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Effects of SiO2 and TiO2 nanofillers on conductivity level of LLDPE-NR nanocomposite HV insulator

Mohd Jamail , Nor Akmal and Mohamed Piah , Mohamed Afendi and Muhamad , Nor Asiah and Zainir , Rubiatul Addawiyah and Kasri , Nur Faizal (2013) Effects of SiO2 and TiO2 nanofillers on conductivity level of LLDPE-NR nanocomposite HV insulator. Applied Mechanics and Materials , 284. pp. 305-309. ISSN 2180-3722


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Polymeric nanocomposites have gained importance in the material properties to provide enhanced performances such as electrical and mechanical properties. One of the targets in this field is to obtain new materials with improved dielectric properties for High Voltage (HV) insulation application. In general, the good insulator must have low conductivity level. This paper presents the outcome of an experimental study to find the conductivity level of LLDPE-Natural Rubber (NR) compound filled with different amount of nanoparticles of SiO2 and TiO2 by using Polarization and Depolarization Current (PDC) measurement technique. PDC measurement is an efficient and effective insulator diagnostic technique based on time domain measurement to monitor the dielectric behaviour. The experiment was conducted to find PDC pattern and conductivity variations of each new sample. The results show that the addition of SiO2 filler exhibited in less conductivity compared to TiO2 filler with certain percentage. LLDPE-NR/ SiO2 can be a good insulator compared with LLDPE-NR/ TiO2.

Item Type: Article
Uncontrolled Keywords: LLDPE; natural rubber; nanocomposite; polarization current; depolarization current; conductivity
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA401-492 Materials of engineering and construction. Mechanics of materials
Divisions: Faculty of Electrical and Electronic Engineering > Department of Electrical Power Engineering
Depositing User: Normajihan Abd. Rahman
Date Deposited: 15 Mar 2015 04:38
Last Modified: 15 Mar 2015 04:38
URI: http://eprints.uthm.edu.my/id/eprint/4310
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