Introduction to the Study of Mechanical Properties of Terpolymer PP/EPDM Mixtures

Thermoplastic elastomers (TPEs), based in PP (Polypropylene) / EPDM (Ethylene Propylene Diene Monomer) have as purpose improving resistance and impact, aiming to a more comprehensive use automotive market, among edifications, construction packaging sectors, due their recyclability properties. is commodity, with high melting point, mechanical low density, posing balance between physical properties; addition, it shows an easy processing, at cost. In order minimize this deficiency, EPDM, impact modifier, can be used. Nevertheless, most of polymeric blends are incompatible immiscible, i.e., show mutual limited solubility cases, interfacial tension. However, there relatively tension (force which acts on transformation continuous structure dispersion) (approximately 0.3 mN.m-1), reducing the rate breakup facilitating build-up structure. This work aims study compatibility variation properties, emphasizing that many properties thermoplastic processed according conventional thermoplastics methods: herein, PP/EPDM blends, 90/10, 80/20, 70/30 50/50 were characterized to: Mechanical essays, Differential Scanning Calorimetry, Thermogravimetric Analyses, Melt Flow Index, Izod Impact Strength Dynamic Analyses.