VULCANIZAÇÃO DE BORRACHA EPDM: vulcanização de um perfil de borracha EPDM (etileno propileno dieno) com compostos de diferentes densidades em túnel de ar quente

Abstract

The present paper deals with a very common situation in a rubber factory, which has as its main clients large manufacturers from all over the world. Due to the many different technologies used in the construction of several car models, the quest for perfection is untiring, so customers are increasingly demanding, and to meet these requirements, materials of different compositions such as EPDM (ethylene-propylene -diene) which is classified as a polymeric material. However, in the use of EPDM with different densities the vulcanization process becomes more complex, since a higher density material requires a higher temperature to reach the optimum degree of vulcanization, since a material with a lower density requires a lower temperature, and if the material receiving a higher temperature than required may occur the process called reversal, so the use of materials with different densities in the same product requires a temperature that meets both cases, so that the final product passes the specified tests.