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    朱磊宁, 谢苏江, 安琦. 碳纳米管改性聚四氟乙烯材料的滚动磨损性能[J]. 华东理工大学学报(自然科学版), 2015, (3): 403-411.
    引用本文: 朱磊宁, 谢苏江, 安琦. 碳纳米管改性聚四氟乙烯材料的滚动磨损性能[J]. 华东理工大学学报(自然科学版), 2015, (3): 403-411.
    ZHU Lei-ning, XIE Su-jiang, AN Qi. Rolling Wear Properties for PTFE Filled with MWCNTS[J]. Journal of East China University of Science and Technology, 2015, (3): 403-411.
    Citation: ZHU Lei-ning, XIE Su-jiang, AN Qi. Rolling Wear Properties for PTFE Filled with MWCNTS[J]. Journal of East China University of Science and Technology, 2015, (3): 403-411.

    碳纳米管改性聚四氟乙烯材料的滚动磨损性能

    Rolling Wear Properties for PTFE Filled with MWCNTS

    • 摘要: 在16 ℃和32 ℃下,采用不同表面处理、不同质量分数的多壁碳纳米管(MWCNTs)填充聚四氟乙烯(PTFE)复合材料,在ISO 9352标准滚动磨损试验机上测定其钢轮滚动磨损率、连续滚动磨损钢轮表面温升变化和模拟磨粒磨损值。结果发现,在相同负载下,不同表面处理MWCNTs/PTFE复合材料的钢轮滚动磨损率比纯PTFE下明显减小,且MWCNTs/PTFE转移膜呈小面积点状形状,磨屑形态也有不同形态。通过观察磨屑照片、体视显微镜和扫描电镜(SEM)对MWCNTs/PTFE材料的钢轮滚动摩擦磨损和模拟磨粒磨损机理分析,推测MWCNTs填充后改变了材料的微观结构,从而导致了不同表面处理的MWCNTs/PTFE材料之间性能的差异。

       

      Abstract: Abstract: By using rolling wear measuring apparatus, complied with ISO 9352, the rolling wear rates were measured with the surface temperature changing at the continuous rolling condition and the simulated abrasive wear rate of PTFE(Polytetrafluoroethylene) filled with different surfaces treated and different contents of MWCNTs at temperature of 16 ℃ and 32 ℃. Different surface treated MWCNTs/PTFE composite wear rate is smaller than that of neat PTFE, and MWCNTs / PTFE composite transfer film changed to a small area of dotted pattern and wear debris pattern also changed. By observing the wear debris, stereomicroscope and scanning electron microscopy (SEM), the mechanism analysis of the rolling wear and simulated abrasive wear are carried out, and proposed that the microstructure is changed when PTFE filled with MWCNTs, which result in the wear property change.

       

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