中文摘要：

表面活性剂能够减小液体的表面张力以及两相液体间的界面张力，界面张力的减小有利于促进气体水合物快速形成和提高水合物储气能力．为定量研究两相液体间界面张力对气体水合物形成的影响，用界面张力仪实测不同温度时蒸馏水、HCFGl41b的表面张力以及HCFG141b／蒸馏水、HCFC-141b／十二烷基硫酸钠溶液（0．247％）、HCFC-141b／十二烷基磺酸钠溶液（0．245％）、HC陀141b／十二烷基苯磺酸钠溶液（0．0576％）的界面张力，测试结果表明，表面活性剂对降低两相液体间界面张力的作用十分明显，其中十二烷基苯磺酸钠溶液对降低界面张力最为突出，降到HCFC-141b／蒸馏水界面张力值的9％左右，为定量研究气体水合物等优选表面活性剂提供了科学的依据．

英文摘要：

The surfactants can decrease the surface tension of liquid and the interfacial tension of twophase liquid. Decreasing interfacial tension of two phases liquid is propitious to accelerate hydrate formation and improve hydrate storage capacity. In order to quantitatively study the effect of interfacial tension on gas hydrate formation, the surface tension of distilled water and HCFC-141b using interfacial tensiometer, as well as interfacial tension of HCFC-141b/distilled water, HCFC-141b/solution of sodium dodecyl sulfate （0. 247%）, HCFC-141b/solution of solidum laurysulfonate （0. 245%）, and HCFC-141b/solution of sodium dodecylbenzenesulfonate （0. 057 6%） were measured by using interfacial tensiometer. The test results indicated that surfactants could remarkably reduce the interfacial tension of two-phase liquid, and sodium dodecylbenzenesulfonate was the best one in reducing interfacial tension, the reduced interracial tension becoming 9%. This provided a scientific basis for selection of surfactants in gas hydrate formation.