导电聚合物复合材料的产热特性及电阻焊接工艺  

Heating characteristics of conductive polymer matrix composites and resistance welding of polymer

作　　者：郭青 李瑞琦[1] 陈征 叶广郁[2] 高飞[2] 

机构地区：[1]哈尔滨工程大学材料科学与化学工程学院,哈尔滨150001 [2]哈尔滨工业大学先进焊接与连接国家重点实验室,哈尔滨150001

出　　处：《焊接学报》2013年第5期79-82,117,共4页Transactions of The China Welding Institution

基　　金：国家自然科学基金资助项目(50975054);哈尔滨市科技创新人才研究专项资金项目(2010RFQXG020);先进焊接与连接国家重点实验室开放课题重点项目

摘　　要：以丙烯腈-丁二烯-苯乙烯塑料(ABS)为基体,导电聚苯胺(PANI)和导电炭黑(CB)作为填充剂制备了导电聚合物基复合材料,测试分析了聚合物复合材料在不同焊接电压下焊接界面处温度随焊接时间的变化规律,并以其作为加热电阻研究了聚碳酸酯(PC)的电阻焊接工艺.结果表明,焊接电压和焊接时间对焊接效果的影响很大.选定较为合适的功率,在一定焊接时间内可以达到适合的焊接温度,接头的焊接界面处聚合物电阻片与母材有互融出现,形成了很好的接合,其接头强度达到了25.4 MPa.探索了采用导电聚合物为产热器件进行塑料电阻焊接的新方法.Conductive polymer matrix composites were prepared by using acrylonitrile-butadiene-styrene(ABS),conductive polyaniline(PANI) and conductive carbon black(CB).The relationship of the temperature during the welding with the welding time under different welding voltage was examined.The resistance welding of polycarbonate(PC) was investigated by using the conductive polymer matrix composites as a heating resistor.Results indicate that the welding voltage and welding time have a strong effect on the interface bonding in resistance welding.Within a suitable power,the optimal welding temperature can be obtained in fixed time.A desired joint is formed at the welding interface due to the mutual melting phenomenon between polymer resistor and base materials,and the joint strength reaches up to 25.4 MPa.A novel method for plastic resistance welding using conductive composite materials as the heating device was explored in this research work.

关 键 词：电阻焊 塑料焊接 导电聚苯胺 导电复合材料 

分 类 号：TQ317.9[化学工程—高聚物工业]