Quantifying time-dependent structural and mechanical properties of UV-aged LDPE power cables insulations

Authors

ABDALLAH HEDIR
FERHAT SLIMANI
MUSTAPHA MOUDOUD
OMAR LAMROUS
TAHAR TOUAM
MADJID TEGUAR
ABDERRAHMANE HADDAD
ALİ DURMUŞ

DOI

10.55730/1300-0527.3407

Abstract

This paper reports effects of ultraviolet (UV) light radiation on the physicochemical, electrical and mechanical properties of low-density polyethylene (LDPE) cable insulating materials. Changes in structural and morphological properties of UV-aged samples were characterized by various analytical methods such as attenuated total reflection Fourier transform infrared spectroscopy (ATRFTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM) and atomic force microscopy (AFM). Additionally, elongation at break, tensile strength, dielectric strength, and optical properties were also evaluated. Changes in some physical properties of LDPE after exposing to UV irradiation clearly highlighted that the polymer underwent the structural degradation. In addition, it was also found that such degradation yielded both crosslinking and chain scission as two competing processes during UV aging.

Keywords

UV radiations, LDPE, degradation, crosslinking, scission, aging

First Page

956

Last Page

967

Recommended Citation

HEDIR, ABDALLAH; SLIMANI, FERHAT; MOUDOUD, MUSTAPHA; LAMROUS, OMAR; TOUAM, TAHAR; TEGUAR, MADJID; HADDAD, ABDERRAHMANE; and DURMUŞ, ALİ (2022) "Quantifying time-dependent structural and mechanical properties of UV-aged LDPE power cables insulations," Turkish Journal of Chemistry: Vol. 46: No. 4, Article 3. https://doi.org/10.55730/1300-0527.3407
Available at: https://journals.tubitak.gov.tr/chem/vol46/iss4/3