Browse Publications Technical Papers 962037
1996-10-01

Friction and Wear Reduction by Boundary Film-Forming Viscosity Index Improvers 962037

Recent work by the authors has indicated that some types of viscosity index improver polymers can form thick boundary films in lubricated contacts. These films appear to result from the adsorption of molecules of polymer on metal surfaces to produce layers, about 20 nm thick, having higher polymer concentration and thus higher viscosity than the bulk solution.
In the current paper it is shown that these VII boundary films are able to separate rubbing surfaces in both rolling and sliding contacts and that they make a significant contribution towards reducing friction and wear at temperatures up to at least 140°C. The mechanism by which these polymers reduce friction and wear is elucidated.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Preview Document Add to Cart
Members save up to 16% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Influence of Polyalkylmethacrylate Viscosity Index Improvers on the Efficiency of Lubricants

2003-01-1967

View Details

TECHNICAL PAPER

Friction Behaviour of ZDDP Films in the Mixed, Boundary/EHD Regime

962036

View Details

TECHNICAL PAPER

Experimental Verification of Residual Compression in Tempered Automotive Glass with Holes

2003-26-0012

View Details

X