MEASURING OF WATER VAPOUR DIFFUSION OF NANOFIBRE TEXTILES

1 ČERNOHORSKÝ Martin
Co-authors:
1 SEMERÁK Petr 1 TICHÁ Petra 1 HAVRLÍK Michal
Institution:
1 Department of Physics, Faculty of Civil Engineering Czech Technical University in Prague, Czech Republic, EU, martin.cernohorsky@fsv.cvut.cz, semerakp@fsv.cvut.cz, petra.ticha@fsv.cvut.cz, michal.havrlik@fsv.cvut.cz
Conference:
8th International Conference on Nanomaterials - Research & Application, Hotel Voronez I, Brno, Czech Republic, EU, October 19th - 21st 2016
Proceedings:
Proceedings 8th International Conference on Nanomaterials - Research & Application
Pages:
319-323
ISBN:
978-80-87294-71-0
ISSN:
2694-930X
Published:
17th March 2017
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
73 views / 22 downloads
Abstract

Properties related to moisture vapor transmission rate through membrane are important in many branches also in building constructions. This article deals with comparison two methods of measurement water vapour diffusion flow through nanofiber textiles. One of the parameters for comparison of different sheet materials for its ability to brake the water vapour is an equivalent air layer thickness value Sd. The equivalent air layer thickness Sd [m] expresses the thickness of the air layer, which would have the same diffusion resistance as the measured material in certain thickness. It is necessary to choose the appropriate measurement method for determining the value Sd with diffusion open materials such as nanofiber materials. This article compares the outcomes of two measurement methods – Dry Cup Method according to EN ISO 12 572 and Tube Method. The measurements were carried out on a sample from nanofiber textiles based on PUR.

Keywords: nanofiber textiles, moisture vapor transmission rate, PUR, dry cup method

© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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