Molecular Interactions between Ionic Liquid Lubricants and Silica Surfaces: An MD Simulation Study.

ABSTRACT: The unique physicochemical properties of ionic liquids (ILs) attracted interest in their application as lubricants of micro/nano-electromechanical systems. This work evaluates the feasibility of using the protic ionic liquids [4-picH][HSO₄], [4-picH][CH₃SO₃], [MIMH][HSO₄], and [MIMH][CH₃SO₃] and the aprotic ILs [C₆mim][HSO₄] and [C₆mim][CH₃SO₃] as additives to model lubricant poly(ethylene glycol) (PEG200) to lubricate silicon surfaces. Additives based on the cation [4-picH]⁺ exhibited the best tribological performance, with the optimal value for 2% [4-picH][HSO₄] in PEG200 (w/w). Molecular dynamics (MD) simulations of the first stages of adsorption

SUBMITTER: Donato MT 

PROVIDER: S-EPMC10945478 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature