Abstract:
Prepares a composite material from polyvinyl alcohol and pineapple leaf powder (PVA-PALP). PALP was used after surface modification by stearic acid and maleic anhydride polypropylene (MAH-PP). Gamma irradiation from 0-75 kGy of the composites were put to mechanical, chemical and thermal propertie tests including tensile strength, tensile modulus, elongation at break and tear resistance, water absorption, solvent swelling, melting temperature and photomicrographs. The results showed that gamma radiation played an important role for improving the mechanical and chemical properties of PVA-PALP in this studied. The tensile strength, tensile modulus and tear properties of PVA-PALP matrix resin were markedly improved with increasing radiation dose up to 25 kGy. PVA-PALP composites improved with 5 percent stearic acid gave good tear strength and high heat resistance