关键词: N—月桂酰基丙氨酸, 润滑油添加剂, 生物降解, 摩擦, 磨损试验

Abstract: N-lauroyl alanine was synthesized under alkali conditions, and its structure was characterized by FT-IR． Using N-lauroyl alanine as lube oil additive, the effect of N-lauroyl alanine on the biodegradation of HVI 350 mineral base oil was studied, and its tribological behavior was evaluated by a four-ball friction tester．The results showed that the degradation of HVI 350 base oil was effectively accelerated by N-lauroyl alanine; the lube oil exhibited good anti-wear and friction-reducing performance, improved load-carrying capacity, as well as excellent corrosion resistance and anti-rust property, which indicated that N-lauroyl alanine is an environmental friendly, multi-functional lubricating additive.

Key words: N-lauroyl alanine, lubricating additive, biodegradation, friction, wear test