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AuthorMohanapriya, M.K.
AuthorDeshmukh, K.
AuthorSadasivuni, Kishor Kumar
AuthorThangamani, G.
AuthorChidambaram, K.
AuthorBasheer, Ahamed M.
AuthorKhadheer, Pasha S.K.
Available date2022-03-23T06:54:39Z
Publication Date2019
Publication NameMaterials Today: Proceedings
ResourceScopus
Identifierhttp://dx.doi.org/10.1016/j.matpr.2019.02.153
URIhttp://hdl.handle.net/10576/28688
AbstractThe present article deals with the preparation of polyvinyl formal based nanocomposites filled with zinc oxide (ZnO) and carbon black nanoparticles using colloidal blending technique. To explore the electrical and structural properties, PVF/ZnO/CBNP nanocomposite films were characterized using Fourier transform infrared (FTIR) spectroscopy, X- Ray diffraction (XRD) and Scanning electron microscopy (SEM). The surface morphology of these nanocomposite films was evaluated using polarized optical microscopy (POM). The structural change in PVF nanocomposite was achieved by incorporating ZnO and CBNP, by homogeneous distribution in polymer nanocomposite. The electrical properties such as impedance and quality factor (Q – factor) of PVF/ZnO/CBNP composite films were elucidated using impedance analyzer in the wide range of frequency from 50 Hz – 20 MHz and temperature in the range 50°C – 150°C. Quality factor was measured as a function of temperature (50 – 150°C) and wide range of frequency from 50 Hz - 20 MHz. The PVF/ZnO/CBNP nanocomposite exhibits high Q-factor (439) for neat PVF films. The incorporation of ZnO at 10% decreases Q-factor to 36.1. Incorporation of CBNP at 5% and ZnO at 5% further reduces the Q-factor to 13.7. With further increase in CBNP content, the Q – factor was found to decrease7.38. Impedance values of PVA/ZnO/CBNP nanocomposites varied at different filler loading in PVF at 3% of CBNP (3.54 X 107Ω) to 10% of CB (1.48 X 107Ω). Increase in the CBNP wt% in PVF shows enhanced conductivity. Thus, based on the above results the PVF/ZnO/CBNP nanocomposites can be used for high – k capacitor applications and also for wireless sensing applications.
SponsorThe authors wish to thank the management of VIT University for providing the facilities for XRD, SEM, and AFM analysis through VIT-DST-FIST scheme. One of the authors M.K. Mohanapriya expresses sincere thanks to the management of Voorhees College, Vellore for their support.
Languageen
PublisherElsevier Ltd
SubjectCarbon black nanoparticle
Impedance
Polyvinyl Formal
Q- factor
Wireless sensors
ZnO
TitleEnhanced quality factor of polyvinyl formal (PVF) based nanocomposites filled with zinc oxide and carbon black nanoparticles for wireless sensing applications
TypeConference Paper
Pagination199-216
Volume Number9
dc.accessType Abstract Only


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