The effect of crosslinker on mechanical and morphological properties of tropical wood material composites

Islam, Md. Saiful and Hamdan, Sinin and Rahman, Md. Rezaur and Jusoh, Ismail and Ahmed, Abu Saleh and Idrus, Mun'aim (2011) The effect of crosslinker on mechanical and morphological properties of tropical wood material composites. Materials & Design, 32 (4). pp. 2221-2227. ISSN 0264-1275

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Abstract

In this study, wood polymer composites (WPCs) based on five kinds of selected tropical wood species, namely Jelutong (Dyera costulata), Terbulan (Endospermum diadenum), Batai (Paraserianthes moluccana), Rubber (Hevea brasiliensis), and Pulai (Alstonia pneumatophora), were impregnated with methyl methacrylate (MMA) and hexamethylene diisocyanate (HMDIC) monomers mixture in the ratio of 1:1 for composite manufacturing. All these tropical wood reacted with hexamethylene diisocyanate and crosslinked with MMA which enhanced the hydrophobic (restrained water) nature of wood. The vacuum-pressure method was used to impregnate the samples with monomer mixture. The monomer mixture loading achievable was found to be dependent on the properties of wood species. Low loading was observed for the high density wood species. Mechanical strength of fabricated wood polymer composites (WPCs) in term of modulus of elasticity (MOE) and modulus of rupture (MOR) were found to be significantly improved. The wood–polymer interaction was confirmed by Fourier transform infrared (FTIR) spectroscopy. Morphological properties of raw wood and WPC samples were evaluated by scanning electron microscopy (SEM) and XRD analysis and an improvement in morphological properties was also observed for WPC.

Item Type: Article
Uncontrolled Keywords: E. Mechanical; G. Scanning electron microscopy; G. X-ray analysis, 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 Resource Science and Technology
Depositing User: Karen Kornalius
Date Deposited: 08 May 2014 07:14
Last Modified: 23 Jul 2015 05:58
URI: http://ir.unimas.my/id/eprint/2375

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