Experimental Study of Sorption and Diffusion of n-Pentane in Polystyrene

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F13%3A43895659" target="_blank" >RIV/60461373:22340/13:43895659 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/49777513:23640/13:43918872

Výsledek na webu

<a href="http://pubs.acs.org/doi/abs/10.1021/je300916f" target="_blank" >http://pubs.acs.org/doi/abs/10.1021/je300916f</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/je300916f" target="_blank" >10.1021/je300916f</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Experimental Study of Sorption and Diffusion of n-Pentane in Polystyrene

Popis výsledku v původním jazyce

Polystyrene (PS) foams are widespread heat insulation and impact absorption materials, but many blowing agents used in their production are harmful to the environment. Pentane is a less harmful alternative and is commonly used in the manufacturing of expandable PS, but there are inadequate diffusion data of pentane in PS available in the literature at conditions relevant to PS impregnation and foaming. We conducted gravimetric measurements of sorption dynamics of n-pentane in PS particles and thin filmsat temperatures from 45 to 110 °C and pressures from 0 to 4.8 bar. The measured data were fitted using the Fick?s and case II diffusion models and the obtained transport parameters are presented together with an analysis of the dominant diffusion mechanism. We also present the Flory-Huggins interaction parameter for the PS + n-pentane system and show that it can be used to accurately predict the sorption equilibria. This paper thus provides important parameters for the optimization of P

Název v anglickém jazyce

Experimental Study of Sorption and Diffusion of n-Pentane in Polystyrene

Popis výsledku anglicky

Polystyrene (PS) foams are widespread heat insulation and impact absorption materials, but many blowing agents used in their production are harmful to the environment. Pentane is a less harmful alternative and is commonly used in the manufacturing of expandable PS, but there are inadequate diffusion data of pentane in PS available in the literature at conditions relevant to PS impregnation and foaming. We conducted gravimetric measurements of sorption dynamics of n-pentane in PS particles and thin filmsat temperatures from 45 to 110 °C and pressures from 0 to 4.8 bar. The measured data were fitted using the Fick?s and case II diffusion models and the obtained transport parameters are presented together with an analysis of the dominant diffusion mechanism. We also present the Flory-Huggins interaction parameter for the PS + n-pentane system and show that it can be used to accurately predict the sorption equilibria. This paper thus provides important parameters for the optimization of P

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CI - Průmyslová chemie a chemické inženýrství

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název periodika

Journal of Chemical Engineering Data

ISSN

0021-9568

e-ISSN

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Svazek periodika

58

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

15

Strana od-do

851-865

Kód UT WoS článku

000317553600004

EID výsledku v databázi Scopus

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