The tribological performance of 3-chloro-2-hydroxy propyl dimmer acid monoester (DAE) as additive in product oil was evaluated by using four-ball test machine.

• 利用四球试验机考察了二聚酸 3 氯 2 羟基丙单酯 (DAE)在 4种成品油中的摩擦学性能。