کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
613444 880722 2006 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Dynamic surface tension of micellar solutions in the millisecond and submillisecond time range
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
Dynamic surface tension of micellar solutions in the millisecond and submillisecond time range
چکیده انگلیسی

The analysis of the available bubble life times and dead times for the bubble pressure tensiometer BPA-1S shows that dynamic surface tensions can be measured also for surfactant solutions at concentrations many times higher than the corresponding CMC. For the three nonionic surfactants Triton X-100, Triton X-45, and C14EO8 experiments are performed for solutions with a concentration of up to 200 times the CMC (C14EO8). Comparison of the experimental data with micelle kinetics models yields rate constants for the fast micelle dissolution process, which are in a good agreement with values obtained by other experimental methodologies.

Bubble pressure tensiometry can be applied to surfactant solutions far above CMC. Experimental data for Tritons and C14EO8 yield micellar kinetics rate constants for the fast micelle dissolution process.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Colloid and Interface Science - Volume 302, Issue 1, 1 October 2006, Pages 40–46
نویسندگان
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