Mohamad Syahmie Mohamad Rasidi
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Preferred name
Mohamad Syahmie Mohamad Rasidi
Official Name
Mohamad Syahmie , Mohamad Rasidi
Translated Name
M. Syahmie
Alternative Name
Rasidi, M. Syahmie
Rasidi, Mohamad Syahmie Mohamad
Rasidi, Mohd
Rasidi, M. S. M.
Syahmie Rasidi, M.
Main Affiliation
Scopus Author ID
56051090900
Researcher ID
GFR-1887-2022

Research Output
Now showing 1 - 2 of 2
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Effect of styrene content on structure and properties of vulcanizates from natural rubber grafted with polystyrene

2025 , Nabil Hayeemasae , Siriwat Soontaranon , Zunaida Zakaria , Mohamad Syahmie Mohamad Rasidi , Abdulhakim Masa

Graft copolymer from natural rubber grafted with polystyrene (NR-g-PS) was prepared. Influences of polystyrene (PS) content grafted on the natural rubber (NR) were investigated. Prior to compounding and compression molding to vulcanizates, the graft copolymers were prepared by emulsion polymerization. Proton nuclear magnetic resonance confirmed the chemical structure of the graft copolymer as NR-g-PS. Grafting of PS onto NR improved the tensile modulus and tensile strength of the vulcanizate, whereas the elongation at break decreased, depending on the PS content. However, a drastic reduction of tensile strength and elongation at break were seen when the PS content was greater than 20%. Compared to ungrafted NR, the onset strain for deformation-induced crystallization of graft copolymers was reduced, while the crystallinity at a given strain was higher. The improved tensile properties and crystallization ability suggest interfacial interactions of NR and PS phases. Such interactions were also responsible for improved thermal stability of the graft copolymer, having the degradation temperature increased by 17–38°C over the ungrafted NR. The best balance in overall properties was achieved by NR/PS 90/10.

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Publication

A review on the potential of polylactic acid based thermoplastic elastomer as filament material for fused deposition modelling

2022 , Luqman Musa , Nitiyah Krishna Kumar , Shayfull Zamree Abd. Rahim , Mohamad Syahmie Mohamad Rasidi , Allan Edward Watson Rennie , Rozyanty Rahman , Armin Yousefi Kanani , Ahmad Azrem Azmi

Currently, a range of sectors are implementing three-dimensional (3D) printing, which is a part of additive manufacturing (AM) technology via the fused deposition modelling (FDM) approach. As of now, various filament materials are available in the market and have their limitations. Thermoplastic elastomer (TPE) blend as a filament material in 3D printing should be implemented to overcome the weakness of available filaments. TPE blend stands out due to its flexibility, thermoplastic-like processability, and renewability. Based on the findings, TPE blend filament can be made with polylactic acid (PLA) thermoplastic and elastomers such as natural rubber (NR) and epoxidized natural rubber (ENR). The TPE printed components will be flexible; tough with excellent thermal and mechanical properties. In this paper, the characteristics of TPE are being reviewed to show the potential of TPE material as filament.

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