Hard and transparent films formed by nanocellulose-TiO2 nanoparticle hybrids

T he formation of hybrids of nanofibrillated cellulose and titania nanoparticles in aqueous media has been studied. Their transparency and mechanical behavior have been assessed by spectrophotometry and nanoindentation. The results show that limiting the titania nanoparticle concentration below 16 v...

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Autores: Schütz, Christina, Sort, Jordi|||0000-0003-1213-3639, Bacsik, Zoltán, Oliynik, Vitaliy, Pellicer, Eva|||0000-0002-8901-0998, Fall, Andreas|||0000-0002-9816-5270, Wagberg, Lars, Berglund, Lars, Bergström, Lennart, Salazar Álvarez, Germán|||0000-0002-0671-435X
Formato: artículo
Fecha de publicación:2012
País:España
Recursos:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:107185
Acesso em linha:https://ddd.uab.cat/record/107185
https://dx.doi.org/urn:doi:10.1371/journal.pone.0045828
Access Level:acceso abierto
Palavra-chave:Pel·lícules fines
Nanopartícules
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spelling Hard and transparent films formed by nanocellulose-TiO2 nanoparticle hybridsSchütz, ChristinaSort, Jordi|||0000-0003-1213-3639Bacsik, ZoltánOliynik, VitaliyPellicer, Eva|||0000-0002-8901-0998Fall, Andreas|||0000-0002-9816-5270Wagberg, LarsBerglund, LarsBergström, LennartSalazar Álvarez, Germán|||0000-0002-0671-435XPel·lícules finesNanopartículesT he formation of hybrids of nanofibrillated cellulose and titania nanoparticles in aqueous media has been studied. Their transparency and mechanical behavior have been assessed by spectrophotometry and nanoindentation. The results show that limiting the titania nanoparticle concentration below 16 vol% yields homogeneous hybrids with a very high Young's modulus and hardness, of up to 44 GPa and 3.4 GPa, respectively, and an optical transmittance above 80%. Electron microscopy shows that higher nanoparticle contents result in agglomeration and an inhomogeneous hybrid nanostructure with a concomitant reduction of hardness and optical transmittance. Infrared spectroscopy suggests that the nanostructure of the hybrids is controlled by electrostatic adsorption of the titania nanoparticles on the negatively charged nanocellulose surfaces. 22012-01-0120122012-01-01Articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://ddd.uab.cat/record/107185https://dx.doi.org/urn:doi:10.1371/journal.pone.0045828reponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengMinisterio de Ciencia e Innovación https://doi.org/10.13039/501100004837 MAT2011-27380-C02-01open accesshttp://purl.org/coar/access_right/c_abf2Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.https://creativecommons.org/licenses/by/2.0/info:eu-repo/semantics/openAccessoai:ddd.uab.cat:1071852026-06-06T12:50:31Z
dc.title.none.fl_str_mv Hard and transparent films formed by nanocellulose-TiO2 nanoparticle hybrids
title Hard and transparent films formed by nanocellulose-TiO2 nanoparticle hybrids
spellingShingle Hard and transparent films formed by nanocellulose-TiO2 nanoparticle hybrids
Schütz, Christina
Pel·lícules fines
Nanopartícules
title_short Hard and transparent films formed by nanocellulose-TiO2 nanoparticle hybrids
title_full Hard and transparent films formed by nanocellulose-TiO2 nanoparticle hybrids
title_fullStr Hard and transparent films formed by nanocellulose-TiO2 nanoparticle hybrids
title_full_unstemmed Hard and transparent films formed by nanocellulose-TiO2 nanoparticle hybrids
title_sort Hard and transparent films formed by nanocellulose-TiO2 nanoparticle hybrids
dc.creator.none.fl_str_mv Schütz, Christina
Sort, Jordi|||0000-0003-1213-3639
Bacsik, Zoltán
Oliynik, Vitaliy
Pellicer, Eva|||0000-0002-8901-0998
Fall, Andreas|||0000-0002-9816-5270
Wagberg, Lars
Berglund, Lars
Bergström, Lennart
Salazar Álvarez, Germán|||0000-0002-0671-435X
author Schütz, Christina
author_facet Schütz, Christina
Sort, Jordi|||0000-0003-1213-3639
Bacsik, Zoltán
Oliynik, Vitaliy
Pellicer, Eva|||0000-0002-8901-0998
Fall, Andreas|||0000-0002-9816-5270
Wagberg, Lars
Berglund, Lars
Bergström, Lennart
Salazar Álvarez, Germán|||0000-0002-0671-435X
author_role author
author2 Sort, Jordi|||0000-0003-1213-3639
Bacsik, Zoltán
Oliynik, Vitaliy
Pellicer, Eva|||0000-0002-8901-0998
Fall, Andreas|||0000-0002-9816-5270
Wagberg, Lars
Berglund, Lars
Bergström, Lennart
Salazar Álvarez, Germán|||0000-0002-0671-435X
author2_role author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Pel·lícules fines
Nanopartícules
topic Pel·lícules fines
Nanopartícules
description T he formation of hybrids of nanofibrillated cellulose and titania nanoparticles in aqueous media has been studied. Their transparency and mechanical behavior have been assessed by spectrophotometry and nanoindentation. The results show that limiting the titania nanoparticle concentration below 16 vol% yields homogeneous hybrids with a very high Young's modulus and hardness, of up to 44 GPa and 3.4 GPa, respectively, and an optical transmittance above 80%. Electron microscopy shows that higher nanoparticle contents result in agglomeration and an inhomogeneous hybrid nanostructure with a concomitant reduction of hardness and optical transmittance. Infrared spectroscopy suggests that the nanostructure of the hybrids is controlled by electrostatic adsorption of the titania nanoparticles on the negatively charged nanocellulose surfaces.
publishDate 2012
dc.date.none.fl_str_mv 2
2012-01-01
2012
2012-01-01
dc.type.none.fl_str_mv Article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://ddd.uab.cat/record/107185
https://dx.doi.org/urn:doi:10.1371/journal.pone.0045828
url https://ddd.uab.cat/record/107185
https://dx.doi.org/urn:doi:10.1371/journal.pone.0045828
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Ministerio de Ciencia e Innovación https://doi.org/10.13039/501100004837 MAT2011-27380-C02-01
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://creativecommons.org/licenses/by/2.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://creativecommons.org/licenses/by/2.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Dipòsit Digital de Documents de la UAB
instname:Universitat Autònoma de Barcelona
instname_str Universitat Autònoma de Barcelona
reponame_str Dipòsit Digital de Documents de la UAB
collection Dipòsit Digital de Documents de la UAB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300724

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