کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1269723 972460 2010 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Ultrasound stimulus effect on hydrogen bonding in networked alumina and polyacrylic acid slurry
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Ultrasound stimulus effect on hydrogen bonding in networked alumina and polyacrylic acid slurry
چکیده انگلیسی

The influence of ultrasound (US) on the viscosity of aqueous slurry composing polyacrylic acid (PAA) and alumina was studied. For exposure to an aqueous slurry solution, US waves emitted at three different frequencies of 28, 45, and 100 kHz were used. Results show that the stimulus effect of US on viscosity change was a breakage of the hydrogen bonding networks of alumina and PAA in the slurry solution. That decrease in viscosity was enhanced strongly by US exposure as the output power was increased from 175 to 300 W. In addition, a lower US frequency was effective for slurry viscosity reduction. The reduced viscosity of the slurry also depended on the solution pH. After US was stopped, the viscosity increased gradually and recovered to its original value within about 15 min. The stimulus effect on the viscosity change was cycled by US.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ultrasonics Sonochemistry - Volume 17, Issue 1, January 2010, Pages 186–192
نویسندگان
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