Characterization of TPS/PBAT blends irradiated by ionizing radiation

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dc.contributor.authorCASTRO, DIONE P. dept_BR
dc.contributor.authorSILVA, LEONARDO G. de A. ept_BR
dc.coverageInternacionalpt_BR
dc.creator.eventoBRAZILIAN POLYMER CONFERENCE,16thpt_BR
dc.date.accessioned2021-12-30T14:13:27Z
dc.date.available2021-12-30T14:13:27Z
dc.date.eventoOctober 24-28, 2021pt_BR
dc.description.abstractThe use of biodegradable polymers is an important alternative today for both the environment and industry. However, when compared to conventional polymers, biodegradables are more expensive. The development of polymeric blends using matrices of biodegradable and synthetic polymers with natural additives are less damaging to the environment and more cost efficient. This study aimed to prepare natural blends of thermoplastic starch (TPS) with poly(butylene adipate-co-terephthalate) (PBAT) by reactive extrusion. The blends were submitted to the irradiation process using a Cobalt-60 source at a 25 kGy dose and then characterized by Fourier-transform infrared spectroscopy (FTIR) and differential heat flow scanning calorimetry (DSC). According to the results obtained in the FTIR tests, the blends did not undergo chemical changes during the irradiation process and, thus, maintained their properties. In the DSC tests, it was observed that the blends F2 (composed of castor oil) and F3 (composed of castor oil and TWEEN® 80) showed higher values of heat flow for degradation than the samples F0 (composed of glycerol) and F1 (composed of glycerol and TWEEN® 80), probably due to the chemical interaction of castor oil and its constituents. There was no thermal variation in the irradiation process between blends F0 and F1 or F2 and F3 . It was concluded that it is feasible to replace castor oil with glycerol in TPS/PBAT blends.pt_BR
dc.event.siglaCBPOLpt_BR
dc.identifier.citationCASTRO, DIONE P. de; SILVA, LEONARDO G. de A. e. Characterization of TPS/PBAT blends irradiated by ionizing radiation. In: BRAZILIAN POLYMER CONFERENCE,16th, October 24-28, 2021, Ouro Preto-MG, Online. <b>Proceedings...</b> São Carlos, SP: Associação Brasileira de Polímeros, 2021. Disponível em: http://repositorio.ipen.br/handle/123456789/32593.
dc.identifier.orcidhttps://orcid.org/0000-0002-7968-2117
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/32593
dc.localSão Carlos, SPpt_BR
dc.local.eventoOuro Preto-MG, Onlinept_BR
dc.publisherAssociação Brasileira de Polímerospt_BR
dc.rightsopenAccesspt_BR
dc.subjectbiodegradation
dc.subjectpolymers
dc.subjectirradiation
dc.subjectenvironment
dc.subjectionizing radiations
dc.titleCharacterization of TPS/PBAT blends irradiated by ionizing radiationpt_BR
dc.typeTexto completo de eventopt_BR
dspace.entity.typePublication
ipen.autorLEONARDO GONDIM DE ANDRADE E SILVA
ipen.autorDIONE PEREIRA DE CASTRO
ipen.codigoautor778
ipen.codigoautor12096
ipen.contributor.ipenauthorLEONARDO GONDIM DE ANDRADE E SILVA
ipen.contributor.ipenauthorDIONE PEREIRA DE CASTRO
ipen.date.recebimento21-12
ipen.event.datapadronizada2021pt_BR
ipen.identifier.ipendoc28368pt_BR
ipen.notas.internasProceedingspt_BR
ipen.type.genreArtigo
relation.isAuthorOfPublication7dd08095-05fc-4a64-8b67-368f74cab3a7
relation.isAuthorOfPublication43a3084e-fd86-400d-ae9d-eaf1dc15458c
relation.isAuthorOfPublication.latestForDiscovery43a3084e-fd86-400d-ae9d-eaf1dc15458c
sigepi.autor.atividadeSILVA, LEONARDO G. de A. e:778:220:Npt_BR
sigepi.autor.atividadeCASTRO, DIONE P. de:12096:220:Spt_BR
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