A Nano-scale Study on Film Stability

Thickness and stability of films formed by different surfactants are studied by means of thin film balance (TFB) technique to observe the formation and stability of the films. It is demonstrated that stable Newton black films (NBFs) can be easily obtained with non-ionic surfactants (C12E5, C12G2) than ionic surfactants (C12TAB, C16TAB). Common black film (CBF) was obtained with C16TAB at 5×10-3 mol/L, while the film of C12TAB is unstable. It has been demonstrated that the horizontal forces should also be taken into consideration for explaining film stability.

作 者： Cheng TAO Gen Lin TIAN Regine V.KLITZING Peter BEHRENBRUCH   作者單位： Cheng TAO(Key Lab of Colloid and Interface Science,The Centre for Molecular Science,Institute of Chemistry,Chinese Academy of Sciences,Beijing 100080)

Gen Lin TIAN,Peter BEHRENBRUCH(The University of Adelaide,Australia 5005)

Regine V.KLITZING(Technical University of Berlin,Germany) 

刊 名： 中國化學快報(英文版)  ISTIC SCI 英文刊名： CHINESE CHEMICAL LETTERS  年，卷(期)： 2004 15(7)  分類號：   關鍵詞： Nano-film   surfactant   film stability  

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