Enhanced miscibility of PBAT/PLA/lignin upon γ-irradiation and effects on the non-isothermal crystallization

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dc.contributor.authorBARROS, JANETTY J.P.pt_BR
dc.contributor.authorSOARES, CARLOS P.pt_BR
dc.contributor.authorMOURA, ESPERIDIANA A.B. dept_BR
dc.contributor.authorWELLEN, RENATE M.R.pt_BR
dc.coverageInternacionalpt_BR
dc.date.accessioned2022-12-12T18:00:22Z
dc.date.available2022-12-12T18:00:22Z
dc.date.issued2022pt_BR
dc.description.abstractLignin is natural and renewable polymer, the second most abundant on Earth. Properly used it can reduce synthetic and oil based materials in addition to contributing to the biodegradable systems. In this work, the kraft lignin was subjected to gamma radiation at absorbed doses of 30, 60, and 90 KGy in order to increase the interaction with “Poly(butylene adipate-co-terephthalate) (PBAT)/Poly(lactic acid) (PLA)” blend (Ecovio®). PBAT/PLA/lignin blends with 10% of the weight of lignin were produced by extrusion using twin-screw extruder and characterized by Fourier transform infrared spectroscopy (FTIR), Differential scanning calorimetry (DSC), and Field emission scanning electron microscopy (FE-SEM). FTIR spectra showed partial miscibility between PBAT/PLA and lignin, most due to the hydrogen bond between PBAT/PLA carbonyl and lignin hydroxyl, being intensified in irradiated lignin compounds. As evidenced on DSC scans, in PBAT/PLA/irradiated lignin the crystallization peak was shifted to lower temperatures and the crystallization rate decreased. Crystallization kinetics was modeled using Pseudo Avrami, and isoconversional models of Friedman and Vyazovkin. Pseudo-Avrami displayed linearity deviation at beginning and crystallization ending due to the nucleation and secondary crystallization, while from Friedman and Vyazovkin the activation energy (Ea) was higher for PBAT/PLA/irradiated lignin 30 KGy, characterizing crystallization with higher energy consumption. FE-SEM images showed better dispersion and miscibility in PBAT/PLA/irradiated lignin. The results indicate that the irradiation of Kraft lignin promotes miscibility and compatibility of PBAT/PLA/lignin.pt_BR
dc.description.sponsorshipFundação de Apoio à Pesquisa do Estado da Paraíba (FAPESQ)pt_BR
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)pt_BR
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)pt_BR
dc.description.sponsorshipInternational Atomic Energy Agency (IAEA)pt_BR
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)pt_BR
dc.description.sponsorshipIDFAPESQ: 017/2019pt_BR
dc.description.sponsorshipIDCNPq: 303426/2021-7pt_BR
dc.description.sponsorshipIDCAPES: 88887.569630/2020-00pt_BR
dc.description.sponsorshipIDIAEA: CRP 17760/ROpt_BR
dc.description.sponsorshipIDFAPESP: 19/00862-9pt_BR
dc.format.extent1-18pt_BR
dc.identifier.citationBARROS, JANETTY J.P.; SOARES, CARLOS P.; MOURA, ESPERIDIANA A.B. de; WELLEN, RENATE M.R. Enhanced miscibility of PBAT/PLA/lignin upon γ-irradiation and effects on the non-isothermal crystallization. <b>Journal of Applied Polymer Science</b>, v. 139, n. 45, p. 1-18, 2022. DOI: <a href="https://dx.doi.org/10.1002/app.53124">10.1002/app.53124</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/33423.
dc.identifier.doi10.1002/app.53124pt_BR
dc.identifier.fasciculo45pt_BR
dc.identifier.issn0021-8995pt_BR
dc.identifier.orcid0000-0003-3546-1643pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0003-3546-1643
dc.identifier.percentilfi50.6pt_BR
dc.identifier.percentilfiCiteScore69.5pt_BR
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/33423
dc.identifier.vol139pt_BR
dc.relation.ispartofJournal of Applied Polymer Sciencept_BR
dc.rightsopenAccesspt_BR
dc.subjectcrystallization
dc.subjectpolymers
dc.subjectcalorimetry
dc.subjectirradiation
dc.subjectkinetics
dc.titleEnhanced miscibility of PBAT/PLA/lignin upon γ-irradiation and effects on the non-isothermal crystallizationpt_BR
dc.typeArtigo de periódicopt_BR
dspace.entity.typePublication
ipen.autorCARLOS PEREIRA SOARES
ipen.autorESPERIDIANA AUGUSTA BARRETOS DE MOURA
ipen.autorJANETTY JANY PEREIRA BARROS
ipen.codigoautor14680
ipen.codigoautor1045
ipen.codigoautor15654
ipen.contributor.ipenauthorCARLOS PEREIRA SOARES
ipen.contributor.ipenauthorESPERIDIANA AUGUSTA BARRETOS DE MOURA
ipen.contributor.ipenauthorJANETTY JANY PEREIRA BARROS
ipen.date.recebimento22-12
ipen.identifier.fi3pt_BR
ipen.identifier.fiCiteScore5.4pt_BR
ipen.identifier.ipendoc29057pt_BR
ipen.identifier.iwosWoSpt_BR
ipen.range.fi3.000 - 4.499
ipen.range.percentilfi50.00 - 74.99
ipen.type.genreArtigo
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sigepi.autor.atividadeMOURA, ESPERIDIANA A.B. de:1045:740:Npt_BR
sigepi.autor.atividadeSOARES, CARLOS P.:14680:750:Npt_BR
sigepi.autor.atividadeBARROS, JANETTY J.P.:15654:750:Spt_BR
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