Frequency dependence of electrical properties of polyvinylidene fluoride/graphite electrode waste/natural carbon black composite

• Published in: Journal of physics. Conference series Vol. 985; no. 1; pp. 12051 - 12056
• Main Authors: Insiyanda, D R, Indayaningsih, N, Prihandoko, B, Subhan, A, Khaerudini, D S, Widodo, H, Destyorini, F, Chaer, A
• Format: Journal Article
• Language: English
• Published: Bristol IOP Publishing 01.03.2018
• Subjects: Carbon black; Electrical properties; Electrical resistivity; Fillers; Fluorides; Frequency ranges; Graphite; Physics; Piezoelectricity; Polyvinylidene fluorides
• ISSN: 1742-6588; 1742-6596
• DOI: 10.1088/1742-6596/985/1/012051

Polyvinylidene fluoride (PVdF) is a semi-crystalline thermoplastic material with remarkably high piezoelectric coefficient and an attractive polymer matrix for micro-composite with superior mechanical and electrical properties. The conductive filler is obtained from Graphite Electrode Waste (GEW) and Natural Carbon Black (NCB). The variation of composite content (%) of PVdF/NCB/GEW were 100/0/0, 95/5/0, 95/0/5, 95/2.5/2.5. This experiment employed dry dispersion method for material mixing. The materials were then moulded using hot press machine with compression parameters of P = 5.5 MPa, T = 150 °C, t = 60 minutes, A = 5×5×(0.2 - 0.4) cm3. The electrical conductivity properties of pure PVdF, as well as PVdF/GEW, PVdF/NCB, and PVdF/NCB/GEW composites were investigated in a frequency range of 100 to 100000 Hz. The PVdF/GEW sample obtained the highest electrical conductivity. It is concluded that GEW and NCB can be incorporated into PVdF as a conductive filler to increase the conductivity of conductive material composite without solvent.