کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
77307 | 49162 | 2006 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electrorheological properties of new mesoporous material with conducting polypyrrole in mesoporous silica
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
In this study, a new mesoporous material with semiconducting polypyrrole (PPy) encapsulated in the channels of mesoporous silica (MCM-41) was synthesized and used as dispersed phase for electrorheological (ER) fluids. Rheological and dielectric properties of PPy-MCM-41 based suspensions were investigated with the conclusion that PPy-MCM-41 fluid exhibits better ER behavior than that without PPy. The static yield stress of 10 wt.% PPy-MCM-41 fluid as a function of applied electric field strength shows two different slopes depending on the electric field strength. Furthermore, the dielectric spectra indicate that encapsulated PPy increases the interfacial polarizability of mesoporous material and induces a higher ER effect.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Microporous and Mesoporous Materials - Volume 94, Issues 1–3, 8 September 2006, Pages 193–199
Journal: Microporous and Mesoporous Materials - Volume 94, Issues 1–3, 8 September 2006, Pages 193–199
نویسندگان
Qilin Cheng, Vladimir Pavlinek, Anezka Lengalova, Chunzhong Li, Tomas Belza, Petr Saha,