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Applied Science and Technology Express
ASTE 2022, 7 pages - Article ID: ASTE-2202242112436
Effect of viscosity and dielectric properties on the polymer fiber composite
Authors
Surajudeen Sikiru a,
Hassan Soleimani a,
Yarima Mudassir Hassan a,
Sanusi Yekinni Kolawole b
aDepartment of Fundamental and Applied Science Universiti Teknologi PETRONAS Seri Iskandar Perak 32610, Malaysia
bDepartment of pure and applied Physcis Ladoke Akintola University of Technology PMB 4000 Ogbomoso
ABSTRACT
Polymer-fiber-based composites were classified as "high" (real permittivity), "magnetic," and "superconducting," with "high" composites supporting the all-dielectric approach to wave manipulation.The goal of this research is to develop a processable dielectric material with a relatively large real part of the relative permittivity (ε?). The magnetic and dielectric performance, as well as the thermal properties, of polymer fibre composites based on polyvinylidene fluoride (PVDF) can be improved by the addition of various materials, such as graphene, which has excellent electrical and dielectric properties. The magnetic and dielectric properties of such a composite material are affected by shape, filler concentration, and size. The PVDF polymer fibres were created using solvent-induced phase separation and electrospinning. 1g of graphene was mixed with 30g of ethanol and added to 199ml of PVDF polymer dope solution. The effectiveness of graphene as a dielectric material was investigated using the X-band 8.2–12.4 GHz regions of the key sight ENA series Network Analyzer E5071C on polymer fibre composite materials. According to the results, the graphene fibre has a higher real permittivity of 6.08F/M than the conversional polymer fibre composite, which has a permittivity of 2.0F/M. The addition of graphene successfully polarised the polymer fibre composite based on the results obtained; this is due to graphene’s dielectric field dependence. Graphene, on the other hand, is a material with a distinct behaviour due to its electronic structure and linear dispersion near the fermi level. Also, graphene is a superconducting – insulating transition material that can be driven by electric fields; it was discovered that increasing the viscosity of the PVDF dope solution resulted in brittleness of the polymer-fiber, which has a negative effect on the mechanical properties of the fibre.