聚苯硫醚/碳纳米管复合材料的导电和力学性能  

Electrical and Mechnical Properties of Poly(Phenylene Sulfide)/Carbon Nanotubes Composites

作　　者：吴兰峰[1,2] 吴德峰[1,2] 张明[1,2] 

机构地区：[1]扬州大学化学化工学院 [2]江苏省环境材料与环境工程重点实验室,江苏扬州225002

出　　处：《高分子材料科学与工程》2009年第8期36-39,共4页Polymer Materials Science & Engineering

基　　金：江苏省青年科技创新人才启动项目(BK2007559)

摘　　要：采用熔融共混制备了聚苯硫醚/碳纳米管复合材料,考察了复合材料的形态、导电及力学性能。结果表明,碳纳米管均匀分散于聚苯硫醚基体中,二者的界面结合紧密;少量碳纳米管的加入即可显著增加复合材料的导电性,其逾渗阀值约为2 phr～3 phr;与聚苯硫醚相比,复合材料的拉伸及冲击强度全面提高,但由于碳纳米管的微观聚集与其应力传递作用间相互矛盾,因此过多的碳纳米管对材料力学性能贡献不大,这也得到了动态力学性能测试的进一步证实。Poly（phenylene sulfide）/carbon nanotubes composites （PPS/CNTs） were prepared via melt mixing. The morphology, electrical and mechanical properties of PPS/CNTs composites were studied. The results indicate that CNTs show nice dispersion in the PPS matrix, which leads to a remarkable enhancement in the performance of the composites. Small addition of CNTs increases the conductivity of the composites dramatically. The percolation threshold is about 2 phr-3 phr. Compared with those of neat PPS, both the tensile strength and impact strength of the composites increase, especially at low CNTs loadings. However, excessive addition of CNTs has no remarkable contribution to the enhancement of mechanical properties due to the contradiction between the effect of load transfer and aggregation of CNTs, which is further confirmed by the dynamic thermal mechanical analysis （DTMA）.

关 键 词：聚苯硫醚 碳纳米管 复合材料 电性能 力学性能 

分 类 号：TB383[一般工业技术—材料科学与工程]