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Effect of carbon nanotube loading on electrical properties of electrospun polyvinylidene fluoride (PVDF) fiber

Jia, Wei Lee and Syed Bakar, Sharifah Shahnaz and Ahmad Zaidi, Nur Hidayah and Yahud, Shuhaida and Samat, Noorasikin (2021) Effect of carbon nanotube loading on electrical properties of electrospun polyvinylidene fluoride (PVDF) fiber. In: 1st International Conference on Green Materials, Processing and Characterization 2021 (ICOGMPAC 2021), 12 October 2021, Perlis, Malaysia (Virtual).

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Polyvinylidene fluoride (PVDF) is a high purity thermoplastic fluropolymer that use in the aircraft, electronics, and chemical industry. Carbon nanotube (CNTs) is made up of rolled up of graphite sheets, exhibits excellent chemical, thermal, mechanical properties, and large surface areas. PVDF fibers blended with CNTs were able to enhance the β-phase which contributes to piezoelectric properties. Electrospinning is the simplest and low-cost method to produce PVDF/CNT fibers by dissolving PVDF in solvent N, N-Dimethylformamide (DMF). 15wt% PVDF solution was used. CNT loading were varied at 0.0wt%, 0.35wt%, 0.80wt% and 1.00wt% with parameters of 20kV, tip-to-collector distance (TCD) 15cm and flow rate 1.0mLh-1. Scanning Electron Microscope (SEM), four-point probe and X-ray Diffraction (XRD) were used to determine the morphology and crystallinity of electrospun PVDF/CNT fibers. The SEM analysis concluded all fibers showed beaded structure due to low concentration of PVDF solution with insufficient ultrasonification and stirring, cause electrospraying and agglomeration. XRD and four-point probe analysis concluded PVDF/0.35wt%CNT showed the highest β-phase content with intense XRD peak and highest electrical conductivity. However, shift peak is observed among all fibres due to short electrospinning time leads to insufficient thickness of electrospun mat, which affects the mechanical properties of fibres and causes peak shift.

Item Type: Conference or Workshop Item (Plenary Papers)
Subjects: 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 > Department of Manufacturing and Materials Engineering
Depositing User: Dr Noorasikin Samat
Date Deposited: 23 Dec 2021 14:12
Last Modified: 23 Dec 2021 14:12
URI: http://irep.iium.edu.my/id/eprint/95194

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