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Development of solid super desiccants based on a polymeric superabsorbent hydrogel composite

机译:基于聚合物超吸收水凝胶复合材料的固体超干燥剂的研制

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摘要

A solid super desiccant was developed based on the concept of impregnating a super liquid hygroscopic agent in a superabsorbent polymer to take advantage of the vast vapour absorption capacity of the hygroscopic agent and the liquid withholding capacity of the superabsorbent polymer. The maximum hygroscopic salt loading was determined based on different salt concentrations in sodium polyacrylate. The newly developed desiccant showed a vapor absorption capacity of 276 +/- 20%, which is superior in comparison to that of conventional solid desiccants such as silica gel, activated alumina and molecular sieves. Thus they have great potential in applications requiring solid desiccants such as desiccant cooling, air conditioning, storage of moisture sensitive materials, and dehydration of natural gas.
机译:基于浸渍超吸收性聚合物中的超级液体吸湿剂的概念开发了一种固体超级干燥剂,以利用吸湿剂的巨大蒸气吸收能力和超吸收性聚合物的液体预扣容能力。 基于聚丙烯酸钠中的不同盐浓度测定最大吸湿盐载荷。 新开发的干燥剂显示出蒸汽吸收能力为276 +/-20%,与常规固体干燥剂如硅胶,活性氧化铝和分子筛相比,其优异。 因此,它们具有很大的潜力,需要固体干燥剂,例如干燥剂冷却,空调,储水材料储存,以及天然气的脱水。

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  • 来源
    《RSC Advances》 |2015年第73期|共8页
  • 作者单位

    Univ Ottawa Dept Chem &

    Biol Engn Ottawa ON K1N 6N5 Canada;

    Univ Ottawa Dept Chem &

    Biol Engn Ottawa ON K1N 6N5 Canada;

    Univ Ottawa Dept Chem &

    Biol Engn Ottawa ON K1N 6N5 Canada;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

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