Unformatted text preview: olyethylene graft-maleic anhydride as compatibilizer were investigated. The compatibilizer is the additive that added to a blend of immiscible polymers to modify their interfaces and stabilizes the blend. Moreover, water hyacinth fibers act as fillers which are added to a polymer matrix in a relatively large amount to modify its properties and to reduce the price of the resulting compound . The composite with filler loading at 20 phr has the highest tensile strength while filler loading at 25 phr decrease tensile strength. Besides that, the presence of compatibilizer helped increase the tensile strength and Young’s modulus for the same filler loading. The molar sorption decreased with the increasing of filler loading and the lowest molar sorption is 0.314 which is the composites with compatibilizer and the filler loading at 25 phr. The SEM morphology show that presence of compatibilizer improved in the filler matrix-interfacial bonding, better dispersion of the filler in the blend composites. 231 23rd-25th June 2010 3rd ICYC 2010 Universiti Sains Malaysia POLY-P8 GENERATION OF PROTONIC ACID SITES FROM HYDROGEN OVER TUNGSTEN-ZIRCONIA CATALYST
1 Ainul Hakimah Karim, Sugeng Triwahyono, Aishah Abdul Jalil, Nurrulhidayah Ahmad Fadzlillah, 1 1 Nurun Najwa Ruslan and Sharifah Najiha Timmiati 1* 2 1 1 Ibnu Sina Institute for Fundamental Science Studies, Universiti Teknologi Malaysia, 81310 UTM Skudai, Johor, Malaysia 2 Faculty of Chemical and Natural Resources Engine ering, Universiti Teknologi Malaysia, 81310 UTM Skudai, Johor, Malaysia E-mail: [email protected] Generation of protonic acid sites from hydrogen over tungsten -zirconia catalyst with different tungsten loading (5, 10, 13, 15, 20 wt %) was studied. The WO3-ZrO2 catalysts were prepared by impregnation of Zr(OH)4 with ammonium metatungstate complex solution, followed by calcination at 1093 K in air for 3 h. Protonic acid sites were generated with a concomitant decrease of Lewis acid sites by heating an d contact with hydrogen. A maximum conversion of Lewis acid sites to the protonic acid sites was found on the sample with 13 wt % tungsten loading. This phenomenon is caused by the presence of monolayer dispersion of tungsten on the zirconia support. POLY-P9 THE USE OF HYDROXYLIZED CASTOR OIL AND METHYLENE DIISOCYANATE IN POLYURETHANE MEMBRANE PREPARATION
1 Marlina, Hizir Sofyan and Sitti Saleha 2 1 2 Chemistry Department, Sy...
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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