Effect of gamma irradiation on the mechanical and dielectric properties of XLPE/TiO₂ nanocomposites

Journal of Radioanalytical and Nuclear Chemistry 2026 Book chapter Open access

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Authors: Nurul Afira Syakirah binti Mohd Amin, Norazrina binti Mat Jali, Nor Azwin binti Shukri, Pairu bin Ibrahim, Ku Zarina Ku Ahmad, A’liya binti Abdul Laziz, Mohd Taufiq bin Ishak
DOI: 10.1007/s10967-025-10614-0
Cited by: 1
References: 26

Abstract

Polyethylene (PE) is widely used in power cables, but its performance limits its use in high-voltage applications. This study investigates the effect of gamma irradiation (20–100 kGy) on low-density polyethylene (LDPE) nanocomposites containing titanium dioxide (TiO₂) at 0, 0.5, and 2 phr and ethylene–vinyl acetate (EVA) at 0, 1, and 5 phr. Based on the results, X5 (LDPE/TiO₂-0.5) achieved the highest crosslinking efficiency at 100 kGy, while X16 (LDPE/TiO₂-2/EVA-5) exhibited superior tensile strength at 80–100 kGy. Dielectric permittivity decreased with increasing irradiation dose, particularly at 100 kGy, and breakdown strength peaked at 60–80 kGy. These findings provide insight into optimizing irradiation conditions for XLPE-based high-voltage insulation materials.

Fields of Study & Subjects

High voltage insulation and dielectric phenomena Polymer Nanocomposite Synthesis and Irradiation Dielectric materials and actuators

Publication details

Journal / source
Journal of Radioanalytical and Nuclear Chemistry
Publisher
Springer Science and Business Media LLC
Volume
335
Issue
2
Pages
1731–1742
Publication date
20 January 2026
Language
EN
Document type
Book chapter