عنوان مقاله [English]
In this study, the effect of nanoclay particles content on practical properties of wood polymer composite made of polypropylene and wood flour were investigated. For this aim, wood flour were compund with polypropylene at 50% by weight, and nanoclay with 0, 1, 2 and 3% respectivly, also 2% of MAPP was used as the coupling agent in all formulatins. Then samples were made in injection molding, and physical, mechanical, viscoelastic and flammability properties were tested according to ASTM standard. Results indicated flexural strength, tensile strength, flexural modulus, tensile modulus, elongation, storage modulus, loss modulus, char residue and time to ignition incraesd with nanoclay loading. However impact strength, burning rate, heat release rate, total smoke production, water absorption and thickness swelling were decreased by increasing of nanoclay particles content. Also the morphological study with XRD and TEM showed that nanoclay distributed as intercalation structure in polymer matrix, and the d-spacing of layers were increased with increasing of nanoclay particles content.