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dc.contributor.authorRigo, Eliana Cristina da Silvapt_BR
dc.contributor.authorSantos, Luis Alberto dospt_BR
dc.contributor.authorVercik, Luci Cristina de Oliveirapt_BR
dc.contributor.authorGarcía Carrodeguas, Raúlpt_BR
dc.contributor.authorBoschi, Anselmo Ortegapt_BR
dc.date.accessioned2013-11-08T01:47:02Zpt_BR
dc.date.issued2007pt_BR
dc.identifier.issn0327-0793pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/80104pt_BR
dc.description.abstract“Dual-setting” calcium phosphate cements (DS-CPCs), characterized by a polymerization reaction that proceeds along with the conventional hydraulic setting, were prepared and studied. Acrylamide (AA), 2-hydroxyethyl methacrylate (HEMA), and N-vinyl-2-pyrrolydone (VP) in 5, 10, and 20 wt./vol.-% were added to the liquid of α- tricalcium phosphate (α-TCP) and tetracalcium phosphate/dicalcium phosphate anhydrous (TTCP/ DCPA) conventional cements. N,N’-methylenebisacrylamide was used as cross linking agent. N,N,N´,N´-tetramethylethylendiamine in the liquid, and ammonium persulfate in the powder, were employed as polymerization catalyst and initiator, respectively. Diametral tensile strength (DTS), setting time, phase composition, conversion rate, and microstructure of the DS-CPC were compared with those of non-added cements. The DTS increased 22 % for α-TCP and 85 % for TTCP/DCPA DS-CPCs by adding 20 wt./vol.-% AA. The HEMA and VP had no positive effect on DTS. The extent of the hydraulic setting reaction for α-TCP DS-CPC was only slightly decreased by the addition of 20 wt./vol.-% of AA to the mixing liquid.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofLatin american applied research = Pesquisa aplicada latinoamericana = Investigación aplicada latinoamericana. Bahía Blanca, AG. vol. 37, no. 4 (oct./dic. 2007), p. 267-274pt_BR
dc.rightsOpen Accessen
dc.subjectDualsettingen
dc.subjectCimento de fosfato tricálcicopt_BR
dc.subjectCalcium phosphate cementen
dc.subjectHidroxiapatitapt_BR
dc.subjectBiomateriaispt_BR
dc.subjectα-tricalcium phosphateen
dc.subjectTetracalcium phosphateen
dc.subjectHydroxyapatiteen
dc.titleAlpha-tricalcium phosphate- and tetracalcium phosphate/dicalcium phosphate-based dual settingpt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb000661601pt_BR
dc.type.originEstrangeiropt_BR


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