Effect of clay type on dispersion and barrier properties of hydrophobically modified poly(vinyl alcohol)-bentonite nanocomposites [PDF]
, 2015 The oxygen and water vapor permeability at high relative humidity was studied for composite films formed by incorporation of three different bentonites (MMT) into an ethylene-modified, water-soluble poly(vinyl alcohol), EPVOH.
Alexandre +31 more
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Gas transport and separation with ceramic membranes. Part II: Synthesis and separation properties of microporous membranes [PDF]
, 1992 Non-supported microporous silica (amorphous) and titania thin films were made by the polymeric gel route. The titania system consisted of particles smaller than 5 nm.
Burggraaf, A.J. +2 more
core +3 more sources
Role of Sorption Isotherms in the Analysis of Coupled Heat and Mass Fluxes in Porous Media [PDF]
, 2005 The aim of this work is to show the importance of the sorption isotherms in the study of the heat and mass fluxes in unsaturated porous media. General forms of the heat and mass fluxes are presented in terms of experimentally accessible quantities.
Reis, A. Heitor, Rosa, Rui
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Water vapor permeability of edible starch based films
Journal of Food Engineering, 2007 Fil: Bertuzzi, Maria Alejandra. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Salta. Instituto de Investigaciones para la Industria Quimica. Universidad Nacional de Salta. Facultad de Ingenieria.
Bertuzzi, Maria Alejandra +3 more
openaire +2 more sources
Elucidating two-phase transport in a polymer electrolyte fuel cell, Part 1: Characterizing flow regimes with a dimensionless group [PDF]
, 2011 This paper explores the through-/in-plane characteristics of water transport in the cathode gas diffusion layer (GDL) of a polymer electrolyte fuel cell (PEFC). Theoretical analysis is performed on the non-isothermal two-phase flow under flow channels. A
Chen, KS, Wang, Y
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Antibacterial activity of gelatin/copper (II)-exchanged montmorillonite films [PDF]
, 2016 Cu (II) - exchanged montmorillonite (Cu2+MMt) was prepared, characterized and introduced into a bovine gelatin (Ge) matrix via a dissolution-intercalation method to get antibacterial nanocomposite films.
Martucci, Josefa Fabiana +1 more
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Thermophysiological Comfort by PA6/TiO2 Nanocomposite Yarns [PDF]
, 2013 Thermophysiological comfort is one of the most important factors for people to choose desirable gar-ments, which can be evaluated via measuring permeability of body heat and sweat.
Dastjerdi, R. +2 more
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Advanced Engineering Materials, EarlyView.Freeze‐drying of layered silicate is the key to get coatings with superior gas barrier. Freeze‐drying of layered silicates modified with dodecylamine (DDA) is a highly effective technique for the preparation of barrier pigments that significantly mitigate the permeation of oxygen, water vapor, and hydrogen through polymer films containing these ...
Joshua Lommes +4 more
wiley +1 more source
WATER VAPOR PERMEABILITY OF POROUS MEDIA
Canadian Journal of Physics, 1959 Following the analogy between the laws of heat conduction and vapor diffusion, two theoretical expressions for the thermal conductivity of a composite medium are applied to the water vapor permeability coefficient of certain porous media. It is shown that both expressions reduce to a form very similar to the empirical relationships found by Penman and
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Through-plane water distribution in a polymer electrolyte fuel cell: Comparison of numerical prediction with neutron radiography data [PDF]
, 2010 A multidimensional mathematical model is presented for simulating the coupled phenomena of gaseous fuel/reactant flows, species (including liquid water) transport, heat transfer, hydrogen oxidation, and oxygen reduction reactions in a polymer electrolyte
Chen, KS, Wang, Y
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