Norshah Aizat Shuaib
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Preferred name
Norshah Aizat Shuaib
Official Name
Norshah Aizat, Shuaib
Alternative Name
Shuaib, Norshah A.
Shuaib, N. A.
Shuaib, Norshah Aizat bin
Main Affiliation
Scopus Author ID
25628938500
Researcher ID
AAM-7559-2021

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  • Publication
    Mechanical properties and environmental assessment of recycled carbon fibre reinforced polypropylene and acrylonitrile butadiene styrene products
    ( 2020)
    A N Allawi
    ;
    Norshah Aizat Shuaib
    ;
    N W Y Omar
    ;
    Azwan Iskandar Azmi
    In this study, the main objective is to determine effect of recycled carbon fibre (RCF) on the mechanical properties of thermoplastics composites and associated environmental impacts. Such study is important to improve the strength of the composites as previous studies are limited on RCF composites, particularly in environmental aspects. In the compounding stage, extrusion process was carried out by using two different thermoplastics i.e. polypropylene (PP) and acrylonitrile butadience styrene (ABS) mixing with RCF. Particle size and weight loading of RCF were chosen as parameters to be studied. Bonding strength between the RCF and thermoplastics matrix was investigated through tensile and flexural properties. Lastly, the assessment of the products was carried out to determine the environmental impacts. Generally, the incorporation of RCF into PP and ABS plastic increases the tensile and flexural properties of the samples. It can be seen that the addition of rCF significantly improves tensile modulus and flexural strength up to 10 wt% filler loading. From the environmental impact assessment, the ABS products have greater impact in all categories. The usage of rCF reduce the amount of plastic hence leads to lower environmental impacts. The product has a potential to be used in mechanical demanding application particularly those require high flexural strength and tensile modulus properties.
      22  1
  • Publication
    Effect of Build Parameters on Process Energy Consumption and Material Usage in Fused Deposition Modelling Method
    (Institute of Physics, 2022-01-01)
    Omar N.W.Y.
    ;
    Norshah Aizat Shuaib
    ;
    Azwan Iskandar Azmi
    ;
    Mohd Haidiezul Jamal Ab Hadi
    Fused deposition modelling (FDM) process is one of popular 3D printing technologies, especially on printing polymer materials for a rapid prototyping. The process is well known for its resource saving, with no tooling cost required and minimum energy demand. However, the challenge is that the process performances are highly influenced by selection of parameters. From literature, consideration on material usage and process energy demand in FDM processes is still limited. This study used an L9 Taguchi orthogonal array design in investigating effect of build orientation, printing speed and layer thickness on process energy consumption and total material usage in FDM processes. The p-values from ANOVA analysis revealed that only layer thickness and build orientation had significant effect on the outputs. In minimising material usage, the strategy is to select the correct build orientation to avoid need of support structure. For reducing energy demand, optimum layer thickness needs to be determined by considering other factors such as mechanical properties and surface roughness. This study provides preliminary findings which will benefit FDM users in using resources efficiently. Further studies are required to complement the findings from the aspects of mechanical and physical properties of the printed products.
      2  3
  • Publication
    Surface treatment of recycled carbon fibre for interfacial enhancement in reinforced polypropylene product
    (IOP Publishing Ltd, 2020)
    A Salleh
    ;
    Norshah Aizat Shuaib
    ;
    N W Y Omar
    ;
    Azwan Iskandar Azmi
    Recycled carbon fibre (rCF) is used in various applications as measures to reduce the carbon fibre waste in landfill. This study focuses on using rCF in powder form in injection moulded polypropylene (PP) products. The rCF was treated with 0.5 mol/L and 1.0 mol/L nitric acid. The tensile and flexural properties were evaluated and morphological surface of the samples was characterised using scanning electron microscopy (SEM). As the result, higher concentration of nitric acid increased the tensile strength but leads to lower flexural strength. Apart from that, the environmental assessment using OpenLCA software shows that the addition of RCF filler loading leads to reduction of climate change and acidification potential.
      20  2
  • Publication
    Mechanical and physical properties of recycled-carbon-fiber-reinforced polylactide fused deposition modelling filament
    (MDPI, 2022-01-01)
    Omar N.W.Y.
    ;
    Norshah Aizat Shuaib
    ;
    Mohd Haidiezul Jamal Ab Hadi
    ;
    Azwan Iskandar Azmi
    ;
    Muhamad Nur Misbah
    Carbon-fiber-reinforced plastic materials have attracted several applications, including the fused deposition modelling (FDM) process. As a cheaper and more environmentally friendly alternative to its virgin counterpart, the use of milled recycled carbon fiber (rCF) has received much attention. The quality of the feed filament is important to avoid filament breakage and clogged nozzles during the FDM printing process. However, information about the effect of material parameters on the mechanical and physical properties of short rCF-reinforced FDM filament is still limited. This paper presents the effect of fiber loading (10 wt%, 20 wt%, and 30 wt%) and fiber size (63 µm, 75 µm, and 150 µm) on the filament’s tensile properties, surface roughness, microstructure, porosity level, density, and water absorptivity. The results show that the addition of 63 µm fibers at 10 wt% loading can enhance filament tensile properties with minimal surface roughness and porosity level. The addition of rCF increased the density and reduced the material’s water intake. This study also indicates a clear trade-off between the optimized properties. Hence, it is recommended that the optimization of rCF should consider the final application of the product. The findings of this study provide a new manufacturing strategy in utilizing milled rCF in potential 3D printing-based applications.
      2  4
  • Publication
    Roles of new bio-based nanolubricants towards eco-friendly and improved machinability of Inconel 718 alloys
    ( 2020-04-01)
    Ali M.A.M.
    ;
    Azwan Iskandar Azmi
    ;
    Muhamad Nasir Murad
    ;
    Mohd Zahiruddin Md. Zain
    ;
    Ahmad Nabil Mohd Khalil
    ;
    Norshah Aizat Shuaib
    The adverse effects of mineral oil-based metal cutting fluid on environmental sustainability have led to increased industrial concerns. Alternatively, biodegradable lubricants such as vegetable oil has a more positive impact with equivalent performance, but insufficient research on their benefits demands further exploration. This work features extensive experimental investigations on machining of Inconel 718 using novel formulations of coconut bio-based oil with enhanced nanoparticles and coco-amido-propyl-betaine. Bio-based with 0.8 wt% of Al2O3 managed to minimise the rapid growth of tool wear and prolong the tool life by 40.17%. Conversely, bio-based with 0.5 wt% of Al2O3 yielded lower values of cutting force (64.32 N), spindle power (2070 kW), specific cutting energy (6.55 W/mm3), and surface roughness (0.29 μm). The outstanding performance of bio-based nanolubricants contributed to superior machinability efficiency and eco-friendly machining environments.
      2  39