摘要
分别用前驱体分解法与剥层重堆法制备出二硫化钼纳米球(nano-MoS2)与聚甲醛/二硫化钼夹层化合物(MoS2-IC),再利用制备的nano-MoS2、MoS2-IC与微米二硫化钼(micro-MoS2)作为原料制备出POM/MoS2复合材料。在真空摩擦磨损试验机上考察了复合材料的摩擦学性能,结果表明,POM/nano-MoS2复合材料具有最好的摩擦学性能,POM/MoS2-IC复合材料次之,而POM/micro-MoS2复合材料性能与POM比没有改善;SEM分析显示,POM及其复合材料主要发生的是疲劳磨损,POM/nano-MoS2的疲劳磨损最轻,POM/MoS2-IC疲劳磨损最严重,POM与POM/micro-MoS2除了疲劳磨损外,还存在明显的粘着磨损。
Molybdenum disulfide nano-balls （nano-MoS2） and POM/MoS2 intercalation compound （MoS2-IC） were prepared respectively by the precursor method and the exfoliating-restacking method.The two obtained MoS2 powders and commercial bulk MoS2 （micro-MoS2） were respectively added into POM so as to get POM/MoS2 composites. Tribological properties of the obtained composites were investigated on a vacuum tribometer. Results show that the POM/nano-MoS2 composite haft me oest tribological properties. POM/MoS2-IC also presented better antifriction than pure POM. However, adding miero-MoS2 into POM did not enhance the tribological properties of POM. SEM results confirmed that the fatigue wear was the main wear mode of POM/MoS2 composites. Moreover, POM and POM/micro-MoS2 also presented obvious adhesive wear.
出处
《合肥工业大学学报（自然科学版）》
CAS
CSCD
北大核心
2009年第5期615-619,共5页
Journal of Hefei University of Technology：Natural Science
基金
国家自然科学基金资助项目(50475071)
安徽省自然科学基金资助项目(070414152)
关键词
二硫化钼
聚甲醛
复合材料
真空摩擦学
molybdenum disulfide
polyacetal
composite
vacuum tribology
