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首页> 外文期刊>Applied Surface Science >Preparation of surface-modified lanthanum fluoride-graphene oxide nanohybrids and evaluation of their tribological properties as lubricant additive in liquid paraffin
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Preparation of surface-modified lanthanum fluoride-graphene oxide nanohybrids and evaluation of their tribological properties as lubricant additive in liquid paraffin

机译：表面改性的氟化镧-氧化石墨烯纳米杂化物的制备及其在液体石蜡中作为润滑剂添加剂的摩擦学性能评估

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摘要

Oleic acid surface-modified Lanthanum trifluoride-graphene oxide (OA-LaF3-GO) nanohybrids were successfully prepared by surface modification technology. The morphology and phase structure of as-prepared samples were analyzed by means of X-ray diffraction and transmission electron microscopy, Fourier transform infrared spectrometry, Raman spectrometry and thermogravimetry. The results revealed that OA were bonded onto the surface of LaF3-GO nanohybrids. Subsequently, the tribological properties of OA-LaF3-GO nanohybrids as lubricant additive in liquid paraffin were evaluated with a four-ball machine, and the morphology and elemental composition of worn steel surfaces were examined on a scanning electron microscope with an energy dispersive spectrometer. Tribological results showed that OA-LaF3-GO nanohybrids had excellent friction reduction and antiwear ability at the loading of 0.5 wt.% OA-LaF3-GO nanohybrids, compared to liquid paraffin alone. The results of energy dispersive spectrometer revealed that improved tribological properties resulted from OA-LaF3-GO could transfer to the rubbed steel surface and decompose to form protective layers, which help to improve tribological properties. (C) 2015 Elsevier B.V. All rights reserved.
机译：通过表面改性技术成功制备了油酸表面改性的三氟化镧-氧化石墨烯（OA-LaF3-GO）纳米杂化物。通过X射线衍射和透射电子显微镜，傅立叶变换红外光谱，拉曼光谱和热重分析，分析了所制备样品的形态和相结构。结果表明，OA键合到LaF3-GO纳米杂化物的表面。随后，使用四球机评估了OA-LaF3-GO纳米杂化物在液体石蜡中作为润滑剂添加剂的摩擦学性能，并在带能谱仪的扫描电子显微镜下检查了磨损钢表面的形貌和元素组成。摩擦学结果表明，与单独使用液体石蜡相比，OA-LaF3-GO纳米杂化物在负载0.5 wt。％OA-LaF3-GO纳米杂化物时具有出色的减摩性和抗磨能力。能量色散光谱仪的结果表明，OA-LaF3-GO改善了摩擦学性能，可以转移到摩擦的钢表面并分解形成保护层，从而有助于改善摩擦学性能。 （C）2015 Elsevier B.V.保留所有权利。

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  • 来源
    《Applied Surface Science》 |2016年第ptaa期|497-502|共6页
  • 作者

    Yang Cuizhen; Hou Xiao; Li Zhiwei; Li Xiaohong; Yu Laigui; Zhang Zhijun;

  • 作者单位

    Henan Univ, Engn Res Ctr Nanomat, Jinming Ave, Kaifeng 475004, Henan, Peoples R China;

    Henan Univ, Engn Res Ctr Nanomat, Jinming Ave, Kaifeng 475004, Henan, Peoples R China;

    Henan Univ, Engn Res Ctr Nanomat, Jinming Ave, Kaifeng 475004, Henan, Peoples R China;

    Henan Univ, Engn Res Ctr Nanomat, Jinming Ave, Kaifeng 475004, Henan, Peoples R China;

    Henan Univ, Engn Res Ctr Nanomat, Jinming Ave, Kaifeng 475004, Henan, Peoples R China;

    Henan Univ, Engn Res Ctr Nanomat, Jinming Ave, Kaifeng 475004, Henan, Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Surface modification; Lanthanum trifluoride; Graphene oxide; Nanohybrids; Tribological properties;

    机译：表面改性三氟化镧氧化石墨烯纳米杂化物摩擦学性能;

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