In situ polymerized wood polymer composite: effect of additives and nanoclay on the thermal, mechanical properties

AUTOR(ES)

Devi, Rashmi R, Maji, Tarun K

FONTE

Mat. Res.

DATA DE PUBLICAÇÃO

14/05/2013

RESUMO

This study concerns the preparation and characterization of wood polymer nanocomposites based on impregnation of styrene acrylonitrile co-polymer-nanoclay intercalating system in presence of glycidyl methacrylate (GMA), a cross linking agent, and vinyl trichloro silane (VTCS) as additives into Simul (Bombex ceiba, L.), a soft wood. The effect of nanoclay and VTCS on the properties of the resultant wood polymer nanocomposites (WPNC) has been evaluated. FTIR spectroscopy shows the interaction among wood, polymers, GMA, nanoclay and VTCS. The penetration of polymer and nanoclay into the wood cell wall is supported by SEM study. The distribution of nanoclay in the SAN polymer matrix present within the wood cell wall has been evidenced by TEM study. TGA results show an improvement in the thermostability of the resultant composites. The inclusion of VTCS enhances the self extinguishing behaviour of the WPNC as revealed by limiting oxygen index (LOI) test. Due to treatment, the resultant WPNC exhibits an improvement in all the properties like water repellancy, dimensional stability, hardness, flexural, tensile and thermal stability compared to untreated wood.

Documentos Relacionados

• Wood-polymer composite: physical and mechanical properties of some wood species impregnated with styrene and methyl methacrylate
• Effect of PANI on Thermal, Mechanical and Electromagnetic Properties of HDPE/LLDPE/PANI Composites
• Microwave Sintering of Aluminum-ZrB2 Composite: Focusing on Microstructure and Mechanical Properties
• Studies on the Thermal, Mechanical and Chemical Resistance Properties of Natural Resource Derived Polymers
• Mechanical, thermal, and barrier properties of methylcellulose/cellulose nanocrystals nanocomposites