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日用化学工业 ›› 2016, Vol. 46 ›› Issue (4): 200-203.doi: 10.13218/j.cnki.csdc.2016.04.004

• 开发与应用 • 上一篇    下一篇

月桂酰胺丙基氧化胺的吸附性能研究

张雯,葛际江,张贵才,王洋,宋开飞   

  1. 中国石油大学华东 石油工程学院,山东 青岛 266555
  • 出版日期:2016-04-22 发布日期:2016-04-22
  • 作者简介:张 雯(1992-),女,河南人,硕士研究生,电话:18306489714,E-mail:18306489714@163.com。
  • 基金资助:
    国家自然科学基金资助项目(51574266);山东省自然科学基金重点资助项目(ZR2014EZ002);中国石油科技创新基金资助项目(2015D-5006-0205)

Adsorption performance of lauramidopropyl amine oxide

ZHANG Wen,GE Ji-jiang,ZHANG Gui-cai,WANG Yang,SONG Kai-fei   

  1. School of Petroleum Engineering,China University of Petroleum,Qingdao,Shandong 266555,China
  • Online:2016-04-22 Published:2016-04-22

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摘要： 合成了月桂酰胺丙基氧化胺(LAO),利用pH计测定了其等电点,利用高效液相色谱仪、表面张力仪分别研究了pH和温度等因素对其在石英砂表面吸附性能的影响以及其对十二烷-水-玻璃三相接触角的影响。结果表明:LAO的等电点在pH＝9左右;随着pH升高,LAO水溶液的临界胶束浓度降低;随着温度和pH的升高,LAO在石英砂表面的吸附量下降;随着LAO质量浓度的增加,十二烷-水-玻璃三相接触角先增加后减小至平衡;LAO在石英砂表面的吸附为双层吸附。

关键词: 两性表面活性剂, 月桂酰胺丙基氧化胺, 吸附

Abstract: Lauramidopropyl amine oxide (LAO) was synthesized.The isoelectric point of LAO,the effect of pH and temperature on adsorption behavior of LAO on the surface of the quartz sand and the effect of LAO on contact angle of the dodecane/water/glass were systematically investigated by using pH meter,high performance liquid chromatograph and surface tension meter respectively.Results showed that the isoelectric point of LAO is close to pH of 9;the increase of pH causes the critical micelle concentration of LAO to decrease;the increase of temperature and pH causes the adsorption of LAO on the surface of quartz sand to decrease;the contact angle of the dodecane/water/glass increases firstly,and then decreases to balance by increasing the mass concentration of LAO;the adsorption mechanism of LAO on the surface of quartz sand is double layer adsorption.

Key words: amphoteric surfactant, lauramidopropyl amine oxide, adsorption

中图分类号: 

  • TQ423.3