Study Of The Thermal Properties Of Chitosan Film

Harlina, Ngah (2009) Study Of The Thermal Properties Of Chitosan Film. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Chitosan [<(1-4)-2 amino-2-deoxy-d-glucose], the natural polyaminosaccharide derived from N-deacetylation of chitin [<(1-4)-2 acetamide-2-deoxy-d-glucose], has recently received a lot of attention due to its huge potential in various fields of application such as water treatment, pulp and paper, biomedical devices and therapies, cosmetics, membrane technology and biotechnology and food applications. The purpose of this study was to determine the thermal and optical properties of chitosan films and chitosan-zeolite composite films by analytical and universal testing instrument such Fourier Transform Infrared Spectroscopy (FT-iR). Other than that, a Direct Current (DC) conductivity measurement test was also conducted at five different temperatures and applied voltage in the range of 0.5 V to 12 V to investigate the ion conductivity. Chitosan films was prepared by blending chitosan powder from Aldrich Chemical Co. in 50% acetic acid concentration, are then dried at room temperature by using the glass casting technique and left for a week. The effect of Zeolite 5A catalyst presence in the chitosan film was evaluated via fabrication of the chitosan-zeolite composite films, that prepared by adding of 0.25 g, 0.5 g, 0.75 g and 1.0 g of Zeolite 5A catalyst in chitosan powder before were blended. FT-iR scanning in wave number range from 4000 cm-1 to 400 cm-1 had detected some changes in chemical structure and bonding of the chitosan as the zeolite was added to the film. The increases of the zeolite content in the chitosan film also had increased the ion conductivity as can be observed in DC conductivity measurement.

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