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Determination of Microstructural Characteristics of Advanced Biocompatible Nanofibrous Membranes.

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    SYSNO ASEP0502711
    Document TypeJ - Journal Article
    R&D Document TypeJournal Article
    Subsidiary JČlánek ve WOS
    TitleDetermination of Microstructural Characteristics of Advanced Biocompatible Nanofibrous Membranes.
    Author(s) Soukup, Karel (UCHP-M) RID, SAI, ORCID
    Hejtmánek, Vladimír (UCHP-M) RID, SAI
    Šolcová, Olga (UCHP-M) RID, ORCID, SAI
    Article number109328
    Source TitleMicroporous and Mesoporous Materials. - : Elsevier - ISSN 1387-1811
    Roč. 304, SEP 2020 (2020)
    Number of pages7 s.
    ActionInternational Workshop on Characterization of Porous Materials - From Angstroms to Millimeters (CPM) /8./
    Event date06.05.2018 - 09.05.2018
    VEvent locationDelray Beach, Florida
    CountryUS - United States
    Event typeWRD
    Languageeng - English
    CountryNL - Netherlands
    Keywordselectrospinning ; mass transfer ; Wicke-Kallenbach cell
    Subject RIVCI - Industrial Chemistry, Chemical Engineering
    OECD categoryChemical process engineering
    R&D ProjectsTE01020080 GA TA ČR - Technology Agency of the Czech Republic (TA ČR)
    TN01000048 GA TA ČR - Technology Agency of the Czech Republic (TA ČR)
    Method of publishingLimited access
    Institutional supportUCHP-M - RVO:67985858
    UT WOS000546913300012
    EID SCOPUS85061822497
    DOI10.1016/j.micromeso.2019.02.015
    AnnotationEffective transport properties of two biocompatible nanofibrous membranes—gelatin and chitosan—were evaluated using the gas transport measurement. The assessments involve the counter-current diffusion carried out both in Graham's and Wicke-Kallenbach cells under isothermal steady-state conditions. Additionally, the isothermal quasi-stationary gas permeation was also performed in modified Wicke-Kallenbach cell. It was found that the obtained transport characteristics reflect the gas transport mechanism which takes place predominantly in the continuum regime due to the prevailing macroporosity of the electrospun nanofibrous membranes. The gas permeation transport characteristics were evaluated from permeation cell measurements carried out at low pressures. The actual transport mechanism corresponded to the Knudsen flow dominating over continuous flow. The accuracy of the transport characteristics was estimated as the 95% confidence regions. It was confirmed that the confidence region shape of the optimized transport characteristics was intimately connected with the prevailing mass transport mechanism.
    WorkplaceInstitute of Chemical Process Fundamentals
    ContactEva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227
    Year of Publishing2021
    Electronic addresshttp://hdl.handle.net/11104/0294709
Number of the records: 1