Abstract Three techniques for determining the hydrogen permeation properties of rubber samples were developed based on the volumetric and gravimetric measurements of released H2 gas after sample decompression. These methods include gas chromatography (GC) by thermal desorption analysis (TDA), volumetric collection (VC) measurement of hydrogen by graduated cylinder and gravimetric (GM) measurement by electronic balance. By measuring the released hydrogen against elapsed time after the decompression of pressure, the charging amount (C0) and diffusivity (D) were obtained with the developed diffusion analysis program. From these values, the solubility (S) and permeability (P) of polymers were evaluated through the relations of Henry’s law and P = S D , respectively. The developed techniques were applied to three kinds of spherically shaped sealing rubber materials. D, S and P were analyzed as a function of pressure. The transport behaviors obtained in the three methods are discussed and compared with the characteristics of each measuring technique. The correlations between transport parameters and carbon black filler or density are discussed.

中文翻译：

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密封橡胶材料透氢评价技术

摘要 基于样品减压后释放的 H2 气体的体积和重量测量，开发了三种测定橡胶样品氢渗透性能的技术。这些方法包括通过热解吸分析 (TDA) 进行的气相色谱 (GC)、通过量筒进行的氢气体积收集 (VC) 测量和通过电子天平进行的重量 (GM) 测量。通过测量减压后经过的时间释放的氢气，利用开发的扩散分析程序获得充电量 (C0) 和扩散率 (D)。根据这些值，聚合物的溶解度 (S) 和渗透率 (P) 分别通过亨利定律和 P = SD 的关系进行评估。将开发的技术应用于三种球形密封橡胶材料。D、S 和 P 被分析为压力的函数。讨论了在三种方法中获得的传输行为，并与每种测量技术的特性进行了比较。讨论了传输参数与炭黑填料或密度之间的相关性。