吉林大学学报(工学版) ›› 2021, Vol. 51 ›› Issue (2): 493-500.doi: 10.13229/j.cnki.jdxbgxb20200934

• 材料科学与工程 • 上一篇    

低温下铜纳米颗粒对UHMWPE复合材料摩擦磨损性能影响

佟金1,2(),高子博1,2,霍超1,2,王子阳1,2,马云海1,2,常志勇1,2()   

  1. 1.吉林大学 生物与农业工程学院，长春 130022
    2.吉林大学 工程仿生教育部重点实验室，长春 130022
  • 收稿日期:2020-12-07 出版日期:2021-03-01 发布日期:2021-02-09
  • 通讯作者: 常志勇 E-mail:jtong@jlu.edu.cn;zychang@jlu.edu.cn
  • 作者简介:佟金（1957-），男，教授，博士生导师.研究方向：农业工程仿生理论与技术，仿生摩擦.E-mail:jtong@jlu.edu.cn
  • 基金资助:
    国家重点研发计划项目(2017YFD0701103)

Effect of Cu nanoparticles on friction and wear of ultra⁃high molecular weight polyethylene with composites at low temperature

Jin TONG1,2(),Zi-bo GAO1,2,Chao HUO1,2,Zi-yang WANG1,2,Yun-hai MA1,2,Zhi-yong CHANG1,2()   

  1. 1.College of Biological and Agricultural Engineering，Jilin University，Changchun 130022，China
    2.Key Laboratory of Bionic Engineering，Ministry of Education，Jilin University，Changchun 130022，China
  • Received:2020-12-07 Online:2021-03-01 Published:2021-02-09
  • Contact: Zhi-yong CHANG E-mail:jtong@jlu.edu.cn;zychang@jlu.edu.cn

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摘要：

向碳纤维（CF）与聚苯酯（POB）增强超高分子量聚乙烯（UHMWPE）复合材料加入不同质量分数铜纳米颗粒，探究了加入铜纳米颗粒对复合材料的力学性能与导热性能的影响。使用扫描电子显微镜（SEM）对铜纳米颗粒改性复合材料在低温环境下时磨损微观表面进行观察。使用原子力显微镜（AFM）研究了低温环境下改性复合材料转移膜的形貌。研究表明：低温环境下该改性复合材料摩擦因数和磨损率低于室温环境下的摩擦因数和磨损率。低温环境下改性复合材料磨损机理以疲劳磨损和磨料磨损为主，加入铜纳米颗粒后形成致密且连贯的转移膜，显著降低了改性复合材料的磨损率。

关键词: 复合材料, 铜纳米颗粒, 超高分子量聚乙烯, 低温, 摩擦磨损

Abstract:

Cu nanoparticles with different contents were added into Ultra-high-molecular-weight polyethylene （UHMWPE） and polyphenyl ester （POB）reinforced with carbon fibre（CF）.The effect of Cu nanoparticles content on the mechanical properties and heat conduction performance of the composites was studied. The wear surface of Cu nanoparticles modified composite material at temperature were examined by scanning electron microscope （SEM）. The transfer films topographical were studied by atomic force microscopy（AFM）. The research shows： The coefficient of friction and wear rate of composites at low temperature was lower than the coefficient of friction and wear rate of composites at room temperature. The wear mechanism of Chafing fatigue and abrasive wear is mainly for composite materials in low temperature environment. A compact and coherent transfer film is formed after adding copper nanoparticles to significantly reduce the wear rate of the modified composite material.

Key words: composite material, copper nanoparticles, ultra-high molecular weight polyethylene, low temperature, friction and wear

中图分类号: 

  • TQ314.24

图1

复合材料成型工艺图"

图2

不同铜纳米颗粒含量复合材料的硬度"

图3

不同铜纳米颗粒含量复合材料的导热性能"

图4

低温下不同铜纳米颗粒质量分数复合材料瞬时摩擦因数"

图5

低温与室温下不同铜纳米颗粒含量复合材料摩擦因数"

表1

复合材料在低温下的磨损损失与磨损率"

铜纳米颗粒质量分数/%磨损损失/10-3g磨损率/[10-5mm3·(N·m)-1]
415.45.568
64.31.499
81.90.658
101.40.471
121.00.330

图6

低温与室温下不同铜纳米颗粒质量分数复合材料磨损率"

图7

低温下不同铜纳米颗粒质量分数复合材料磨损微观表面的SEM观察"

图8

低温下不同铜纳米颗粒含量复合材料转移膜表面形貌"

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