摘要
采用共混法制备尼龙6/石墨烯微片(GNPs)复合材料,研究了其导电性能、摩擦磨损性能及力学性能,并利用扫描电镜观察分析了材料磨损表面形貌,同时将其结果与炭黑(CB)体系进行了比较。结果表明,PA6/GPNs的渗滤阀值为15%(质量分数,下同),远低于PA6/CB的30%;GNPs的加入降低了材料的摩擦系数和磨损率,并在其含量为10%时达到最佳,分别降低30%和50%;提高了材料的拉伸强度、断裂伸长率、硬度,但冲击强度下降。CB的加入提高了材料的耐磨性、硬度,但摩擦性能、拉伸强度、断裂伸长率和冲击强度均下降。
PA6/graphene nanosheets（GNPs） composite was prepared by blending, the conductivity, mechanical property, and friction and wear properties were researched. Scanning electron microscope was employed to study worn surface morphology and the results were compared with the carbon black（CB） system. The results show that the PA6/GPNs nanocomposites exhibited lower percolation threshold（ 15wt % ） than that of PA6/CB（30wt% ）. Moreover, friction and wear performance have some improvement to pure PA6, and achieve the best when the GNPs＇s content was 10wt%, the friction coefficient and wear rate decreased by 30% and 50%. Adding GNPs made the tensile strength and elongation at break, hardness improved modestly, while the impact strength dropped,CB joined matrix improved wear resistance, hardness, but decreased tribological properties, tensile strength,elongation at break and impact strength.
出处
《材料导报》
EI
CAS
CSCD
北大核心
2011年第14期85-88,92,共5页
Materials Reports
基金
福建省自然科学基金重点项目(E0820001)
关键词
石墨烯微片
炭黑
尼龙6
导电性能
摩擦磨损性能
力学性能
graphene nanosheets, carbon black, PA6, conductivity, friction and wear property, mechanical property
