材料科学
高密度聚乙烯
聚丙烯
聚对苯二甲酸乙二醇酯
聚乙烯
复合材料
表面粗糙度
停留时间
蠕动
表面光洁度
动能
量子力学
临床心理学
医学
物理
作者
Dae‐Hyun Cho,Bharat Bhushan,James Dyess
标识
DOI:10.1016/j.triboint.2015.08.027
摘要
Polymeric materials are widely used in household applications. During use, sliding surfaces are worn out and the interfacial properties change affecting friction. Consequently, understanding of friction mechanisms of polymeric materials with changing interfacial properties is important. In this study, the effect of various speed, load, and dwell time conditions on friction of polypropylene (PP), polyethylene terephthalate (PET), and high-density polyethylene (HDPE) pairs is studied. Roughness, debris formation, and mechanical properties are measured to understand friction behavior. Static and kinetic friction exhibits dependence on surface roughness which affects mechanical interaction of asperities and real contact area. Static friction increases with dwell time due to creep.
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