Effects of dimensions and size of carbon nano-additives in water-based lubricants on the tribological behavior for polytetrafluoroethylene (PTFE) friction pair

被引：0

作者：

Tang J. ^{[1
]}

Chen S. ^{[1
]}

Liu Y. ^{[1
]}

Li H. ^{[1
]}

Zhao A. ^{[1
]}

Quan X. ^{[1
]}

Ding Q. ^{[2
]}

机构：

[1] College of Materials Science and Engineering, Yangtze Normal University, Chongqing

[2] State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou

来源：

Zhongguo Kexue Jishu Kexue/Scientia Sinica Technologica | 2020年 / 50卷 / 08期

关键词：

Carbon nano-additives; Friction; PTFE; Water-based lubrication; Wear;

D O I：

10.1360/SST-2019-0440

中图分类号：

学科分类号：

摘要：

The tribological performances of two-dimensional graphene oxide (GO), one-dimensional carbon nanotubes (CNTs), zero-dimensional carbon nanoparticles (CNPs) and zero-dimensional carbon dots (CDs) as additives for water-lubricated PTFE/PTFE contacts are investigated, and the effects of dimensions and size on the tribological behavior carbon nano-additives are investigated systematically. The results show that the introduction of carbon nano-additives into water could inhibit slippage and stress crack of PTFE by form of the adhesive layer, but have different influence degree to the tribological actions due to the difference in properties and dimensions. Among all of carbon nano-additive, multilayer GO can be adsorbed and form a compact protective film on the surface of PTFE showing the most excellent tribological performance. CNTs, CNPs and CDs which usually show effect in friction-reducing based on nano-bearing effects, however, an adhesive layer which no slip and shear is observed form when friction occurs and cause undesirable abrasive wear. © 2020, Science Press. All right reserved.

引用

页码：1115 / 1122

页数：7

共 18 条

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