Investigation of Mechanical and Thermal Properties of Waste EPDM and Polypropylene Mixtures

Abstract

Automotive sector was considered as a sector since polypropylene was often used with ethylene propylene diene monomer (EPDM) as a mixture. EPDM rubber is characterized by wide range of applications. The aim of this study is to investigate the reusability of EPDM wastes. 10, 20, 30, 40 and 50 wt% ground EPDM powders were mixed with polypropylene (PP) matrix by extrusion method. Test specimens were prepared out of those mixtures by injection moulding. Tensile, the Izod impact, hardness, density, heat deflection, and the Vicat softening point tests were performed on the specimens. Tensile strength, force at break, E modulus, hardness, heat deflection and the Vicat softening temperature values decreased with the increasing ground EPDM content in polypropylene matrix. However, the Izod impact and elongation at break values increased.

Rheological study of EPDM/silicone rubber blends phase inversion and characterization of resultant mechanical and thermal properties

“…The use of EPDM as an electrical insulator has the limiting factor in terms of low dimensional stability when operating in high‐temperature services. For example, Demirer et al developed blends of Polypropylene and EPDM, which in the 1:1 proportion obtained a drop of 42% in the Vicat softening temperature compared to the neat PP 31 . In this sense, the addition of silicone has as one of the primary objectives the preparation of blends with high dimensional thermal stability.…”

“…For example, Demirer et al developed blends of Polypropylene and EPDM, which in the 1:1 proportion obtained a drop of 42% in the Vicat softening temperature compared to the neat PP. 31 In this sense, the addition of silicone has as one of the primary objectives the preparation of blends with high dimensional thermal stability. Figure 5 shows the evolution of the Vicat softening temperature for ES blends.…”