Azlin Fazlina Osman
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Preferred name
Azlin Fazlina Osman
Official Name
Azlin Fazlina, Osman
Alternative Name
Osman, Azlin Fazlina
Osman, A.
Fazlina Osman, Azlin
Main Affiliation
Scopus Author ID
54891813000
Researcher ID
K-2714-2019

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  • Publication
    The role of zinc chloride in enhancing mechanical, thermal and electrical performance of ethylene vinyl acetate/carbonized wood fiber conductive composite
    ( 2021-02-02)
    Mohd Hanif Mohd Pisal
    ;
    Azlin Fazlina Osman
    ;
    Tan Soo Jin
    ;
    Rozyanty Rahman
    ;
    Alrashdi A.A.
    ;
    Masa A.
    Carbonized natural filler can offer the production of low cost composites with an eco-friendliness value. The evolving field of electronics encourages the exploration of more functions and potential for carbonized natural filler, such as by modifying its surface chemistry. In this work, we have performed surface modification on carbonized wood fiber (CWF) prior to it being used as filler in the ethylene vinyl acetate (EVA) composite system. Zinc chloride (ZnCl2) with various contents (2 to 8 wt%) was used to surface modify the CWF and the effects of ZnCl2 composition on the surface morphology and chemistry of the CWF filler were investigated. Furthermore, the absorptive, mechanical, thermal, and electrical properties of the EVA composites containing CWF-ZnCl2 were also analyzed. SEM images indicated changes in the morphology of the CWF while FTIR analysis proved the presence of ZnCl2 functional groups in the CWF. EVA composites incorporating the CWF-ZnCl2 showed superior mechanical, thermal and electrical properties compared to the ones containing the CWF. The optimum content of ZnCl2 was found to be 6 wt%. Surface modification raised the electrical conductivity of the EVA/CWF composite through the development of conductive deposits in the porous structure of the CWF as a channel for ionic and electronic transfer between the CWF and EVA matrix.
  • Publication
    Effect of chemical treatment on tensile properties of Oil Palm Empty Fruit Bunch (OPEFB)-based All Cellulose Composite (ACC) films
    (IOP Publishing Ltd, 2020)
    Nur Liyana Izyan Zailuddin
    ;
    Azlin Fazlina Osman
    ;
    Rozyanty Rahman
    This study explored the potential of using oil palm empty fruit bunch (OPEFB) in the production all-cellulose composite (ACC) films. The isolation process of the raw OPEFB fiber was carried out using chemical process to extract the OPEFB nanocellulose. The ACC films from the OPEFB and microcrystalline cellulose (MCC) were prepared using dimethylacetamide (DMAC) and lithium chloride solvent system whereby the partially dissolved cellulose was transformed into the matrix phase surrounding the remaining non-dissolved fiber. The ACC films containing 1, 2, 3 and 4 % (wt/vol) OPEFB cellulose and 3 % (wt/vol) microcrystalline cellulose (MCC) were prepared and the effects of 2-ethylhexyl acrylate chemical treatment of the OPEFB cellulose on tensile properties of the ACC film were investigated. Results indicate that the chemical treatment using 2-ethylhexyl acrylate has reduced the hydroxyl group composition in the cellulose and allowing greater dissolution of the cellulose during the formation of the ACC film. As a result, the tensile strength and modulus of elasticity of the ACC film were significantly enhanced. However, both untreated and treated ACC films experienced the reduction in both properties when the cellulose concentration was increased from 1 % to 4% (wt/vol), due to the saturation of the cellulose particles and non-homogeneity of the ACC system.
      2  4
  • Publication
    Interfacial Bonding Mechanisms of Natural Fibre-Matrix Composites: An Overview
    ( 2022-01-01)
    Mohammed M.
    ;
    Rasidi M.S.M.
    ;
    Mohammed A.M.
    ;
    Rozyanty Rahman
    ;
    Azlin Fazlina Osman
    ;
    Tijjani Adam
    ;
    Betar B.O.
    ;
    Dahham O.S.
    The development of natural fiber (NFr) composites for a variety of applications is on the rise. The optimization of the interfacial bonding (IFB) between the reinforcing NFr and polymer matrix is perhaps the single most critical aspect in the development of natural fibre polymer composites (NFPCs) with high mechanical performance. While the IFB is critical in determining the mechanical properties of the NFPCs, such as stress transfer, it is one of the least understood components. This article offers a summary of IFB mechanisms, different modification approaches targeted at lowering incompatibility and improving IFB, and evaluation of the impact of IFB. It has been found that 1) In general, interdiffusion, electrostatic adhesion, chemical reactions, and mechanical interlocking are accountable for the IFB; 2) the incompatibility of the fibre and matrix, which results in poor dispersion of the fiber, weak IFB, and ultimately worse composite quality, may be addressed through strategic modifications; and 3) Interfacial interactions between polymers and nanoparticles (NPs) are significantly improving their performance in areas like thermal, mechanical, robust IFB, and moisture absorption. As a result, this review study could be an important resource for scholars interested in coating and treating NFr to further enhance their surface characteristics.
      1  12
  • Publication
    Surface treatment to improve water repellence and compatibility of natural fiber with polymer matrix: Recent advancement
    ( 2022-11-01)
    Mohammed M.
    ;
    Rozyanty Rahman
    ;
    Mohammed A.M.
    ;
    Tijjani Adam
    ;
    Betar B.O.
    ;
    Azlin Fazlina Osman
    ;
    Dahham O.S.
    The world is in need of more eco-friendly material, therefore numerous efforts have been made to replace synthetic fibers in fiber-reinforced composites with natural fibers reinforced composite (NFRC), owing to growing environmental consciousness and the depletion of oil supplies. The low cost, low density, abundance, and biodegradability of NFRC, have encouraged several researchers worldwide to study their potential applications in a number of industrial sectors. However, NFRC have several disadvantages, including excessive moisture absorption and subsequent swelling and degradation, low chemical and fire resistance, significant mechanical characteristics dispersion, insufficient interfacial interactions with polymeric or cementitious matrices, etc. Consequently, there is great interest in modifying the surface of NFRC using a variety of methods. This review presents an overview of the NFRC, its characterization, the problems associated with adding NFRC to polymer matrix. The main motive of this article is to review existing research on the surface treatments of NFRC, namely alkali, silane, acetylation, benzoylation, etc., which are all used to reduce moisture absorption and fibers deterioration in order to tackle their obvious disadvantages and effectively employ in a variety of application areas. The effect of these surface treatments on the hydrophilicity, surface chemistry, interface bonding, mechanical characteristics, and thermal performance of NFRC has also been addressed. In addition, we conducted a comprehensive evaluation of the surface treatment of NFRC using nanoparticles (NPs) to increase the hydrophobicity and interfacial bonding between the NFRC and polymer matrix, which might improve the strength and dimensional stability of NFRC. As a result, this review article may make a valuable contribution for researchers interested in coating and treating NFRC to further enhance their surface characteristics.
      4  13
  • Publication
    Improving hydrophobicity and compatibility between kenaf fiber and polymer composite by surface treatment with inorganic nanoparticles
    ( 2022-11-01)
    Mohammed M.
    ;
    Rozyanty Rahman
    ;
    Mohammed A.M.
    ;
    Betar B.O.
    ;
    Azlin Fazlina Osman
    ;
    Tijjani Adam
    ;
    Dahham O.S.
    ;
    Subash Chandra Bose Gopinath
    Compatibility of natural fiber with hydrophobic matrix is a herculean task in literature works. Surface treatment is a well-known approach for increasing the strength of interfacial adhesion between fibres and polymer matrices. Therefore, this study aims to examine the impact of surface treatment with zinc oxide nanoparticles (ZnONPs) in improving hydrophobicity of kenaf fiber (KF) to enhance the compatibility between KF and polymer matrix. In this study, KF reinforced unsaturated polyester composites (KF/UPE) were fabricated by the hand lay-up method with varying fiber loadings (wt %) of 10 20, 30, and 40. KF were treated with five different contents of ZnONPs (1% to 5 wt%) to make UPE/KF-ZnONPs composites. The composites were studied in terms of wetting response (contact angle measure and water absorption), mechanical properties, chemical structure (FTIR), crystalline structure (XRD), and surface morphology (SEM, AFM). The investigational findings indicate that the composite samples incorporating ZnONPs exhibit optimum hydrophobicity and mechanical properties, as they possessed a higher contact angle than the untreated KF composite. The optimum content of ZnONPs was found to be 2 wt%. Regarding water absorption, the untreated UPE/KF composites absorbed more water than the treated UPE/KF-ZnONPs composites. SEM images showed changes in the morphology of the KF, while FTIR analysis proved the presence of ZnONPs functional groups in the UPE/KF composites. AFM images revealed that the ZnONPs could actively produce nanolevel roughness, advantageous to the hydrophobic characteristics.
      2  1
  • Publication
    Effect of zinc oxide surface treatment concentration and nanofiller loading on the flexural properties of unsaturated polyester/kenaf nanocomposites
    ( 2023-09-01)
    Mohammed M.
    ;
    Oleiwi J.K.
    ;
    Jawad A.J.a.M.
    ;
    Mohammed A.M.
    ;
    Azlin Fazlina Osman
    ;
    Rozyanty Rahman
    ;
    Tijjani Adam
    ;
    Betar B.O.
    ;
    Subash Chandra Bose Gopinath
    ;
    Dahham O.S.
    Due to environmental concerns and budgetary constraints associated with synthetic fibers, natural fibers (NFr) are becoming increasingly popular as reinforcement in polymer composites (PCs) for structural components and construction materials. The surface treatment (ST) method is a well-established technique for enhancing the strength of interfacial bonding between NFr and the polymer matrix (PM). As a result, this research aims to determine the effect of ST with zinc oxide nanoparticles (ZnONPs) on the flexural properties of unsaturated polyester (UPE)/kenaf fiber (KF) nanocomposites. The hand lay-up technique was employed to produce KF-reinforced unsaturated polyester composites (KF/UPE) for this investigation. UPE/KF-ZnONPs composites were made with varying NFr loadings (weight percent), ranging from 10 to 40%. KF was treated with five distinct amounts of ZnONPs (from 1 to 5% weight percent). According to the findings of the investigation, the composite samples incorporating ZnONPs displayed superior optimum flexural properties compared to the untreated KF composite. It was found that 2% ZnONPs was optimal, and ST with ZnONPs could produce robust KF with improved flexural properties.
      1  13