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高分子分散剂是什么?它的作用有哪些?

作者:admin 发布日期: 2019-09-23 二维码分享

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 高分子分散剂

作用:分子中含有聚合物,分子量在100010000。可紧密牢固地结合在颜料粒子表面,达到高效率的覆盖,厚度约10μm,其可溶剂化部分有效地扩展到分散介质中,形成立体屏障作用,提供立体稳定势垒。

       高分子分散剂现在已有不同类型的产品。其中嵌段型高分子分散剂具有优良的效果,即A-B嵌段型。

它具有:(1)与颜料表面吸附或键合的锚基;

             (2)与成膜物质良好相容性的溶剂化部分。