Romanian Journal of Information Science and Technology (ROMJIST)

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ROMJIST is a publication of Romanian Academy,
Section for Information Science and Technology

Editor – in – Chief:
Radu-Emil Precup

Honorary Co-Editors-in-Chief:
Horia-Nicolai Teodorescu
Gheorghe Stefan

Secretariate (office):
Adriana Apostol
Adress for correspondence: romjist@nano-link.net (after 1st of January, 2019)

Editing of the printed version: Mihaela Marian (Publishing House of the Romanian Academy, Bucharest)

Technical editor
of the on-line version:
Lucian Milea (University POLITEHNICA of Bucharest)

Sponsors:
• National Institute for R & D
in Microtechnologies
(IMT Bucharest), www.imt.ro
• Association for Generic
and Industrial Technologies (ASTEGI), www.astegi.ro

ROMJIST Volume 25, No. 3-4, 2022, pp. 322-337, Paper no. 725/2022
 

Lakhdar MADANI, Kamel Salim BELKHIR, Abdelkrim ZEBAR, Saad BELKHIAT
UV Effect on the Dielectric Properties of Al2O3/TiO2 Doped PVC

ABSTRACT: Poly-vinylchlorid (PVC) is a material strongly used as cable insulation sheaths. Its dielectric properties are susceptible to be deteriorated under the Ultraviolet (UV) radiation effect. In this paper, films of PVC have been doping with alumina and titanium dioxide. The influence of Al2O3 and TiO2, on the dielectric properties of PVC before and after being exposed to 300 h of UV irradiation were studied. FTIR spectroscopy and scanning electron microscopy were used as characterization techniques. Dielectric characteristics were measured using an impedance analyzer. Volume resistivity and average breakdown voltage have been analyzed. Experimental results showed well that Al2O3/TiO2 as nano-fillers improved the dielectric properties of PVC and reduced ageing due to UV irradiation. Volume resistivity decreased and breakdown voltage increased with ceramic content.

KEYWORDS: Al2O3/TiO2 doped PVC; breakdown voltage; UV ageing; volume resistivity

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