Measuring of Equivalent Air Layer Thickness of Nanofibre Textiles

Martin Černohorský; Petr Semerák; Petra Tichá

doi:10.4028/www.scientific.net/KEM.714.192

Paper Titles

Experimental Determination of the Influence of an Air Entraining Additive on the Resistance of Concrete to Chemical Defrosting Agents
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Evaluation of Permeability Tests of Surface Layer of Concrete of Various Composition
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Design of Methodology for Non-Destructive Testing of Steel-Reinforced-Fiber-Concrete
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Diagnosis of Myslinka Stone Railway Bridge
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Measuring of Equivalent Air Layer Thickness of Nanofibre Textiles
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Characterisation of Micoorganism from Individual Layers of the Building Envelope (ETICS) and Methods of their Sampling
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Long Term Measuring of Expansions and Contractions of Pre-Stressed Concrete Bridge Structure
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The Properties of Historical Wrought Iron Tie Rods
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Repairs of Steel Structures after Long-Term Use in Aggressive Environment
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 714Measuring of Equivalent Air Layer Thickness of...

Measuring of Equivalent Air Layer Thickness of Nanofibre Textiles

Abstract:

This article deals with selecting the appropriate method of measurement water vapour diffusion through nanofibre textiles. Parameter for comparison of different sheet materials for its ability to brake the water vapour is a equivalent air layer thickness value S_d. The equivalent air layer thickness S_d [m] expresses the equivalent air layer thickness of the air layer, which would have the same diffusion resistance as the thickness of the measured material. It is necessary to choose the appropriate measurement method for determining the value S_d with diffusion open materials such as nanofibre materials. This article compares the outcomes of two measurement methods – Dry Cup Method and Tube Method. The measurements were carried out on a sample from nanofibre textiles based on PVDF.

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Periodical:

Key Engineering Materials (Volume 714)

Pages:

192-195

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.714.192

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Online since:

September 2016

Authors:

Martin Černohorský*, Petr Semerák, Petra Tichá

Keywords:

Equivalent Air Layer Thickness, Nanofiber Textile, PVDF

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References

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