کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
594516 1453981 2011 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Global versus local dynamics during destabilization of eco-friendly cosmetic emulsions
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
Global versus local dynamics during destabilization of eco-friendly cosmetic emulsions
چکیده انگلیسی

Eco-friendly cosmetic emulsions are usually less stable than conventional ones as they involve milder chemicals or less intense (energy consuming) production processes. In order to improve their stability it is important to understand local phenomena occurring within the emulsions during phases separation. Most of the techniques for monitoring local emulsion stability provide information of droplet sizes either from direct visual observations at the boundaries of the emulsion (container wall) or from measurements on withdrawn samples. Therefore, non-intrusive, continuous techniques, capable of sensing the destabilization of emulsion over the entire cross-section of a container, are of particular significance. In this context, measurements of a dual-probe local electrical conductance technique are compared with global volumetric measurements. Eco-friendly cosmetic oil-in-water emulsions are produced with different olive oil fractions, emulsifier (GMS) concentrations and agitation schemes. Local information from electrical signals indicated flocculation phenomena which were completely missed by global volumetric measurements.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Colloids and Surfaces A: Physicochemical and Engineering Aspects - Volume 391, Issues 1–3, 5 November 2011, Pages 195–200
نویسندگان
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