Author/Authors :
Bazin, Maisarah Mohamed Universiti Teknologi Malaysia - Faculty of Mechanical Engineering - Department of Materials, Manufacturing and Industrial Engineering, Malaysia , Ahmat, Muhd Amirudin Universiti Teknologi Malaysia - Faculty of Mechanical Engineering - Department of Materials, Manufacturing and Industrial Engineering, Malaysia , Zaidan, Nurhanna Universiti Teknologi Malaysia - Faculty of Mechanical Engineering - Department of Materials, Manufacturing and Industrial Engineering, Malaysia , Ismail, Ahmad Fauzi Universiti Teknologi Malaysia - Advanced Membrane Technology Research Centre (AMTEC), Malaysia , Ahmad, Norhayati Universiti Teknologi Malaysia - Faculty of Mechanical Engineering - Department of Materials, Manufacturing and Industrial Engineering, Malaysia
Abstract :
The use of starch as pore-forming agent is one of the frequently used methods to produce porous ceramics membrane with controlled microstructure (porosity and pore size) because corn starch are cheap, non- toxic and environmental friendly. A membrane with the mixture 0–35 wt% of corn starch and ball clay were prepared by compaction process and sintered at 1200°C. Thermal analysis has been done to identify the minimum sintering temperature for ball clay. The sintered membranes show the range value of shrinkage is 4.5–22.76 % and apparent porosity of 9.14–31.83 % depending on the starch content. The pore structures were analyzed by FESEM. The strength of sintered samples was tested by 3-point bending test. The flexural strength reduced from 21–7 MPa. These clay membrane are promising porous ceramic structure for water filtration applications due to their excellent combination physical and mechanical properties.
Keywords :
Ball clay , ceramic membranes , corn starch , apparent porosity , flexural strength
