碳纤维和二硫化钼混杂增强尼龙复合材料的摩擦学性能研究

王军祥; 顾明元; 朱真才; 葛世荣; 刘维民

碳纤维和二硫化钼混杂增强尼龙复合材料的摩擦学性能研究

1.
上海交通大学金属基复合材料国家重点实验室, 上海 200030;
2.
中国矿业大学机电与材料工程学院, 江苏徐州 221008;
3.
中国科学院兰州化学物理研究所固体润滑国家重点实验室, 甘肃兰州 730000

基金项目: 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)

详细信息

作者简介:
王军祥(1971-),男,博士,讲师,目前主要从事聚合物基复合材料及其摩擦学研究。

通讯作者:
王军祥, E-mail: Jxwtr@163.com

中图分类号: TH117.2
计量
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出版历程
- 收稿日期: 2001-09-18
- 修回日期: 2001-12-02
- 刊出日期: 2003-04-14

TRIBOLOGICAL PROPERTIES OF HYBRID CARBON FIBER AND MoS₂ REINFORCED POLYAMIDE 1010 COMPOSITES

1.
State Key Laboratory of MMCs,Shanghai Jiaotong University, Shanghai 200030,China;
2.
School of Mechatronic and Materials Engineering, China University of Mining and Technology, Xuzhou 221008, China;
3.
State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China

摘要

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。
- 尼龙1010复合材料 /
- 碳纤维 /
- 二硫化钼 /
- 摩擦学性能
Abstract: All specimens of MoS₂ and carbon fiber reinforced polyamide 1010(PA1010) composites were prepared by a micro injection machine. The friction coefficient and wear rate of composites were investigated with the ring-block test rig. 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 counterface 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 to MoO₃ during sliding.
- polyamide 1010 composite /
- carbon fiber /
- MoS₂ /
- tribological properties