烯基丁二酸对汽轮机油乳状液稳定性的影响

烯基丁二酸是汽轮机油常用的一种防锈剂，通过实验分别测定了含烯基丁二酸的汽轮机油/蒸馏水及汽轮机油/合成海水体系的界面张力、界面剪切黏度、油相黏度及乳状液稳定性。结果表明，烯基丁二酸可以显著降低汽轮机油/蒸馏水体系的界面张力，形成的界面膜强度较强，界面剪切黏度较大，形成的乳状液较稳定。当水相为合成海水时，烯基丁二酸的界面活性进一步增强，界面张力更低，能更多的吸附到油水界面，形成致密的、强度较高的界面膜，使乳状液稳定性增强，对汽轮机油乳化和乳状液稳定起主要控制作用。

INFLUENCE OF ALKENYL SUCCINIC ACID ON STABILITY OF STEAM TURBINE OIL EMULSION

alkenyl succinic acid as an anti-rust additive is generally used in steam turbine oil. The interfacial tension, interfacial shear viscosity,oily viscosity and stability of steam turbine oil-distilled water and steam turbine oil-synthetic seawater which contain alkenyl succinic acid have been tested in laboratory. Results showed that alkenyl succinic acid can reduce interfacial tension of steam turbine oil-distilled water observably. At the same time, the intensity of interface membrane and the interfacial shear viscosity are relatively strong; and the emulsion is relatively steady. When the water is synthetic seawater , the interfacial activeness of alkenyl succinic acid is farther stronger; and the interfacial tension is farther smaller. So the ——can be adsorbed in the interface of oil-water at best. And then the stability of emulsion is better because of the compact and strong interface membrane. It’s most important for the stability of steam turbine oil emulsion.