A novel method for manufacturing of wood flour/PP composites with better fire retardancy and mechanical properties

Abstract

This study was conducted to investigate the effects of applying methods and<br />amount of ammonium polyphosphate (0, 2 and 4 wt%) on fire retardancy and<br />mechanical properties of wood flour/polypropylene composites. The results<br />showed that addition of fire retardant improved the mechanical properties such as<br />tensile and flexural strengths and fire retardancy of composites. But by increasing<br />of fire retardant impact strength decreased. The scanning electron microscopy<br />observation on the fracture surface of the composites indicated that fire retardant<br />had a uniform dispersion in the wood flour/PP composites. The observations<br />showed that saturation of wood flour with fire retardant had a positive effect on<br />mechanical properties and fire retardancy.