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Influence of compounding methods of poly(vinyl) alcohol / sago pith waste biocomposites : mechanical and water absorption properties

Wan Abdul Rahman, Wan Aizan and Toh, W. Y. and Lai, J. C. (2011) Influence of compounding methods of poly(vinyl) alcohol / sago pith waste biocomposites : mechanical and water absorption properties. In: Malaysia Polymer International Conference (MPIC 2009) , 2009, Hotel Palm Garden & IOI Resort, Putrajaya.

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Official URL: http://journalarticle.ukm.my/2546/1/08_W.Y._Toh.pd...

Abstract

Several methods of incorporating sago pith waste (SPW) into poly(vinyl alcohol) (PVA) had been conducted: (i) dry blending (PVA/SPW/G), (ii) blending of SPW and pre-plasticized PVA (pPVA/SPW/G) and (iii) blending of pre-plasticized of both PVA and SPW (pPVA/pSPW). The effect of the compounding method on the mechanical and water absorption properties were investigated. The addition of SPW into PVA greatly reduced the tensile strength and elongation at break. The tensile strength and elongation at break of PVA/SPW composites with identical geometry during compounding stage (powder/powder and pellet/pellet), which were PVA/SPW/G and pPVA/pSPW yielded the highest value. The percentage of water absorbed by PVA/SPW/G (without pre-plasticization) was the highest, followed by pPVA/pSPW and pPVA/SPW/G.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Water absorption, Mechanical properties
Subjects:Q Science > Q Science (General)
Divisions:Chemical and Natural Resources Engineering (Formerly known)
ID Code:15317
Deposited By: Mrs Liza Porijo
Deposited On:26 Sep 2011 04:44
Last Modified:12 Jun 2017 03:33

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