Effect of Thermal Treatment on Mechanical Properties Rice Husk Ash Filled Tapioca Starch Composite
Dk Norsyafina Binti Pg Adnan, Sazmal Effendi Arshad
This research presents a biopolymer from tapioca starch (TPS) as the base and rice husk ash (RHA) as the filler material. TPS molding was prepared by gelatinization and casting technique. Rice husk ash was produced from leaching treatment with calcinations at 700oC for 24 hour. The effect of thermal treatment with varying content of rice husk ash (0, 1, 2, and 3 %) on mechanical properties of tapioca starch composite was evaluated in order to get the characterization of the composite. Result shows a decrease in mechanical properties with the increase of rice husk ash content. However, after thermal treatment at temperature 80oC for 24 hrs the tensile strength has an increase of 13%, 125%, 340% and 311%, respectively.
KEYWORDS: Rice husk ash; tapioca starch; mechanical properties; thermal treatment
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