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14. Modification in Mechanical, Thermal and Antifungal
Properties of Mango Wood through Impregnation Polymerization of Methyl
Methacrylate
M.G.H.Zaidi a, N.Bhullar a, K. Varshney a*,
V.Agarwal a and P.L.Sah b
a
Department Of Chemistry, b Department of Mechanical
Engineering, G.B.Pant University of Agriculture & Technology Pant
Nagar Uttaranchal 263 145 .India
, E-mail:
mgh_Zaidi@yahoo.com
*Author for correspondence- Present Address: IFSC Oils & Fats India Pvt
Ltd, Gurgaon, India, 122001.
Abstract:
A series of
wood polymethyl methacrylate composites (WPCs) was synthesized through
impregnation polymerization of methyl methacrylate (MMA) into mango
wood in methanol (20-60%, v/v) in presence of 2, 2-azobisisobutyronitrile
(1.0% w/v) at 75 ± 10C for two hours. This has afforded
corresponding WPCs with polymethyl methacrylate loading (%) in the
range of 15.5-34.20. Loading of PMMA into wood was ascertained through
UV-Visible, FT-IR spectra and electron microscopy. With PMMA loading,
impact, compression, static bending strengths and resistance against
thermo oxidation of WPCs were in general increased. Resistance of WPCs
against a decay fungi Coriolous Versicolor was evaluated as the
release of protein and reducing sugar contents and in cellulolytic (FPase,
CMCase) and xylanolytic enzyme activities under incubation up to 168
hrs. PMMA loading has enhanced the resistance of wood against decay
fungus due to decrease in release of protein and reducing sugar
contents and cellulolytic (FPase, CMCase) and xylanolytic enzyme
activities in WPCs.
Key words:
Wood polymer composites Methyl methacrylate, Mechanical properties,
Thermo oxidative stability, Fungal degradation.
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