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Preparation and characterization of an epoxy resin modified by a combination of MDI-based polyurethane and montmorillonite

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dc.title Preparation and characterization of an epoxy resin modified by a combination of MDI-based polyurethane and montmorillonite en
dc.contributor.author Kostrzewa, Marcin
dc.contributor.author Hausnerová, Berenika
dc.contributor.author Bakar, Mohamed Abu
dc.contributor.author Paja̧k, Karolina
dc.relation.ispartof Journal of Applied Polymer Science
dc.identifier.issn 0021-8995 Scopus Sources, Sherpa/RoMEO, JCR
dc.date.issued 2011
utb.relation.volume 122
utb.relation.issue 5
dc.citation.spage 3237
dc.citation.epage 3247
dc.type article
dc.language.iso en
dc.publisher Wiley-Blackwell en
dc.identifier.doi 10.1002/app.34347
dc.relation.uri http://onlinelibrary.wiley.com/doi/10.1002/app.34347/full
dc.subject epoxy resin en
dc.subject MDI en
dc.subject mechanical properties en
dc.subject montmorillonite en
dc.subject nanocomposites en
dc.subject polyurethane en
dc.description.abstract The present work investigates the modification of epoxy resin by using a combination of nanoclay (montmorillonite-Cloisite 30B) and a liquid polymeric modifier (polyurethane). Polyurethane was obtained from 4,4′- diphenylmethane diisocyanate and polydiols with different molecular weight: polyethylene glycol (PEG 400) and polyoxypropylene diols with molecular weight 1000 g/mol and 2000 g/mol. The impact strength, the critical stress intensity factor as well as the flexural strength were evaluated as functions of modifiers content. The obtained results showed that hybrid composites exhibit enhanced mechanical properties without significant changes of the glass transition temperature. FTIR analysis showed that chemical reactions took place between the hydroxyl groups of epoxy resin and the isocyanate groups of polyurethane, explaining an improvement of the mechanical properties of epoxy resin. However, XRD results demonstrated the formation of an exfoliated structure for the hybrid compositions with both polyurethane and montmorillonite. Copyright © 2010 Wiley Periodicals, Inc. en
utb.faculty Faculty of Technology
dc.identifier.uri http://hdl.handle.net/10563/1002593
utb.identifier.rivid RIV/70883521:28110/11:43865736!RIV12-MSM-28110___
utb.identifier.obdid 43865752
utb.identifier.scopus 2-s2.0-80052407256
utb.identifier.wok 000295538600045
utb.identifier.coden JAPNA
utb.source j-scopus
dc.date.accessioned 2012-02-10T13:15:09Z
dc.date.available 2012-02-10T13:15:09Z
utb.contributor.internalauthor Kostrzewa, Marcin
utb.contributor.internalauthor Hausnerová, Berenika
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