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日用化学工业 ›› 2015, Vol. 45 ›› Issue (10): 541-545.doi: 10.13218/j.cnki.csdc.2015.10.001

• 基础研究 •    下一篇

糖基双子阳离子表面活性剂的表面活性

王军1, 陈玉菲1, 李妮妮2, 杨许召1, 邹文苑1   

  1. 1.郑州轻工业学院 材料与化学工程学院,河南 郑州 450002;
    2.西安开米股份有限公司,陕西 西安 710061
  • 收稿日期:2015-07-09 修回日期:2015-09-22 出版日期:2015-10-22 发布日期:2019-04-10
  • 作者简介:王 军(1961-),男,陕西凤翔人,硕士,教授,电话:(0371)63556921。
  • 基金资助:
    “十二五”国家科技支撑计划资助项目(2013BAC01B04); 国家自然科学基金资助项目(21176228); 郑州市科技项目(141PQYJS555)

Surface activity of sugar-based Gemini cationic surfactants

WANG Jun1, CHEN Yu-fei1, LI Ni-ni2, YANG Xu-zhao1, ZOU Wen-yuan1   

  1. 1.College of Material and Chemical Engineering,Zhengzhou University of Light Industry,Zhengzhou,Henan 450002,China;
    2.Xi��an Kaimi Co.,Ltd.,Xi��an,Shaanxi 710061,China;
  • Received:2015-07-09 Revised:2015-09-22 Online:2015-10-22 Published:2019-04-10

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摘要： 通过吊片法和最大泡压法测定了4种糖基双子阳离子表面活性剂(SGCS)的平衡表面张力和动态表面张力,对其表面活性进行了评价。SGCS的γcmc在30 mN/m左右,cmc均在10-4 mol/L数量级,比普通阳离子表面活性剂的cmc低1~2 个数量级,表明SGCS具有优良的表面活性。SGCS的lg ccmc和pc20与疏水基的碳链长度符合线性关系。随着SGCS浓度的增大,动态表面张力下降速度加快,更容易达到介平衡。随着温度的升高,动态表面张力下降速率加快,说明温度越高动态表面活性越强。

关键词: 糖基表面活性剂, 双子表面活性剂, 阳离子, 表面张力

Abstract: Equilibrium surface tension and dynamic surface tension of four kinds of sugar-based Gemini cationic surfactant (SGCS) were determined with Wilhelmy method and maximum bubble pressure method;and the surface activity of SGCS was evaluated.Value of γcmc of SGCS is about 30 mN/m and cmc is in order of magnitude of 10-4 mol/L,which is 1-2 order of magnitude lower than that of conventional cationic surfactants.It showed that SGCS has excellent surface activity.There are linear relationship between lg ccmc and carbon number of the hydrophobic group,as well as pc20 and carbon number of the hydrophobic group.Following the increasing of concentration of SGCS and temperature,the decreasing rate of the dynamic surface tension rises rapidly.It showed that the higher the temperature,the stronger the dynamic surface activity of SGCS.

Key words: sugar-based surfactant, Gemini surfactant, cationic, surface tension

中图分类号: 

  • TQ423.12