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俄罗斯研制出以食用盐为原料的消防材料
发布日期：2016-11-26 11:33:38浏览量：650
近日，一种新型的环保消防材料由俄罗斯萨马拉技术大学研制成功。这些微粒有很好的灭火效果，燃烧时只形成氯化物、水、氮和二氧化碳，其化学成分对人体和环境几乎无害。为此，科研人员同时开发出专门的扩散器。
近日，一种新型的环保消防材料由俄罗斯萨马拉技术大学研制成功。俄科研人员研制的泡沫具有很好的环保性，几乎是无害的。灭火泡沫的成分是悬浮在氮气和二氧化碳中的氯化钾和氯化钠微粒，类似于食用盐的成分。这些微粒有很好的灭火效果，燃烧时只形成氯化物、水、氮和二氧化碳，其化学成分对人体和环境几乎无害。
俄科研人员选择氯化物，是因为氯化物具有很低的熔化热，能很好地阻止物质的燃烧链。但要使这些混合粉末成为泡沫，还要对其进行燃烧，而燃烧的温度达900摄氏度。为此，科研人员同时开发出专门的扩散器。扩散器喷出粉末时候，加热了形成粉末的微粒，而粉末本身的温度降低7到8倍，从而使出口处泡沫的温度不超过200摄氏度。这一温度符合俄罗斯国家技术标准。
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