Muhamad Qauyum Zawawi Ahamad Suffin
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Muhamad Qauyum Zawawi Ahamad Suffin
Official Name
Muhamad Qauyum Zawawi , Ahamad Suffin
Alternative Name
Ahamad Suffin, Muhamad Qauyum Zawawi
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  • Publication
    The Effects of Self-Polymerized Polydopamine Coating on Mechanical Properties of Polylactic Acid (PLA)–Kenaf Fiber (KF) in Fused Deposition Modeling (FDM)
    ( 2023-06-01)
    Sanusi Hamat
    ;
    Syamir Alihan Showkat Ali
    ;
    Salit M.S.
    ;
    Yidris N.
    ;
    Showkat Ali S.A.
    ;
    Mohd Sabri Hussin
    ;
    Muhamad Saifuldin Abdul Manan
    ;
    Muhamad Qauyum Zawawi Ahamad Suffin
    ;
    Maliki Ibrahim
    ;
    Ahmad Nabil Mohd Khalil
    This research examines the impact of self-polymerized polydopamine (PDA) coating on the mechanical properties and microstructural behavior of polylactic acid (PLA)/kenaf fiber (KF) composites in fused deposition modeling (FDM). A biodegradable FDM model of natural fiber-reinforced composite (NFRC) filaments, coated with dopamine and reinforced with 5 to 20 wt.% bast kenaf fibers, was developed for 3D printing applications. Tensile, compression, and flexural test specimens were 3D printed, and the influence of kenaf fiber content on their mechanical properties was assessed. A comprehensive characterization of the blended pellets and printed composite materials was performed, encompassing chemical, physical, and microscopic analyses. The results demonstrate that the self-polymerized polydopamine coating acted as a coupling agent, enhancing the interfacial adhesion between kenaf fibers and the PLA matrix and leading to improved mechanical properties. An increase in density and porosity was observed in the FDM specimens of the PLA–PDA–KF composites, proportional to their kenaf fiber content. The enhanced bonding between kenaf fiber particles and the PLA matrix contributed to an increase of up to 13.4% for tensile and 15.3% for flexural in the Young’s modulus of PLA–PDA–KF composites and an increase of up to 30% in compressive stress. The incorporation of polydopamine as a coupling agent in the FDM filament composite led to an improvement in tensile, compressive, and flexural stresses and strain at break, surpassing that of pure PLA, while the reinforcement provided by kenaf fibers was enhanced more by delayed crack growth, resulting in a higher strain at break. The self-polymerized polydopamine coatings exhibit remarkable mechanical properties, suggesting their potential as a sustainable material for diverse applications in FDM.
      2
  • Publication
    Asas tuangan : dalam fabrikasi logam
    ( 2014)
    Mohd Fitri M.W.
    ;
    Mohamed Faisol Mohamed Nor
    ;
    Faizul Che Pa
    ;
    Muhamad Qauyum Zawawi Ahamad Suffin
    Tuangan adalah salah satu teknik penghasilan logam yang telah lama dipraktikkan. Setiap kaedah tuangan mempunyai kelebihan dan keunikan yang tersendiri. Dengan perkembagan dan kemajuan teknologi kejuruteraan, teknik tuangan telah dipertingkatkan dan diperluaskan. Topik yang terkandung di dalam buku ini telah diolah dan disusun bagi tujuan pengajaran dan pembelajaran tentang penghasilan logam melalui teknik tuangan. Dengan terhasilnya penerbitan buku ini, diharapkan dapat membantu dan meningkatkan pemahaman terhadap asas-asas tuangan logam.
      22  726
  • Publication
    Asas seramik
    ( 2014)
    Alida Abdullah
    ;
    Shahrizam Saad
    ;
    Abdullah Chik
    ;
    Mohd. Mustafa Al Bakri Abdullah
    ;
    Muhamad Qauyum Zawawi Ahamad Suffin
    Buku ini membicarakan beberapa asas dalam bidang seramik. Ia meliputi aspek seperti pengenalan bahan seramik, seramik silikat, kaca dan seramik kaca, komposit matrik seramik, elektroseramik dan seramik oksida. Buku ini sesuai untuk dijadikan sebagai rujukan asas bagi pelajar-pelajar kejuruteraan bahan, kejuruteraan awam, sains dan lain-lain. Ia merangkumi beberapa subjek asas yang biasa dipelajari dalam bidang seramik.
      19  551