摘要
采用溶液共混法制备聚氨酯/碳纳米管复合材料,探讨碳纳米管含量和超声分散时间对聚氨酯/碳纳米管复合材料摩擦性能的影响。结果表明:随着碳纳米管含量的增加,聚氨酯/碳纳米管复合材料的摩擦因数逐渐降低,随着载荷的增大,摩擦因数有所减小;超声分散时间对聚氨酯/碳纳米管复合材料摩擦性能影响不大;碳纳米管具有较好的润滑性质,可以降低聚氨酯/碳纳米管复合材料的摩擦因数,改善聚氨酯的摩擦性能。
The polyurethane（ PU）/carbon nanotubes （CNTs）composites were produced by solution-blending method. The impacts of the carbon nanotubes content and ultrasonic dispersion time on the tribologieal performances of PU/CNTs composites were studied. The results indicate that the friction coefficient of PU/CNTs composites decreases with the increase of CNTs content, and reduces with the increase of load. There is little effect of the ultrasonic dispersion time on the friction coefficient of PU/CNTs composite materials to improve composites. CNTs has better lubricating properties and can reduce the friction coefficient of the tribological performance of PU.
出处
《润滑与密封》
CAS
CSCD
北大核心
2012年第2期54-57,共4页
Lubrication Engineering
基金
江西省科技厅科技支撑计划项目
关键词
聚氨酯
碳纳米管
超声分散
摩擦性能
polyurethane
carbon nanotubes
ultrasonic dispersion
tribological performances
