کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
609655 880627 2010 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Foamability of aqueous suspensions of fine graphite and quartz particles with a triblock copolymer
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
Foamability of aqueous suspensions of fine graphite and quartz particles with a triblock copolymer
چکیده انگلیسی

The foamability of a triblock copolymer solution was strongly influenced by the presence of particles. The stability of the foam was evaluated by measuring the foam volume, the drainage of water and particles, and the bubble size as a function of time. The higher stability of foams produced with hydrophilic quartz particles, compared with hydrophobic graphite particles, was related to the presence of quartz aggregates in the lamellae and Plateau borders reducing water drainage, and therefore thin film rupture and bubble coalescence. The copolymer adsorbed slightly more on the hydrophobic graphite, causing the particles to disperse and drain, with the water out of the foam, whereas the hydrophilic quartz aggregated and remain in the lamellar and Plateau borders of the foam.

Photograph of foam transition for a 33 wt.% graphite suspension from stage one in the foam evolution-curve.Figure optionsDownload high-quality image (99 K)Download as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Colloid and Interface Science - Volume 348, Issue 2, 15 August 2010, Pages 460–468
نویسندگان
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