Preparation and characterization of an epoxy resin modified by a combination of MDI-based polyurethane and montmorillonite
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F11%3A43865736" target="_blank" >RIV/70883521:28110/11:43865736 - isvavai.cz</a>
Výsledek na webu
<a href="http://dx.doi.org/10.1002/app.34347" target="_blank" >http://dx.doi.org/10.1002/app.34347</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/app.34347" target="_blank" >10.1002/app.34347</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Preparation and characterization of an epoxy resin modified by a combination of MDI-based polyurethane and montmorillonite
Popis výsledku v původním jazyce
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 compos
Název v anglickém jazyce
Preparation and characterization of an epoxy resin modified by a combination of MDI-based polyurethane and montmorillonite
Popis výsledku anglicky
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 compos
Klasifikace
Druh
J<sub>x</sub> - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
CEP obor
CD - Makromolekulární chemie
OECD FORD obor
—
Návaznosti výsledku
Projekt
—
Návaznosti
Z - Vyzkumny zamer (s odkazem do CEZ)
Ostatní
Rok uplatnění
2011
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Journal of Applied Polymer Science
ISSN
0021-8995
e-ISSN
—
Svazek periodika
122
Číslo periodika v rámci svazku
5
Stát vydavatele periodika
US - Spojené státy americké
Počet stran výsledku
11
Strana od-do
3237-3247
Kód UT WoS článku
000295538600045
EID výsledku v databázi Scopus
—