Friction and wear behavior of PTFE coatings modified with poly (methyl methacrylate)

被引：66

作者：

Peng, Shiguang ^{[1
]}

Zhang, Lin ^{[1
]}

Xie, Guoxin ^{[1
]}

Guo, Yue ^{[2
]}

Si, Lina ^{[3
]}

Luo, Jianbin ^{[1
]}

机构：

[1] Tsinghua Univ, Dept Mech Engn, State Key Lab Tribol, Beijing 100084, Peoples R China

[2] China Acad Launch Vehicle Technol, Beijing Inst Astronaut Syst Engn, Beijing 100076, Peoples R China

[3] North China Univ Technol, Sch Mech & Mat Engn, Beijing 100144, Peoples R China

来源：

COMPOSITES PART B-ENGINEERING | 2019年 / 172卷

基金：

中国国家自然科学基金;

关键词：

Friction and wear properties; Coating; Polytetrafluoroethylene; PTFE; Polymethylmethacrylate; PMMA; Core-shell structure; MECHANICAL-PROPERTIES; TRIBOLOGICAL PROPERTIES; CARBON NANOTUBES; SCRATCH DAMAGE; TRANSFER FILM; POLYTETRAFLUOROETHYLENE; NANOCOMPOSITES; ADHESION; FILLERS; LATEX;

D O I：

10.1016/j.compositesb.2019.04.047

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

To achieve self-lubricating coating of polymer-based composite coatings with low coefficient of friction (COF) and high wear resistance, the core-shell structure was introduced via a seeded emulsion polymerization to improve wear resistance and self-lubricating properties of the coating. The effect of polytetrafluoroethylene (PTFE) encapsulated by polymethylmethacrylate (PMMA) shell on its wear resistance and lubricating properties under reciprocating dry friction was investigated. The experimental results revealed interesting examples of: the wear rate of PTFE coating was decreased from 232 x 10(-6) mm(3)/Nm to 1.04 x 10(-6) mm(3)/Nm and the COF decreased from 0.081 to 0.069. During reciprocating sliding tests, the results show that a continuous, uniform and thin PTFE/PMMA composite film is transferred to the GCr15 steel ball surface. It was demonstrated that the improved lubricating performance was associated with the dispersion effect from core-shell structure, which has a characteristic size in the nanometer range, and composite thus possess a much higher uniformity and higher dispersivity of reinforcement phase than do composite obtained by the conventional filling method.

引用

页码：316 / 322

页数：7

共 36 条

[1] Friction and wear behavior of zirconium oxide reinforced PMMA composites [J].

Akinci, A. ;

Sen, S. ;

Sen, U. .

COMPOSITES PART B-ENGINEERING, 2014, 56 :42-47

[2] THE ROLE OF COPPER-COMPOUNDS AS FILLERS IN TRANSFER FILM FORMATION AND WEAR OF NYLON [J].

BAHADUR, S ;

GONG, DL ;

ANDEREGG, JW .

WEAR, 1992, 154 (02) :207-223

[3]

Bahadur S, 2008, TRIBOL INTER ENG, V55, P17, DOI 10.1016/S1572-3364(08)55002-6

[4] Wear of polymers [J].

Briscoe, BJ ;

Sinha, SK .

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY, 2002, 216 (J6) :401-413

[5]

Briscoe BJ, 2008, TRIBOL INTER ENG, V55, P1, DOI 10.1016/S1572-3364(08)55001-4

[6] Clay exfoliation and organic modification on wear of nylon 6 nanocomposites processed by different routes [J].

Dasari, A ;

Yu, ZZ ;

Mai, YW ;

Hu, GH ;

Varlet, JL .

COMPOSITES SCIENCE AND TECHNOLOGY, 2005, 65 (15-16) :2314-2328

[7]

Dasari A, 2008, TRIBOL INTER ENG, V55, P374, DOI 10.1016/S1572-3364(08)55016-6

[8] Effects of particle size, particle/matrix interface adhesion and particle loading on mechanical properties of particulate-polymer composites [J].

Fu, Shao-Yun ;

Feng, Xi-Qiao ;

Lauke, Bernd ;

Mai, Yiu-Wing .

COMPOSITES PART B-ENGINEERING, 2008, 39 (06) :933-961

[9]

Gao JT, 2000, WEAR, V245, P100

[10] INVESTIGATION OF ADHESION WEAR OF FILLED POLYTETRAFLUOROETHYLENE BY ESCA, AES AND XRD [J].

GONG, DL ;

ZHANG, B ;

XUE, QJ ;

WANG, HL .

WEAR, 1990, 137 (01) :25-39

← 1 2 3 4 →