Soil biodegradation of PLA/CNW nanocomposites modified with ethylene oxide derivatives

Detalhes bibliográficos
Autor(a) principal: Gois, Gelsoneide da Silva
Data de Publicação: 2017
Outros Autores: Andrade, Michelle Félix de, Garcia, Sônia Maria Silva, Vinhas, Glória Maria, Santos, Amélia S. F., Medeiros, Eliton S., Oliveira, Juliano E., Almeida, Yêda Medeiros Bastos de
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/34009
Resumo: Due to its ester bonds, poly(lactic acid) (PLA) undergoes biodegradation in humid environments, attracting market attention. The goal of this work was to observe the biodegradation in garden soil of PLA nanocomposites with neat (PLA/CNW) and surfactant modified cellulose nanowhiskers (PLA/CNW/S). Three types of surfactants were tested: poly(ethylene glycol) monooleate (PEGMONO) and poly(ethylene glycol) with molecular weight of 300 and 1000 Da. The films were obtained by solution casting, cut in strips of (2x2) cm and buried in garden soil, monitoring the temperature and humidity. After 90, 120 and 150 days changes were observed in the films by visual inspection, polarized light microscopy, thermogravimetric analysis (TGA) and Fourier transform infrared spectroscopy (FTIR). The results showed that the addition of surfactant favored the biodegradation of nanocomposites and that PLA/CNW/PEG1000 showed the fastest biodegradation rate.
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spelling Soil biodegradation of PLA/CNW nanocomposites modified with ethylene oxide derivativesBiodegradationPoly lactic acid (PLA)Cellulose nanowhiskers (CNW)SurfactantDue to its ester bonds, poly(lactic acid) (PLA) undergoes biodegradation in humid environments, attracting market attention. The goal of this work was to observe the biodegradation in garden soil of PLA nanocomposites with neat (PLA/CNW) and surfactant modified cellulose nanowhiskers (PLA/CNW/S). Three types of surfactants were tested: poly(ethylene glycol) monooleate (PEGMONO) and poly(ethylene glycol) with molecular weight of 300 and 1000 Da. The films were obtained by solution casting, cut in strips of (2x2) cm and buried in garden soil, monitoring the temperature and humidity. After 90, 120 and 150 days changes were observed in the films by visual inspection, polarized light microscopy, thermogravimetric analysis (TGA) and Fourier transform infrared spectroscopy (FTIR). The results showed that the addition of surfactant favored the biodegradation of nanocomposites and that PLA/CNW/PEG1000 showed the fastest biodegradation rate.2019-05-06T19:19:29Z2019-05-06T19:19:29Z2017info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfGOIS, G. da S. et al. Soil biodegradation of PLA/CNW nanocomposites modified with ethylene oxide derivatives. Materials Research, São Carlos, v. 20, p. 899-904, 2017. Suplemento 2.http://repositorio.ufla.br/jspui/handle/1/34009Materials Researchreponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessGois, Gelsoneide da SilvaAndrade, Michelle Félix deGarcia, Sônia Maria SilvaVinhas, Glória MariaSantos, Amélia S. F.Medeiros, Eliton S.Oliveira, Juliano E.Almeida, Yêda Medeiros Bastos deeng2019-05-06T19:19:30Zoai:localhost:1/34009Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2019-05-06T19:19:30Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Soil biodegradation of PLA/CNW nanocomposites modified with ethylene oxide derivatives
title Soil biodegradation of PLA/CNW nanocomposites modified with ethylene oxide derivatives
spellingShingle Soil biodegradation of PLA/CNW nanocomposites modified with ethylene oxide derivatives
Gois, Gelsoneide da Silva
Biodegradation
Poly lactic acid (PLA)
Cellulose nanowhiskers (CNW)
Surfactant
title_short Soil biodegradation of PLA/CNW nanocomposites modified with ethylene oxide derivatives
title_full Soil biodegradation of PLA/CNW nanocomposites modified with ethylene oxide derivatives
title_fullStr Soil biodegradation of PLA/CNW nanocomposites modified with ethylene oxide derivatives
title_full_unstemmed Soil biodegradation of PLA/CNW nanocomposites modified with ethylene oxide derivatives
title_sort Soil biodegradation of PLA/CNW nanocomposites modified with ethylene oxide derivatives
author Gois, Gelsoneide da Silva
author_facet Gois, Gelsoneide da Silva
Andrade, Michelle Félix de
Garcia, Sônia Maria Silva
Vinhas, Glória Maria
Santos, Amélia S. F.
Medeiros, Eliton S.
Oliveira, Juliano E.
Almeida, Yêda Medeiros Bastos de
author_role author
author2 Andrade, Michelle Félix de
Garcia, Sônia Maria Silva
Vinhas, Glória Maria
Santos, Amélia S. F.
Medeiros, Eliton S.
Oliveira, Juliano E.
Almeida, Yêda Medeiros Bastos de
author2_role author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Gois, Gelsoneide da Silva
Andrade, Michelle Félix de
Garcia, Sônia Maria Silva
Vinhas, Glória Maria
Santos, Amélia S. F.
Medeiros, Eliton S.
Oliveira, Juliano E.
Almeida, Yêda Medeiros Bastos de
dc.subject.por.fl_str_mv Biodegradation
Poly lactic acid (PLA)
Cellulose nanowhiskers (CNW)
Surfactant
topic Biodegradation
Poly lactic acid (PLA)
Cellulose nanowhiskers (CNW)
Surfactant
description Due to its ester bonds, poly(lactic acid) (PLA) undergoes biodegradation in humid environments, attracting market attention. The goal of this work was to observe the biodegradation in garden soil of PLA nanocomposites with neat (PLA/CNW) and surfactant modified cellulose nanowhiskers (PLA/CNW/S). Three types of surfactants were tested: poly(ethylene glycol) monooleate (PEGMONO) and poly(ethylene glycol) with molecular weight of 300 and 1000 Da. The films were obtained by solution casting, cut in strips of (2x2) cm and buried in garden soil, monitoring the temperature and humidity. After 90, 120 and 150 days changes were observed in the films by visual inspection, polarized light microscopy, thermogravimetric analysis (TGA) and Fourier transform infrared spectroscopy (FTIR). The results showed that the addition of surfactant favored the biodegradation of nanocomposites and that PLA/CNW/PEG1000 showed the fastest biodegradation rate.
publishDate 2017
dc.date.none.fl_str_mv 2017
2019-05-06T19:19:29Z
2019-05-06T19:19:29Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv GOIS, G. da S. et al. Soil biodegradation of PLA/CNW nanocomposites modified with ethylene oxide derivatives. Materials Research, São Carlos, v. 20, p. 899-904, 2017. Suplemento 2.
http://repositorio.ufla.br/jspui/handle/1/34009
identifier_str_mv GOIS, G. da S. et al. Soil biodegradation of PLA/CNW nanocomposites modified with ethylene oxide derivatives. Materials Research, São Carlos, v. 20, p. 899-904, 2017. Suplemento 2.
url http://repositorio.ufla.br/jspui/handle/1/34009
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv Materials Research
reponame:Repositório Institucional da UFLA
instname:Universidade Federal de Lavras (UFLA)
instacron:UFLA
instname_str Universidade Federal de Lavras (UFLA)
instacron_str UFLA
institution UFLA
reponame_str Repositório Institucional da UFLA
collection Repositório Institucional da UFLA
repository.name.fl_str_mv Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)
repository.mail.fl_str_mv nivaldo@ufla.br || repositorio.biblioteca@ufla.br
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