Anti-wear properties of thiadiazole and dithiocarbamate derivatives

Abstract

Some thiadiazole and dithiocarbamate derivatives were desinged and synthesized in order to study the potential use as anti-wear additives. Their anti-wear properties in three different base oils (DB-51, soybean, and 100 N) were evaluated using a four-ball wear tester (ASTM D4172). The solubilities of dithiocarbamate derivatives in the base oils were better than those of thiadiazole derivatives. The compounds containing oleoyl group rather than nonanoyl group gave good anti-wear properties. The solubilities and anti-wear properties were explained by the polarity of the compounds.