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