高抗冲抗静电聚碳酸酯复合材料的研制  

Development of High Impact Antistatic PC Composite

作　　者：傅轶[1] 周建波[1] 刘述梅[1] 赵建青[1] 

机构地区：[1]华南理工大学材料科学与工程学院

出　　处：《塑料工业》2008年第9期61-64,共4页China Plastics Industry

基　　金：广东省科技工业攻关项目(2004B10301031)

摘　　要：以导电炭黑、聚碳酸酯(PC)和苯乙烯-乙烯/丁烯-苯乙烯共聚物(SEBS)作为基体材料,通过熔融共混的方法制备了高抗冲抗静电复合材料。研究了炭黑类型、炭黑用量、基体树脂组成对电性能和力学性能的影响。结果表明,以高结构性的导电炭黑CB3000为导电填料,PC/SEBS在80/20质量比时,能够获得电性能和力学性能俱佳的复合材料。PC/SEBS/CB3000(90/10/3.5)体系在保持导电性能的同时实现了脆韧转变,缺口冲击强度达到50kJ/m2。经扫描电镜(SEM)分析表明,双连续结构的形成是PC/SEBS/CB复合材料实现脆韧转变的主要原因。High impact antistatic PC composite was prepared with carbon black （CB）, polycarbonate （PC） and styrene-ethylene-butylene-styrene block copolymer （SEBS） as matrix materials by means of melt blending. The effects of the type of CB, the content of CB and the composition of the matrix materials on the conductive and mechanical properties of the composite were investigated. The results showed the conductive and mechanical properties of the composite were excellent when the PC/SEBS composition was 80/20 with high structured carbon black CB3000 as conductive filler. PC/SEBS/CB3000 （90/10/3.5） composite conducted the brittle-ductile transition （BDT）, while the conductive property was kept at the same level and the Izod impact strength reached to 50 kJ/ m2. The SEM analysis showed the formation of co-continuous structure was the key factor for the BDT.

关 键 词：聚碳酸酯 苯乙烯-乙烯/丁烯-苯乙烯共聚物 炭黑 抗静电 力学性能 

分 类 号：TQ323.4[化学工程—合成树脂塑料工业]