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
    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.
  • 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.
  • 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.
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