Vulcanized residues of ethylene–propylene–diene monomer rubber (EPDM) from expanded profiles trims, called EPDM-r, were treated to remove the paraffinic oil and then devulcanized by microwaves at different exposure times (0, 2, 3 and 4 min). Elastomeric formulations of EPDM-r compound/raw EPDM compound containing 67 wt% of recycled phase were produced, and the characteristics of the vulcanization process, mechanical and dynamic-mechanical properties, morphology and accelerated aging of the blends were analyzed. The promising results showed that it is possible to obtain new rubber compositions containing 67 wt% of EPDM-r with similar—or even higher—mechanical properties than the Reference sample (without EPDM-r), pointing out to the potential use of devulcanized EPDM-r in several applications, as a possible solution to the destination of these materials, aiming at the sustainable development.

中文翻译：

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不含石蜡油的脱硫EPDM在共混物中的生产，可作为汽车工业残留物的潜在用途

对膨胀型饰条中被称为EPDM-r的乙烯-丙烯-二烯单体橡胶（EPDM）的硫化残留物进行处理，以去除石蜡油，然后在不同的暴露时间（0、2、3和4分钟）通过微波进行脱硫。制备了包含67 wt％循环相的EPDM-r化合物/原始EPDM化合物的弹性体配方，并分析了硫化过程的特性，机械和动态机械性能，混合物的形态和加速老化。令人鼓舞的结果表明，有可能获得含有67 wt％EPDM-r的新橡胶组合物，其力学性能与参考样品（不含EPDM-r）相似或什至更高，指出了硫化EPDM的潜在用途-r在几个应用程序中，