Mechanical and Thermal Analysis of Poly (Vinyl-Alcohol) and Modified Wood Dust Composites

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A study of Polymer Modified Wood Dust Nanocomposite (PMW) was done using a polymer matrix of poly (vinyl alcohol) (PVA) and Modified Wood Dust as reinforcing agent. Composite materials were prepared by effectively dispersing the wood dust within the PVA matrix via a conventional solvent casting technique. The obtained PMW materials were typically characterized by Fourier-Transformation infrared (FTIR) spectroscopy. The Thermal properties of the PWC films were investigated by means of Themogravimetric Analysis. The dispersion of modified filler in the polymer matrix was investigated by TEM analysis. The surface morphology of the uncrosslinked and crosslinked PVA nanocomposite membranes was analyzed by Tapping Mode—Atomic Force Microscopy (TM-AFM). To study the temperature dependencies of the dynamic moduli, stress relaxation, mechanical loss, and damping phenomena of the composite material, dynamic mechanical analysis (DMA) was done. The tensile behavior of the composite films was analyzed by comparing their tensile strength and their modulus of elasticity with change in filler content.