Citation & Copyright (to be inserted by Humphrey) Thermal and Dynamic-mechanical Properties of Wood-PVC Composites

wood-PVC composites The influence of maleation on thermal and dynamic-mechanical properties of wood-PVC composites was investigated in this study. Experimental results indicated that maleation had a significant influence on most of the properties for wood-PVC composites. Storage modulus (E’), loss modulus (E”), and complex modulus (E*) of resultant wood-PVC composites were related to the retention levels and graft rate of maleated polypropylene (MAPP). However, tanδ was independent of MAPP retention and graft rate. Interfacial bonding strength increased with the increase of E ’ and E * at low MAPP retention, but was not so sensitive to these moduli at high retention levels. Compared with PVC, wood, and wood-PVC composites without MAPP, maleated wood-PVC composites had significant shifts in most DMA, TGA, and DSC spectra. Also, there was a difference between E-43 and G-3015 on the thermal and dynamic-mechanical properties. All these were due to maleation and the interfacial structure in wood-PVC composites