Influence of gamma irradiation on waste poly(propylene) composites containing talc and high crystallinity poly(propylene)

摘要

Commercial polyolefin, such as poly(propylene), are widely used because of their easy processing and their excellent mechanical and thermal properties. Although their recycling is well established, the mechanical and thermal properties of the recycled waste poly(propylene)(WPP) are normally lower than those of the virgin material. The introduction of talc can improve the toughness, without compromising the processability and recycling capabilities. However, the thermal properties of these blends should be assessed to limit degradation during recycling. The effect of gamma radiation on the thermal and mechanical properties of WPP/High Crystallinity Poly(propylene)/Talc was studied. TGA, DSC, and electrical conductivity performed the characterization of WPP composites. Mechanical properties and electrical conductivity of the composites were evaluated. The results showed that the addition of Talc to WPP was found to improve the thermal stability of WPP composites. The compatibilisation of the blends using gamma radiation resulted decrease the weight loss with increasing the temperature.