Pengaruh Penambahan Graphene Nanosheet 0,1 % Dan Variasi Konsentrasi Surfakta…

ABSTRACT This study investigated the tribological properties of vegetable lubricants formulated using synthetic esters based on palm oil (TMP), graphene nanosheets (0.1%wt), and varying compositions of Span 60 surfactant to optimize dispersion stability, viscosity, and coefficient of friction (COF). The results showed that graphene nanosheets increased viscosity at 40℃ and 100℃, while Span…