کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
603265 880200 2015 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Ion specific effects in foam films
ترجمه فارسی عنوان
اثرات خاص یون در فیلم های فوم
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
چکیده انگلیسی


• Ion specific effects are observed in foam films
• The affinity of larger ions to the film surface is stronger than for small ions due to hydrophobic solvation at the interface.
• The choice of ions has a strong effect on surface potential, thickness and stability of foam films
• Anion effects occur even at slightly negatively pre—charged foam film surfaces.
• The air/water interface is negatively charged

Ion specific effects are pronounced at surfaces. Therefore foams and foam films are suitable objects to study ion specific effects. The relative amount of adsorbed ions is ususally indirectly determined by disjoining pressure isotherms. The determined potential of the film surfaces is discussed in context with the surface charge of the neat air/water interface.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Current Opinion in Colloid & Interface Science - Volume 20, Issue 2, April 2015, Pages 124–129
نویسندگان
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