Dielectric Behavior and Transport Properties of Electrospun Polyvinylidene Fluoride Nanofiber Membrane

IF 4.9 Q2 NANOSCIENCE & NANOTECHNOLOGY

Nanotechnology, Science and Applications Pub Date : 2021-12-30 DOI:10.33425/2639-9466.1027

Sharvare Palwai, A. Batra, K. Arun, Ashok Vaseashta

{"title":"Dielectric Behavior and Transport Properties of Electrospun Polyvinylidene Fluoride Nanofiber Membrane","authors":"Sharvare Palwai, A. Batra, K. Arun, Ashok Vaseashta","doi":"10.33425/2639-9466.1027","DOIUrl":null,"url":null,"abstract":"Poly (vinylidene fluoride) (PVDF) is a chemical resistance polymer with high ferroelectric, piezoelectric and pyroelectric properties. PVDF has been chosen due to its unique properties compared with others in the polymers family and is used in a variety of sensors and transducers. A PVDF nanofiber membrane with relatively uniform morphology was prepared by an electrospinning technique. The surface morphology of the electrospun PVDF nanofibers was observed by scanning electron microscopy (SEM). The microstructure of electrospun PVDF nanofibers was characterized by Fourier Transform Infrared spectroscopy (FTIR) in the range 400 to 4000 cm-1. The functional groups were identified in the membrane. Infrared vibrational spectroscopy (FTIR + Raman) curves revealed a ferroelectric β-phase in the un-annealed membrane intrinsically. It showed that the electrospinning technique induce crystalline and polar β-phase by applying an electric field to the PVDF polymer solution during high solution jet stretching. The membrane (7 mm x5 mm) with full-face copper electrodes was produced to form a capacitor for testing.","PeriodicalId":18881,"journal":{"name":"Nanotechnology, Science and Applications","volume":null,"pages":null},"PeriodicalIF":4.9000,"publicationDate":"2021-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nanotechnology, Science and Applications","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.33425/2639-9466.1027","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"NANOSCIENCE & NANOTECHNOLOGY","Score":null,"Total":0}

引用次数: 0

Abstract

Poly (vinylidene fluoride) (PVDF) is a chemical resistance polymer with high ferroelectric, piezoelectric and pyroelectric properties. PVDF has been chosen due to its unique properties compared with others in the polymers family and is used in a variety of sensors and transducers. A PVDF nanofiber membrane with relatively uniform morphology was prepared by an electrospinning technique. The surface morphology of the electrospun PVDF nanofibers was observed by scanning electron microscopy (SEM). The microstructure of electrospun PVDF nanofibers was characterized by Fourier Transform Infrared spectroscopy (FTIR) in the range 400 to 4000 cm-1. The functional groups were identified in the membrane. Infrared vibrational spectroscopy (FTIR + Raman) curves revealed a ferroelectric β-phase in the un-annealed membrane intrinsically. It showed that the electrospinning technique induce crystalline and polar β-phase by applying an electric field to the PVDF polymer solution during high solution jet stretching. The membrane (7 mm x5 mm) with full-face copper electrodes was produced to form a capacitor for testing.

查看原文本刊更多论文

静电纺聚偏氟乙烯纳米纤维膜的介电行为和输运性能

聚偏氟乙烯(PVDF)是一种具有高铁电性、压电性和热释电性的耐化学性聚合物。PVDF之所以被选择，是因为它与聚合物家族中的其他聚合物相比具有独特的性能，并用于各种传感器和换能器。采用静电纺丝技术制备了形貌相对均匀的聚偏氟乙烯纳米纤维膜。用扫描电镜观察了静电纺PVDF纳米纤维的表面形貌。利用傅里叶变换红外光谱(FTIR)对静电纺PVDF纳米纤维在400 ~ 4000 cm-1范围内的微观结构进行了表征。在膜上鉴定了功能基团。红外振动光谱(FTIR + Raman)曲线揭示了未退火膜本质上存在铁电β相。结果表明，静电纺丝技术通过在高射流拉伸过程中施加电场诱导PVDF聚合物溶液产生结晶相和极性β相。该膜(7mm x5mm)与全面铜电极被制作成一个电容器用于测试。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Nanotechnology, Science and Applications NANOSCIENCE & NANOTECHNOLOGY-

CiteScore

11.70

自引率

0.00%

发文量

审稿时长

16 weeks

期刊介绍： Nanotechnology, Science and Applications is an international, peer-reviewed, Open Access journal that focuses on the science of nanotechnology in a wide range of industrial and academic applications. The journal is characterized by the rapid reporting of reviews, original research, and application studies across all sectors, including engineering, optics, bio-medicine, cosmetics, textiles, resource sustainability and science. Applied research into nano-materials, particles, nano-structures and fabrication, diagnostics and analytics, drug delivery and toxicology constitute the primary direction of the journal.