The Influence of UV-Accelerated Aging Process on Industrial Waste Containing EPDM

Recycling

RosmaryNichele Brandalise¹  Alexandra Masiero¹  Aline Zanchet²  FabiulaDanielli Bastos de Sousa³ 

[1] Center of Exact Sciences and Technology, Department of Physics and Chemistry, Universidade de Caxias do Sul, Rua Francisco Getúlio Vargas, 1130, Caxias do Sul—RS 95070-560, Brazil;Polytechnic School of Civil Engineering, IMED, Rua Senador Pinheiro 304, Passo Fundo—RS CEP-99070-220, Brazil;Technology Development Center, Universidade Federal de Pelotas, Rua Gomes Carneiro, 1, Pelotas—RS 96010-610, Brazil;

关键词: EPDM;    UV-accelerated aging;    industrial residue;    elastomeric blends;    mechanical properties;    vulcanization characteristics;   

DOI  :  10.3390/recycling4020025

来源: DOAJ

【 摘 要 】

One of the most efficient ways to recycle elastomeric residues from industrial processes is to incorporate them into compositions. The study of these new compositions is interesting in terms of reducing cost, the consumption of raw materials, and the generation of new waste, working towards sustainable development. Thus, this research aimed to produce and characterize elastomeric blends containing one phase comprised of ethylene−propylene−diene monomer rubber (EPDM) industrial waste aged by the action of ultraviolet radiation (UV) in a UV chamber, and the other comprised of raw EPDM, containing different concentrations of residue. Therefore, the mechanical properties and the vulcanization characteristics of the blends containing different concentrations of EPDM residue—aged and un-aged—were analyzed and compared to the properties of a standard formulation (Control). The results showed that the aging of the waste for a period of 156 h did not trigger a severe degradation process. Additionally, its reuse into new compositions promoted improvements of the studied mechanical properties without compromising the vulcanization characteristics due to the higher molecular stiffness of the samples.

【 授权许可】

Unknown