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首页> 外文期刊>Polymer: The International Journal for the Science and Technology of Polymers >Effects of organoclay soxhlet extraction on mechanical properties, flammability properties and organoclay dispersion of polypropylene nanocomposites
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Effects of organoclay soxhlet extraction on mechanical properties, flammability properties and organoclay dispersion of polypropylene nanocomposites

机译：有机粘土索氏萃取对聚丙烯纳米复合材料力学性能，可燃性和有机粘土分散性的影响

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摘要

The organic treatment on a layered silicate using in nanocomposite synthesis is the interface between the hydrophilic layered silicate (clay) and hydrophobic polymer in the case of polypropylene. However, the typical synthesis of an organoclay can result in excess organic treatment which can hinder mechanical and flammability benefits. This excess organic treatment may result in plasticization of the polymer matrix, possibly removing some of the mechanical and flammability property benefits provided by the nanocomposite. In this paper, the effects of using Soxhlet Extraction on the Organoclays after synthesis was investigated. Soxhlet extraction times on organoclays were found to have an effect on the mechanical and flammability properties of the resulting polypropylene nanocomposite. The removal of excess organic treatment by Soxhelt extraction resulted in improvements in flex modulus, improved clay dispersion, delayed time to ignition, and lowered heat release rate during burning.
机译：在聚丙烯复合材料中，在纳米复合材料合成中对层状硅酸盐进行的有机处理是亲水性层状硅酸盐（粘土）和疏水性聚合物之间的界面。然而，有机粘土的典型合成会导致过度的有机处理，这会阻碍机械和可燃性的益处。这种过量的有机处理可能导致聚合物基质的增塑，可能消除纳米复合材料提供的一些机械和可燃性优点。本文研究了索氏提取法对合成后有机粘土的影响。发现在有机粘土上的索氏提取时间对所得聚丙烯纳米复合材料的机械和可燃性具有影响。通过Soxhelt萃取去除多余的有机处理剂，可以改善挠曲模量，改善粘土分散性，延迟点火时间并降低燃烧过程中的放热速率。

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