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Description
| - 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 matrix
- 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 matrix (en)
- Tato práce se zabývá novým způsobem kompatibilizace polymerního blendu PS/EPDM při kterém se využívá ultrazvuku ke snížení mezifázového napětí. Speciální pozornost byla věnována efektu ultrazvuku na mechanické vlastnosti, morfologii a reologické chování blendu. Testování mechanických vlastností prokázalo, že rázová houževnatost PS/EPDM blendu zprvu roste s rostoucí intenzitou ultrazvuku, což může být přičítáno zlepšené interakci obou složek. Při velmi vysokých intenzitách však byl pozorován pokles rázové houževnatosti způsobený pravděpodobně převládnutím degradačního mechanismu. Komplexní viskosita blendu po ozáření vzrostla, avšak byl zjištěn její pokles v případě dlouhých ozařovacích časů a vysokých intenzit ultrazvuku. Skenovací elektronová mikroskopie prokázala zmenšení EPDM domén v PS matrici po ozáření a tím i příznivý vliv ultrazvukového záření na kompatibilitu blendu. (cs)
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Title
| - In Situ Compatibilization of PS/EPDM Blends via Ultrasonic Extrusion
- Kompatibilizace PS/EPDM blendu pomocí extruze za přítomnosti ultrazvuku (cs)
- In Situ Compatibilization of PS/EPDM Blends via Ultrasonic Extrusion (en)
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skos:prefLabel
| - In Situ Compatibilization of PS/EPDM Blends via Ultrasonic Extrusion
- Kompatibilizace PS/EPDM blendu pomocí extruze za přítomnosti ultrazvuku (cs)
- In Situ Compatibilization of PS/EPDM Blends via Ultrasonic Extrusion (en)
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skos:notation
| - RIV/70883521:28110/05:63503798!RIV06-MSM-28110___
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http://linked.open.../vavai/riv/strany
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/70883521:28110/05:63503798
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - ultrasonic radiation; blend; compatibilization; viscoelastic properties; interfacial tension (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...ontrolniKodProRIV
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http://linked.open...v/mistoKonaniAkce
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http://linked.open...i/riv/mistoVydani
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http://linked.open...i/riv/nazevZdroje
| - 2005 Prague Meetings on Macromolecules - Current and Future Trends in Polymeric Materials
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...UplatneniVysledku
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http://linked.open...iv/tvurceVysledku
| - Hausnerová, Berenika
- Slezák, Radek
- Guo, Shaoyun
- Li, Jiang
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http://linked.open...vavai/riv/typAkce
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http://linked.open.../riv/zahajeniAkce
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http://linked.open...n/vavai/riv/zamer
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number of pages
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http://purl.org/ne...btex#hasPublisher
| - Ústav makromolekulární chemie AV ČR
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https://schema.org/isbn
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http://localhost/t...ganizacniJednotka
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is http://linked.open...avai/riv/vysledek
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