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首页> 外文期刊>Journal of Materials Science >Room temperature processing of epoxy-clay nanocomposites
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Room temperature processing of epoxy-clay nanocomposites

机译:环氧粘土纳米复合材料的室温加工

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摘要

Polymer/Clay nanocomposites consisting of an epoxy matrix filled with nanolayered silicate clay particles have been investigated. Recent and ongoing research has shown that dramatic enhancements can be achieved in mechanical and thermal properties by adding a small volume percent of clays. In the present work nanocomposites are processed by mechanical mixing of epoxy with organoclays and unmodified clays using a high speed electric shear mixer at room temperature. The addition of different organoclay wt% [1-3, 5 and 10] indicates good enhancement in hardness, dynamic mechanical properties, and also the molecular mobility of the polymer is reduced by the presence of the silicate layers, which in turn causes large stiffness improvements. X-ray diffraction (XRD) results show the intercalation/exfoliation of clays in the epoxy matrix. The influence of organoclay restricts the weight loss at varying temperatures. Experiments show improved elastic modulus for both modified and unmodified clays. (C) 2004 Kluwer Academic Publishers.
机译:已经研究了由填充有纳米层状硅酸盐粘土颗粒的环氧树脂基质组成的聚合物/粘土纳米复合材料。最近和正在进行的研究表明,通过添加少量的粘土,可以在机械和热性能方面取得显着提高。在本工作中,纳米复合材料是通过在室温下使用高速电动剪切混合器将环氧树脂与有机粘土和未改性粘土进行机械混合来加工的。添加不同的有机粘土wt%[1-3、5和10]表示硬度,动态机械性能得到了很好的提高,并且由于存在硅酸盐层,聚合物的分子迁移率也降低了,从而导致了较大的硬度改进。 X射线衍射(XRD)结果表明粘土在环氧基质中的嵌入/剥离。有机粘土的影响限制了温度变化下的重量损失。实验表明改性和未改性粘土的弹性模量均得到改善。 (C)2004 Kluwer学术出版社。

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