碳纳米管/碳纤维增强聚苯硫醚复合材料研究

Preparation and Properties of Polyphenylene Sulfide Composite Enhanced by CNTs/Carbon Fibers

研究了采用碳纤维(CF)和碳纳米管(CNTs)增强聚苯硫醚(PPS)的力学性能和导电性能。实验分别采用CF和CNTs为添加剂,通过球磨混合后在平板硫化机上进行模压成型,制备出CF/PPS、CNTs/PPS和CNTs/CFPPS/复合材料。采用万能试验机测试复合材料的拉伸性能;采用数字式四探针测试仪测试材料的电导率。实验研究了CF和CNTs含量对其复合材料的导电性能和力学性能的影响,并进一步研究同时添加CF和CNTs对复合材料增强作用。通过分析复合材料的导电性能和力学性能,分别得出CF含量为20%、CNTs含量为15%时复合材料的力学性能和导电性能较理想。采用CF和CNTs同时增强PPS时,当CF添加16%、CNTs添加4%时,CNTs/CF/PPS复合材料性能较好。此外,对CF和CNTs增强机制进行初步讨论。

The mechanical performance and electrical conductivity of polyphenylene sulfide （PPS） composite enhanced by carbon fibers （CF） and carbon nanotubes （CNTs） was studied. The CF/PPS, CNTs/PPS and CNTs/CF/PPS composite materials were prepared by using CF and CNTs as additives by the compression molding in the plate vulcanizing machine, in which the raw materials were blended by the ball milling. The mechanical performance and electrical conductivity of this composite material was tested by the general tensile tester and digital four-point probe tester respec- tively. The effect of CF and CNTs contents on conductivity and mechanical performance were studied in detail. Furthermore, the enhancing effect of adding CF and CNTs simultaneously on PPS composite was researched. It was concluded that when the contents of CF and CNTs were 20% and 15% respectively, the best electrical conductivity and mechanical performance would be gained. And when the 16% CF and 4% CNTs was added, the CNTs/CF/PPS composite would have a better electrical conductivity and mechanical performance. Furthermore, the enhancing mechanism of CF and CNTs was discussed briefly.