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Thermal expansivity and degradation properties of PLA/HA and PLA/ bTCP in vitro conditioned composites

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Thermal expansivity and degradation properties of PLA/HA and PLA/ bTCP in vitro conditioned composites

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dc.contributor.author Ferri, J. M. es_ES
dc.contributor.author Motoc, D. Luca es_ES
dc.contributor.author Ferrándiz Bou, Santiago es_ES
dc.contributor.author Balart, Rafael es_ES
dc.date.accessioned 2020-02-16T21:01:50Z
dc.date.available 2020-02-16T21:01:50Z
dc.date.issued 2019 es_ES
dc.identifier.uri http://hdl.handle.net/10251/137019
dc.description.abstract [EN] The objective of this study was to investigate the thermal expansivities and degradation properties for several in vitro conditioned biodegradable poly(lactic acid)/hydroxyapatite (PLA/HA) and poly(lactic acid)/b-tricalcium phosphate (PLA/ bTCP) composites with different mass% of the particle reinforcements (i.e. 10, 20 and 30). The samples were prepared by extrusion followed by injection moulding and incubated in a customized simulated body fluid at 37 C over 60, 90, 120, 150 and 180 days, respectively. Thermal expansion and degradation properties of in vitro conditioned samples, along with dynamic mechanical properties of unconditioned ones, were systematically investigated through coefficients of linear thermal expansion and thermal strain changes, decomposition temperatures, mass changes and per cent residues. The results indicated that PLA/bTCP composites performed better than PLA/HA composites, irrespective of their filler mass%, revealing high values of glass transition temperatures, around a mean value of 65 C, both on dynamic mechanical analysis and on dilatation measurements but lower values on their degradation temperatures, such as 360 C. The results suggest the feasibility of tailoring high-loaded osteoconductive fillers-reinforced PLA composites for various medical and engineering applications. es_ES
dc.language Inglés es_ES
dc.publisher Springer es_ES
dc.relation.ispartof Journal of Thermal Analysis and Calorimetry (Online) es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Poly(lactic acid) es_ES
dc.subject Hydroxyapatite es_ES
dc.subject B-Tricalcium phosphate es_ES
dc.subject Expansion es_ES
dc.subject Degradation es_ES
dc.subject.classification CIENCIA DE LOS MATERIALES E INGENIERIA METALURGICA es_ES
dc.subject.classification INGENIERIA DE LOS PROCESOS DE FABRICACION es_ES
dc.title Thermal expansivity and degradation properties of PLA/HA and PLA/ bTCP in vitro conditioned composites es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1007/s10973-019-08799-0 es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto de Tecnología de Materiales - Institut de Tecnologia de Materials es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Mecánica y de Materiales - Departament d'Enginyeria Mecànica i de Materials es_ES
dc.description.bibliographicCitation Ferri, JM.; Motoc, DL.; Ferrándiz Bou, S.; Balart, R. (2019). Thermal expansivity and degradation properties of PLA/HA and PLA/ bTCP in vitro conditioned composites. Journal of Thermal Analysis and Calorimetry (Online). 138(4):2691-2702. https://doi.org/10.1007/s10973-019-08799-0 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1007/s10973-019-08799-0 es_ES
dc.description.upvformatpinicio 2691 es_ES
dc.description.upvformatpfin 2702 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 138 es_ES
dc.description.issue 4 es_ES
dc.identifier.eissn 1588-2926 es_ES
dc.relation.pasarela S\393286 es_ES
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