Ação da radiação de alta energia nas propriedades mecânicas de compostos elastoméricos a base de SBR carregados com barita

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dc.contributor.advisorMiranda, Leila Figueiredo dept_BR
dc.contributor.advisor1Latteshttp://lattes.cnpq.br/0218222413589119por
dc.contributor.authorAlmeida, Jademir Jesus Pirapora dept_BR
dc.creator.Latteshttp://lattes.cnpq.br/7962494717861359por
dc.date.accessioned2016-03-15T19:36:37Z
dc.date.accessioned2020-05-28T18:07:25Z
dc.date.available2013-05-23pt_BR
dc.date.available2020-05-28T18:07:25Z
dc.date.issued2012-03-30pt_BR
dc.description.abstractIn this work were studied the action of ionizing radiation on the physical-mechanical properties in elastomeric compounds based on styrene-butadiene rubber (SBR) filled with barite, opening way for application of these composites in the protection and shield against high-energy radiation, in the form of aprons. These aprons come to substitute the elastomeric ones with lead filler in ergonomic and economically advantageous conditions. The effect of high-energy radiation was studied on SBR compounds filled with barite at 50, 75, 100, 125, and 150phr (phr = parts per hundred rubber) of barite concentrations, exposed to ionizing radiation at 0, 100, 200, 500 and 1000kGy doses. The samples were characterized by physic-mechanical tests as rheometry, tensile strength, resilience, hardness, wear resistance, oil absorption, permanent deformation under compression (compression set) and dynamic mechanical thermal analysis. The morphological characteristics were determined by scanning electron microscopy. The results showed that the radiation causes an increase in tensile strength and elongation, the tear strength and hardness, and a decrease in fluid absorção and deformation under compression.eng
dc.description.sponsorshipUniversidade Presbiteriana Mackenziept_BR
dc.formatapplication/pdfpor
dc.identifier.citationALMEIDA, Jademir Jesus Pirapora de. Ação da radiação de alta energia nas propriedades mecânicas de compostos elastoméricos a base de SBR carregados com barita. 2012. 116 f. Dissertação (Mestrado em Engenharia de Materiais) - Universidade Presbiteriana Mackenzie, São Paulo, 2012.por
dc.identifier.urihttp://dspace.mackenzie.br/handle/10899/24161
dc.languageporpor
dc.publisherUniversidade Presbiteriana Mackenziepor
dc.rightsAcesso Abertopor
dc.subjectSBRpor
dc.subjectbaritapor
dc.subjectradiação xpor
dc.subjectpropriedades mecânicaspor
dc.subjectpropriedades morfológicaspor
dc.subjectSBReng
dc.subjectbariteeng
dc.subjectx-radiationeng
dc.subjectmechanical propertieseng
dc.subjectmorphological propertieseng
dc.subject.cnpqCNPQ::ENGENHARIAS::ENGENHARIA DE MATERIAIS E METALURGICApor
dc.thumbnail.urlhttp://tede.mackenzie.br/jspui/retrieve/3605/Jademir%20Jesus%20Pirapora%20de%20Almeida.pdf.jpg*
dc.titleAção da radiação de alta energia nas propriedades mecânicas de compostos elastoméricos a base de SBR carregados com baritapor
dc.typeDissertaçãopor
local.contributor.board1Munhoz Junior, Antonio Hortênciopt_BR
local.contributor.board1Latteshttp://lattes.cnpq.br/8233884614933594por
local.contributor.board2Wiebeck, Héliopt_BR
local.contributor.board2Latteshttp://lattes.cnpq.br/7345295932741797por
local.publisher.countryBRpor
local.publisher.departmentEngenharia de Materiaispor
local.publisher.initialsUPMpor
local.publisher.programEngenharia de Materiaispor
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