Com foam final properties are largely affected by its

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Unformatted text preview: ics of the foam with its mechanical properties. 228 3rd ICYC 2010 Universiti Sains Malaysia 23rd-25th June 2010 POSTER PRESENTATION (POLYMER) POLY-P1 IMPROVED PVC FILMS PHOTOSTABILITY IN PRESENCE OF SOME DIORGANOTIN(IV) COMPLEXES Hadeel Adil and Emad Yousif Department of Chemistry, College of Science, Al -Nahrain University, Baghdad, Iraq E-mail: [email protected] The photostabilization of poly(vinyl chloride) (PVC) films by Some Diorganotin(IV) Complexes of benzamidoacetic acid. The PVC films containing concentration of complexes 0.5 % by weight were produced by the same casting method from THF solvent. The photostabilization activities of these compounds were determined by monitoring the carbonyl, polyene and hydroxyl indices with irradiation time. The changes in viscosity average molecular weight of PVC with irradiation time were also tracked (using THF as a solvent). According to the experimental results obtained, several mechanisms were suggested depending on the structure of the additive. HCl scavenging, UV absorption, peroxide decomposer and radical scavenger for photostabilizer additives mechanisms were suggested. POLY-P2 PREPARATION AND PROPERTIES OF COMPOSITES FROM HIGH – DENSITY POLYETHYLENE AND KENAF CORE FILLERS A. Ashraf Rohaniza and M.T. Razaina School of Materiasl and Mineral Resources, Engineering Campus, Universiti Sains Malaysia, 14300 Nibong Tebal, Pulau Pinang, Malaysia E-mail: [email protected] Wood – plastic composites have been used in applications such as nonstructural or semi - structural building products. The objective of this res earch was to investigate the potential of kenaf core fillers as fillers in making wood – plastic composites. Effect of filler loading, incorporation of coupling agent and water absorption on the mechanical properties of composites made from kenaf core fill ers and recycled high density polyethylene (HDPE) were investigated. Kenaf core fillers were compounded with recycled HDPE by using twin-screw extruder. Filler weight fractions were 0, 20, 40 and 60 %. Maleated Polyethylene (MAPE) as...
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