ALIFF HISYAM BIN A RAZAK

@uthm.edu.my

Ts. Dr. / Department of Chemical Engineering Technology / Faculty of Engineering Technology
Universiti Tun Hussein Onn Malaysia

ALIFF HISYAM BIN A RAZAK


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https://researchid.co/aliff
I am a senior lecturer and researcher from Universiti Tun Hussein Onn Malaysia, which is located in Pagoh-Muar, Malaysia. Currently, I teach chemical engineering subjects which are thermodynamics and fluid mechanics. My research interests are particularly in elastomer, adhesive material, polymeric-based surfactant for pharma/cosme-ceutical products, composite polymer material, bio-based material, and safety and health I possess a professional certification as Professional Technologist (Ts) under Malaysia Board of Technology Malaysia (MBOT). In addition, I am certified in Safety and Health Officer (SHO) and Professional Halal Executive certifications.

Currently, I have two postgraduate students who are doing their master project in biodegradable material and safety.

EDUCATION

1) Degree in Chemical Engineering - University of Minnesota (U of M), Minneapolis, USA.
2) Master in Chemical Engineering - National University of Malaysia (UKM), Bangi, Malaysia
3) PhD in Chemical Engineering (Polymer) - Technical University of Denmark (DTU), Lyngby, Denmark

RESEARCH INTERESTS

Polymer material, composite material, elastomer, adhesive polymer, polymer-based surfactant and cosmeceutical product
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Scopus Publications

Scopus Publications

  • Fluorine-free Superhydrophobic Stearic Acid Modified Kaolin Nanoparticles for Self-cleaning Silicone Rubber Surface
    Khoirussolih Aminuddinan, Nor Aini Ijaman, Ahmad Faez Abdul Khalil, Mohd Haiqal Abd Aziz, Aliff Hisyam A Razak, et al.
    Malaysian Journal of Fundamental and Applied Sciences, 2024
    This study introduces fluorine-free nanoparticles to innovate superhydrophobic surfaces for self-cleaning applications, addressing environmental concerns linked to fluorine-based compounds. The method involves modifying kaolin nanoparticles with stearic acid and integrating them into silicone. The surface of stearic acid-kaolin nanoparticles exhibits a contact angle of 149.4° ± 3.3, while the resulting composite film exhibits a contact angle of 113.9° ± 5.8. The surface roughness of the silicone rubber surfaces increases proportionally with higher concentrations of stearic acid-modified kaolin nanoparticles. Field Emission Scanning Electron Microscopy (FESEM) analysis demonstrates the successful coverage of kaolin nanoparticles-stearic acid on resulting film. Self-cleaning performance is evaluated by simulating the deposition of graphite powder onto the surfaces and subsequently observing the behaviour when water is dropped on them revealing their remarkable self-cleaning properties.
  • Confinement of the Permittivity Enhancing Fillers in Bacterial Cellulose for Dielectric Elastomer Applications
    Nur Syafiqah Binti Ismail, Syed Muhammad Aiman Bin Syed Mohd Hakhiri, Siti Noor Hidayah Binti Mustapha, Aliff Hisyam Bin Bin A Razak, Mohd. Hairul Bin Ab. Rahim, et al.
    Solid State Phenomena, 2024
    The electromechanical performances of dielectric elastomers were investigated after the incorporation of the confined permittivity enhancing fillers in bacteria cellulose (BC) into polydimethylsiloxane (PDMS) films. The purpose of this study is to investigate the capability of BC as a confinement matrix for the permittivity enhancing fillers to overcome the low relative permittivity and at the same time to increase the softness of the PDMS films. The metal oxide and silicone oil were confined in BC before being physically mixed with PDMS at different percentages. The results showed that the confined TiO2-BC increased the relative permittivity and at the same time maintained the softness of the PDMS films to some extent. In addition to that, by adding confined silicone oil-BC into the PDMS films, this PDMS based dielectric elastomer (DE) becomes even softer.
  • Evaluation of Natural Rubber Latex Film Consisting Cassava Peel as A Bio-Based Filler for Biodegradable Gloves
    Nur Syafikah Mohd Anuar, Aliff Hisyam A. Razak, Wendy Yen Wee Ni, Mahiratul Husna Mustaffar, Azrin Hani Abdul Rashid, et al.
    Aip Conference Proceedings, 2022
  • Bacillus megaterium: a Potential and an Efficient Bio-Degrader of Polystyrene
    Tan Kian Meng, Angzzas Sari Binti Mohd Kassim, Aliff Hisyam Bin A Razak, Noor Akhmazillah Binti Mohd Fauzi
    Brazilian Archives of Biology and Technology, 2021
  • Isolation and identification of polystyrene degrading bacteria from zophobas morio’s gut
    Kian Meng TAN, Noor Akhmazillah MOHD FAUZI, Angzzas Sari MOHD KASSIM, Aliff Hisyam A RAZAK, Kamarul Rahim KAMARUDIN
    Walailak Journal of Science and Technology, 2021
    Polystyrene (PS) and expanded polystyrene (EPS) are commodity plastics widely used in many industries. The increase of PS in the environment causes ecological threats. It has been observed that the beetle larvae feed on plastic packages, and this has drawn the researcher’s attention towards the complex system within the larvae’s gut where relationships between fungi, bacteria, and the insect host have been established. The objective of this study is to isolate and identify PS-degrading microbe from super worms. The study used polystyrene as a sole carbon source to isolate the positive PS-degrading bacteria. Five bacterial colonies which showed positive growth on the modified PS-agar plate were isolated. All five colonies of the PS-degrading bacterial isolates were identified using partial 16 S rRNA gene sequencing. The results showed a close relationship between Bacillus aryabhattai and Bacillus megaterium strains. An examination via biochemical studies for distinction was implemented further. Based on the morphological characterization and taxonomic method, the isolates were identified as Bacillus megaterium. The isolates' viability was tested using 2,3,5-triphenyltetrazolium chloride (TTC), and positive results were obtained with red-colored insoluble triphenylformazan (TPF) formed within 5 to 7 days. The isolation and identification of these bacteria from Zophobas morio’s gut may provide a promising source of a plastic degrading enzyme that can be further studied and manipulated in developing enzymatic biodegradation in plastic waste management.
  • Silicone dielectric elastomers with incorporation of different types of filler as smart materials for wave energy harvester
    International Journal of Emerging Trends in Engineering Research, 2020
  • Silicone elastomers with covalently incorporated aromatic voltage stabilisers
    A. H. A. Razak, A. L. Skov
    Rsc Advances, 2017
    When optimising dielectric elastomers (DEs) a conflict exists, namely that for large achievable actuation strains softness is required, but with increased softness electrical breakdown strength decreases.
  • Voltage-stabilised elastomers with increased relative permittivity and high electrical breakdown strength by means of phase separating binary copolymer blends of silicone elastomers
    Aliff Hisyam A Razak, Liyun Yu, Anne Ladegaard Skov
    Rsc Advances, 2017
    Increased electro-mechanical properties of silicone-based dielectric elastomers are achieved by means of the addition of so-called voltage-stabilisers prepared from PDMS–PPMS copolymers.
  • Mechanically Compliant Electrodes and Dielectric Elastomers from PEG-PDMS Copolymers
    Aliff Hisyam A. Razak, Frederikke Bahrt Madsen, Anne Ladegaard Skov
    MRS Advances, 2016
    Soft conducting elastomers have been prepared from polydimethylsiloxane-polyethyleneglycol (PDMS-PEG) copolymer and surfactant-stabilized multi-walled carbon nanotubes (MWCNTs). The copolymer was chain-extended with PDMS of molecular weight 17.2 kg mol -1 in order to obtain a crosslinkable PDMS with molecular weight around 20 – 30 kg mol -1 . MWCNTs were treated with surfactant and sonicated for better dispersion in the polymer matrix. The conductivity and mechanical properties of conducting elastomers were thoroughly investigated including stress and strain at break. The developed conducting elastomers showed high conductivity combined with inherent softness. The high conductivity and softness, PDMS-PEG copolymers with incorporated MWCNTs hold great promises as compliant and highly stretchable electrodes for stretchable devices such as electro-mechanical transducers.
  • Enhancement of dielectric permittivity by incorporating PDMS-PEG multiblock copolymers in silicone elastomers
    Aliff Hisyam A. Razak, Peter Szabo, Anne Ladegaard Skov
    Rsc Advances, 2015
    A silicone elastomer from PDMS-PEG multiblock copolymer has been prepared by use of silylation reactions for both copolymer preparation and crosslinking.

RESEARCH OUTPUTS (PATENTS, SOFTWARE, PUBLICATIONS, PRODUCTS)

Cosmeceutical product, adhesive polymer, bioactive-compound patch, hydrogel patch, biodegradable rubber, and safety qualitative study and material.

Industry, Institute, or Organisation Collaboration

Nasuha Herbs (Pagoh, Muar, Malaysia), N&E Innovations Pte. Ltd. (Singapore)

INDUSTRY EXPERIENCE

Waste water treatment