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Thickening effects of interactions between engine oil additives
Author(s) -
Bartha L.,
Kis G.,
Auer J.,
Kocsis Z.
Publication year - 2001
Publication title -
lubrication science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.632
H-Index - 36
eISSN - 1557-6833
pISSN - 0954-0075
DOI - 10.1002/ls.3010130304
Subject(s) - thickening , viscosity index , viscosity , chemical engineering , degradation (telecommunications) , chemistry , thermal decomposition , decomposition , thermal stability , polar , oil viscosity , organic chemistry , materials science , composite material , computer science , base oil , polymer science , scanning electron microscope , telecommunications , physics , astronomy , engineering
Additives of low and high molecular weight used as performance enhancers in engine oil formulations can interact through their polar functional groups to form associates and complexes. These often have a significant thickening effect that could substitute for viscosity and viscosity‐index improvers. We therefore investigated the stability of these associates to thermal degradation, oxidation, and mechanical decomposition, in an attempt to seek information about their feasibility.