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Study of coffee grounds oil action in PVC matrix exposed to gamma radiation: comparison of systems in film and specimen forms

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dc.contributor.author Silva, Lindomar Avelino da
dc.contributor.author Almeida, Tainá Medeiros Bastos de
dc.contributor.author Teixeira, Rebeca Valgueiro
dc.contributor.author Araújo, Elmo Silvano de
dc.contributor.author Aquino, Kátia Aparecida da Silva
dc.date.accessioned 2022-07-13T20:13:21Z
dc.date.available 2022-07-13T20:13:21Z
dc.date.issued 2017
dc.identifier.citation SILVA, L. A. et al. Study of coffee grounds oil action in PVC matrix exposed to gamma radiation: comparison of systems in film and specimen forms. Materials Research, São Carlos, v. 20, n. suppl.2, p. 709-715, 2017. pt_BR
dc.identifier.issn 1980-5373
dc.identifier.uri http://dx.doi.org/10.1590/1980-5373-MR-2016-0985 pt_BR
dc.identifier.uri http://www.sbicafe.ufv.br/handle/123456789/13579
dc.description.abstract The poly (vinyl chloride), PVC, undergoes changes in its physicochemical properties when it is exposed to gamma radiation. Thus, the radiolytic stabilization of PVC is one way for obtain a material with radiation resistance. In this work, we studied the coffee grounds oil as PVC radiolytic protection in two systems forms: PVC film and PVC specimen. The systems were irradiated at sterilization dose of medical devices and viscosity measurements were performed. According to viscosity assays of PVC films, there was a 67% protection in polymer matrix promoted by the oil. On the other hand, the mean viscosity molar mass (Mv) of PVC specimens increased about 13%, indicating predominance of crosslinking effect, however samples containing the oil showed no Mv significant changes. Therefore, the oil can be considered a PVC radio stabilizing substance and open a way for use of sustainable additive in PVC industry. pt_BR
dc.format pdf pt_BR
dc.language.iso en pt_BR
dc.publisher ABM, ABC, ABPol pt_BR
dc.relation.ispartofseries Materials Research;v.20, n.suppl.2, 2017
dc.rights Open Access pt_BR
dc.subject Sustainability pt_BR
dc.subject Additive pt_BR
dc.subject Stabilization pt_BR
dc.subject Polymer pt_BR
dc.subject.classification Cafeicultura::Resíduos e subprodutos do café pt_BR
dc.title Study of coffee grounds oil action in PVC matrix exposed to gamma radiation: comparison of systems in film and specimen forms pt_BR
dc.type Artigo pt_BR

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