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OTAC/NaSal虫状胶束流体微观结构与线性黏弹性

王治国 王树众 孙晓 景泽锋 吴金桥 何静

王治国, 王树众, 孙晓, 景泽锋, 吴金桥, 何静. OTAC/NaSal虫状胶束流体微观结构与线性黏弹性[J]. 力学学报, 2013, 45(6): 854-860. doi: 10.6052/0459-1879-13-062
引用本文: 王治国, 王树众, 孙晓, 景泽锋, 吴金桥, 何静. OTAC/NaSal虫状胶束流体微观结构与线性黏弹性[J]. 力学学报, 2013, 45(6): 854-860. doi: 10.6052/0459-1879-13-062
Wang Zhiguo, Wang Shuzhong, Sun Xiao, Jing Zefeng, Wu Jinqiao, He Jing. THE MICROSTURCTURE AND LINEAR VISCOELASTICITY OF OTAC/NASAL WORMLIKE MICELLES[J]. Chinese Journal of Theoretical and Applied Mechanics, 2013, 45(6): 854-860. doi: 10.6052/0459-1879-13-062
Citation: Wang Zhiguo, Wang Shuzhong, Sun Xiao, Jing Zefeng, Wu Jinqiao, He Jing. THE MICROSTURCTURE AND LINEAR VISCOELASTICITY OF OTAC/NASAL WORMLIKE MICELLES[J]. Chinese Journal of Theoretical and Applied Mechanics, 2013, 45(6): 854-860. doi: 10.6052/0459-1879-13-062

OTAC/NaSal虫状胶束流体微观结构与线性黏弹性

doi: 10.6052/0459-1879-13-062
基金项目: 陕西省教育厅2012年科学研究项目计划资助项目(12JK0782).
详细信息
    通讯作者:

    王树众,教授,主要研究方向:石油工程复杂流体及多相流。E-mail:szwang@mail.xjtu.edu.cn

  • 中图分类号: O373

THE MICROSTURCTURE AND LINEAR VISCOELASTICITY OF OTAC/NASAL WORMLIKE MICELLES

Funds: The project was supported by the Scientific Research Plan of Shaan Xi Province Ministry of Education in 2012 (2JK0782).
  • 摘要: 采用流变学、冷冻蚀刻电镜方法,研究了十八烷基三甲基氯化铵(octadecyl trimetryl ammoiumchloride,OTAC)阳离子表面活性剂和水杨酸钠(NaSal)体系蠕虫状胶束的形成、线性黏弹性与微观胶束结构。研究结果表明,在OTAC主溶液与NaSal质量比为5:1时,体系形成了最大长度达1um左右的蠕虫状胶束。当OTAC主溶液质量浓度为1.4%时,以线性虫状胶束为主;当浓度大于2.8%时,胶束开始相互缠结,形成网状结构;当浓度达到4%时,胶束缠结长度le值达到一个极小值,松弛时间也达到最大值2.86s,说明此时体系形成了致密的网状结构,并呈现良好的黏弹性。在较低振荡频率时,缠结的虫状胶束符合Maxwell流体特征,但在较高频率区域,OTAC/NaSal蠕虫状胶束表现出了不同于一般聚合物的应力释放机制,随着网状结构的增强,其应力释放机制呈现虫状胶束所特有的“Rouse-like”和“breathing”效应。

     

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出版历程
  • 收稿日期:  2013-03-08
  • 修回日期:  2013-05-28
  • 刊出日期:  2013-11-18

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