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胶水在瓶中变硬了怎么办
更新时间: 2019-05-06 00:00:00  

扔掉。硬了表示已经由小分子聚合高分子化合物了,即不可用。胶水在瓶内凝固原因为:瓶口没盖紧,瓶内胶水挥发。放置时间长,超过保质期。

胶水是连接两种材料的中间体,多以水剂出现,属于精细化工类,种类繁多,主要以粘料、物理形态、硬化方法和被粘物材质来进行分类。

关键词: 胶水 怎么办

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