Common black film stability and synergetic adsorption in ionic−nonionic mixed surfactant systems

H. Matsubara, K. Chida, M. Yoshimura, M. Aratono, N. Ikeda

研究成果: ジャーナルへの寄稿学術誌査読

3 被引用数 (Scopus)

抄録

In this paper, the thickness and stability of common black films (CBFs) in two ionic–nonionic mixed surfactant systems were compared based on the phase diagram of the adsorbed film. The mixed surfactant systems examined were (1) cetyltrimethylammonium chloride (CTAC) – n-dodecyl-β-D-maltoside (β-C12G2) and (2) lithium perfluorooctanesulfonate (LiFOS) – tetraethyleneglycolmonooctyl ether (C8E4) systems. When the attraction between the two surfactants in the adsorbed film was weak, the foam film collapsed as the observed bulk composition of the nonionic surfactant, X^2, became 0.09 in system (1). However, the CBF of system (2) was stable up to X^2 > 0.96 due to the strong synergism between the ionic and nonionic surfactants maintaining a high ionic surfactant composition in the adsorbed film, thus leading to a high surface charge density that stabilize the CBF.

本文言語英語
論文番号123932
ジャーナルColloids and Surfaces A: Physicochemical and Engineering Aspects
582
DOI
出版ステータス出版済み - 12月 5 2019

!!!All Science Journal Classification (ASJC) codes

  • 表面および界面
  • 物理化学および理論化学
  • コロイド化学および表面化学

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