- Natural Fiber Reinforced Composites
- Conducting polymers and applications
- biodegradable polymer synthesis and properties
- Liquid Crystal Research Advancements
- Photochromic and Fluorescence Chemistry
- Polymer Nanocomposites and Properties
- Nanocomposite Films for Food Packaging
- Polymer Nanocomposite Synthesis and Irradiation
- Flame retardant materials and properties
- Additive Manufacturing and 3D Printing Technologies
- Innovations in Concrete and Construction Materials
- Photoreceptor and optogenetics research
- Material Properties and Failure Mechanisms
- Organic Electronics and Photovoltaics
- Advanced Fiber Optic Sensors
- Ionic liquids properties and applications
- Microplastics and Plastic Pollution
- Advanced Battery Materials and Technologies
- Carbon dioxide utilization in catalysis
- Graphene research and applications
- Tribology and Wear Analysis
- Fatigue and fracture mechanics
- Bone Tissue Engineering Materials
- Silicone and Siloxane Chemistry
- Magnesium Oxide Properties and Applications
Universiti Teknologi MARA
2011-2024
University of Malaya
2019-2021
Universiti Teknologi MARA System
2018-2019
In the search for novel smart multifunctional liquid crystalline materials, we report synthesis, thermal and structural characterisation, conductivity, of a set new block statistical copolymers, containing light-responsive mesogenic groups (MeOAzB), polar sulfonic acids (AMPS), methyl(methacrylate) (MMA). By using cascade reversible addition-fragmentation chain polymerisations, RAFT, have tailored different side-chain polymeric structures by controlling monomer composition (MeOAzB/AMPS/MMA)...
Light-responsive materials capable of undergoing photoinduced molecular transformation are excellent candidates for energy storage. Herein, we report a promising new liquid crystalline terpolymer that is trapping the absorbed photon upon exposure to UV light through trans → cis isomerization and aggregation. MeOAzB-T (contains p-methoxyazobenzene, 2-acrylamido-2-methyl-1-propanesulfonic acid, methyl(methacrylate) monomeric units) shows ← normal thermal recovery in solution (THF) after...
Acrylonitrile butadiene styrene (ABS) is a desirable engineering plastic due to its outstanding properties including good processing characteristic, mechanical properties, chemical resistance and relatively low cost. However, having an insulating behaviour restricts application in electrical electronic products. With the aim increase conductivity of ABS, conducting material, this case, graphene was incorporated. Mixtures ABS were prepared by varying weight their measured using...
The preliminary study of recycled Polyethylene Terephthalate (rPET) reinforced Empty Fruit Brunch (EFB) fibers as a potential biodegradable 3-dimensional (3D) printing filament material was investigated through melt flow viscosity analysis. 10 wt% EFB fiber blended with 90 rPET using internal mixer until steady state condition achieved. index (MFI) rPET/EFB composite tested at 250℃ to 280℃. addition increased the MFI value compared all temperatures significantly. starts flowing lower...
Due to the current worldwide energy and economic crisis, all possible options of reducing consumption are explored. This drives chemical processing plant as one energy-intensive consumers strive for efficiency projects such retrofitting heat exchanger network (HEN). The retrofit project is focusing on reduction in its minimum requirement (MER). As a result this, will increase tremendously. In this work, pinch technology exploited analysing potential saving gain. case study typical methanol...
ABSTRACT Trace amounts of hydrogen sulfide (H2S) in a carbon dioxide (CO2) dominant environment reduce general corrosion rates by forming thin iron layers but increase localized corrosion. This study investigates how varying H2S concentrations affect the API 5L X65 steel at 70°C. Using 2L glass cell setup, coupons were immersed solution containing 1000 ppm NaCl and 500 HAc for seven days. Corrosion determined through weight loss measurements, surface morphology was analyzed using SEM EDX. 0,...
It is known that polarization holography uses photoanisotropic materials to record the state of light polarization. The polarization-holographic method storage, transformation, transmission and processing information one most promising directions not only in optical but also general among technologies. potential increasing sensitivity certain types yet fully mastered. In this paper, azodyecontaining polymers are represented as a result study polarization-sensitive materials, which...
Demand for biocomposites are emerging in various applications from industrial to medical. A promising biocomposite is polylactic acid (PLA) and empty fruit bunch (EFB). Therefore, the effect of fiber loading on mechanical thermal properties was investigated. The were produced with untreated treated loadings ranging 10 weight (wt)% 50 wt%. EFB chemically sodium hydroxide followed by silane increase compatibility PLA. Fabrication done using an internal mixer preparation testing specimens hot...
Abstract High density polyethylene (HDPE) polymer suffers with lack of strength and flexibility that result in fracture vessels leakage piping system. One way to overcome the brittleness problem is by reinforcement fillers such as fibers into matrix form a composite. In this study, effect incorporating rubber leaves filler high on tensile properties morphology composite was investigated. The composites were prepared or without addition glycerol plasticizer citric acid cross linker. Despite...
Renewable resourced green biocomposites are currently receiving much attention due to their environmental advantages. Therefore, the aim of this research is study effect fiber surface treatment on mechanical properties polylactic acid (PLA) biocomposite in order produce a biocomposite. Experiments were conducted by empty fruit bunch using two methods, sodium hydroxide and silane. Both treated untreated fibers then melt compounded with PLA was studied. The results showed that silane improved...
Composites are made of a combination two or more individual material, produced to increase the mechanical and physical performance materials. Poly (lactic acid) (PLA) based composite has gained great interest due its biocompatibility biodegradability features. However, PLA limitations such as brittle behavior, narrow processing techniques, low heat distortion temperature, limited melt strength poor thermal stability brought into huge challenge for large-scale usage. To overcome these...
Effect of nanoMagnesium Hydroxide (MH) nloading amount to the mechanical and physical properties Low Density Polyethylene (LDPE)/ Poly (ethylene-co vinyl acetate)(EVA) nanocomposite has been described investigated in this paper. The tensile strength results show that increased nanofiller will decrease deteriorate properties. elongation at break decreased continuously with increasing loading nanofiller. Generally, become poorer as increase. Melt Flow Index values for also provide same trend...
The effect of various chemical treatments on properties PLA-EFB (polylactic acid - empty fruit bunch) biocomposite were investigated. This treatment is essential to enhance compatibility PLAEFB and strengthen the biocomposite's mechanical thermal properties. Three treatments; NaClO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> , /Silane /NaOH done EFB fibers. tensile, flexural impact tests demonstrated that PLA which blends with...
Biocomposites demands are significantly rising due to environmental regulations and concerns. However, incompatibility between the fibre matrix is a major setback that diminishes biocompostie properties. Therefore in this work, methylene diphenyl diisocynate (MDI) compatibilizers were used together with surface treatment order increase compatibility polylactic acid (PLA) Elaeis Guineensis Fibres (EGF) biocomposite. Nonisothermal properties investigated it was found that, MDI increased of PLA...
Blends of Ethylene Vinyl Acetate (EVA) and Low-Density Polyethylene (LDPE) are promising composite which have good mechanical properties to environmental stress cracking. However, they lack fire resistant properties, limits it usage in wire cable industry. In order improve flame retardancy ability, a range nano-magnesium hydroxide (nano-MH) loading is from 0 phr maximum 20 with ultrasonic extrusion 0-100 kHz frequencies been introduced. Ultrasonic was used the distribution nano-MH. It found...