• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2017, Vol. 53 ›› Issue (21): 109-117.doi: 10.3901/JME.2017.21.109

• 摩擦学 • 上一篇    下一篇

导电聚苯胺在润滑脂中的导电能力及减摩抗磨性能的研究

胡亦超, 夏延秋   

  1. 华北电力大学能源动力与机械工程学院 北京 102206
  • 收稿日期:2016-10-11 修回日期:2017-05-05 出版日期:2017-11-05 发布日期:2017-11-05
  • 作者简介:胡亦超,男,1985年出生,博士研究生。主要研究方向为电力复合脂的合成与技术表征。E-mail:huyichaosjtu@gmail.com
  • 基金资助:
    固体润滑国家重点实验室开发课题(LSL-1307)和国家自然科学基金(51575181)资助项目。

Conductivity and Tribological Properties of Conductive Polyaniline as Additives in Grease

HU Yichao, XIA Yanqiu   

  1. School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing 102206
  • Received:2016-10-11 Revised:2017-05-05 Online:2017-11-05 Published:2017-11-05
  • Contact: 夏延秋(通信作者),男,博士,教授,博士研究生导师。主要研究方向为合成润滑油及高性能添加剂的合成与制备、润滑油及其添加剂的摩擦化学、机械设备的润滑原理和润滑技术、功能化材料的制备和摩擦润滑研究、设备的润滑与监测。E-mail:xiayq@ncepu.edu.cn

摘要: 采用导电高分子材料—聚苯胺粉末作为润滑脂导电添加剂,合成新型电力复合脂。分别对制备的电力复合脂的体积电阻率以及接触电阻(铜片)进行测试,并采用往复摩擦磨损试验机对其室温下在钢-铜,钢-钢摩擦副的摩擦学性能进行研究。利用扫描电子显微镜(SEM)观察金属表面并利用能谱分析仪(EDS)对表面元素成分进行分析。结果表明,聚苯胺粉末能够将基础脂的体积电阻率降低2个数量级;当添加量为2%时,在钢-铜、钢-钢摩擦副上均可获得最好的减摩效果;当添加量为5%时,也可在多数情况下获得好的抗磨效果。EDS分析结果表明,在润滑脂中添加聚苯胺粉末能在金属表面生成含氮化学反应膜,同时聚苯胺可以抑制摩擦过程中氧与金属的反应。

关键词: 导电高分子, 电力复合脂, 聚苯胺, 摩擦磨损

Abstract: Polyaniline powder is used as conductive additives in grease to synthesize electric force compounded grease. The volume resistance and the contacting resistance of the greases are measured, and the tribological properties are studied with a reciprocating friction/wear testing machine under iron/bronze and iron/iron contacting at room temperature. SEM and EDS are utilized to observe and analyze the friction area after test. The results shows that the polyaniline powder additive can reduce the volume resistance by 2 orders of magnitude; the best friction reduction effects appear at the polyaniline concentration of 2%, while the anti-wear property at 5%. By using EDS, it is known that the polyaniline additive can generate nitrogen containing compounds on top of the substrate metal and meanwhile inhibit the reactions between oxygen and metal.

Key words: conducting polymer, conductive grease, friction and wear, polyaniline

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