Fabrication system for surface modification of polystyrene beads by UV/Ozone treatment and its characterization

Ahmad Nor, Yusilawati and Mel, Maizirwan and Sopyan, Iis and Mohd. Salleh, Hamzah and Ng, K.H. and Wong, Chiow San (2009) Fabrication system for surface modification of polystyrene beads by UV/Ozone treatment and its characterization. In: Advances in Materials and Processing Technologies, 26th-29th October 2009, Kuala Lumpur. (Unpublished)

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Abstract

It is known that polystyrene must be chemically modified to make its surface enable to covalent cross-linking with protein. The aim of this study was to develop UV/Ozone treatment system and investigate the effects of treatment system on surface of polystyrene beads. The surface of polystyrene beads with an average size of 150μm was modified by UV/ozone treatment with or without distilled water at the same treatment time, ozone flow-rate and UV intensity. The treated beads were analyzed by ATR-FTIR to determine the introduction of carbonyl (-C=O) and carboxylic (COOH) onto the polystyrene surface. Sample characterization was also carried out by SEM, EDX and hydrophilicity test. The results show that there was an increased in hydrophilicity to the surface of polystyrene beads after the UV/ozone treatment and the introduction of carbonyl, carboxyl and hydroxyl groups on the polystyrene beads surface has been confirmed by ATR-FTIR result. This UV/Ozone treatment system for surfaces modification of PS beads was demonstrated to be effective for treatment of polystyrene bead and the best result has been obtained by UV/Ozone modification without distilled water.

Item Type:	Conference or Workshop Item (Plenary Papers)
Additional Information:	4085/6302
Uncontrolled Keywords:	Fabrication, UV/Ozone System, Polymer, Polystyrene, Modification
Subjects:	T Technology > TP Chemical technology > TP1080 Polymers, plastics and their manufacture T Technology > TP Chemical technology > TP155 Chemical engineering T Technology > TP Chemical technology > TP248.13 Biotechnology
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering Kulliyyah of Engineering > Department of Biotechnology Engineering
Depositing User:	Dr Maizirwan Mel
Date Deposited:	24 Oct 2011 09:11
Last Modified:	14 Jan 2019 09:59
URI:	http://irep.iium.edu.my/id/eprint/6302

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