期刊论文

Mechanical and Tribological Properties of Polyamide 6 Modified by Glass Bead And Solid Lubricants

中文

工程塑料应用

1001-3539

2018

46

5

113-116

10.3969/j.issn.1001-3539.2018.05.024

149929:中南大学博士后启动经费项目 14A025:湖南省教育厅科学研究重点项目 2017JJ2018:湖南省自然科学基金

本校为其他机构

采用玻璃微珠(GB)增强聚酰胺6 (PA6),固体润滑剂聚四氟乙烯(PTFE)、石墨(Gr)降低PA6的摩擦系数。重点研究GB含量、PTFE、Gr含量及配比对PA6复合材料的拉伸强度、冲击强度和摩擦系数的影响。结果表明,GB可提高PA6的力学性能,随着GB含量增大,PA6复合材料的拉伸强度和冲击强度先增大后减小,GB含量为15%时,其综合力学性能较好,但GB不能降低PA6的摩擦系数。固体润滑剂不能进一步提高PA6/GB (85/ 15,质量比)的力学性能,但是能大大降低其摩擦系数,且PTFE和Gr对降低摩擦系数有协同效应,PTFE/Gr为10/5时,PA6复合材料的摩擦系数仅为0.1319。

Glass bead (GB) was used to reinforce polyamide6 (PA6),polytetrafluoroethylene (PTFE) and graphite (Gr) were used as solid lubricants to reduce friction coefficient of PA6. Effects of the content of GB, PTFE and Gr as well as the proportion of PTFE / Gr on the mechanical properties and friction coefficient of PA6 composites were studied. The results reveal that the mechanical properties of PA6 are enhanced by GB, with the increase of GB content,the tensile strength and impact strength of PA6 composite increase first and then decrease. When the content of GB is 15%, the mechanical performances ...