Processing and characterization of oriented electrospun poly(vinylidene fluoride) mats

被引：13

作者：

Gasparini, Thiago Manha ^{[1
]}

Suman Bretas, Rosario Elida ^{[1
]}

da Silva, Aline Bruna ^{[1
]}

Gregorio, Rinaldo, Jr. ^{[1
]}

机构：

[1] Univ Fed Sao Carlos, Dept Mat Engn, BR-13565905 Sao Paulo, Brazil

来源：

JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS | 2012年 / 50卷 / 18期

基金：

巴西圣保罗研究基金会;

关键词：

electrospinning; ferroelectricity; fibers; FTIR; hysteresis loop; orientation; oriented nanofibers; polymorphism; polyvinylidene fluoride; PVDF; sensors; PVDF MEMBRANES; MOLECULAR-ORIENTATION; CRYSTALLINE PHASE; MORPHOLOGY; DEPOSITION; NANOFIBER; FIBERS; TEMPERATURE;

D O I：

10.1002/polb.23123

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Mats of highly oriented poly(vinylidene fluoride) nanofibers were electrospun by means of a conventional electrospinning equipment; the orientation, however, was obtained using a disk collector rotating at a speed of 4000 rpm and a device that reduced the influence of air displacement during nanofiber orientation. Thermal transitions of the mats were determined by differential scanning calorimetry, the predominant crystalline phase by Fourier transform infrared spectroscopy and wide-angle X-ray scattering and the nanofiber orientation and morphology by scanning electron microscopy. Relative permittivity, loss index, stable remnant polarization, and coercive field of the mats were also determined and compared with those obtained for a mat electrospun at 2000 rpm and an oriented commercial film. (c) 2012 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 000: 000000, 2012

引用

页码：1304 / 1311

页数：8

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