Pp+epdm
In order to increase impact strength and flexibility of polypropylene, it is blended with thermoplastic elastomers (such as EPDM}. Alloy flexibility is inversely related to hardness. When hardness reduces, flexibility and impact strength increases. Nirumand Polymer Co. produces PP/vulcanized EPDM alloys (TPV} in wide range of hardness from 65 shore A to 57 shore D. this material is used in automotive parts and other industrial parts in various hardness such as bumper and sealing.