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Khairun Azizi Azizli  - - - 
Top co-authors
Zakaria Man

53 shared publications

Department of Chemical Engineering; Universiti Teknologi PETRONAS, Bandar Seri Iskandar; Perak 32610 Malaysia

Hafeez Ullah

26 shared publications

University of Health Sciences

Muhammad Irfan Khan

23 shared publications

International Islamic University, Department of Environmental Sciences, Islamabad 44000, Pakistan

Ahmer Ali Siyal

2 shared publications

Publication Record
Distribution of Articles published per year 

Total number of journals
published in
Article 5 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 5 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 4 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.
Conference 6 Reads 0 Citations Geopolymers as a Sustainable Binder of 21st Century: A Review Muhammad Irfan Khan, Khairun Azizli, Suriati Sufian, Aamir S... Published: 12 November 2014
The 4th World Sustainability Forum, doi: 10.3390/wsf-4-d010
DOI See at publisher website
Conference 10 Reads 1 Citation Sodium Silicate Free Geopolymer As Coating Material: Adhesion To Steel M. Irfan Khan, Khairun Azizli, Suriati Sufian, Ahmer Ali Siy... Published: 30 May 2014
1st International Electronic Conference on Materials, doi: 10.3390/ecm-1-b016
DOI See at publisher website