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碳纤维增强受电弓滑板的性能表征

Properties characterization of carbon fibre reinforced pantograph sliding plate

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【作者】 袁华王成国卢文博于美杰陈旸乔琨

【Author】 YUAN Hua1,2,WANG Cheng-guo2,LU Wen-bo2,YU Mei-jie2,CHEN Yang2,QIAO Kun2(1.Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education),Shandong University,Ji’nan 250061,China; 2.Carbon Fibre Engineering Research Center,Faculty of Materials Science,Shandong University,Ji’nan 250061,China)

【机构】 山东大学材料科学与工程学院材料液固结构演变与加工教育部重点实验室山东大学材料科学与工程学院碳纤维工程技术研究中心

【摘要】 采用改性酚醛树脂为粘结剂,连续碳纤维和短切纤维为增强相,铜为导电相,石墨为润滑相,利用热压技术制备碳纤维增强受电弓滑板。对试样进行电阻测试、冲击试验以及磨损试验,利用SEM对冲击断面和磨损形貌进行观察。结果表明,连续碳纤维增强滑板的冲击性能和耐磨性明显优于短切纤维增强滑板;碳纤维含量对滑板的机械性能影响较大;纤维与树脂界面结合良好;受电弓滑板在摩擦过程中最主要的机械磨损形式是磨粒磨损、粘着磨损和氧化磨损。

【Abstract】 The carbon fibre reinforced pantograph sliding plates were fabricated by heated pressing,with modified phenolic resin as bonder,the continuous carbon fibre/short fibre is a reinforcing phase,the copper is electric conductive phase and graphite is lubricating phase.The impact toughness,electric resistance and wear resistance of the slide plate were tested.Wear surface and impact fracture were examined by scanning electron microscope(SEM).The results show that the continuous carbon fibre reinforced pantograph sliding plate has superior impact toughness and wear resistance than that of short carbon fibre reinforced one.Mechanical properties are largely affected by carbon fibre fraction.The interface bond between fibre and resin is good.In addition,adhesion wear,abrasive wear and oxidation wear are the main wear form of pantograph slide plates.

【基金】 国家重点基础研究发展计划(973计划)资助项目(2011CB605601);国家自然科学基金资助项目(50902088);山东省自然科学基金资助项目(2009ZRB019C8)
  • 【文献出处】 功能材料 ,Journal of Functional Materials , 编辑部邮箱 ,2011年06期
  • 【分类号】TB332
  • 【被引频次】6
  • 【下载频次】298
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