Grafeno e seus derivados: estudo das propriedades de superfície e processos de transferência para substratos poliméricos

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dc.contributor.advisorFechine, Guilhermino José Macêdo
dc.contributor.advisor1Latteshttp://lattes.cnpq.br/8109533360196619por
dc.contributor.authorCosta, Mariana Caldeira Ferraz da
dc.creator.Latteshttp://lattes.cnpq.br/4908088101369050por
dc.date.accessioned2018-05-04T12:44:02Z
dc.date.accessioned2020-05-28T18:07:38Z
dc.date.available2020-05-28T18:07:38Z
dc.date.issued2017-12-13
dc.description.abstractThis dissertation describes a study of surface properties of graphene obtained by chemical vapor deposition (CVD) to evaluate its hydrophobicity and wetting transparency of this material deposited onto several hard substrates, for instance silicon wafer, glass, etc. To this end, contact angle measurements and the calculation of polar and dispersive components were performed to these samples, submitted or not to a thermal treatment at inert atmosphere. Moreover, a study of the influence of factors that rule transfers processes grounded in Direct Dry Transfer (DDT) of two-dimensional materials (CVD graphene and graphene oxide - GO) onto polymeric surfaces of two or three dimensions was executed, such as surface properties and chemical structure to each materials (two-dimensional and polymers) and rheological properties of polymers. The results indicated graphene is hydrophobic and partially wetting transparent due to influences of the nature of substrates in which it is deposited. However, the thermal treatment at inert atmosphere altered significantly the surface properties of this material, indicating that, for graphene, such properties are strongly influenced by molecules adsorbed onto surface, achieving results very close to those presented in the literature. Talking about transfer processes of 2D materials onto polymers surfaces, the evaluation of surface properties demonstrated to be efficient in predicting the quality and quantity of CVD graphene transferred using DDT. However, factors such as rheological properties and chemical structure must be evaluated concomitantly. Lastly, the efficacy of a technique developed to cover polymer surfaces of three-dimensional substrates with graphene oxide using injection molding processing was presented.eng
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superiorpor
dc.description.sponsorshipFundo Mackenzie de Pesquisapor
dc.formatapplication/pdf*
dc.identifier.citationCOSTA, Mariana Caldeira Ferraz da. Grafeno e seus derivados: estudo das propriedades de superfície e processos de transferência para substratos poliméricos. 2017. 125 f. Dissertação( Engenharia de Materiais) - Universidade Presbiteriana Mackenzie, São Paulo.por
dc.identifier.urihttp://dspace.mackenzie.br/handle/10899/24238
dc.keywordsprocess transfer;eng
dc.keywordspolymereng
dc.keywordsgraphene and its derivativeseng
dc.keywordssurface propertieseng
dc.keywordsrheological propertieseng
dc.keywordschemical structureeng
dc.languageporpor
dc.publisherUniversidade Presbiteriana Mackenziepor
dc.rightsAcesso Abertopor
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectprocessos de transferênciapor
dc.subjectpolímeropor
dc.subjectgrafeno e seus derivadospor
dc.subjectpropriedades de superfíciepor
dc.subjectpropriedades reológicaspor
dc.subjectestrutura químicapor
dc.subject.cnpqCNPQ::ENGENHARIAS::ENGENHARIA DE MATERIAIS E METALURGICApor
dc.thumbnail.urlhttp://tede.mackenzie.br/jspui/retrieve/16580/Mariana%20Caldeira%20Ferraz%20da%20Costa.pdf.jpg*
dc.titleGrafeno e seus derivados: estudo das propriedades de superfície e processos de transferência para substratos poliméricospor
dc.typeDissertaçãopor
local.contributor.board1Matos, Christiano José Santiago de
local.contributor.board1Latteshttp://lattes.cnpq.br/6843256597783676por
local.contributor.board2Petri, Denise Freitas Siqueira
local.contributor.board2Latteshttp://lattes.cnpq.br/3916542418374036por
local.publisher.countryBrasilpor
local.publisher.departmentEscola de Engenharia Mackenzie (EE)por
local.publisher.initialsUPMpor
local.publisher.programEngenharia de Materiaispor
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