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

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	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 films at temperatures from 45 to 110 °C and pressures from 0 to 4.8bar. 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 PS foam production. 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 films at temperatures from 45 to 110 °C and pressures from 0 to 4.8bar. 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 PS foam production. (en)
Title	Experimental Study of Sorption and Diffusion of n-Pentane in Polystyrene Experimental Study of Sorption and Diffusion of n-Pentane in Polystyrene (en)
skos:prefLabel	Experimental Study of Sorption and Diffusion of n-Pentane in Polystyrene Experimental Study of Sorption and Diffusion of n-Pentane in Polystyrene (en)
skos:notation	RIV/49777513:23640/13:43918872!RIV14-MSM-23640___
http://linked.open...avai/riv/aktivita	P S
http://linked.open...avai/riv/aktivity	P(ED2.1.00/03.0088), P(GAP106/10/1912), S
http://linked.open...iv/cisloPeriodika	4
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Gregor, Tomáš
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Západočeská univerzita v Plzni / Nové technologie - výzkumné centrum
http://linked.open...dnocenehoVysledku	74113
http://linked.open...ai/riv/idVysledku	RIV/49777513:23640/13:43918872
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	gas solubility; chain molecules; statistical thermodynamics; solvent systems; polymer-solutions; molecular-weight dependence; glass-transaction temperature; biaxially oriented polystyrene; free-volume theory; Case-II diffusion (en)
http://linked.open.../riv/klicoveSlovo	Case-II diffusion biaxially oriented polystyrene chain molecules free-volume theory gas solubility glass-transaction temperature molecular-weight dependence polymer-solutions solvent systems statistical thermodynamics
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[633852BCA7B3]
http://linked.open...i/riv/nazevZdroje	Journal of chemical and engineering data
http://linked.open...in/vavai/riv/obor	CI
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Morphology-dependent sorption and diffusion of penetrants in polymers Centre of the New Technologies and Materials
http://linked.open...UplatneniVysledku	2013
http://linked.open...v/svazekPeriodika	58
http://linked.open...iv/tvurceVysledku	Gregor, Tomáš Hajová, Hana Kosek, Juraj Nistor, Andra Chmelař, Josef
http://linked.open...ain/vavai/riv/wos	000317553600004
issn	0021-9568
number of pages	15 (xsd:int)
http://bibframe.org/vocab/doi	10.1021/je300916f
http://localhost/t...ganizacniJednotka	23640

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