کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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5182717 | 1380997 | 2013 | 7 صفحه PDF | دانلود رایگان |
Fully-hydrolyzed poly (vinyl alcohol) (PVA) nanofibers were successfully electrospun from aqueous solutions of PVA in the presence of acetic acid. A continuous spinning of uniform PVA nanofibers proceeded by the addition of acetic acid due to the changes of electronic conductivity and surface tension of aqueous solution of PVA. When cross-linking agent 1 was added to aqueous solution of PVA and subsequent thermal treatment of as-spun nanofibers, chemically cross-linked PVA nanofibers were achieved to resist disintegration in contact with hot water and the tensile mechanical property of nanofiber non-wovens was greatly improved by the formation of cross-linking points. Magnetite was deposited uniformly onto the hydrophilic surface of cross-linked PVA nanofibers and the resulted nanofibers decorated with magnetite showed a magnetic responsiveness. The deposition of magnetite on the PVA nanofibers can generate self-standing magnetic non-wovens.
Journal: Polymer - Volume 54, Issue 1, 8 January 2013, Pages 120-126