Characterization of gamma irradiated polypropylene with pro degradable additive

Compound of polypropylene that contains 1,5 % pro degradable additive D₂W has been prepared using a single screw extruder. The obtained blend was ground and injected in the form of standard specimens for tensile testing. The samples thus manufactured were irradiated with different dosage of gamma radiation up to 476 kGy. The physical, mechanical, and rheological characteristics such as tensile strength, relative elongation and melt flow index were determined in accordance with the radiation dosage applied. The effect of the gamma radiation on the structure of the oxo degradable polypropylene was examined by IR spectroscopy and X-ray diffraction analysis.Keywords: polypropylene, gamma irradiated, pro-degradant.