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首页> 外文期刊>Journal of Applied Polymer Science >Friction and wear properties of graphene oxide/ultrahigh-molecular-weight polyethylene composites under the lubrication of deionized water and normal saline solution
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Friction and wear properties of graphene oxide/ultrahigh-molecular-weight polyethylene composites under the lubrication of deionized water and normal saline solution

机译：去离子水和生理盐水润滑下氧化石墨烯/超高分子量聚乙烯复合材料的摩擦磨损性能

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摘要

Ultrahigh-molecular-weight polyethylene (UHMWPE) and UHMWPE composites reinforced with graphene oxide (GO) were successfully fabricated through a new step of liquid-phase ultrasonic dispersion, high-speed ball-mill mixing, and hot-pressing molding technology. When the GO/UHMWPE composites were lubricated with deionized water (DW) and normal saline (NS) solution, their friction and wear properties were investigated through sliding against ZrO_2. The worn surface and wear volume losses of these composites were studied with scanning electron microscopy, X-ray photoelectron spectroscopy, and a Micro-XAM 3D non-contact surface profiler. The results show that the microhardness of the GO/UHMWPE composites was improved by 13.80% and the wear rates were decreased by 19.86 and 21.13%, whereas the depths of the scratches were decreased by 22.93 and 23.77% in DW and NS lubricating conditions, respectively.
机译：通过液相超声分散，高速球磨混合和热压成型技术的新步骤，成功地制造了超高分子量聚乙烯（UHMWPE）和用氧化石墨烯（GO）增强的UHMWPE复合材料。当用去离子水（DW）和生理盐水（NS）润滑GO / UHMWPE复合材料时，通过与ZrO_2滑动来研究其摩擦和磨损性能。通过扫描电子显微镜，X射线光电子能谱和Micro-XAM 3D非接触式表面轮廓仪研究了这些复合材料的磨损表面和磨损体积损失。结果表明，在DW和NS润滑条件下，GO / UHMWPE复合材料的显微硬度提高了13.80％，磨损率降低了19.86和21.13％，划痕深度分别降低了22.93和23.77％。 。

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