EPDM Sentetik Kauu26287unun Gerilme Gev26351emesi Davran263052635126305na Sertli26287in Etkisinin Deneysel 26304ncelenmesi

In this works the effects of the hardness on the stress relaxation behaviour of EPDM rubber at the room temperature were experimentally investigated. EPDM rubber show outstanding heat ozone and weather resistance and has excellent electrical properties. Therefore this rubber as an elastomer is an engineering material that has wide range of applications in industry such as door and window seals radiator garden and heating hoses tubing washers belts electrical insulation roofing membrane and rubber mechanical goods. In the study stress relaxation experiments were carried out for different loading programs by using EPDM specimens having different hardnesses. In addition for the loading programs that were implemented it is shown that for the EPDM rubbers tested the stress relaxation curves obtained at different stretch ratios may be represented by a single representative curve for the specimens having the same hardnesses.