Kompatibilizace PS/EPDM blendu pomocí extruze za přítomnosti ultrazvuku

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

In Situ Compatibilization of PS/EPDM Blends via Ultrasonic Extrusion

Popis výsledku v původním jazyce

This paper presents a novel compatibilization method, where ultrasonic oscillations are applied onto PS/EPDM blends during extrusion in order to improve their interfacial adhesion. Emphasis was given on the effect of the ultrasonic radiation on mechanical properties, phase morphology and rheological response of the blend. As mechanical tests revealed, impact-strength of the PS/EPDM rises at first with increasing ultrasonic intensity indicating improved interactions between both phases. However, slight decrease of blend#s toughness was observed at very high ultrasonic intensity, indicating prevail of degradation process over compatibilization effect. Complex viscosity of the irradiated blend was found to be higher in comparison with the untreated extrudate, but it decreased again with longer time of irradiation and increasing intensity. Concerning phase morphology, SEM analysis showed that ultrasonic oscillations cause size reduction of tough EPDM particles distributed in the brittle PS

Název v anglickém jazyce

In Situ Compatibilization of PS/EPDM Blends via Ultrasonic Extrusion

Popis výsledku anglicky

This paper presents a novel compatibilization method, where ultrasonic oscillations are applied onto PS/EPDM blends during extrusion in order to improve their interfacial adhesion. Emphasis was given on the effect of the ultrasonic radiation on mechanical properties, phase morphology and rheological response of the blend. As mechanical tests revealed, impact-strength of the PS/EPDM rises at first with increasing ultrasonic intensity indicating improved interactions between both phases. However, slight decrease of blend#s toughness was observed at very high ultrasonic intensity, indicating prevail of degradation process over compatibilization effect. Complex viscosity of the irradiated blend was found to be higher in comparison with the untreated extrudate, but it decreased again with longer time of irradiation and increasing intensity. Concerning phase morphology, SEM analysis showed that ultrasonic oscillations cause size reduction of tough EPDM particles distributed in the brittle PS

Druh

D - Stať ve sborníku

CEP obor

CI - Průmyslová chemie a chemické inženýrství

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2005

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

2005 Prague Meetings on Macromolecules - Current and Future Trends in Polymeric Materials

ISBN

80-85009-51-X

ISSN

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e-ISSN

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Počet stran výsledku

1

Strana od-do

"SL17"

Název nakladatele

Institute of Macromolecular Chemistry of the Academy of Sciences of the Czech Republic

Místo vydání

Prague

Místo konání akce

Prague, Czech republic

Datum konání akce

25. 6. 2005

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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