Transport v porézních částicích polyolefinů - experimenty a modelování

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F08%3A00020728" target="_blank" >RIV/60461373:22340/08:00020728 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Transport in porous polyolefin particles - experiments and modeling

Popis výsledku v původním jazyce

Sorptions and desorptions of propylene in PP film by large pressure steps were carried out to verify if Fick's diffusion with estimated concentration dependency of diffusion coefficient from small step desorptions is capable to describe even these experiments. However, a very different transport behavior was found. The most important is the difference of the rates of sorption and desorption made by the pressure step between 1 and 25 bar of propylene. The rate of sorption is significantly faster than therate of desorption. In contrast, small step sorption and desorption didn't reveal such a behavior, that is, they have the same dynamics. Four transport models of penetrant in polymer were tested with respect to measured sorption and desorption characteristics. However, none of the considered models was capable to describe quantitatively the whole set of measured data.

Název v anglickém jazyce

Transport in porous polyolefin particles - experiments and modeling

Popis výsledku anglicky

Sorptions and desorptions of propylene in PP film by large pressure steps were carried out to verify if Fick's diffusion with estimated concentration dependency of diffusion coefficient from small step desorptions is capable to describe even these experiments. However, a very different transport behavior was found. The most important is the difference of the rates of sorption and desorption made by the pressure step between 1 and 25 bar of propylene. The rate of sorption is significantly faster than therate of desorption. In contrast, small step sorption and desorption didn't reveal such a behavior, that is, they have the same dynamics. Four transport models of penetrant in polymer were tested with respect to measured sorption and desorption characteristics. However, none of the considered models was capable to describe quantitatively the whole set of measured data.

Druh

D - Stať ve sborníku

CEP obor

CI - Průmyslová chemie a chemické inženýrství

OECD FORD obor

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Projekt

<a href="/cs/project/GA104%2F07%2F1127" target="_blank" >GA104/07/1127: Matematické modelování a experimentální studium utváření meso-skopické struktury polymerních materiálů</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2008

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of 35th International Conference of Slovak Society of Chemical Engineering

ISBN

978-80-227-2903-1

ISSN

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e-ISSN

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Počet stran výsledku

12

Strana od-do

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Název nakladatele

Slovak society of chemical engineering

Místo vydání

Bratislava

Místo konání akce

Tatranské Matliare

Datum konání akce

26. 5. 2008

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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