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Properties and interactions of poly(vinyl alcohol)-sago pith waste biocomposites

Wan Abdul Rahman, Wan Aizan and Samad, A. A. and Toh, Wen Yee and Lee, Tin Sin (2011) Properties and interactions of poly(vinyl alcohol)-sago pith waste biocomposites. Journal of Composite Materials, 45 (21). pp. 2199-2209. ISSN 0021-9983

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Official URL: http://dx.doi.org/10.1177/0021998311401073


In this study, blending of poly (vinyl alcohol) (PVA) and sago pith waste (SPW) was prepared by a one-step melt extrusion. The physico-mechanical, Fourier transform-infrared (FT-IR), moisture sorption, rheological, and thermal characterization were conducted. Incorporation of PVA in SPW improved the tensile modulus, whereas the tensile strength reduced. The FT-IR analysis has shown that SPW could be introduced into the PVA network via the formation of hydrogen bonds between the PVA and SPW clusters. The interaction between PVA and SPW macromolecules has shown that there is a noticeable improvement in the water sorption ability. The rheological properties revealed that the PVA/SPW composites exhibited shear-thinning behavior and the blend viscosities increased with the rise in SPW content because of its rigid structure. Thermal analysis revealed that >50 wt% of PVA could induce greater molecular interaction between the PVA and SPW.

Item Type:Article
Uncontrolled Keywords:interaction, polyvinyl alcohol, rheology
Subjects:T Technology > TP Chemical technology
Divisions:Chemical Engineering
ID Code:29379
Deposited By: Yanti Mohd Shah
Deposited On:13 Mar 2013 02:16
Last Modified:22 Oct 2020 04:05

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