中国塑料2018，Vol.32Issue(4)：45-50,6.DOI:10.19491/j.issn.1001-9278.2018.04.008
石墨粒径对聚酰亚胺摩擦性能的影响
Effect of Particle Size of Graphite on Tribological Performance of Polyimide
杨睿 1苏正涛1
作者信息
- 1. 中国航发北京航空材料研究院,减振降噪材料及应用技术航空科技重点实验室,北京100095
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摘要
Abstract
Five types of natural flake graphite (NG) with particle sizes of 10,20,30,40 and 50μm were used to prepare polyimide (PI)/NG composites via a hot-pressing technology,and the dynamic thermo-mechanical properties,tribological performance and morphologies of fracture and worn surfaces were investigated.The results indicated that the storage modulus and loss modulus of PI were enhanced with the addition of NG,and however,they were seldom affected by the particle size of NG.Moreover,the coefficient of friction and wear rate of PI/NG composites continuously decreased with a decrease in particle size.The PI/NG composites achieved a coefficient of friction of 0.0882 and a wear rate of 6.19× 10-7mm3/N · m when NG with a particle size of 10 μm was added.In addition,the PI/NG composites exhibited a smoother worn surface than pure PI,in which a more continuous and compact transfer film was obtained.关键词
石墨/粒径/聚酰亚胺/摩擦性能Key words
natural flake graphite/particle size/polyimide/tribological performance分类
化学化工引用本文复制引用
杨睿,苏正涛..石墨粒径对聚酰亚胺摩擦性能的影响[J].中国塑料,2018,32(4):45-50,6.
