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Khairun Azizi Mohd. Azizli  - - - 
Top co-authors See all
Khairun Azizi Mohd. Azizli

44 shared publications

Universiti Teknologi PETRONAS, Department of Chemical Eng.Malaysia

Suriati Sufian

5 shared publications

Universiti Teknologi PETRONAS

Muhammad Irfan Khan

3 shared publications

Universiti Teknologi PETRONAS, Department of Chemical Engineering,Tronoh,Malaysia

Ahmer Ali Siyal

2 shared publications

Hafeez Ullah

2 shared publications

Universiti Teknologi PETRONAS Bandar Seri Iskandar

44
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Publication Record
Distribution of Articles published per year 
(1995 - 2016)
Total number of journals
published in
 
22
 
Publications See all
Article 6 Reads 2 Citations Geopolymerization kinetics of fly ash based geopolymers using JMAK model Ahmer Ali Siyal, Khairun Azizi Azizli, Zakaria Man, Lukman I... Published: 01 November 2016
Ceramics International, doi: 10.1016/j.ceramint.2016.07.006
DOI See at publisher website
Article 0 Reads 0 Citations The Impact of Different Polydimethylsiloxane Core Materials on the Properties of Melamine Formaldehyde Microcapsules Hafeez Ullah, Khairun Azizi Mohd. Azizli, Zakaria Man, Muham... Published: 01 May 2016
Key Engineering Materials, doi: 10.4028/www.scientific.net/kem.694.58
DOI See at publisher website
Article 0 Reads 1 Citation Treatment of POME using Fenton oxidation process: removal efficiency, optimization, and acidity condition Mohamed Osman Saeed, Khairun Azizi Mohd. Azizli, Mohamed Has... Published: 17 February 2016
DESALINATION AND WATER TREATMENT, doi: 10.1080/19443994.2016.1141715
DOI See at publisher website
Article 0 Reads 3 Citations The potential of microencapsulated self-healing materials for microcracks recovery in self-healing composite systems: A ... Hafeez Ullah, Khairun Azizi Mohd. Azizli, Zakaria B Man, Muk... Published: 08 January 2016
Polymer Reviews, doi: 10.1080/15583724.2015.1107098
DOI See at publisher website
Article 7 Reads 0 Citations Synthesis and Characterization of Urea-formaldehyde Microcapsules Containing Functionalized Polydimethylsiloxanes Hafeez Ullah, Khairun Azizli, Zakaria B. Man, Mokhtar B. Che... Published: 01 January 2016
Procedia Engineering, doi: 10.1016/j.proeng.2016.06.519
DOI See at publisher website ABS Show/hide abstract
Self-healing anticorrosive coatings require healing agents with hydrophobic properties and low glass transition temperature. Polydimethylsiloxanes are group of compounds with high degree of hydrophobicity and very low glass transition temperatures. The nature of functional group of core material highly affect the properties of resultant microcapsules. Therefore, in this work, three polydimethylsiloxanes with different functional groups were successfully encapsulated in urea-formaldehyde microcapsules for self-healing applications through oil-in-water (OIW) emulsion polymerization. The resultant microcapsules were analyzed via Fourier transformed Infrared spectroscopy (FT-IR) for structural confirmation, thermogravimetric analysis (TGA) for the thermal behaviour, scanning electron microscopy (SEM) for size and morphology, and electron dispersive spectroscopy (EDS) for the elemental composition. For OH and vinyl terminated PDMS, microcapsules had diameters in the range of 100 to 500 μm while for Epoxy terminated PDMS microcapsules diameters were in the range of 50 to 100 μm. Thermal degradation behaviour was also different for all kinds of microcapsules, showing that nature of core materials affect the properties of microcapsules.
Article 5 Reads 6 Citations Effects of Parameters on the Setting Time of Fly Ash Based Geopolymers Using Taguchi Method Ahmer Ali Siyal, Khairun Azizi Azizli, Zakaria Man, Hafeez U... Published: 01 January 2016
Procedia Engineering, doi: 10.1016/j.proeng.2016.06.624
DOI See at publisher website ABS Show/hide abstract
Geopolymers are the inorganic polymer materials possessing properties superior than the properties of conventional materials. Geopolymers are also environment friendly materials. This paper determines the effects of parameters such as silica to alumina (Si/Al) ratio, sodium to alumina (Na/Al) ratio, water to solid (W/S) ratio, and temperature on the setting of fly ash geopolymers. The experiments were designed using Taguchi model. The setting time was determined by Vicat Needle apparatus. The Si/Al - 2.2, Na/Al - 1.4, W/S - 0.30, and temperature of 40 °C increased the setting time and workability of the geopolymers. The Si/Al ratio of 1.8, Na/Al ratio of 1.0, W/S ratio of 0.20, and temperature of 80° C caused fast setting of geopolymers. The setting time of geopolymers can be optimized using Taguchi method for particular applications.
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