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dc.contributor.advisorTanoğlu, Metinen
dc.contributor.authorPekşen Özer, Bahar Başaken
dc.date.accessioned2014-07-22T13:52:42Z
dc.date.available2014-07-22T13:52:42Z
dc.date.issued2008en
dc.identifier.urihttp://hdl.handle.net/11147/3924
dc.descriptionThesis (Master)--Izmir Institute of Technology, Materials Science and Engineering, Izmir, 2008en
dc.descriptionIncludes bibliographical references (leaves: 56-60)en
dc.descriptionText in English; Abstract: Turkish and Englishen
dc.descriptionviii, 60 leavesen
dc.description.abstractIn this study, a novel epoxy nanocomposite with electrical conductivity and having improved mechanical and thermal properties was synthesized. Carbon black/ epoxy composites and carbon black-layered clay/epoxy nanocomposites were prepared by mixing via 3-roll mill. The first type of the composite was produced to determine the percolation threshold concentration (Vc). The second type with constant carbon black concentration, slightly over Vc, was synthesized to investigate the influence of clay content on the thermal, mechanical, electrical and structural properties of nanocomposites. Carbon black used in the study was extra conductive filler with 30 nm spherical particles. Layered clay was Na+ Montmorillonite treated with ditallow dimethlyamine to assure better intercalation within the epoxy resin. Vc value was determined to be 0.2 vol% and 0.25 vol% carbon black was added together with varying clay contents to the epoxy system to produce nanocomposites. Only the nanocomposites with 0.5 vol. % clay loading showed electrical conductivity. However, the composites with higher clay loadings showed insulating behaviour due to hindrance of carbon black network by clay layers. According to the XRD results, nanocomposites exhibited some extent of exfoliation. It was found that tensile modulus values of the epoxy increased;however flexural modulus values remained constant, with increasing clay content.Elastic modulus of neat epoxy (3.7 GPa) was increased about 28 % with 0.5 vol% clay addition. Thermomechanical analysis results revealed that the storage modulus, glass transition temperature and initial degradation temperature of epoxy was slightly enhanced due to clay loading.en
dc.language.isoengen
dc.publisherIzmir Institute of Technologyen
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subject.lccTA418.9.N35 P37 2008en
dc.subject.lcshNanostructured materialsen
dc.subject.lcshComposite materialsen
dc.subject.lcshCarbon compositesen
dc.titleDevelopment of carbon black-layered clay/epoxy nanocompositesen
dc.typemasterThesisen
dc.contributor.departmentIzmir Institute of Technology. Materials Science and Engineeringen
dc.relation.publicationcategoryTezen_US


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