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Hygroscopic property of metal matrix composite desiccant.

[In Chinese. / En chinois.]

Author(s) : HU L., GE T., JIANG Y., et al.

Type of article: Article

Summary

The metal based composite adsorbent is made of composite adsorbent which is coated on the surface of the aluminum foil. Silica
gel with different particle size is used as the matrix for production of samples. It is found that, in experimental conditions, large particle size contributes to the improvement of the coating amount on the surface of the aluminum foil. The silica gel of preferred particle size is adopted to make samples, and a comparison study of composite adsorbent and single silica gel samples is made. When the samples are completely dried and the environment condition is kept constant, compared with silica gel, the maximum moisture uptake of composite adsorbent is 30% - 45% higher, within which the adsorption rate and maximum moisture uptake of lithium chloride composite adsorbent is higher than calcium chloride composite adsorbent. When the samples are not completely dried and the environment periodically changes from adsorption condition to desorption condition, the cycle adsorption amount of composite adsorbent is 70% - 120% higher than silica gel, and in high relative humjdity condjtions, calcium chloride composite adsorbent is higher than lithium chloride composite adsorbent.

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Pages: 69-75

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