CIESC Journal ›› 2013, Vol. 64 ›› Issue (11): 4161-4166.DOI: 10.3969/j.issn.0438-1157.2013.11.037

• 表面与界面工程 • 上一篇    下一篇

阳离子三联表面活性剂/NaSS/St蠕虫状胶束及性能

穆瑞花, 吴文辉   

  1. 北京理工大学材料学院, 北京 100081
  • 收稿日期:2013-04-04 修回日期:2013-06-13 出版日期:2013-11-05 发布日期:2013-11-05
  • 通讯作者: 吴文辉
  • 作者简介:穆瑞花(1982-),女,博士研究生。

Preparation and properties of wormlike micelles formed by cationic trimer surfactant/NaSS/St

MU Ruihua, WU Wenhui   

  1. School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
  • Received:2013-04-04 Revised:2013-06-13 Online:2013-11-05 Published:2013-11-05

关键词: 三联表面活性剂, 蠕虫状胶束, 微结构, 性能评价

Abstract: Wormlike micelles(WLMs)with polymerizable group were formed in aqueous solutions of cationic trimer surfactant di(2-hydroxyl-dimethylene ether)-α,ω,γ-triple(dimethylcetylammonium chlorine),referred to as TrimerC16 by addition of sodium p-styrenesulfonate(NaSS).Then,styrene(St)monomer was solubilized into the hydrophobic core of the WLMs,presumably as the reactor for the polymerization reaction.The effect of polymerization temperature(Tp)and solubilization quantity of St on apparent viscosity(ηa)of the TrimerC16/NaSS/St polymerized system were studied with the viscosimetry method,and the properties of the solutions before and after polymerization were evaluated.The optimal molar concentration ratio of TrimerC16 to NaSS was 1/1.6,and the optimal Tp and solubilization quantity of St were 45℃ and 0.15 g,respectively.When shearing for 60 min at 170 s-1 shear rate in the range of heating from 70℃ to 100.5℃,ηa of the solutions after polymerization was 82.5 mPa·s.However,the ηa of the unpolymerized system without St decreased to 5 mPa·s after shearing for 30 min.When sand carrying ratio was 10%,sedimentation rates of seeds in the systems before and after polymerization were 0.385 cm·min-1 and 0.128 cm·min-1 at 50℃,respectively.Improved temperature and shear resistance,and sand carrying property of the polymerized system was due to the "lock-in" of WLMs microstructure by the polystyrene line produced in the micelles core and the TrimerC16-NaSS copolymer line bridged between core and shell.

Key words: trimer surfactant, wormlike micelles, microstructure, properties evaluation

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