Film Thickness and Mechanical Properties of Adsorbed Neutral and Basic Zinc Diisobutyl Dithiophosphates~direct C

摘要

A surface force apparatus (SFA) has been used to determine film thickness and film properties of adsorbed neutral and basic diisobutyl zinc dithiophosphates (ZnDTPs) on cobalt surfaces. Sliding experiments were also carried out and film characteristics determined after sliding. Dodecane was used as the solvent. Experiments with dodecane only show dodecane molecules form an immobile monolayer on cobalt surfaces. When subjected to sliding, this monolayer is displaced, and attractive forces between the coablt surfaces are observed.