High Molecular Weight and High Melt Strength PP Blends Foaming

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F12%3A43869376" target="_blank" >RIV/70883521:28110/12:43869376 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/70883521:28610/12:43869376

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

High Molecular Weight and High Melt Strength PP Blends Foaming

Popis výsledku v původním jazyce

Generally, morphology of polymer foams represented by bubble size and density is influenced by properties of source material and processing condition. Rheological property is one of a key factor in foaming process which can be changed by processing condition as well as material modification. In this study, polypropylene (PP) having high molecular weight was physical blended with high melt strength grade using a twin screw extruder. The elongational viscosity of tested materials was measured out on extensional rheometer. PP foams were prepared in high pressure vessel using supercritical carbon dioxide (SC-CO2) as a blowing agent. Various blends were foamed under different temperatures and constant pressure controlled by high pressure pump. The morphology of foam was investigated using scanning electron microscope (SEM). The results show that PP foam structures were influenced by the modification of source materials as well as foaming conditions and the strain hardening behavior is more

Název v anglickém jazyce

High Molecular Weight and High Melt Strength PP Blends Foaming

Popis výsledku anglicky

Generally, morphology of polymer foams represented by bubble size and density is influenced by properties of source material and processing condition. Rheological property is one of a key factor in foaming process which can be changed by processing condition as well as material modification. In this study, polypropylene (PP) having high molecular weight was physical blended with high melt strength grade using a twin screw extruder. The elongational viscosity of tested materials was measured out on extensional rheometer. PP foams were prepared in high pressure vessel using supercritical carbon dioxide (SC-CO2) as a blowing agent. Various blends were foamed under different temperatures and constant pressure controlled by high pressure pump. The morphology of foam was investigated using scanning electron microscope (SEM). The results show that PP foam structures were influenced by the modification of source materials as well as foaming conditions and the strain hardening behavior is more

Druh

D - Stať ve sborníku

CEP obor

CD - Makromolekulární chemie

OECD FORD obor

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Projekt

<a href="/cs/project/ED2.1.00%2F03.0111" target="_blank" >ED2.1.00/03.0111: Centrum polymerních systémů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název statě ve sborníku

PLASTKO 2012

ISBN

978-80-7454-137-7

ISSN

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e-ISSN

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Počet stran výsledku

7

Strana od-do

1-7

Název nakladatele

Univerzita Tomáše Bati ve Zlíně

Místo vydání

Zlín

Místo konání akce

Zlín

Datum konání akce

11. 4. 2012

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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