Effect of different degradation types on properties of plastic waste obtained from espresso coffee capsules

dc.contributor.authorde Bomfim, Anne Shayene Campos [UNESP]
dc.contributor.authorMaciel, Maísa Milanez Ávila Dias [UNESP]
dc.contributor.authorVoorwald, Herman Jacobus Cornelis [UNESP]
dc.contributor.authorBenini, Kelly Cristina Coelho de Carvalho [UNESP]
dc.contributor.authorde Oliveira, Daniel Magalhães [UNESP]
dc.contributor.authorCioffi, Maria Odila Hilário [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2019-10-06T16:05:17Z
dc.date.available2019-10-06T16:05:17Z
dc.date.issued2019-01-01
dc.description.abstractIn terms of large use of plastic products, a necessity exists to minimize effects of the waste produced on environment by recycling, reuse and application in new products. In Brazil, the espresso coffee capsules are an emerging plastic waste, representing 0.9% of the coffee consumed in 2017. Therefore, Nescafé Dolce Gusto espresso coffee capsules were chosen in order to understand the polypropylene stabilization and degradation initiators with the purpose of recycling by applying in a composite material, as home composting product. In this context, the plastic capsule wastes were exposed to chemical, thermal, accelerated weathering (ultraviolet radiation + humidity) and natural weathering in order to analyze the influence of exposure and possibilities of a real application in a composting environment. Masses of the samples were monitored before and during the weathering conditions. Thermal (TGA and DSC) and chemical (FTIR) analysis were carried out before and after exposure. No changes in thermal stability were observed, however, samples conditioned in acid solution presented thermal degradation event beginning at 131 °C. In addition, all samples presented a similar behavior of melting and crystallization points, which did not change with exposure. FTIR analysis showed a disappearance of C[dbnd]C and C[dbnd]O bonds on samples exposed to natural weathering and basic solution conditioning. It also showed formation of chromophores groups on samples exposed to accelerated weathering. The visual analysis showed huge differences in samples exposed to accelerated weathering and acid solution, which were the most damaged. On the other hand, samples exposed to natural weathering, thermal and basic conditioning did not presented significantly changes supported by the TGA and FTIR results.en
dc.description.affiliationFatigue and Aeronautical Materials Research Group Department of Materials and Technology School of Engineering São Paulo State University (UNESP), Guaratinguetá
dc.description.affiliationDepartment of Biotechnology Lorena School of Engineering University of São Paulo (USP)
dc.description.affiliationInstituto de Estudos Avançados do Mar (IEAMar) São Paulo State University (UNESP), São José dos Campos
dc.description.affiliationUnespFatigue and Aeronautical Materials Research Group Department of Materials and Technology School of Engineering São Paulo State University (UNESP), Guaratinguetá
dc.description.affiliationUnespInstituto de Estudos Avançados do Mar (IEAMar) São Paulo State University (UNESP), São José dos Campos
dc.format.extent123-130
dc.identifierhttp://dx.doi.org/10.1016/j.wasman.2018.11.006
dc.identifier.citationWaste Management, v. 83, p. 123-130.
dc.identifier.doi10.1016/j.wasman.2018.11.006
dc.identifier.issn1879-2456
dc.identifier.issn0956-053X
dc.identifier.lattes6119671014416126
dc.identifier.scopus2-s2.0-85056469624
dc.identifier.urihttp://hdl.handle.net/11449/188353
dc.language.isoeng
dc.relation.ispartofWaste Management
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectDegradation
dc.subjectPlastic waste
dc.subjectPolypropylene
dc.titleEffect of different degradation types on properties of plastic waste obtained from espresso coffee capsulesen
dc.typeArtigo
unesp.author.lattes6119671014416126
unesp.departmentMateriais e Tecnologia - FEGpt

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