发射扫描电镜观察碳纳米管在环氧树脂中的分散情况,用恒流充放电法、三点短梁弯曲法研究了结构电容器的综合性能;结果表明,加入碳纳米管可使结构电容器的电容提高77.8%,层间剪切强度提高27.7%,综合性能效率在碳纳米管含量为0.5%时达到最高值0.636。The structural capacitors were prepared by vacuum bag molding with carbon fiber/epoxy/carbon nanotubes composites used as electrode sand polyester film used as dielectric layers.The multifunctional performance of the structural capacitor was characterized by measuring the capacitance,interlaminar shear strength（ILSS） and microstructure.The effects of carbon nanotubes（CNTs） content on the performance of capacitors were studied.The results show that the capacitance and ILSS of the capacitors increases by 77.8% and 27.7% respectively owing to the addition of CNTs,compared with the capacitors without CNTs;the multifunctional efficiency reaches the highest 0.636 when the content of CNTs is 0.5%.

关 键 词：结构电容器 碳纳米管 电容 层间剪切强度 综合性能 

分 类 号：TM53[电气工程—电器]