碳纳米管丁腈橡胶耐磨复合材料的摩擦与力学性能模拟  

Simulation of frictional and mechanical properties of CNTs/nitrile-butadiene rubber wear-resistant composites

作　　者：唐黎明[1] 王新楠 纪平 何恩球[2] TANG Liming;WANG Xinnan;JI Ping;HE Enqiu(School of Mechanical and Power Engineering,Shenyang University of Chemical Technology,Shenyang 110142,China;School of Mechanical Engineering,Shenyang University of Technology,Shenyang 110870,China)

机构地区：[1]沈阳化工大学机械与动力工程学院,辽宁沈阳110142 [2]沈阳工业大学机械工程学院,辽宁沈阳110870

出　　处：《安徽大学学报（自然科学版）》2022年第5期83-88,共6页Journal of Anhui University(Natural Science Edition)

基　　金：辽宁省自然科学基金指导计划项目(20180550640);辽宁省教育厅高等学校科学研究经费基础研究项目(LJ2020018)。

摘　　要：运用分子动力学模拟的方法研究碳纳米管丁腈橡胶复合材料的力学与摩擦学性能,考察材料应力与应变的关系、径向分布函数(RDF)的分布与摩擦行为.结果表明:碳纳米管复合材料的力学性能显著提升,摩擦后复合材料RDF平均值与纯胶材料相比下降了44%.碳纳米管与聚合物分子链之间存在较强的相互作用,约束了聚合物分子链的热力学运动,这是复合材料力学与摩擦学性能得到提高的根本原因.The frictional and mechanical properties on the CNTs/nitrile-butadiene rubber(NBR)composites were studied using molecular dynamics simulation(MDS)in this article.The relationship of stress and strain,distribution of radial distribution function(RDF)and friction behavior about the material were examined.The results showed that the mechanical properties of the CNTs/NBR composites increased significantly.Compared with the pure NBR,the mean value of RDF of the CNTs/NBR composites decreased at 44%.The interaction was stronger between CNTs and NBR molecular chains and the thermal motion of the molecular chains was restricted due to the interaction.It was the reason why the frictional and mechanical properties were improved.

关 键 词：碳纳米管 丁腈橡胶 摩擦性能 力学性能 

分 类 号：TQ333.7[化学工程—橡胶工业]