Detergent-Polymer Interactions in Hydrocarbon Solvents: A Viscometric Study Texaco Additive Research and Development

Format:

Conference/Event

Author/Creator:

Papke, Brian L., author.

Conference Name:

International Fuels and Lubricants Meeting and Exposition (1992-10-19 : San Francisco, California, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1992

Summary:

Two common internal combustion engine lubricant additives, overbased calcium sulfonate detergents and dispersant olefin copolymer (DOCP) viscosity index improvers, are shown to interact strongly, resulting in large (circa 50%) increases in relative viscosity in hydrocarbon solutions. This viscosity increase is believed to result from bridging interactions from either physi- or chemisorption of DOCP functional groups onto the inorganic core of the sulfonate detergent colloid, with a resulting increase in effective polymer molecular weight. Viscometric properties of the detergent/DOCP interaction products, shear stability and the effect of competitive interactions with polyisobutenyl succinimide dispersant additives are described

Notes:

Vendor supplied data

Publisher Number:

922281

Access Restriction:

Restricted for use by site license