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Effects of Various Polyurethanes on the Mechanical and Structural Properties of an Epoxy Resin

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dc.title Effects of Various Polyurethanes on the Mechanical and Structural Properties of an Epoxy Resin en
dc.contributor.author Kostrzewa, Marcin
dc.contributor.author Hausnerová, Berenika
dc.contributor.author Bakar, Mohamed Abu
dc.contributor.author Siwek, E.
dc.relation.ispartof Journal of Applied Polymer Science
dc.identifier.issn 0021-8995 Scopus Sources, Sherpa/RoMEO, JCR
dc.date.issued 2011-03-05
utb.relation.volume 119
utb.relation.issue 5
dc.citation.spage 2925
dc.citation.epage 2932
dc.type article
dc.language.iso en
dc.publisher John Wiley & Sons, Inc. en
dc.identifier.doi 10.1002/app.32974
dc.relation.uri http://onlinelibrary.wiley.com/doi/10.1002/app.32974/abstract
dc.subject composites en
dc.subject mechanical properties en
dc.subject polyurethanes en
dc.subject resins en
dc.description.abstract Polyurethanes (PURs) obtained from poly( ethylene glycol)s (PEGs) and polyoxypropylene diols (POPDs) of different molecular weights were used as modifiers of diglycidyl ether of bisphenol A. The impact strength, critical stress intensity factor, stress, and strain during three-point bending were measured as functions of the PUR type and content. Scanning electron microscopy and infrared spectroscopy were employed for the structure and morphology analysis. The addition of 10 or 15% PUR to the epoxy resin resulted in the most enhanced mechanical properties. However, a modifier loading higher than 15% led to decreases in the impact strength, critical stress intensity factor, and flexural strength. Moreover, shorter flexible segments in PUR obtained from lower molecular weight PEG led to stronger composites, whereas composites containing PUR based on lower molecular weight POPD with long flexible segments exhibited higher toughness and strain at break and lower impact strength. (C) 2010 Wiley Periodicals, Inc. J Appl Polym Sci 119: 2925-2932, 2011 en
utb.faculty Faculty of Technology
dc.identifier.uri http://hdl.handle.net/10563/1002156
utb.identifier.rivid RIV/70883521:28110/11:00000892!RIV12-MSM-28110___
utb.identifier.obdid 43865032
utb.identifier.scopus 2-s2.0-78649919265
utb.identifier.wok 000285310400052
utb.identifier.coden JAPNA
utb.source j-wok
dc.date.accessioned 2011-08-16T15:06:35Z
dc.date.available 2011-08-16T15:06:35Z
utb.contributor.internalauthor Kostrzewa, Marcin
utb.contributor.internalauthor Hausnerová, Berenika
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