摘要
以注塑成型法制备MoS2和碳纤维混杂增强尼龙1010复合材料,采用MM-200型磨损试验机考察复合材料摩擦磨损性能。研究结果表明:在干摩擦条件下,MoS2和碳纤维混杂可显著改善尼龙复合材料摩擦学性能,较小载荷下复合材料磨损以轻微磨粒磨损和疲劳磨损为主,较高载荷下复合材料则以热疲劳断裂剥落磨损为主。摩擦过程中MoS2和对偶铁发生摩擦化学反应,生成和对偶底材具有较强结合能力的硫化亚铁和硫酸铁等,同时部分被氧化生成MoO3。
All specimens of MoS2 and carbon fiber reinforced polyamide 1010(PA1010) composites were prepared by a micro injection machine. The results show that hybrid fillers can considerably improve the tribological properties of PA1010 composites under dry sliding friction conditions. The dominant wear mechanisms of composites were abrasive wear and fatigue wear at a low normal pressure; the fatigue cracking and peeling due to thermal effect resulted in the severe wear of composites with the increase of normal pressure. The tribochemical reactions between MoS2 and counterpart Fe were found to generate FeS2 and FeSO4 which were more effective to promote the adhesive strength to the counterpart, and also MoS2 was partially oxidized into MoO3 during sliding.
出处
《复合材料学报》
EI
CAS
CSCD
北大核心
2003年第2期13-18,共6页
Acta Materiae Compositae Sinica
基金
国家自然科学基金资助项目(50071031)
中科院兰州化学物理研究所固体润滑国家重点实验室开放基金资助项目(9910)
