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真空绝热,尤其是对夹层真空度要求较高的真空多层绝热,如何获得并长期保持所要求的夹层真空度,是设计、制造人员十分关心的一个问题。真空夹层中的吸附剂对于获得并长期保持夹层真空度具有十分重要的作用。夹层的真空度寿命在很大程度上取决于吸附剂的特性、装入量及其吸附作用能否充分发挥。吸附剂的特性对真空夹层真空度及其寿命的影响是一个研究得较少的课题。本文根据活性炭和5A分子筛在真空夹层条件下的吸附等温线等资料,对用“老练”机理活化处理活性碳
Vacuum insulation, especially the vacuum multi-layer insulation on the vacuum requirements of the interlayer, how to obtain and maintain the required vacuum for a long time is a problem which is very much concerned by designers and manufacturers. Adsorbents in vacuum interlayers play an important role in obtaining and maintaining interlayer vacuum over the long term. The vacuum life of the interlayer depends largely on the characteristics of the adsorbent, the loading capacity, and its adsorption capacity. The characteristics of adsorbent on the vacuum interlayer vacuum and its life is a less studied topic. In this paper, based on the adsorption isotherms of activated carbon and 5A molecular sieves under vacuum interlayers, the activated carbon