Effect of PVA-co-MMA Copolymer on the Physical, Mechanical and Thermal Properties of Tropical Wood Materials

Md. Saiful, Islam and Sinin, Hamdan and Mansor B., Ahmad and Mahbub, Hasan and Azman, Hassan and M. K. Mohamad, Haafiz and M., Jawaid (2014) Effect of PVA-co-MMA Copolymer on the Physical, Mechanical and Thermal Properties of Tropical Wood Materials. Advances in Materials Science and Engineering, 2014. ISSN 1687-8442

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Abstract

The present study demonstrates the effect of copolymer on the physical, mechanical and thermal properties of tropical wood and wood polymer composites (WPC). Mixed monomers of methyl methacrylate (MMA) and polyvinyl alcohol (PVA) were effectively impregnated into the cellular structure of several types of tropical wood, which then underwent a catalyst-thermal process to polymerize and form WPC. The manufacturing of WPC was confirmed through fouirer tranform infared (FT-IR) spectroscopy and scanning electron microscopic (SEM) analysis. The SEM observation showed that polymer converted from monomers filled up wood cell cavities and tightly interacted with wood matrix. The X-Ray diffraction results reveal that the degree of crystallnity was significantly improved upon impregnation with PVA-co-MMA copolymer. The modulus of elasticity (MOE) and compressive modulus were found to be significantly higher after treatment with MMA/PVA indicating improvement of mechanical properties of the wood samples. In addition, the modified WPC had lower water absorption compared to their corresponding raw samples. It is intersting to note that thermalgravimetric (TGA) analysis shows an extensive improvement in thermal properties of WPC.

Item Type: Article
Uncontrolled Keywords: PVA-co-MMA Copolymer; Tropical Wood Composite; FTIR; XRD; SEM; Mechanical Properties, unimas, university, universiti, Borneo, Malaysia, Sarawak, Kuching, Samarahan, ipta, education, research, Universiti Malaysia Sarawak
Subjects: T Technology > TJ Mechanical engineering and machinery
Divisions: Academic Faculties, Institutes and Centres > Faculty of Engineering
Depositing User: Karen Kornalius
Date Deposited: 20 Oct 2015 01:49
Last Modified: 20 Oct 2015 01:49
URI: http://ir.unimas.my/id/eprint/9184

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