کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10406821 | 892650 | 2005 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Influence of charging conditions on permeability for the membrane of porous polytetrafluoroethylene (PTFE) film electret
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی برق و الکترونیک
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Influence of charging conditions on permeability for the membrane of porous polytetrafluoroethylene (PTFE) film electret Influence of charging conditions on permeability for the membrane of porous polytetrafluoroethylene (PTFE) film electret](/preview/png/10406821.png)
چکیده انگلیسی
In this paper, the influence of charging conditions on permeability of porous PTFE membranes is studied by constant voltage corona charging at room and elevated temperatures and by measuring the flow rate in water when porous PTFE electret films are used as a filter membrane. We found that charging field and charging temperature strongly affect the flow rate of water, but charging time does not influence the flow rate markedly. The structure of porous PTFE film, investigated by a scanning electron microscope, is important for understanding the influence of charging conditions on the membrane permeability. The increase of the ratio of the bulk charge density to the surface charge density of the porous electret films is performed by thermal treatment during charging. Such porous films may be employed as electret filter membranes with high efficiency to purify dielectric liquids.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Electrostatics - Volume 63, Issue 5, May 2005, Pages 387-398
Journal: Journal of Electrostatics - Volume 63, Issue 5, May 2005, Pages 387-398
نویسندگان
Zhongfu Xia, Andreas Buechtemann, Zhenlian An, Jian Jiang, Rudi Danz, Armin Wedel,