Influence of ionic Structure on tribological properties of poly(dimethylsiloxane-alkylene oxide) graft copolymers

被引：13

作者：

Totolin, Vladimir ^{[1
]}

Ranetcaia, Natalia ^{[2
]}

Hamciuc, Viorica ^{[2
]}

Shore, Nicholas ^{[1
]}

Doerr, Nicole ^{[1
]}

Lbanescu, Constanta ^{[3
]}

Simionescu, Bogdan C. ^{[2
,3
]}

Harabagiu, Valeria

机构：

[1] AC2T Res GmbH, A-2700 Neustadt, Austria

[2] Petru Poni Inst Macromol Chem, Iasi, Romania

[3] Gheorge Asachi Tech Univ Iasi, Iasi, Romania

来源：

TRIBOLOGY INTERNATIONAL | 2013年 / 67卷

关键词：

Siloxane graft copolymers; Ionic liquids; Tribochemistry; LUBRICATION PROPERTIES; FRICTIONAL-PROPERTIES; 6-STEEL CONTACTS; LIQUIDS; COMPLIANT;

D O I：

10.1016/j.triboint.2013.06.015

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Lubricants based on ionic liquid (IL) modified poly(dimethylsiloxane-alkylene oxide) graft co-polymers (GC) were synthesised by condensation of hydroxyalkyl groups linked to GC chains and to IL moieties. The tribological performances of neat and IL-modified co-polymers were investigated in reciprocating steel steel and in rotating steel-PTFE contacts at 30 and 100 degrees C. A clear dependence of friction and wear on temperature was observed for both neat and IL-modified co-polymers. Generally, friction decreased at higher temperature, especially pronounced for neat co-polymers. Neat as well as IL-modified copolymers tend to increase wear at elevated temperature. At 30 degrees C, the IL-modified co-polymers exhibited significantly improved anti-wear properties when compared to neat co-polymers with bis(trifluoromethylsulfonyl)amide anion being the crucial moiety involved in tribochemical reactions. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：1 / 10

页数：10