Effect of graphite dopant polyvinylidene fluoride (PVDF) electrospun composites

Mohd Saad, Muhammad Zamzuri and Syed Bakar, Sharifah Shahnaz and Yahud, Shuhaida and Idris, Muhammad Asri and Samat, Noorasikin (2024) Effect of graphite dopant polyvinylidene fluoride (PVDF) electrospun composites. International Journal of Nanoelectronics and Materials, 17. pp. 347-353. ISSN 1985-5761 E-ISSN 2232-1535

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Abstract

Polyvinylidene Fluoride (PVDF) is a high purity thermoplastic fluoropolymer that has huge potential, has been employed in numerous electronics, space, and aeronautics industries.The beta-phase of PVDF is the most beneficial due to its superior piezoelectric and pyroelectric properties, which are essential for high-performance applications.Thus, the research on attaining the beta-phase has been critical. PVDF crystallinity could be enhanced by varying processing methods and parameters, including electrospinning. Various researchers have reported on the electrospinning PVDF as a successful route to get beta-phase. The morphology, crystalline phases, and electrical conductivity of PVDF fiber are significantly influenced by electrospinning parameters. In this work, the effect of graphite loading in PVDF is one of the parameters examined. The objective of this work is to investigate the impact of graphite dopantloading on the electrical conductivity of electrospun PVDF composite. The most straightforward and affordable way to create PVDF fibers isbyelectrospinning. PVDF was first dissolved using N, N-Dimethylformamide (DMF) before mixing with graphite (0.25wt%, 0.50wt%, 0.75wt%, and 1.0wt%). Each solution was then electrospinned to produceconductivecomposite fiber. The parameters werefixed at 25 kV voltage; 1.5ml/h flow rate; and 12cm tip-to-collector distance. The morphology, electrical conductivity, and crystalline phases of electrospun PVDF fibers were examined using scanning electron microscope (SEM), four-point probe and X-ray diffraction (XRD) machine. As the graphite concentration rises, SEM micrograph showed that more beads weredeveloped along with fiber sizes increment. Short electrospinning times result in insufficient electrospun mat thickness, which affects peak shift, according to XRD examination of all fibers. According to the results of the four-point probe examination, the conductivity rises dramatically and the resistance decreases as the graphite concentration increases

Item Type:	Article (Journal)
Uncontrolled Keywords:	Electrospinning, Polyvinylidene Fluoride, Graphite, Conductive Composite Fibers
Subjects:	T Technology > T Technology (General) T Technology > TP Chemical technology > TP1080 Polymers, plastics and their manufacture
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering Kulliyyah of Engineering > Department of Manufacturing and Materials Engineering
Depositing User:	Dr Noorasikin Samat
Date Deposited:	15 Jan 2025 12:47
Last Modified:	15 Jan 2025 13:59
URI:	http://irep.iium.edu.my/id/eprint/118044

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