Peponi, L.; Sessini, V.; Arrieta, MP.; Navarro-Baena, I.; Sonseca Olalla, Á.; Dominici, F.; Giménez Torres, E.... (2018). Thermally-activated shape memory effect on biodegradable nanocomposites based on PLA/PCL blend reinforced with hydroxyapatite. Polymer Degradation and Stability. 151:36-51. https://doi.org/10.1016/j.polymdegradstab.2018.02.019
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/145982
Title:
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Thermally-activated shape memory effect on biodegradable nanocomposites based on PLA/PCL blend reinforced with hydroxyapatite
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Author:
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Peponi, Laura
Sessini, V.
Arrieta, Marina Patricia
Navarro-Baena, Iván
Sonseca Olalla, Águeda
Dominici, F.
Giménez Torres, Enrique
Torre, L.
Tercjak, Agnieszka
López García, Daniel
Kenny, J.M.
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UPV Unit:
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Universitat Politècnica de València. Departamento de Ingeniería Mecánica y de Materiales - Departament d'Enginyeria Mecànica i de Materials
Universitat Politècnica de València. Instituto de Tecnología de Materiales - Institut de Tecnologia de Materials
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Issued date:
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Abstract:
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[EN] In this work, the effect of the addition of different amount of nanosized hydroxyapatite (nHA) on the shape memory behavior of blends based on poly (lactic acid) (PLA) and poly (epsilon-caprolactone) (PCL) has been ...[+]
[EN] In this work, the effect of the addition of different amount of nanosized hydroxyapatite (nHA) on the shape memory behavior of blends based on poly (lactic acid) (PLA) and poly (epsilon-caprolactone) (PCL) has been studied. In particular PLA/PCL blend with 70 wt % PLA has been reinforced with 0.5, 1 and 3 wt % nHA. Moreover, the relationship between the morphology and the final properties of the nanocomposites has been investigated by field emission scanning electron microscopy, confocal Raman spectroscopy and atomic force microscopy. In particular, PeakForce has been used to study quantitative nanomechanical properties of the multifunctional materials leading to conclusion that nHA increase the phase separation between PLA and PCL as well as act as reinforcements for the PCL-rich phase of the nanocomposites. Furthermore, excellent thermally-activated shape memory response has been obtained for all the nanocomposites at 55 degrees C. Finally, the disintegration under composting conditions at laboratory scale level was studied in order to confirm the biodegradable character of these nanocomposites. Indeed, these materials are able to be used for biomedical issues as well as for packaging applications where both thermally-activated shape memory effect and biodegradability are requested.
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Subjects:
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Biodegradable blends
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PLA
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PCL
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Nanocomposites
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Nanosized hydroxyapatite
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Shape memory
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Copyrigths:
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Reserva de todos los derechos
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Source:
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Polymer Degradation and Stability. (issn:
0141-3910
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DOI:
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10.1016/j.polymdegradstab.2018.02.019
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Publisher:
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Elsevier
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Publisher version:
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https://doi.org/10.1016/j.polymdegradstab.2018.02.019
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Project ID:
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info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2017-88123-P/ES/ESTUDIO DE NUEVOS MATERIALES INTELIGENTES BASADOS EN NANOCOMPUESTOS POLIMERICOS MULTIFUNCIONALES CON MEMORIA DE FORMA/
info:eu-repo/grantAgreement/CAM//S2013%2FMIT-2862/
info:eu-repo/grantAgreement/MINECO//FJCI-2014-20630/ES/FJCI-2014-20630/
info:eu-repo/grantAgreement/MINECO//RYC-2014-15595/ES/RYC-2014-15595/
info:eu-repo/grantAgreement/CSIC//I-Link1149/ES/Multifunctional bionanocomposites with shape memory properties for possible application as biomedical devices/
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Thanks:
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Authors thank the Spanish Ministry of Economy, Industry and Competitiveness, MINEICO, (MAT2017-88123-P) and the Regional Government of Madrid (S2013/MIT-2862) for the economic support. M.P.A. and L.P. acknowledge the Juan ...[+]
Authors thank the Spanish Ministry of Economy, Industry and Competitiveness, MINEICO, (MAT2017-88123-P) and the Regional Government of Madrid (S2013/MIT-2862) for the economic support. M.P.A. and L.P. acknowledge the Juan de la Cierva (FJCI-2014-20630) and Ramon y Cajal (RYC-2014-15595) contracts from the MINEICO, respectively. The authors also thanks CSIC for the I-Link project (I-Link1149).
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Type:
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Artículo
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