Enhanced mechanical and tribological properties in polyphenylene sulfide/polytetrafluoroethylene composites reinforced by short carbon fiber

被引：115

作者：

Luo, Wei ^{[1
]}

Liu, Qi ^{[1
]}

Li, Yi ^{[2
]}

Zhou, Shengtai ^{[3
]}

Zou, Huawei ^{[1
]}

Liang, Mei ^{[1
]}

机构：

[1] Sichuan Univ, Polymer Res Inst, State Key Lab Polymer Mat Engn, Chengdu 610065, Peoples R China

[2] Syst Engn Inst Sichuan Aerosp, Chengdu 610100, Peoples R China

[3] Univ Western Ontario, Fac Engn, Dept Chem & Biochem Engn, London, ON N6A 5B9, Canada

来源：

COMPOSITES PART B-ENGINEERING | 2016年 / 91卷

基金：

中国国家自然科学基金;

关键词：

Carbon fiber (CF); Mechanical properties; Tribological properties; SULFIDE COMPOSITES; WEAR BEHAVIOR; GLASS-FIBER; POLYPROPYLENE COMPOSITES; MORPHOLOGICAL PROPERTIES; INTERFACIAL ADHESION; WATER LUBRICATION; FRICTION; PERFORMANCE; PPS;

D O I：

10.1016/j.compositesb.2016.01.036

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Self-lubricating composites based on Polyphenylene sulfide/Polytetrafluoroethylene (PPS/PTFE) reinforced with short carbon fibers (CF) were prepared by melt-blending. The effect of CF loadings on morphology, mechanical and dry-sliding behavior of the composite were carefully investigated in expectation of providing valuable information for the application of polymer-based composites. Results indicated that the incorporation of CF apparently improved the tensile strength, flexural modulus and hardness of PPS/PTFE blends. Meanwhile, the specific wear rate and average friction coefficient of PPS/PTFE reinforced by 15 vol% CF reached to 5.2 x 10(-6) mm(3)/Nm and 0.085, which are 88% and 47% lower than that of mono-PPS/PTFE blend at the same sliding condition. Scanning electron microscopy (SEM) observations of the worn surfaces revealed that the main wear mechanism of the PPS/PTFE composites transformed from adhesive wear to abrasive wear by the introduction of CR X-ray photoelectron spectroscopy (XPS) analysis of worn surface and the macroscopic observations of steel ring counterpart indicated the existence of uniform, smooth and PTFE-rich transfer film for PPS/PTFE/CF trinary blends, which is responsible for the enhanced tribological properties. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：579 / 588

页数：10

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