物理化学学报 >> 2004, Vol. 20 >> Issue (07): 763-766.doi: 10.3866/PKU.WHXB20040720

研究简报 上一篇    下一篇

双子表面活性剂的粘度行为

韩利娟;陈洪;罗平亚   

  1. 西南石油学院 油气藏地质及开发工程国家重点实验室,南充 637001
  • 收稿日期:2004-01-08 修回日期:2004-03-08 发布日期:2004-07-15
  • 通讯作者: 陈洪 E-mail:chenh@swpi.edu.cn

The Viscosity Behavior of Gemini Surfactants

Han Li-Juan;Chen Hong;Luo Ping-Ya   

  1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Engineering, Southwest Petroleum Institute, Nanchong 637001
  • Received:2004-01-08 Revised:2004-03-08 Published:2004-07-15
  • Contact: Chen Hong E-mail:chenh@swpi.edu.cn

摘要: 对阳离子双子表面活性剂在溶液中的粘度行为进行了研究.发现联结基长度与双子表面活性剂在稀溶液中能否表现出粘度行为有很大关系,联结基数s = 2、3、4的双子表面活性剂稀溶液表现出显著的增粘性,但 s =4的某些双子表面活性剂的粘度具有时间依赖性,而s = 6的双子表面活性剂则没有明显的粘度行为.双子表面活性剂烷基链越长,其增粘能力也越强.联结基数s = 2或3的部分双子表面活性剂,其粘度随温度的变化有一最大值.双子表面活性剂与有机酸盐的复合物也表现出很强的增粘行为.

关键词: 双子表面活性剂, 粘度, 时间依赖性

Abstract: The viscosity behaviors of cationic gemini surfactants were investigated and the behaviors were found to be closely related to spacer groups and alkyl chains of the gemini surfactants. For gemini surfactants with shorter spacer group, i.e. s = 2, 3 or 4,their solutions exhibit striking viscosity behaviors. However, there is a time effect on viscosity for solutions of some gemini surfactants with s = 4. But for gemini surfactants with spacer group s = 6, the solutions have almost the same viscosity as that of solvent even at high concentration. The viscosity increases with the increasing of alkyl carbon number at the same surfactant concentration. For some surfactants with spacer group s =2 or 3, the viscosities of solutions undergo a maximum as a function of temperature. The mixtures of gemini surfactants and sodium salicylate (NaSal) also exhibit a great viscosification

Key words: Gemini surfactants, Viscosity, Time dependent