INTERFACIAL ACTIVITY OF SUCCINIMIDE AND INTERACTIONS BETWEEN SUCCINIMIDES AND ZDDP

The interfacial activity and the capacity to dissolve pyruvic acid in base oil of succinimides and interactions between succinimides and ZDDP were investigated.Experimental data indicated that interfacial activity of mono succinimide in base oil was superior to that of bis succinimide and multi succinimide.When mixed with ZDDP,succinimides exhibit better capacity to dissolve pyruvic acid in base oil.The interaction between mono succinimide and ZDDP is stronger than that between bis or multi succinimide and ZDDP