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

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About: Preparation and characterization of an epoxy resin modified by a combination of MDI-based polyurethane and montmorillonite Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	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. 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. (en)
Title	Preparation and characterization of an epoxy resin modified by a combination of MDI-based polyurethane and montmorillonite Preparation and characterization of an epoxy resin modified by a combination of MDI-based polyurethane and montmorillonite (en)
skos:prefLabel	Preparation and characterization of an epoxy resin modified by a combination of MDI-based polyurethane and montmorillonite Preparation and characterization of an epoxy resin modified by a combination of MDI-based polyurethane and montmorillonite (en)
skos:notation	RIV/70883521:28110/11:43865736!RIV12-MSM-28110___
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MSM7088352101)
http://linked.open...iv/cisloPeriodika	5
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Hausnerová, Berenika Kostrzewa, Marcin
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Tomáše Bati ve Zlíně / Fakulta technologická
http://linked.open...dnocenehoVysledku	223031
http://linked.open...ai/riv/idVysledku	RIV/70883521:28110/11:43865736
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	polyurethane; nanocomposites; montmorillonite; mechanical properties; MDI; epoxy resin (en)
http://linked.open.../riv/klicoveSlovo	MDI mechanical properties epoxy resin nanocomposites montmorillonite polyurethane
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[942BFDBC057D]
http://linked.open...i/riv/nazevZdroje	Journal of Applied Polymer Science
http://linked.open...in/vavai/riv/obor	CD
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	122
http://linked.open...iv/tvurceVysledku	Hausnerová, Berenika Kostrzewa, Marcin Bakar, Mohamed Abu Pajak,, Karolina
http://linked.open...ain/vavai/riv/wos	000295538600045
http://linked.open...n/vavai/riv/zamer	Multifunctional Composite Systems Based on Natural and Synthetic Polymers
issn	0021-8995
number of pages	11 (xsd:int)
http://bibframe.org/vocab/doi	10.1002/app.34347
http://localhost/t...ganizacniJednotka	28110

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