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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/57097
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dc.creatorCríssia Carem Paiva Fontainhapt_BR
dc.creatorL. O. Fariapt_BR
dc.creatorAnnibal Theotonio Baptista Netopt_BR
dc.creatorAdelina P. Santospt_BR
dc.date.accessioned2023-07-27T20:07:11Z-
dc.date.available2023-07-27T20:07:11Z-
dc.date.issued2016-01-11-
dc.citation.volume19pt_BR
dc.citation.spage91pt_BR
dc.citation.epage99pt_BR
dc.identifier.doihttps://doi.org/10.1590/1980-5373-MR-2015-0576pt_BR
dc.identifier.issn19805373pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/57097-
dc.description.resumoPoly(vinylidene fluoride – tryfluorethylene) [P(VDF-TrFE)] copolymers were mixed with zirconia nanoparticles. The investigation was conducted with the intention to produce nanocompounds with potential to be used as protective patient shielding in radiological procedures. Polymer based nanocomposites with 1, 2, 3, 5 and 10 wt% of ZrO2 nanoparticles were prepared using sol-gel route with zirconium butoxide as the precursor for zirconium oxide nanoclusters. UV-Vis and FTIR spectrometry and differential scanning calorimetry (DSC) were used to characterize the composite samples. We observed a more homogeneous distribution of ZrO2 nanoparticles encapsulated by methyl methacrylate (MMA) into the polymeric matrix, when compared to composites made without the use of surface modifiers from methacrylate group. Apparently, this property is related to the absence of the strong MMA absorption band at 1745 cm-1, attributed to C=O bond, in the P(VDF-TrFE)/ZrO2-MMA nanocomposites. The radiation damage due to high dose exposuring was performed for gamma doses ranging from 100 kGy to 1,000 kGy. The radiation shielding characterization conducted using x-rays with effective energy of 40 keV has demonstrated that composites with 10% of ZrO2, and only 1.0 mm thick, can attenuate 60% of the x-rays beam.pt_BR
dc.format.mimetypepdfpt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentMED - DEPARTAMENTO DE ANATOMIA E IMAGEMpt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofMaterials Research-
dc.rightsAcesso Abertopt_BR
dc.subjectP(VDF-TrFE)/ZrO2pt_BR
dc.subjectZrO2pt_BR
dc.subjectMMA polymer compositespt_BR
dc.subjectNanoparticlespt_BR
dc.subjectRadiation protective shieldingpt_BR
dc.subject.otherNanoparticulaspt_BR
dc.subject.otherProtetores contra Radiaçãopt_BR
dc.titleP(VDF-TrFE)/ZrO2 Polymer-Composites for X-ray Shieldingpt_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://www.scielo.br/j/mr/a/ZZFnb9nNR8H9djdw5pXX8Rn/?lang=enpt_BR
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