林有希,高诚辉,李志方

• 1:福州大学机械工程及自动化学院
• 2:福州大学机械工程及自动化学院
• 3:福州大学机械工程及自动化学院 福建福州350002
• 4:福建福州350002

摘要(Abstract)：

用MM200磨损试验机和45钢环配副,研究不同含量碳酸钙(CaCO3)晶须和10%的聚四氟乙烯(PTFE)共同填充聚醚醚酮(PEEK)复合材料的摩擦磨损性能,用扫描电镜观察磨损表面形貌并分析磨损机理。结果表明,随着复合材料中晶须含量增加,摩擦系数持续降低,最低可降到纯PEEK的1/2;复合材料的磨损率随晶须含量的增加先大幅度减小后又缓慢回升,当晶须含量为15%-20%时,磨损率降至3.3×10-7mm3/Nm,仅为纯PEEK的3.6%,20%CaCO3/10%PTFE/PEEK综合摩擦学性价比较好。CaCO3晶须增强PEEK减少了复合材料在摩擦过程中摩擦副表面粘着和剥层,阻止基体树脂的热塑性变形,同时PTFE的优先粘着转移使得复合材料在对偶件表面形成连续、均匀的转移膜,两者协同有效降低摩擦系数和磨损率,提高材料的摩擦学性能。

关键词(KeyWords)： 复合材料;摩擦学;聚醚醚酮(PEEK);晶须;碳酸钙;聚四氟乙烯(PTFE)

Abstract:

Keywords:

基金项目(Foundation): 福建省自然科学基金(E0410014)

作者(Author): 林有希,高诚辉,李志方

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