Si-TCP synthesized from Mg-free reagents employed as calcium phosphate cement

Si-TCP synthesized from Mg-free reagents employed as calcium phosphate cement

Autor Motisuke, Mariana Autor UNIFESP Google Scholar
Carrodeguas, Raul García Google Scholar
Zavaglia, Cecília Amélia de Carvalho Google Scholar
Instituição Universidade Federal de São Paulo (UNIFESP)
Universidade Estadual de Campinas (UNICAMP)
Resumo The influence of silicon doping on calcium phosphate cement were explored in this work. α-TCP and Si-α-TCP were prepared by solid state reaction employing Mg-free CaHPO4, CaCO3 and CaSiO3 as precursors. It was possible to obtain TCP powders with low contents of β phase as contaminant. Cement liquid phase was an aqueous solution containing 2.5 wt. (%) of Na2HPO4 and 1.5 wt. (%) of citric acid. The liquid-to-powder ratio was 0.6 mL.g-1. Chemical, physical and mechanical properties of the cement samples were determined by means of XRD, FTIR, XRF, compressive strength and SEM. The calcium phosphate cements obtained achieved satisfactory properties; however, Si-α-TCP presented a decrease on the rate of setting reaction.
Palavra-chave calcium phosphate cements
Si-doped calcium phosphates
bioceramics
Idioma Inglês
Financiador Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
INCT-Biofabris
Data de publicação 2012-08-01
Publicado em Materials Research. ABM, ABC, ABPol, v. 15, n. 4, p. 568-572, 2012.
ISSN 1516-1439 (Sherpa/Romeo, fator de impacto)
Publicador ABM, ABC, ABPol
Extensão 568-572
Fonte http://dx.doi.org/10.1590/S1516-14392012005000087
Direito de acesso Acesso aberto Open Access
Tipo Artigo
Web of Science WOS:000308134300014
SciELO S1516-14392012000400014 (estatísticas na SciELO)
Endereço permanente http://repositorio.unifesp.br/handle/11600/7234

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