کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7824551 | 1502920 | 2018 | 16 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Core/shell structure of electrospun polycarbonate nanofibers
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
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چکیده انگلیسی
Internal structure is the key to tailoring the performance of electrospun (ES) nanofibers. However, it still remains very challenging to characterize the structures inside ES fibers. In this study, ES polycarbonate (PC) nanofibers were successfully cut open along and across the fiber axis by embedding. The characterization results revealed that these sections exhibited a heterogeneous core layer structure was formed due to the phase separation. A clear core/shell-like structure consequently formed, which is caused by the different evaporation behavior. The thickness of the shell layer slightly decreased with decreased fiber diameter, while the core layer showed a dramatical linear decrease. The dominant part was switched from the heterogeneous core layer to shell layer with high molecular orientation, which enables the production of nanofibers with superior properties.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer Testing - Volume 70, September 2018, Pages 498-502
Journal: Polymer Testing - Volume 70, September 2018, Pages 498-502
نویسندگان
Xiaofeng Wang, Yiyang Xu, Yongchao Jiang, Jing Jiang, Lih-Sheng Turng, Qian Li,