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dc.contributor.advisorTanoğlu, Metinen
dc.contributor.authorKaya, Elçin Dilek-
dc.descriptionThesis (Master)--Izmir Institute of Technology, Materials Science and Engineering, Izmir, 2006en
dc.descriptionIncludes bibliographical references (leaves 93-98)en
dc.descriptionText in English; Abstract: Turkish and Englishen
dc.descriptionxv, 98 leavesen
dc.description.abstractLayered silicate/polymer nanocomposites are materials that display rather unique properties, even at low silicate content, by comparison with more conventional particulate-filled polymers. These nanocomposites exhibit improved mechanical, thermal, optical, gas permeability resistance and fire retardancy properties when compared with the pure polymer.In this study, layered silicate/polymer nanocomposites were prepared using Na+ cation containing montmorillonite (MMT) and epoxy resins. Silicate particles were treated with hexadecyltrimethylammonium chloride (HTAC) to obtain the complete homogenous dispersion of the nano plaques within the polymer matrix which forms the exfoliated microstructure. In this way, organophilic silicates (OMMT) were obtained.Modification of the silicate expands the silicate galleries (from 14 to 18 )that promote the formation of exfoliated composite structure. SEM results showed that nanocomposites with organically modified MMT exhibited better dispersion than those with MMT. It was found that the tensile and flexural modulus values are increased, whereas the fracture toughness is decreased with increasing silicate content. Thermal analysis results revealed that the glass transition temperature(Tg) of the neat epoxy resin (63.6oC) increases to 68.9 oC for the nanocomposites with 3 wt. % of OMMT. By incorporation of silicate particles, the dynamic mechanical properties of epoxy; including the storage and loss modulus and Tg are increased. Optical transmission values of the epoxy were affected by MMT and OMMT silicate incorporation. It was found that flame resistance at the polymer improved by the incorporation of MMT particles to the neat epoxy.en
dc.publisherIzmir Institute of Technologyen
dc.publisherIzmir Institute of Technologyen_US
dc.subject.lccTA418.9.N35 .K233 2006en
dc.subject.lcshNanostructured materialsen
dc.subject.lcshEpoxy resinsen
dc.titleDevelopment of layered silicate/epoxy nanocompositeen_US
dc.typeMaster Thesisen_US
dc.institutionauthorKaya, Elçin Dilek-
dc.departmentIzmir Institute of Technology. Materials Science and Engineeringen
dc.departmentIzmir Institute of Technology. Materials Science and Engineeringen_US
item.openairetypeMaster Thesis-
item.fulltextWith Fulltext-
Appears in Collections:Master Degree / Yüksek Lisans Tezleri
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