کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10619121 | 988207 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Preparation and structures of electrospun PAN nanofibers as a precursor of carbon nanofibers
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
بیومتریال
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
Polyacrylonitrile (PAN) nanofibers as a precursor of carbon nanofibers with diameters in the range of 130-280Â nm were obtained by electrospinning of PAN/DMF solution. Morphologies and structures of PAN precursors were investigated by scanning electron microscopy (SEM), wide-angle X-ray diffraction (WAXD), infrared spectrometer (IR) and differential scanning calorimeter (DSC). Distribution of diameters of PAN precursor showed log normal distribution. Molecular chains were oriented within the electrospun fibers during the electrospinning process. The cyclization exothermic peak shifted to lower temperature for electrospun nanofibers, which suggested that cyclization was more easily initiated at lower temperature for electrospun nanofibers.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Synthetic Metals - Volume 155, Issue 1, 15 October 2005, Pages 157-161
Journal: Synthetic Metals - Volume 155, Issue 1, 15 October 2005, Pages 157-161
نویسندگان
S.Y. Gu, J. Ren, Q.L. Wu,