摘要
用玄武三号栓-盘式摩擦磨损试验机研究了纯玻璃纤维织物以及辐照聚四氟乙烯(PTFE)粉末、MoS2粉末、纳米TiO2和纳米CaCO3填充改性玻璃纤维织物复合材料的摩擦磨损性能;采用扫描电子显微镜观察分析了其磨损表面形貌.结果表明,辐照PTFE粉末和纳米TiO2可以明显提高玻璃纤维织物复合材料的减摩抗磨性能,且辐照PTFE粉末的减摩抗磨效果明显优于纳米TiO2;当PTFE的质量分数为10%时,PTFE改性玻璃纤维织物复合材料的综合摩擦磨损性能最好.MoS2和纳米CaCO3则使得玻璃纤维织物复合材料的摩擦系数和磨损率明显增大,其中纳米Ca-CO3填充玻璃纤维织物的摩擦磨损性能最差.
The glass cloth composites filled with irradiated polytetrafluoroethylene (PTFE), MoS2, nano-TiO2, and nano-CaCO3 were prepared by immersing of the glass cloth in an adhesive doped with various micro- and nano-fillers, plastering of the immersed glass cloth onto the steel substrate, and curing of the plastered glass cloth at proper temperature. The friction and wear properties of the resulting glass cloth composites sliding against AISI-1045 steel in a pin-on-disc configuration and under unlubricated condition were investigated. The worn surface morphologies of the glass cloth composites and the counterpart steel were observed on a scanning electron microscope. It was found that the friction-reducing and anti-wear properties of the glass cloth composites were greatly improved by filling with irradiated PTFE and nano-TiO2, and the irradiated PTFE was superior to nano-TiO2 in terms of the ability to improve the friction-reducing and anti-wear properties of the glass cloth. The glass cloth composite filled with 10% PTFE showed the best friction-reducing and anti-wear properties. However, MoS2, and nano-CaCO3 as the fillers were harmful to the friction and wear properties of the glass cloth composites. This was related to the different compatibility and interfacial bonding among different fillers and the adhesive and glass cloth matrix, and to the different natures of the transfer films of the glass cloth composites filled with various fillers on the counterpart steel surface as well.
出处
《摩擦学学报》
EI
CAS
CSCD
北大核心
2004年第5期406-410,共5页
Tribology
关键词
玻璃纤维织物
纳米颗粒
微米颗粒
填充复合材料
摩擦磨损性能
Fillers
Friction
Morphology
Polytetrafluoroethylenes
Scanning electron microscopy
Wear resistance
