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Preparation and properties of acacia sawdust/UPR composite based on recycled PET

Mosadeghzad, Z., and Ahmad, I., and Daik, R., and Ramli, A., and Jalaludin, Z., (2009) Preparation and properties of acacia sawdust/UPR composite based on recycled PET. Malaysian Polymer Journal, 4 (1). pp. 30-41. ISSN 18237789

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Official URL: http://www.fkkksa.utm.my/mpj/images/090401_4ishak.pdf

Affiliations

Universiti Kebangsaan Malaysia. Faculty of Science and Technology. School of Chemical Sciences and Food Technology
Universiti Kebangsaan Malaysia. Faculty of Science and Technology. School of Chemical Sciences and Food Technology
Universiti Teknologi Petronas. Dept. of Chemical Engineering
Universiti Teknologi Petronas. Dept. of Chemical Engineering
Forest Research Institute Malaysia

Abstract

Polyethylene therephthalate (PET) waste bottles had been depolymerized by glycolysis and reduced to its monomer and dimer. The glycolysed product was used to produce unsaturated polyester resin (UPR). DSC and FTIR analysis were conducted on the resin and the glycolysed product. The resin was then mixed with sawdust (acacia) to produce the sawdust/UPR composite based on recycled PET. The effect of surface treatment and filler loading on mechanical properties of the composites were studied. The results showed that the modulus of both tensile and flexural increased with increasing filler contents whereas the strength decreased. This was overcome by treating the sawdust fillers with 10% sodium hydroxide (NaOH). The tensile, flexural, hardness and water absorption tests showed that the alkali treatment has enhanced the adhesion between the sawdust and the UPR matrix.

Item Type:Journal
Additional Information:The authors are grateful to the Ministry of Science, Technology and Innovation (MOSTI), Ministry of Higher Education (MOHE) and Universiti Kebangsaan Malaysia for the RMK-9 grant that has made this research work possible. The authors would like to thank Forest Research Institute Malaysia (FRIM) for supplying the acacia sawdust.
Keywords:PET recycling, composite, UPR resin, natural filler, alkali treatment
Subjects:Q Science, Computer Science
T Technology, Engineering
ID Code:6153

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