Green nanocomposites from Salvia-based waterborne polyurethane-urea dispersions reinforced with nanocellulose

Detalhes bibliográficos
Autor(a) principal: Santamaria-Echart, Arantzazu
Data de Publicação: 2018
Outros Autores: Fernandes, Isabel P., Ugarte, Lorena, Barreiro, M.F., Corcuera, Maria Angeles, Eceiza, Arantaxa
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10198/24286
Resumo: Waterborne polyurethane-urea (WBPUU) dispersions, products having none or low contents of organic solvents, depending on the used synthesis process, can provide suitable environmentally-friendly strategies to prepare novel materials. Moreover, waterborne systems enable the incorporation of aqueous dispersible nanoentities and soluble additives, which provides a strategy to design versatile functional materials with tailored properties. Having demonstrated in previous work the bacteriostatic properties of a 3 wt% Salvia-based WBPUU against Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa, this work is focused in the preparation of Salvia-based WBPUU added with cellulose nanocrystals (CNC) tackling the preparation of functional green nanocomposite films with increased mechanical properties. Through this strategy, nanocomposites loaded with 1, 3 and 5 wt% of CNC were prepared, showing an effective CNC incorporation avoiding agglomerates. CNC addition is able to modulate soft and hard phase's segregation, inducing enhanced mechanical stiffness, together with improved deformability, while retarding thermomechanical instability to higher temperatures.
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spelling Green nanocomposites from Salvia-based waterborne polyurethane-urea dispersions reinforced with nanocelluloseCellulose nanocrystalsMorphologySalvia extractThermomechanical propertiesWaterborne polyurethane-ureaWaterborne polyurethane-urea (WBPUU) dispersions, products having none or low contents of organic solvents, depending on the used synthesis process, can provide suitable environmentally-friendly strategies to prepare novel materials. Moreover, waterborne systems enable the incorporation of aqueous dispersible nanoentities and soluble additives, which provides a strategy to design versatile functional materials with tailored properties. Having demonstrated in previous work the bacteriostatic properties of a 3 wt% Salvia-based WBPUU against Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa, this work is focused in the preparation of Salvia-based WBPUU added with cellulose nanocrystals (CNC) tackling the preparation of functional green nanocomposite films with increased mechanical properties. Through this strategy, nanocomposites loaded with 1, 3 and 5 wt% of CNC were prepared, showing an effective CNC incorporation avoiding agglomerates. CNC addition is able to modulate soft and hard phase's segregation, inducing enhanced mechanical stiffness, together with improved deformability, while retarding thermomechanical instability to higher temperatures.Financial support from the University of the Basque Country (UPV/ EHU) (GIU18/216 Research Group), the Spanish Ministry of Economy and Competitiveness (MINECO) (MAT2016-76294-R). Foundation for Science and Technology (FCT, Portugal) for financial support by national funds FCT/MCTES to CIMO (UIDB/00690/2020). National funding by FCT- Foundation for Science and Technology, through the institutional scientific employment program-contract with I.P. Fernandes. We also wish to acknowledge the “Macrobehaviour-Mesostructure- Nanotechnology” SGIker units from the UPV/EHU, for their technical supportBiblioteca Digital do IPBSantamaria-Echart, ArantzazuFernandes, Isabel P.Ugarte, LorenaBarreiro, M.F.Corcuera, Maria AngelesEceiza, Arantaxa2018-01-19T10:00:00Z20212021-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10198/24286engSantamaria-Echart, Arantzazu; Fernandes, Isabel; Ugarte, Lorena; Barreiro, Filomena; Corcuera, Maria Angeles; Eceiza, Arantxa (2021). Green nanocomposites from Salvia-based waterborne polyurethane-urea dispersions reinforced with nanocellulose. Progress in Organic Coatings. ISSN 0300-9440. 150, p. 1-90300-944010.1016/j.porgcoat.2020.105989info: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:RCAAP2023-11-21T10:54:17Zoai:bibliotecadigital.ipb.pt:10198/24286Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T23:15:07.978189Repositório 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 Green nanocomposites from Salvia-based waterborne polyurethane-urea dispersions reinforced with nanocellulose
title Green nanocomposites from Salvia-based waterborne polyurethane-urea dispersions reinforced with nanocellulose
spellingShingle Green nanocomposites from Salvia-based waterborne polyurethane-urea dispersions reinforced with nanocellulose
Santamaria-Echart, Arantzazu
Cellulose nanocrystals
Morphology
Salvia extract
Thermomechanical properties
Waterborne polyurethane-urea
title_short Green nanocomposites from Salvia-based waterborne polyurethane-urea dispersions reinforced with nanocellulose
title_full Green nanocomposites from Salvia-based waterborne polyurethane-urea dispersions reinforced with nanocellulose
title_fullStr Green nanocomposites from Salvia-based waterborne polyurethane-urea dispersions reinforced with nanocellulose
title_full_unstemmed Green nanocomposites from Salvia-based waterborne polyurethane-urea dispersions reinforced with nanocellulose
title_sort Green nanocomposites from Salvia-based waterborne polyurethane-urea dispersions reinforced with nanocellulose
author Santamaria-Echart, Arantzazu
author_facet Santamaria-Echart, Arantzazu
Fernandes, Isabel P.
Ugarte, Lorena
Barreiro, M.F.
Corcuera, Maria Angeles
Eceiza, Arantaxa
author_role author
author2 Fernandes, Isabel P.
Ugarte, Lorena
Barreiro, M.F.
Corcuera, Maria Angeles
Eceiza, Arantaxa
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Biblioteca Digital do IPB
dc.contributor.author.fl_str_mv Santamaria-Echart, Arantzazu
Fernandes, Isabel P.
Ugarte, Lorena
Barreiro, M.F.
Corcuera, Maria Angeles
Eceiza, Arantaxa
dc.subject.por.fl_str_mv Cellulose nanocrystals
Morphology
Salvia extract
Thermomechanical properties
Waterborne polyurethane-urea
topic Cellulose nanocrystals
Morphology
Salvia extract
Thermomechanical properties
Waterborne polyurethane-urea
description Waterborne polyurethane-urea (WBPUU) dispersions, products having none or low contents of organic solvents, depending on the used synthesis process, can provide suitable environmentally-friendly strategies to prepare novel materials. Moreover, waterborne systems enable the incorporation of aqueous dispersible nanoentities and soluble additives, which provides a strategy to design versatile functional materials with tailored properties. Having demonstrated in previous work the bacteriostatic properties of a 3 wt% Salvia-based WBPUU against Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa, this work is focused in the preparation of Salvia-based WBPUU added with cellulose nanocrystals (CNC) tackling the preparation of functional green nanocomposite films with increased mechanical properties. Through this strategy, nanocomposites loaded with 1, 3 and 5 wt% of CNC were prepared, showing an effective CNC incorporation avoiding agglomerates. CNC addition is able to modulate soft and hard phase's segregation, inducing enhanced mechanical stiffness, together with improved deformability, while retarding thermomechanical instability to higher temperatures.
publishDate 2018
dc.date.none.fl_str_mv 2018-01-19T10:00:00Z
2021
2021-01-01T00:00:00Z
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/10198/24286
url http://hdl.handle.net/10198/24286
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Santamaria-Echart, Arantzazu; Fernandes, Isabel; Ugarte, Lorena; Barreiro, Filomena; Corcuera, Maria Angeles; Eceiza, Arantxa (2021). Green nanocomposites from Salvia-based waterborne polyurethane-urea dispersions reinforced with nanocellulose. Progress in Organic Coatings. ISSN 0300-9440. 150, p. 1-9
0300-9440
10.1016/j.porgcoat.2020.105989
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.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
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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
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