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Determination of Microstructural Characteristics of Advanced Biocompatible Nanofibrous Membranes.

SYSNO ASEP	0502711
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Determination 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 number	109328
Source Title	Microporous and Mesoporous Materials. - : Elsevier - ISSN 1387-1811 Roč. 304, SEP 2020 (2020)
Number of pages	7 s.
Action	International Workshop on Characterization of Porous Materials - From Angstroms to Millimeters (CPM) /8./
Event date	06.05.2018 - 09.05.2018
VEvent location	Delray Beach, Florida
Country	US - United States
Event type	WRD
Language	eng - English
Country	NL - Netherlands
Keywords	electrospinning ; mass transfer ; Wicke-Kallenbach cell
Subject RIV	CI - Industrial Chemistry, Chemical Engineering
OECD category	Chemical process engineering
R&D Projects	TE01020080 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 publishing	Limited access
Institutional support	UCHP-M - RVO:67985858
UT WOS	000546913300012
EID SCOPUS	85061822497
DOI	10.1016/j.micromeso.2019.02.015
Annotation	Effective 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.
Workplace	Institute of Chemical Process Fundamentals
Contact	Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227
Year of Publishing	2021
Electronic address	http://hdl.handle.net/11104/0294709

Number of the records: 1