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Résumé :
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The permeation rate of water vapor through polycarbonate (PC) was examined. Permeability (P), diffusion (D), and solubility (S) coefficients were measured at temperatures ranging from 25 to 80 °C. P values remained almost constant over this temperature range. On the other hand, D values increased and S values decreased exponentially with temperature. These data represent a broad map of the mass-transport characteristics of water through PC, which can be used to estimate break-though times, permeation rates, absorption, desorption/outgassing, and moisture content over a wide range of temperature and humidity.
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