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首页> 美国卫生研究院文献>Polymers >The Stability of Intercalated Sericite by Cetyl Trimethylammonium Ion under Different Conditions and the Preparation of Sericite/Polymer Nanocomposites
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The Stability of Intercalated Sericite by Cetyl Trimethylammonium Ion under Different Conditions and the Preparation of Sericite/Polymer Nanocomposites

机译：十六烷基三甲基铵离子在不同条件下插层绢云母的稳定性及绢云母/聚合物纳米复合材料的制备

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Layered silicates are suitable for use as fillers in nanocomposites based on their particular features, such as large aspect ratio, easy availability, and chemical resistance. Among them, sericite is distinguished for its higher aspect ratio, higher resilience, and ultraviolet shielding and absorption. Previously, sericite was structure-modified and intercalated by CTAB to expand its interlayer space. The intercalated sericite seems promising for use in the fabrication of polymer/sericite composites or pillared sericite. However, special attention should be paid to the stability of the intercalated sericite because the CTAB inside the layer may be de-intercalated, which would affect the interlayer spacing and its surface properties. In this article, the stability of the sericite intercalated by CTAB was tested by changing different variables, such as different washing solvents, different temperatures, ultrasonic cleaning, and different solution conditions. Finally, sericite/polymer nanocomposites were produced with the stable intercalated sericite, and showed excellent properties compared with pure epoxy resin.
机译：层状硅酸盐基于其特殊特征（例如长宽比大，易获得性和耐化学性），适合用作纳米复合材料的填料。其中，绢云母以高长径比，较高的回弹性以及紫外线屏蔽和吸收而著称。以前，绢云母通过CTAB进行结构修饰和嵌入，以扩展其层间空间。插层绢云母似乎有望用于制造聚合物/绢云母复合材料或柱状绢云母。但是，应特别注意插层绢云母的稳定性，因为层内的CTAB可能会脱嵌，这会影响层间间距及其表面性能。在本文中，通过改变不同的变量（例如，不同的洗涤溶剂，不同的温度，超声清洗和不同的溶解条件）来测试CTAB插入的绢云母的稳定性。最终，制备了具有稳定的插层绢云母的绢云母/聚合物纳米复合材料，与纯环氧树脂相比显示出优异的性能。

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