Influence of molecular weight on dielectric properties and piezoelectric constant of poly(vinylidene fluoride) membranes obtained by electrospinning

IF 1.1 4区工程技术 Q4 POLYMER SCIENCE

Polimery Pub Date : 2021-11-24 DOI:10.14314/polimery.2021.10.4

Aminatul Sobirah Zahari, M. H. Mazwir, I. I. Misnon

引用次数: 1

Abstract

A significant influence of the molecular weight on the dielectric properties and piezoelectric constant of poly(vinylidene fluoride) (PVDF) membranes obtained by electrospinning was demonstrated. Electrochemical impedance spectroscopy and d33 meter were used to evaluate dielectric properties and piezoelectric constant respectively. The presence of the β-phase was determined by Fourier transform infrared spectroscopy (FTIR) and X-Ray diffraction (XRD). The membranes with the lowest molecular weight (180,000 g/mol) possessed the best dielectric properties. They also had the highest piezoelectric constant (21 pC/N) and dielectric constant (2.9 at 50 Hz) as well as the highest β-phase content (80.25%).

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分子量对静电纺丝聚偏氟乙烯膜介电性能和压电常数的影响

分子量对静电纺丝聚偏氟乙烯（PVDF）膜的介电性能和压电常数有显著影响。分别用电化学阻抗谱和d33测量仪对介电性能和压电常数进行了评价。通过傅立叶变换红外光谱（FTIR）和X射线衍射（XRD）测定了β相的存在。分子量最低（180000g/mol）的膜具有最佳的介电性能。它们还具有最高的压电常数（21pC/N）和介电常数（在50Hz时为2.9）以及最高的β相含量（80.25%）。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Polimery Materials Science-Polymers and Plastics

CiteScore

2.90

自引率

6.20%

发文量

审稿时长

1 months

期刊介绍： The "Polimery" journal, of international circulation, is publishing peerreviewed scientific and technical research papers covering polymer science and technology in the field of polymers, rubbers, chemical fibres and paints. The range of topics covered are raw materials, polymer synthesis, processing and applications of polymers. Apart from scientific and technical research papers the monthly includes technical and commercial information such as reports from fairs and exhibitions as well as home, world and technical news. “Polimery "- an international journal covering the following topics: polymers, rubber, chemical fibres and paints. The Journal is addressed to scientists, managers and engineering staff of universities, Polish Academy of Sciences, R&D institutions, industry, specializing in polymer chemistry, physical chemistry, technology and processing. “Polimery” publishes original, reviewed research, scientific and technology papers in the field of polymer synthesis, analysis, technology and modification, processing, properties, applications and recycling.