Effect of the addition of polyester-grafted-cellulose nanocrystals on the shape memory properties of biodegradable PLA/PCL bionanocomposites

In this work the thermally-activated shape memory response of biodegradable nanocomposites based on PLA/PCL blend reinforced with different type of cellulose nanocrystals has been reported, and compared with those of the neat matrix, at the same transition temperature of 55 °C and at the same differ...

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Authors: Sessini, Valentina|||0000-0003-1205-4586, Navarro-Baena, Iván, Arrieta, Marina Patricia, Dominici, Franco, Lopez, Daniel, Torre, Luigi, Kenny, José María, Dubois, Philippe, Raquez, Jean-Marie, Peponi, Laura
Format: article
Publication Date:2018
Country:España
Institution:Universidad de Alcalá (UAH)
Repository:e_Buah Biblioteca Digital Universidad de Alcalá
Language:English
OAI Identifier:oai:ebuah.uah.es:10017/43756
Online Access:http://hdl.handle.net/10017/43756
Access Level:Open access
Keyword:Shape memory
Thermally-activated
PLA/PCL blend
Nanocomposites
CNC
Química
Chemistry
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spelling Effect of the addition of polyester-grafted-cellulose nanocrystals on the shape memory properties of biodegradable PLA/PCL bionanocompositesSessini, Valentina|||0000-0003-1205-4586Navarro-Baena, IvánArrieta, Marina PatriciaDominici, FrancoLopez, DanielTorre, LuigiKenny, José MaríaDubois, PhilippeRaquez, Jean-MariePeponi, LauraShape memoryThermally-activatedPLA/PCL blendNanocompositesCNCQuímicaChemistryIn this work the thermally-activated shape memory response of biodegradable nanocomposites based on PLA/PCL blend reinforced with different type of cellulose nanocrystals has been reported, and compared with those of the neat matrix, at the same transition temperature of 55 °C and at the same different deformations, 50%, 100% and 150%. In particular, cellulose nanocrystals have been synthesized and then functionalized by "grafting from" reaction by ring opening polymerization of both PLLA and PCL using the &-OH groups onto the cellulose nanocrystals surface as initiators for the reaction. The morphology, thermal and mechanical analysis have been performed in order to obtain the parameters for the thermo-mechanical shape memory cycles. Moreover, the addition of the CNC-based nanofillers on the compatibility of PLA-PCL blends in 70:30 proportion has been evaluated. All the biodegradable nanocomposite formulations showed excellent shape memory response, similar to those of the neat matrix, with strain recovery ratio and strain fixity ratio higher than 80% and 90%, respectively. This fact indicates that in this case, the shape memory response of the nanocomposites is mainly controlled by the response of the neat blend and they are slightly influenced by the increase of compatibility between the components of the blend. In addition, all nanocomposite films were fully disintegrated under composting conditions confirming their biodegradable nature, obtaining that the presence of CNC-based nanofillers speeds up the disintegration rate of the nanocomposites in comparison with the pure matrix.20182018-04-10journal articlehttp://purl.org/coar/resource_type/c_6501NAhttp://purl.org/coar/version/c_be7fb7dd8ff6fe43info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10017/43756reponame:e_Buah Biblioteca Digital Universidad de Alcaláinstname:Universidad de Alcalá (UAH)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-ShareAlike 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-sa/4.0/info:eu-repo/semantics/openAccessoai:ebuah.uah.es:10017/437562026-06-18T11:13:07Z
dc.title.none.fl_str_mv Effect of the addition of polyester-grafted-cellulose nanocrystals on the shape memory properties of biodegradable PLA/PCL bionanocomposites
title Effect of the addition of polyester-grafted-cellulose nanocrystals on the shape memory properties of biodegradable PLA/PCL bionanocomposites
spellingShingle Effect of the addition of polyester-grafted-cellulose nanocrystals on the shape memory properties of biodegradable PLA/PCL bionanocomposites
Sessini, Valentina|||0000-0003-1205-4586
Shape memory
Thermally-activated
PLA/PCL blend
Nanocomposites
CNC
Química
Chemistry
title_short Effect of the addition of polyester-grafted-cellulose nanocrystals on the shape memory properties of biodegradable PLA/PCL bionanocomposites
title_full Effect of the addition of polyester-grafted-cellulose nanocrystals on the shape memory properties of biodegradable PLA/PCL bionanocomposites
title_fullStr Effect of the addition of polyester-grafted-cellulose nanocrystals on the shape memory properties of biodegradable PLA/PCL bionanocomposites
title_full_unstemmed Effect of the addition of polyester-grafted-cellulose nanocrystals on the shape memory properties of biodegradable PLA/PCL bionanocomposites
title_sort Effect of the addition of polyester-grafted-cellulose nanocrystals on the shape memory properties of biodegradable PLA/PCL bionanocomposites
dc.creator.none.fl_str_mv Sessini, Valentina|||0000-0003-1205-4586
Navarro-Baena, Iván
Arrieta, Marina Patricia
Dominici, Franco
Lopez, Daniel
Torre, Luigi
Kenny, José María
Dubois, Philippe
Raquez, Jean-Marie
Peponi, Laura
author Sessini, Valentina|||0000-0003-1205-4586
author_facet Sessini, Valentina|||0000-0003-1205-4586
Navarro-Baena, Iván
Arrieta, Marina Patricia
Dominici, Franco
Lopez, Daniel
Torre, Luigi
Kenny, José María
Dubois, Philippe
Raquez, Jean-Marie
Peponi, Laura
author_role author
author2 Navarro-Baena, Iván
Arrieta, Marina Patricia
Dominici, Franco
Lopez, Daniel
Torre, Luigi
Kenny, José María
Dubois, Philippe
Raquez, Jean-Marie
Peponi, Laura
author2_role author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Shape memory
Thermally-activated
PLA/PCL blend
Nanocomposites
CNC
Química
Chemistry
topic Shape memory
Thermally-activated
PLA/PCL blend
Nanocomposites
CNC
Química
Chemistry
description In this work the thermally-activated shape memory response of biodegradable nanocomposites based on PLA/PCL blend reinforced with different type of cellulose nanocrystals has been reported, and compared with those of the neat matrix, at the same transition temperature of 55 °C and at the same different deformations, 50%, 100% and 150%. In particular, cellulose nanocrystals have been synthesized and then functionalized by "grafting from" reaction by ring opening polymerization of both PLLA and PCL using the &-OH groups onto the cellulose nanocrystals surface as initiators for the reaction. The morphology, thermal and mechanical analysis have been performed in order to obtain the parameters for the thermo-mechanical shape memory cycles. Moreover, the addition of the CNC-based nanofillers on the compatibility of PLA-PCL blends in 70:30 proportion has been evaluated. All the biodegradable nanocomposite formulations showed excellent shape memory response, similar to those of the neat matrix, with strain recovery ratio and strain fixity ratio higher than 80% and 90%, respectively. This fact indicates that in this case, the shape memory response of the nanocomposites is mainly controlled by the response of the neat blend and they are slightly influenced by the increase of compatibility between the components of the blend. In addition, all nanocomposite films were fully disintegrated under composting conditions confirming their biodegradable nature, obtaining that the presence of CNC-based nanofillers speeds up the disintegration rate of the nanocomposites in comparison with the pure matrix.
publishDate 2018
dc.date.none.fl_str_mv 2018
2018-04-10
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
NA
http://purl.org/coar/version/c_be7fb7dd8ff6fe43
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10017/43756
url http://hdl.handle.net/10017/43756
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-ShareAlike 4.0 International
http://creativecommons.org/licenses/by-nc-sa/4.0/
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
Attribution-NonCommercial-ShareAlike 4.0 International
http://creativecommons.org/licenses/by-nc-sa/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:e_Buah Biblioteca Digital Universidad de Alcalá
instname:Universidad de Alcalá (UAH)
instname_str Universidad de Alcalá (UAH)
reponame_str e_Buah Biblioteca Digital Universidad de Alcalá
collection e_Buah Biblioteca Digital Universidad de Alcalá
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300719

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