کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
595296 | 1454007 | 2010 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Equilibrium and dynamic surface properties of trisiloxane aqueous solutions: Part 1. Experimental results
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Tensiometry, ellipsometry and Brewster angle microscopy were used to measure equilibrium and dynamic surface tension, as well as surface adsorption, of aqueous solutions of trisiloxane surfactants. Complex adsorption curves, including inflection points, have been found for the surfactants with long etoxylated chains. Surface aggregates at the liquid–air interfaces have been detected for the trisiloxanes that show superspreading behaviour onto moderately hydrophobic surfaces, while no aggregates were detected for the shorter trisiloxanes. The latter suggests that those surface aggregates may act as reservoirs of surfactant molecules to maintain the required surface tension in the course of spreading.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Colloids and Surfaces A: Physicochemical and Engineering Aspects - Volume 365, Issues 1–3, 5 August 2010, Pages 199–203
Journal: Colloids and Surfaces A: Physicochemical and Engineering Aspects - Volume 365, Issues 1–3, 5 August 2010, Pages 199–203
نویسندگان
Hernan A. Ritacco, Francisco Ortega, Ramon G. Rubio, Natalia Ivanova, Victor M. Starov,