Pengujian Sifat Tribologi Biolubricant Ester Sintetis Minyak Sawit-Trimetilp…

ABSTRACT Lubrication is used to reduce friction so that the surface of the object does not wear out. Currently, the raw material for making lubricants is mineral oil. The continuous use of mineral oil will have a negative impact on the environment because it is toxic and non-biodegradable. Therefore, renewable lubricants that are safe for the environment are needed, namely, biolubricants. Biol…