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Unformatted text preview: laysia Perlis, 02600, Jejawi, Perlis, Malaysia E-mail: [email protected] The usage of chitosan as a filler on thermal properties of polypropylene composites was investi gated. The study on thermal properties of composites was carried out via thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC), respectively. Two types of chitosan were used in this study, untreated and treated. Chitosan treatment wa s conducted through reaction with 3aminopropyltriethoxysilane (3-APE), in order to obtain chitosan with less hydrophilic. The results show that thermal stability and transition glass temperature (Tg) of composites improved by the increasing of filler content, however degree of crystallinity ( Xc) and activation energy (Ea) decreased and melting temperature (Tm) not changed. The presence of 3 -APE has improved thermal properties, as results the thermal stability, Tg, Xc and Ea of treated composites were higher than untreated ones, but Tm not changed significantly. FTIR study revealed that the decrease in peak intensity as well as the shift to -1 -1 lower frequency for 1673 to 1602 cm and the increase absorbance for 1420 to 1458 cm as evidence that silane has been bonded to chitosan and enhanced interfacial adhesion between chitosan and polypropylene matrix polymer. POLY-O6 PREPARATION AND PROPERTIES OF BIODEGRADABLE POLYMER FILM BASED ON POLYVINYL ALCOHOL AND RAMBUTAN WASTE FLOUR Z.X. Ooi, H Ismail, A Abu Bakar and N A Aziz School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, Nibong Tebal, 14300 Pulau Pinang, Malaysia E-mail: [email protected] In the present study, polyvinyl alcohol (PVOH) and rambutan waste flour (RWF) containing different blend ratio of rambutan waste flour were prepared using solution casting method. The solution cast films were dried, followed by tensile testing. The tensile strength and elongation at break decreased with increase in rambutan waste flour content. However, the tensile modulus was increased with increasing the rambutan waste flour content. The morphology of the PVOH/rambutan waste f...
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This note was uploaded on 02/17/2011 for the course CHEMISTRY 101 taught by Professor Csr during the Spring '11 term at University of Louisville.
- Spring '11