Study Of Electrical Relaxation Mechanism Of TiO2 Doped Bi-polymer Systems
Moumita Khutia1, Girish M. Joshi1*, Subhratanu Bhattacharya2
1Polymer Nanocomposite Laboratory, Material Physics Division, School of Advanced Sciences, VIT University, Vellore 632014, Tamil Nadu, India
2Department of Physics, University of Kalyani, Nadia 741235, West Bengal, India
Adv. Mater. Lett., 2016, 7 (3), pp 201-208
DOI: 10.5185/amlett.2016.6181
Publication Date (Web): Feb 01, 2016
Copyright © 2019 VBRI Press
E-mail: varadgm@gmail.com
Polyvinyl alcohol (PVA) /Poly (tetrafluoroethylene) (PTFE)/Titanium oxide (TiO2) was prepared by ( 5, 10 and 15 wt %) TiO2 loading. The miscibility, thermal property and microstructure of the composites were characterized by differential scanning calorimetry (DSC) and scanning electron microscopy (SEM). The electrical relaxation dynamics including dielectric and electrical conductivity was examined as a function broadband of frequency and temperature. The dielectric data was analyzed via the electric modulus. The Maxwell-Wagner-Siller (MWS) effect corresponds to interfacial polarization at low frequency follows Arrhenius behavior. The α-mode relaxation is attributed to glass-rubbery transition in composites, obeys the Vogel- Taman-Fulcher (VTF) model. A slight bump was noted at relatively high temperature and high frequencies termed as Intermediate dipolar effect (IDE) obeys the Arrhenius behavior. Conductive mechanism was analyzed via AC conductivity spectra. However, DC conductivity follows Arrhenius equation. The overall studies confirm that the self relaxation mechanism of PVA/PTFE composites were modified by TiO2, offers the tuning conductivity as a function of the temperature which can be used in various electronic applications.
Cloud Medicine set to Revolutionize Doorstep Personalized Healthcare
Various surfactants for 0 – 3 dimensional nanocarbons: Separation, exfoliation and solubilization
Polypyrrole based biofunctional composite layer for bioelectrocatalytic device system
Innovative Graphene-PDMS sensors for aerospace applications
Effect of hot drawing process and carbonization temperature in electrochemical behavior of electrospun carbon nanofibers
Chemical Reactivity and Electronical Properties of Graphene and Reduced Graphene Oxide on Different Substrates
Laser Raman micro-spectroscopy as an effective non-destructive method of detection and identification of various sp2 carbon modifications in industry and in nature
Electrochemical promotion of ammonia synthesis with proton-conducting solid oxide fuel cells
Biomimetic surfaces with hierarchical structure using microsized texture and nanosized Cu particles for superhydrophobicity
Enhancement the properties of high and low-density polyethylene membranes by radiation grafting process
Synthesis of 9-Aminoacridine and its Application as an Anode Material for Aqueous Rechargeable Lithium–ion Batteries
Facile synthesis of novel tough and highly flexible biodegradable membranes for water microfiltration
Investigating the possibility of using acetic acid in place of HF in chromium-benzenedicarboxylates (MIL-53 and MIL-101) synthesis applicable for CO2 adsorption
Smart Healthcare pulls up Clouds for Virtual Medicine
Selecting the correct electromagnetic inspection technology
Influence of railway-track grinding on the track material condition and tribological behaviour
Micromechanical Fatigue Modelling of the Size Effect in Micro-Scale 316L Stainless Steel Specimens
Functionalization of Graphene and Reduced Graphene Oxide in Different Matrices
Effect of parasitic polytypes on ballistic electron transport in chemical vapor deposition grown 6H-SiC epitaxial layers
Photomemristive heterostructures based on two-dimensional crystals
Architecture - behaviour - properties relationship in Star-shaped MPA-PMMA and MPA-PS hyper-branched copolymers
Graphene and doped graphene: A comparative DFT study
Ag2CO3 / Magnetic reduced graphene oxide nanocomposite as advanced visible light photocatalytic hybrid materials for efficient degradation of azo dye
Optimization of acid hydrolysis process for the preparation cellulose nanofibrils
Alginate/k-carrageenan and alginate/gelatin composite hydrogel beads for controlled drug release of curcumin
Study of microstructure and mechanical properties of friction stir welded ferrite-martensite DP700 steel
Copyright ©2010-2019 VBRI Press
Full Article