The effects of polydopamine coated Cu nanoparticles on the tribological properties of polydopamine/PTFE coatings

被引：57

作者：

Beckford, Samuel ^{[1
,2
]}

Mathurin, Leanne ^{[2
,3
]}

Chen, Jingyi ^{[2
,3
]}

Fleming, Robert A. ^{[1
,2
]}

Zou, Min ^{[1
,2
]}

机构：

[1] Univ Arkansas, Dept Mech Engn, Fayetteville, AR 72701 USA

[2] Univ Arkansas, Ctr Adv Surface Engn, Fayetteville, AR 72701 USA

[3] Univ Arkansas, Dept Chem & Biochem, Fayetteville, AR 72701 USA

来源：

TRIBOLOGY INTERNATIONAL | 2016年 / 103卷

基金：

美国国家科学基金会;

关键词：

PTFE; Polydopamine; Polydopamine coated Cu nanoparticles; Wear; WEAR-RESISTANT PTFE; LOW-FRICTION; BEHAVIOR; FILMS;

D O I：

10.1016/j.triboint.2016.06.031

中图分类号：

TH [机械、仪表工业];

学科分类号：

120111 [工业工程];

摘要：

The effects of using polydopamine (PDA) coated Cu nanoparticles (PDA-Cu) as a filler in the polytetrafluoroethylene (PTFE) topcoat of a PDA/PTFE dual-layer coating are investigated, where the PDA is used as an adhesive basecoat. Tribological tests show that the addition of PDA-Cu in PTFE increases the wear life of PDA/PTFE by a factor of two, approximately three orders of magnitude greater than that of pure PTFE without a PDA basecoat. This increase in wear life is achieved without compromising the low coefficient of friction characteristic of pure PIPE. Scratch tests show that the PDA-Cu filler improves adhesion between the PTFE and the PDA, preventing large scale delamination and also increases the toughness of the coating, preventing ruptures at lower loads. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：87 / 94

页数：8

共 24 条

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[2]

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