摘要
将2%的碳纳米管(CNTs)掺杂到玻璃纤维(GF)增强环氧树脂(EP)复合材料中,研究了CNTs对GF/EP复合材料的摩擦磨损性能的影响。将一部分CNTs进行表面酸化处理(采用HNO_3和H_2SO_4的混酸),酸化后的CNTs采用红外光谱仪(FTIR)分析。对比研究了酸化前后的CNTs对复合材料摩擦磨损性能的影响。实验结果表明:CNTs能够有效地降低复合材料的摩擦系数并提高复合材料的磨损率,酸化后的CNTs的性能更佳。复合材料的磨损表面采用扫描电镜(SEM)观察。
Carbon nanotube （CNTs） were doped in glass fiber （GF）/epoxy （EP） composites to investigate the effects of CNTs on the friction and wear properties of GF/ EP composites. Some CNTs was treated with acid mixtures （HNO3 ：H2SO4）and the changes of＂ surface properties of CNTs were investigated using fourier transform infrared spectroscopy （FTIR）. Ring-on-block type wear tests were performed to evaluate the frictional properties of CNT-doped GF/EP composites. Results show that CNTs can improve the wear resistance and reduce the friction coefficient of GF/EP composites. The surface fracture of the composite and the changes of surface functional groups of CNTs are observed by scanning electron microscope （SEM）.
出处
《科学技术与工程》
北大核心
2013年第5期1397-1400,共4页
Science Technology and Engineering
基金
陕西省自然科学基础研究计划项目(SJ08A26)
中小企业技术创新基金(08C26226102372)资助
