Dispersion of hydroxyapatite nanoparticles in natural rubber latex and poly lactic acid based matrices

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversity of Queensland-
Autor(es): dc.creatorCesar, Mariana Biondi-
Autor(es): dc.creatorPoli, Hamish-
Autor(es): dc.creatorPiazza, Rodolfo Debone-
Autor(es): dc.creatorMarques, Rodrigo Fernando Costa-
Autor(es): dc.creatorHerculano, Rondinelli Donizetti-
Autor(es): dc.creatorGrøndahl, Lisbeth-
Data de aceite: dc.date.accessioned2025-08-21T21:54:15Z-
Data de disponibilização: dc.date.available2025-08-21T21:54:15Z-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2021-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1002/app.52165-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/230303-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/230303-
Descrição: dc.descriptionHydroxyapatite (HAp)-polymer composite materials are of interest for materials that interface with or substitute bone tissue. HAp nanoparticles (length 290 nm, width 56 nm) synthesized by a wet chemical method were incorporated (5 wt%) into natural rubber latex (NRL), poly lactic acid (PLA) and NRL/PLA (75/25) solvent cast films using three different methods: dry nanoparticles; a dispersion prepared from dry nanoparticles; a dispersion prepared through solvent exchange. Common to all composite materials were an improvement in the contact angle by 10%–13% and a reduction in the elongation at break from 430% to 330%–370%. Furthermore, the method of HAp incorporation influenced the properties of the material with the use of dioxane suspension improving the homogeneity of the films as evidenced from visual appearance and SEM. This led to slower water uptake and higher thermal stability with a shift in the PLA melting peak from 296°C to 334°C when compared to pure polymer and composites with poorly dispersed particle.-
Descrição: dc.descriptionBioprocess and Biotechnology Engineering Department School of Pharmaceutical Sciences São Paulo State University (UNESP)-
Descrição: dc.descriptionSchool of Chemistry and Molecular Biosciences University of Queensland-
Descrição: dc.descriptionLaboratory of Magnetic Materials and Colloids Department of Physical Chemistry Institute of Chemistry São Paulo State University (UNESP)-
Descrição: dc.descriptionBioprocess and Biotechnology Engineering Department School of Pharmaceutical Sciences São Paulo State University (UNESP)-
Descrição: dc.descriptionLaboratory of Magnetic Materials and Colloids Department of Physical Chemistry Institute of Chemistry São Paulo State University (UNESP)-
Idioma: dc.languageen-
Relação: dc.relationJournal of Applied Polymer Science-
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Título: dc.titleDispersion of hydroxyapatite nanoparticles in natural rubber latex and poly lactic acid based matrices-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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