THE COMBINED EFFECTS OF RELATIVE HUMIDITY AND TEMPERATURE ON DIFFUSION IN HYDROPHILIC RAINWEAR - WATER VAPOR TRANSFER THROUGH A HYDROPHILIC FILM AT SUBZERO TEMPERATURES

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Authors
  1. Osczevski, R.J.
Corporate Authors
Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN)
Abstract
The water vapor diffusion resistance of the hydrophilic component of Gore-Tex (TRADEMARK) II is measured at temperatures down to -24C. The experiment is designed to simulate diffusion of water vapor through a clothing shell from a coating of ice on its inner surface. The permeability of the samples decreases exponentially with decreasing temperature; this variation is a combined effect of temperature and relative humidity. At subzero temperatures, water vapor transfer through this material is only a few percent of its room temperature value. Other hydrophilic films used in outdoor clothing are likely to be similarly affected.
Keywords
Gore-Tex
Report Number
DCIEM-94-34 — Reprint
Date of publication
01 Jan 1996
Number of Pages
7
Reprinted from
Textile Res J., vol 66, no 1, 1996, p 24-29
DSTKIM No
96-01929
CANDIS No
389690
Format(s):
Document Image stored on Optical Disk;Hardcopy

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