Film blowing of PHBV blends and PHBV-based multilayers for the production of biodegradable packages
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/1822/37788 |
Resumo: | Poly(hydroxy butyrate-co-valerate) (PHBV) is a biodegradable polymer that is difficult to melt process into films. Such difficulty is mirrored in the lack of literature on film blowing of PHBV- or PHBV-based materials. To circumvent this problem, 70/30 wt % blends of PHBV with a biodegradable compound (PBSebT), or with poly(butylene adipate-co-terephtalate) (PBAT), were prepared and tested for extrusion film blowing. Both blends showed a similar rheological pattern at 175°C, which is the maximum processing temperature with tolerable thermal degradation. Blending stabilized the film bubbles, thus widening the processing window. However, film properties such as tensile modulus, strain at break and tear resistance remained isotropic and crystallinity characteristics in the machine and transverse directions were generally similar. To bypass the thermal degradation associated with polymer blending, PHBV/PBAT films were coextruded. These showed enhanced functional properties when compared with films blown from blends. The mechanical properties of bilayered films matched those of films blown from commercial PBAT designed for food packaging. |
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Film blowing of PHBV blends and PHBV-based multilayers for the production of biodegradable packagesBiodegradableFilmsPackagingRheologyScience & TechnologyPoly(hydroxy butyrate-co-valerate) (PHBV) is a biodegradable polymer that is difficult to melt process into films. Such difficulty is mirrored in the lack of literature on film blowing of PHBV- or PHBV-based materials. To circumvent this problem, 70/30 wt % blends of PHBV with a biodegradable compound (PBSebT), or with poly(butylene adipate-co-terephtalate) (PBAT), were prepared and tested for extrusion film blowing. Both blends showed a similar rheological pattern at 175°C, which is the maximum processing temperature with tolerable thermal degradation. Blending stabilized the film bubbles, thus widening the processing window. However, film properties such as tensile modulus, strain at break and tear resistance remained isotropic and crystallinity characteristics in the machine and transverse directions were generally similar. To bypass the thermal degradation associated with polymer blending, PHBV/PBAT films were coextruded. These showed enhanced functional properties when compared with films blown from blends. The mechanical properties of bilayered films matched those of films blown from commercial PBAT designed for food packaging.The authors acknowledge the European Commission for the financial support of the ECOefficient BIOdegradable Composite Advanced Packaging project (EcoBioCAP) within the Seventh Framework Programme (Contract-No. FP7-265669). This work was also supported by FEDER funds through the program COMPETE (project PTDC/AGR-ALI/122741/2010), by the Portuguese Foundation for Science and Technology (PEst-C/CTM/LA0025/2013 - Projecto Estrategico - LA 25 - 2013-2014 - Strategic Project - LA 25 - 2013-2014) and by Programa Operacional Regional do Norte (ON.2) through project "Matepro - Optimizing Materials and Processes", with reference NORTE-07-0124-FEDER-000037 FEDER COMPETE.John Wiley and SonsUniversidade do MinhoCunha, MaraFernandes, Bruno DanielCovas, J. A.Vicente, A. A.Hilliou, L.2016-01-102016-01-10T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/37788engCunha, Mara; Fernandes, Bruno Daniel; Covas, José A.; Vicente, A. A.; Hilliou, Loïc, Film blowing of PHBV blends and PHBV-based multilayers for the production of biodegradable packages. Journal of Applied Polymer Science, 133(2), 1-11, 20160021-89951097-462810.1002/app.42165http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1097-4628info: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:RCAAP2023-07-21T12:27:25Zoai:repositorium.sdum.uminho.pt:1822/37788Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:22:00.677430Repositório 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 |
Film blowing of PHBV blends and PHBV-based multilayers for the production of biodegradable packages |
title |
Film blowing of PHBV blends and PHBV-based multilayers for the production of biodegradable packages |
spellingShingle |
Film blowing of PHBV blends and PHBV-based multilayers for the production of biodegradable packages Cunha, Mara Biodegradable Films Packaging Rheology Science & Technology |
title_short |
Film blowing of PHBV blends and PHBV-based multilayers for the production of biodegradable packages |
title_full |
Film blowing of PHBV blends and PHBV-based multilayers for the production of biodegradable packages |
title_fullStr |
Film blowing of PHBV blends and PHBV-based multilayers for the production of biodegradable packages |
title_full_unstemmed |
Film blowing of PHBV blends and PHBV-based multilayers for the production of biodegradable packages |
title_sort |
Film blowing of PHBV blends and PHBV-based multilayers for the production of biodegradable packages |
author |
Cunha, Mara |
author_facet |
Cunha, Mara Fernandes, Bruno Daniel Covas, J. A. Vicente, A. A. Hilliou, L. |
author_role |
author |
author2 |
Fernandes, Bruno Daniel Covas, J. A. Vicente, A. A. Hilliou, L. |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Cunha, Mara Fernandes, Bruno Daniel Covas, J. A. Vicente, A. A. Hilliou, L. |
dc.subject.por.fl_str_mv |
Biodegradable Films Packaging Rheology Science & Technology |
topic |
Biodegradable Films Packaging Rheology Science & Technology |
description |
Poly(hydroxy butyrate-co-valerate) (PHBV) is a biodegradable polymer that is difficult to melt process into films. Such difficulty is mirrored in the lack of literature on film blowing of PHBV- or PHBV-based materials. To circumvent this problem, 70/30 wt % blends of PHBV with a biodegradable compound (PBSebT), or with poly(butylene adipate-co-terephtalate) (PBAT), were prepared and tested for extrusion film blowing. Both blends showed a similar rheological pattern at 175°C, which is the maximum processing temperature with tolerable thermal degradation. Blending stabilized the film bubbles, thus widening the processing window. However, film properties such as tensile modulus, strain at break and tear resistance remained isotropic and crystallinity characteristics in the machine and transverse directions were generally similar. To bypass the thermal degradation associated with polymer blending, PHBV/PBAT films were coextruded. These showed enhanced functional properties when compared with films blown from blends. The mechanical properties of bilayered films matched those of films blown from commercial PBAT designed for food packaging. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-01-10 2016-01-10T00:00:00Z |
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 |
http://hdl.handle.net/1822/37788 |
url |
http://hdl.handle.net/1822/37788 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Cunha, Mara; Fernandes, Bruno Daniel; Covas, José A.; Vicente, A. A.; Hilliou, Loïc, Film blowing of PHBV blends and PHBV-based multilayers for the production of biodegradable packages. Journal of Applied Polymer Science, 133(2), 1-11, 2016 0021-8995 1097-4628 10.1002/app.42165 http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1097-4628 |
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 |
John Wiley and Sons |
publisher.none.fl_str_mv |
John Wiley and Sons |
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 |
instname_str |
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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1799132688915890176 |