聚苯酯改性聚偏氟乙烯基超声电机摩擦材料  

Research on Properties of POB Filled PVDF-Based Friction Materials of Ultrasonic Motor

作　　者：刘传会[1] 丁庆军[1] 胡家玲[1] 田博[1] 

机构地区：[1]南京航空航天大学机械结构力学与控制国家重点实验室,南京210016

出　　处：《振动．测试与诊断》2013年第S2期49-51,217,共4页Journal of Vibration,Measurement & Diagnosis

基　　金：国家自然科学基金资助项目(51175264;51175250)

摘　　要：采用聚苯酯(POB)填充改性聚偏氟乙烯基超声电机摩擦材料,探讨聚苯酯含量对聚偏氟乙烯基摩擦材料力学、摩擦学性能以及超声电机性能的影响。结果表明:聚苯酯能够提高PVDF基复合材料的硬度和弹性模量,而且能降低复合材料的磨损量;材料的磨损方式由以磨粒磨损为主转变为以疲劳磨损为主;聚苯酯含量为5%时电机的机械性能达到最佳状态。Ultrasonic motors(USMs)are driven by friction forces between the stator and rotor.So the output properties and life of USMs are strongly related to the properties of friction materials.In this paper,the effects of the content of POB on the mechanical and tribological properties of PVDF-based friction materials and the mechanical features of the corresponding USMs were studied.The worn surface morphology of the PVDF composites were observed by means of scanning electron microscope(SEM)and the wear mechanisms were also discussed.The experimental results showed that the certain content of POB not only increased the hardness and elastic modulus of the PVDF composites,but also increased the wear resistance of the PVDF composites.On the whole,the PVDF-based friction materials filled with 5% POB were the preferable friction materials for USMs.

关 键 词：聚偏氟乙烯 摩擦材料 聚苯酯 超声电机 

分 类 号：TB39[一般工业技术—材料科学与工程]