LDPE-Nanoclay films for food packaging with improved barrier properties
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | https://hdl.handle.net/1822/86916 |
Resumo: | This study focuses on the development of low-density polyethylene matrix nanocomposite films for food packaging industry and aims at improving low-density polyethylene oxygen barrier properties while maintaining other relevant characteristics, such as processability, easy post-processing, optical and mechanical properties. low-density polyethylene nanocomposites, with 1 and 2.5 wt.% nanoclay (NC) and also compatibilized with 5 wt.% polyethylene grafted with maleic anhydride (PE-g-MA), were prepared and used to produce blown films. The nanocomposites were characterized in terms of their morphology, thermal, rheological, mechanical, barrier and optical properties, through scanning electron microscopy (SEM), X-ray diffraction (XRD), differential scanning calorimetry (DSC), rheological measurements, tensile tests, water vapor transmission, oxygen permeability tests and spectrophotometry. The results demonstrated good NC dispersion in the polymer matrix and decreased oxygen permeability in the compatibilized nanocomposite films. All the other properties did not significantly change when compared to neat low-density polyethylene. Overall, the film properties were improved with the added nanoclay and PE-g-MA and, have potential for food packaging. |
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LDPE-Nanoclay films for food packaging with improved barrier propertiesLow-density polyethylene nanocompositesNanoclayCompatibilizerPermeabilityBlown-filmFood packagingScience & TechnologyThis study focuses on the development of low-density polyethylene matrix nanocomposite films for food packaging industry and aims at improving low-density polyethylene oxygen barrier properties while maintaining other relevant characteristics, such as processability, easy post-processing, optical and mechanical properties. low-density polyethylene nanocomposites, with 1 and 2.5 wt.% nanoclay (NC) and also compatibilized with 5 wt.% polyethylene grafted with maleic anhydride (PE-g-MA), were prepared and used to produce blown films. The nanocomposites were characterized in terms of their morphology, thermal, rheological, mechanical, barrier and optical properties, through scanning electron microscopy (SEM), X-ray diffraction (XRD), differential scanning calorimetry (DSC), rheological measurements, tensile tests, water vapor transmission, oxygen permeability tests and spectrophotometry. The results demonstrated good NC dispersion in the polymer matrix and decreased oxygen permeability in the compatibilized nanocomposite films. All the other properties did not significantly change when compared to neat low-density polyethylene. Overall, the film properties were improved with the added nanoclay and PE-g-MA and, have potential for food packaging.Acknowledgements This study was supported by the project "MobFood - Mobilizing scientific and technological knowledge in response to the challenges of the agri-food market", Reference POCI-01- 0247-FEDER-024524.SAGE Publications LtdUniversidade do MinhoBarros, CarolinaMiranda, SóniaCastro, OlgaCarneiro, O. S.Machado, A. V.2023-01-1210000-01-01T00:00:00Z2023-01-12T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/1822/86916engBarros, C., Miranda, S., Castro, O., Carneiro, O., & Machado, A. (2023, January 12). LDPE-Nanoclay films for food packaging with improved barrier properties. Journal of Plastic Film & Sheeting. SAGE Publications. http://doi.org/10.1177/875608792211511908756-087910.1177/87560879221151190https://journals.sagepub.com/doi/10.1177/87560879221151190info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-10-21T01:27:35Zoai:repositorium.sdum.uminho.pt:1822/86916Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:39:06.040091Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
LDPE-Nanoclay films for food packaging with improved barrier properties |
title |
LDPE-Nanoclay films for food packaging with improved barrier properties |
spellingShingle |
LDPE-Nanoclay films for food packaging with improved barrier properties Barros, Carolina Low-density polyethylene nanocomposites Nanoclay Compatibilizer Permeability Blown-film Food packaging Science & Technology |
title_short |
LDPE-Nanoclay films for food packaging with improved barrier properties |
title_full |
LDPE-Nanoclay films for food packaging with improved barrier properties |
title_fullStr |
LDPE-Nanoclay films for food packaging with improved barrier properties |
title_full_unstemmed |
LDPE-Nanoclay films for food packaging with improved barrier properties |
title_sort |
LDPE-Nanoclay films for food packaging with improved barrier properties |
author |
Barros, Carolina |
author_facet |
Barros, Carolina Miranda, Sónia Castro, Olga Carneiro, O. S. Machado, A. V. |
author_role |
author |
author2 |
Miranda, Sónia Castro, Olga Carneiro, O. S. Machado, A. V. |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Barros, Carolina Miranda, Sónia Castro, Olga Carneiro, O. S. Machado, A. V. |
dc.subject.por.fl_str_mv |
Low-density polyethylene nanocomposites Nanoclay Compatibilizer Permeability Blown-film Food packaging Science & Technology |
topic |
Low-density polyethylene nanocomposites Nanoclay Compatibilizer Permeability Blown-film Food packaging Science & Technology |
description |
This study focuses on the development of low-density polyethylene matrix nanocomposite films for food packaging industry and aims at improving low-density polyethylene oxygen barrier properties while maintaining other relevant characteristics, such as processability, easy post-processing, optical and mechanical properties. low-density polyethylene nanocomposites, with 1 and 2.5 wt.% nanoclay (NC) and also compatibilized with 5 wt.% polyethylene grafted with maleic anhydride (PE-g-MA), were prepared and used to produce blown films. The nanocomposites were characterized in terms of their morphology, thermal, rheological, mechanical, barrier and optical properties, through scanning electron microscopy (SEM), X-ray diffraction (XRD), differential scanning calorimetry (DSC), rheological measurements, tensile tests, water vapor transmission, oxygen permeability tests and spectrophotometry. The results demonstrated good NC dispersion in the polymer matrix and decreased oxygen permeability in the compatibilized nanocomposite films. All the other properties did not significantly change when compared to neat low-density polyethylene. Overall, the film properties were improved with the added nanoclay and PE-g-MA and, have potential for food packaging. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
10000-01-01T00:00:00Z 2023-01-12 2023-01-12T00:00:00Z |
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 |
https://hdl.handle.net/1822/86916 |
url |
https://hdl.handle.net/1822/86916 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Barros, C., Miranda, S., Castro, O., Carneiro, O., & Machado, A. (2023, January 12). LDPE-Nanoclay films for food packaging with improved barrier properties. Journal of Plastic Film & Sheeting. SAGE Publications. http://doi.org/10.1177/87560879221151190 8756-0879 10.1177/87560879221151190 https://journals.sagepub.com/doi/10.1177/87560879221151190 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
SAGE Publications Ltd |
publisher.none.fl_str_mv |
SAGE Publications Ltd |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799133651507609600 |