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All Journal Journal of Material Science and Radiation
Nor Batrisya Ismail
Malaysian Nuclear Agency, Bangi
Materials Science & Nanotechnology Physics

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Effect of Functional Carbon Nanotube Fillers on the Physical and Thermal Characterization of Radiation Curable Coating Khairul Aiman Khairi; Mohd Hamzah Harun; Norfazlinayati Othman; Mahathir Mohamed; Mohd Sofian Alias; Mohd Faizal Abd Rahman; Khairil Nor Kamal Umar; Rida Tajau; Nor Batrisya Ismail; Izzuddin Mohamad Zaharuddin; Siti Nur Eyisha Wafa Mohd Aminuddin
Journal of Material Science and Radiation Vol. 1 No. 2 (2025): August
Publisher : Balai Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56566/jmsr.v1i2.373

Abstract

This work investigates the formulation of a radiation-curable coating that integrates functionalized carbon nanotubes (f-CNT) to improve surface characteristics. Trimethylolpropane triacrylate (TMPTA) was employed as the monomer, with epoxy acrylate and urethane acrylate as oligomers and Irgacure-500 as the photoinitiator. To cure the coatings, the formulations were subjected to ultraviolet (UV) light, and the surface properties were investigated using Fourier-transform infrared spectroscopy (FTIR), pendulum hardness testing, and thermogravimetric analysis (TGA). The results show that altering the ratios of f-CNT in the formulations have a considerable impact on the mechanical and thermal characteristics of the coating. The findings show that ideal compositions of these additives improve the hardness, crosslinking density, and thermal stability of the cured films, offering insight into their potential
Chemical, Structural and Thermal Analysis of PET Flakes induced by Electron Beam Irradiation Nor Batrisya Ismail; Mohd Hamzah Harun; Izzuddin Mohamad Zaharuddin; Norfazlinayati Othman; Mahathir Mohamed; Mohd Sofian Alias; Mohd Faizal Abd Rahman; Khairil Nor Kamal Umar; Nurul Huda Mudri; Khairul Azhar Abdul Halim; Rida Tajau; Rusdyana Natasa Ghazali; Siti Nur Eyisha Wafa Mohd Aminuddin
Journal of Material Science and Radiation Vol. 1 No. 2 (2025): August
Publisher : Balai Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56566/jmsr.v1i2.393

Abstract

This study presents a comprehensive chemical, structural, and thermal characterization of polyethylene terephthalate (PET) flakes subjected to electron beam irradiation at doses of 0, 40, and 120 kGy. Post-consumer PET bottle flakes were analyzed using Fourier Transform Infrared Spectroscopy (FTIR), X-ray Diffraction (XRD), and Thermogravimetric Analysis (TGA) to determine irradiation-induced modifications. FTIR results reveal noticeable variations in key functional groups, particularly in the ester (C=O and C–O) and aromatic regions, indicating chain scission, partial cross-linking, and oxidation with increasing radiation doses. XRD analysis shows a progressive reduction in peak intensity and an increase in peak broadening, signifying decreased crystallinity and enhanced amorphous character due to structural disorder. TGA measurements demonstrate improved thermal stability of irradiated PET, with major degradation shifting from ~450 °C in the non-irradiated sample to ~480 °C after irradiation, and a clearer two-stage degradation pattern associated with structural rearrangements. These findings confirm that electron beam irradiation induces significant yet controlled modifications on PET’s molecular structure, crystallinity, and thermal behavior. Such property alterations highlight the potential of electron beam treatment as an effective pre-processing approach to enhance the recyclability and performance of waste PET, contributing to more sustainable plastic waste management strategies
Co-Authors Izzuddin Mohamad Zaharuddin Khairil Nor Kamal Umar Khairul Aiman Khairi Khairul Azhar Abdul Halim Mahathir Mohamed Mohd Faizal Abd Rahman Mohd Hamzah Harun Mohd Sofian Alias Norfazlinayati Othman Nurul Huda Mudri Rida Tajau Rusdyana Natasa Ghazali Siti Nur Eyisha Wafa Mohd Aminuddin