Drainage of a Wetting Liquid: Effective Slippage or Polymer Depletion?

被引：10

作者：

Cayer-Barrioz, J. ^{[1
]}

Mazuyer, D. ^{[1
]}

Tonck, A. ^{[1
]}

Yamaguchi, E. ^{[2
]}

机构：

[1] Ecole Cent Lyon, LTDS, UMR5513, CNRS, F-69134 Ecully, France

[2] Chevron Oronite Co LLC, Richmond, CA 94802 USA

来源：

TRIBOLOGY LETTERS | 2008年 / 32卷 / 02期

关键词：

Friction; Slip; Surface force apparatus;

D O I：

10.1007/s11249-008-9365-7

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A surface force apparatus has been used to investigate the drainage of a viscosity improver lubricant. The characterization of the VI confined interface has been performed. Surprisingly, dynamical measurements enlighten a significant negative value of the immobile layer thickness. This result is discussed in terms of occurrence of slip at the wall, liquid-solid interface wettability, surface roughness and cleanliness, and friction experiments. Consequently, an interface molecular organization modelling is proposed based on polymer depletion near the solid-liquid interface.

引用

页码：81 / 90

页数：10

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