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All Journal Journal of Material Science and Radiation
Mohd Sofian Alias
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)
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)
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
Synthesis of Carbon Nanomaterials from Polyethylene Terephthalate (PET) Waste Using Chemical Vapor Deposition Nor Adnin Ezani Mohd Ezani; Mohd Hamzah Harun; Izzuddin Mohd Zaharuddin; Norfazlinayati Othman; Mahathir Mohamed; Mohd Sofian Alias; Mohd Faizal Abd Rahman; Khairil Nor Kamal Umar; Nurul Huda Mudri; Khairul Azhar Abdul Halim; Farah Fadzehah Hilmi; Rida Tajau
Journal of Material Science and Radiation Vol. 1 No. 3 (2025)
Publisher : Balai Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56566/jmsr.v1i3.482

Abstract

Upcycling is an effective approach to reduce plastic waste, polyethylene terephthalate (PET) and promote sustainability. Plastic bottles usually were made from PET polymer and a raw material to produce carbon nanomaterials (CNMs). CNMs are synthesized using chemical vapor deposition (CVD) process and purified to eliminate catalysts and unwanted compounds. Various catalysts were used to investigate the economic and effective in producing the CNMs. Metal catalysts such as ferrocene, cobalt and iron are the important elements in the CVD process as they provide surfaces for carbon to attach. CNMs morphology and graphitic structure were observed from Raman analysis and TEM analysis. The application of upcycling offers the advantage of utilizing low-cost raw materials to produce higher-value products, providing additional benefits.
Superhydrophobic Surface from Sol Gel Synthesis of Thin Sol Gel Fluorinated Silica Coating Norfazlinayati Othman; Mohd Hamzah Harun; Izzuddin Mohamad Zaharuddin; Nor Adnin Ezani Mohd Ezani; Mahathir Mohamed; Mohd Sofian Alias
Journal of Material Science and Radiation Vol. 2 No. 1 (2026)
Publisher : Balai Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56566/jmsr.v2i1.495

Abstract

A thin fluorinated silica coating was synthesized via a sol–gel route using silica nanoparticles as surface roughness agents functionalized with long-chain fluoroalkylsilane. The coatings were characterized for surface wettability, optical transmittance, infrared spectra, and morphology. All samples exhibited excellent optical transparency as verified by UV–visible spectroscopy. The fluorinated silica coating demonstrated markedly enhanced water repellency compared to TEOS and TEOS–FAS systems, confirming the critical role of fluorinated silica in improving hydrophobicity. These findings indicate its strong potential for application as a transparent hydrophobic coating in optoelectronic devices, lenses, and window materials
Eco-Friendly Radiation Curable Acrylate Coatings Reinforced with Functionalized Carbon Nanotubes for Antimicrobial Application Nur Zetty Amirah Kadri; Mohd Hamzah Harun; Izzuddin Mohd Zaharuddin; Nor Adnin Ezani Mohd Ezani; Norfazlinayati Othman; Mahathir Mohamed; Mohd Sofian Alias; Mohd Faizal Abd Rahman; Khairil Nor Kamal Umar; Nurul Huda Mudri
Journal of Material Science and Radiation Vol. 2 No. 2 (2026): August
Publisher : Balai Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56566/jmsr.v2i2.724

Abstract

This study presents the development of high-performance radiation curable acrylate coatings reinforced with functionalized carbon nanotubes (F-CNTs) synthesized from waste plastic bottles by chemical vapor deposition method for antimicrobial applications. Epoxy and polyurethane acrylate resins (Ebecryl 600 and Ebecryl 210) were formulated with varying F-CNT loadings (0.05–0.70 wt%) and subjected to different ultraviolet (UV) curing exposure by varying UV exposure. Fourier Transform Infrared (FTIR) analysis confirmed successful photopolymerization through the reduction of acrylate functional groups and formation of a crosslinked network. Thermogravimetric analysis (TGA) demonstrated enhanced thermal stability and increased char residue at higher F-CNT concentrations (0.70 wt%), attributed to the barrier effect of nanotubes with the expense of crosslinking density due to the shading effect of F-CNTs. Antimicrobial study using E. coli revealed a significant reduction in bacterial viability, achieving near-complete inhibition within 24 h of exposure. The results highlight that optimal F-CNT dispersion is critical, as potential excessive loading can hinder curing efficiency due to agglomeration. Overall, this work demonstrates a sustainable and effective strategy for developing multifunctional coatings with enhanced durability and antimicrobial performance for healthcare and industrial applications
Co-Authors Farah Fadzehah Hilmi Izzuddin Mohamad Zaharuddin Izzuddin Mohd Zaharuddin Khairil Nor Kamal Umar Khairul Aiman Khairi Khairul Azhar Abdul Halim Mahathir Mohamed Mahathir Mohamed Mohd Faizal Abd Rahman Mohd Hamzah Harun Nor Adnin Ezani Mohd Ezani Nor Batrisya Ismail Norfazlinayati Othman Norfazlinayati Othman Nur Zetty Amirah Kadri Nurul Huda Mudri Rida Tajau Rusdyana Natasa Ghazali Siti Nur Eyisha Wafa Mohd Aminuddin