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首页> 外文期刊>Journal of Applied Polymer Science >Water Diffusion and Permeability in Unsaturated Polyester Resin Films Characterized by Measurements Performed with a Water-Specific Permeameter:Analysis of the Transient Permeation
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Water Diffusion and Permeability in Unsaturated Polyester Resin Films Characterized by Measurements Performed with a Water-Specific Permeameter:Analysis of the Transient Permeation

机译：水不饱和聚酯树脂薄膜的水扩散和渗透性，其特征在于使用特定于水的渗透仪进行的测量：瞬态渗透分析

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A water-specific permeameter was developed to study water diffusion in an unsaturated polyester;these polyesters are often used as high-barrier materials.Low water enrichment of a dry sweeping gas is measured via the dew point temperature,with two hygrometers,one of which is used because of its fast response and the other because of its accuracy.This high-performance device is just as suited to pervaporation as to permeation tests and allowas the transient and stationary fluxes to be characterized.At first sight,the experimental data seem in good agreement with D = D_(oe)~(#gamma#c).However,a more thorough study has shown a time-dependence of D.
机译：为了研究不饱和聚酯中的水扩散，开发了一种水渗透率计，这些聚酯常被用作高阻隔材料。通过两个湿度计，通过露点温度测量干燥吹扫气体的低水富集度。由于其响应速度快，而又因精度高而被使用。该高性能设备既适合渗透测试，也适合渗透测试，并允许表征瞬态和静态通量。与D = D_（oe）〜（＃gamma＃c）的一致性很好。但是，更深入的研究表明D与时间有关。

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