Rubber: Butyl (IIR), Low Compression Set and Low Moisture/Gas Permeability, 65 to 75 Type A Hardness, for Seals in Desiccated or Other Systems Requiring Resistance to Gas and/or Water Vapor Permeation

2019 ◽  
Author(s):  
Keyword(s):  
Water Vapor ◽  
Gas Permeability ◽  
Type A ◽  
Compression Set ◽  
Vapor Permeation ◽  
Water Vapor Permeation

Uncertainty Evaluation of the New Setup for Measurement of Water-Vapor Permeation Rate by a Dew-Point Sensor

2012 ◽  
Vol 33 (8-9) ◽  
pp. 1595-1605 ◽  
Author(s):  
D. Hudoklin ◽  
J. Šetina ◽  
J. Drnovšek
Keyword(s):  
Water Vapor ◽  
Permeation Rate ◽  
Dew Point ◽  
Uncertainty Evaluation ◽  
Vapor Permeation ◽  
Water Vapor Permeation

Selective water vapor permeation from steam/non-condensable gas mixtures via organosilica membranes at moderate-to-high temperatures

2019 ◽  
Vol 589 ◽  
pp. 117254 ◽  
Author(s):  
Norihiro Moriyama ◽  
Hiroki Nagasawa ◽  
Masakoto Kanezashi ◽  
Toshinori Tsuru
Keyword(s):  
Water Vapor ◽  
High Temperatures ◽  
Gas Mixtures ◽  
Vapor Permeation ◽  
Water Vapor Permeation

Characterization of pressure-sensitive adhesives. II. Water vapor permeation studies

1985 ◽  
Vol 30 (3) ◽  
pp. 1167-1171 ◽  
Author(s):  
Juey H. Lai ◽  
Richard B. Douglas ◽  
David Y. Chang
Keyword(s):  
Water Vapor ◽  
Pressure Sensitive Adhesives ◽  
Vapor Permeation ◽  
Pressure Sensitive ◽  
Permeation Studies ◽  
Water Vapor Permeation

The Effect of Thermal Reduction on the Water Vapor Permeation in Graphene Oxide Membranes

2014 ◽  
Vol 1 (8) ◽  
pp. 1400250 ◽  
Author(s):  
Konstantinos S. Andrikopoulos ◽  
Giannis Bounos ◽  
Dimitrios Tasis ◽  
Lamprini Sygellou ◽  
Vassilios Drakopoulos ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Water Vapor ◽  
Thermal Reduction ◽  
Vapor Permeation ◽  
Oxide Membranes ◽  
Water Vapor Permeation ◽  
Graphene Oxide Membranes

Water-vapor permeation in semicrystalline and molten poly(octadecyl acrylate)

2001 ◽  
Vol 39 (10) ◽  
pp. 979-984 ◽  
Author(s):  
Z. Mogri ◽  
D. R. Paul
Keyword(s):  
Water Vapor ◽  
Vapor Permeation ◽  
Water Vapor Permeation

Water vapor permeation behavior of interfacially polymerized polyamide thin film on hollow fiber membrane substrate

2016 ◽  
Vol 60 ◽  
pp. 623-635 ◽  
Author(s):  
Muhammad Irshad Baig ◽  
Pravin G. Ingole ◽  
Won Kil Choi ◽  
Seong Ryong Park ◽  
Eun Chul Kang ◽  
...  
Keyword(s):  
Thin Film ◽  
Water Vapor ◽  
Hollow Fiber ◽  
Hollow Fiber Membrane ◽  
Fiber Membrane ◽  
Vapor Permeation ◽  
Water Vapor Permeation

The grafting of recycled polyol from waste polyurethane foam onto new polyurethane and its impact on shape recovery and water vapor permeation

2017 ◽  
Vol 18 (5) ◽  
pp. 842-851 ◽  
Author(s):  
Ha Youn Kim ◽  
Jae Won Choi ◽  
Yong-Chan Chung ◽  
Byoung Chul Chun
Keyword(s):  
Water Vapor ◽  
Polyurethane Foam ◽  
Shape Recovery ◽  
Vapor Permeation ◽  
Water Vapor Permeation

scholarly journals Desiccant Films Made of Low-Density Polyethylene with Dispersed Silica Gel—Water Vapor Absorption, Permeability (H2O, N2, O2, CO2), and Mechanical Properties

Materials ◽  
2019 ◽  
Vol 12 (14) ◽  
pp. 2304 ◽  
Author(s):  
Sängerlaub ◽  
Kucukpinar ◽  
Müller
Keyword(s):  
Water Vapor ◽  
Silica Gel ◽  
Water Vapor Pressure ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Water Vapor Absorption ◽  
Vapor Permeation ◽  
Vapor Absorption ◽  
Effective Water ◽  
Water Vapor Permeation

Silica gel is a well-known desiccant. Through dispersion of silica gel in a polymer, films can be made that absorb and desorb water vapor. The water vapor absorption becomes reversible by exposing such films to a water vapor pressure below that of the water vapor pressure during absorption, or by heating the film. The intention of this study was to achieve a better understanding about the water vapor absorption, permeability (H2O, N2, O2, CO2), and mechanical properties of films with dispersed silica gel. Low-density polyethylene (PE-LD) monolayer films with a nominal silica gel concentration of 0.2, 0.4, and 0.6 g dispersed silica gel per 1 g film (PE-LD) were prepared and they absorbed up to 0.08 g water vapor per 1 g of film. The water vapor absorption as a function of time was described by using effective diffusion coefficients. The steady state (effective) water vapor permeation coefficients of the films with dispersed silica gel were a factor of 2 to 14 (8.4 to 60.2·10−12 mg·cm·(cm²·s·Pa)−1, 23 °C) higher than for pure PE-LD films (4.3·10−12 mg·cm·(cm²·s·Pa)−1, 23 °C). On the other hand, the steady state gas permeabilities for N2, O2, and CO2 were reduced to around one-third of the pure PE-LD films. An important result is that (effective) water vapor permeation coefficients calculated from results of sorption and measured by permeation experiments yielded similar values. It has been found that it is possible to describe the sorption and diffusion behavior of water by knowing the permeability coefficient and the sorption capacity of the film (Peff.≈Seff.·Deff.). The tensile stress changed only slightly (values between 10 and 14 N mm−²), while the tensile strain at break was reduced with higher nominal silica gel concentration from 318 length-% (pure PE-LD film) to 5 length-% (PE-LD with 0.6 g dispersed silica gel per 1 g film).

Water vapor permeation through topical films on a moisture‐releasing skin Model

2020 ◽  
Author(s):  
Fatemeh Keshavarzi ◽  
Saeed Zajforoushan Moghaddam ◽  
Malene Barré Pedersen ◽  
Nina Østergaard Knudsen ◽  
Shadi Jafarzadeh ◽  
...  
Keyword(s):  
Water Vapor ◽  
Skin Model ◽  
Vapor Permeation ◽  
Water Vapor Permeation
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