{"title":"The stabilization effects of graphene oxide coupled with rosemary extract","authors":"Traian Zaharescu , Ioana Cîrstea , Aurora Crăciun , Radu Mirea","doi":"10.1016/j.radphyschem.2025.112601","DOIUrl":null,"url":null,"abstract":"<div><div>The stabilization efficiencies produced on ethylene-propylene diene terpolymer (EPDM) by graphene oxide (GO) and rosemary extract (RM) are studied by nonisothermal chemiluminescence. The obtained eco-materials present an evident improvement of durability under the accelerated degradation occurred by γ-exposure. The complementary contributions achieved by these additives in respect with the effects of their couple are discussed by means of the comparison of the onset oxidation temperatures characterizing the potential contributions of GO and RM by scavenging of free radicals. The oxidation resistance is evaluated by means of the values of activation energy, which is required for the delay of structural degradation. The values of activation energies increase by the addition of protectors and they maintain higher degree of stabilization in the irradiated polymers by means of the radiochemical crosslinking of polymer substrate.</div></div>","PeriodicalId":20861,"journal":{"name":"Radiation Physics and Chemistry","volume":"231 ","pages":"Article 112601"},"PeriodicalIF":2.8000,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Radiation Physics and Chemistry","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0969806X25000933","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
The stabilization efficiencies produced on ethylene-propylene diene terpolymer (EPDM) by graphene oxide (GO) and rosemary extract (RM) are studied by nonisothermal chemiluminescence. The obtained eco-materials present an evident improvement of durability under the accelerated degradation occurred by γ-exposure. The complementary contributions achieved by these additives in respect with the effects of their couple are discussed by means of the comparison of the onset oxidation temperatures characterizing the potential contributions of GO and RM by scavenging of free radicals. The oxidation resistance is evaluated by means of the values of activation energy, which is required for the delay of structural degradation. The values of activation energies increase by the addition of protectors and they maintain higher degree of stabilization in the irradiated polymers by means of the radiochemical crosslinking of polymer substrate.
期刊介绍：
Radiation Physics and Chemistry is a multidisciplinary journal that provides a medium for publication of substantial and original papers, reviews, and short communications which focus on research and developments involving ionizing radiation in radiation physics, radiation chemistry and radiation processing.
The journal aims to publish papers with significance to an international audience, containing substantial novelty and scientific impact. The Editors reserve the rights to reject, with or without external review, papers that do not meet these criteria. This could include papers that are very similar to previous publications, only with changed target substrates, employed materials, analyzed sites and experimental methods, report results without presenting new insights and/or hypothesis testing, or do not focus on the radiation effects.
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