Diffusion of penetrants in porous and compact polyolefins

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F09%3A00022865" target="_blank" >RIV/60461373:22340/09:00022865 - isvavai.cz</a>
Result on the web
—
DOI - Digital Object Identifier
—

Result language
angličtina
Original language name
Diffusion of penetrants in porous and compact polyolefins
Original language description
The objective of this study is the transport of low molecular weight penetrants, such as ethylene, propylene and 1-hexene, in compact polyethylene (PE) or polypropylene (PP). Gravimetric sorption/desorption measurements were conducted in order to obtaintransport characteristics as the time-dependence of the mass of sorbed species. Sorption and desorption characteristics were measured as responses to small and large pressure steps of penetrants. Small pressure steps covered the pressure range of interest and obtained transport characteristics provided the information about the concentration dependence of penetrant diffusivity in polymer. Penetrant diffusivities in compact polyolefin films, particles or threads were estimated by means of the simple model based on Fick?s diffusion. We provide short motivation for our study from the point of view of fundamental understanding of the problem. Moreover, we discuss current state-of-the-art of this problematic and explain the sources of large
Czech name
—
Czech description
—

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2009
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Sborník prací ze semináře Reakční a transportní jevy III
ISBN
978-80-7080-725-5
ISSN
—
e-ISSN
—
Number of pages
9
Pages from-to
—
Publisher name
VŠCHT Praha
Place of publication
Praha
Event location
Jablonec nad Nisou
Event date
Jun 10, 2009
Type of event by nationality
CST - Celostátní akce
UT code for WoS article
—

Similar results(10)