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首页> 外文会议>Fall Technical Meeting of the Rubber Division, American Chemical Society >POLYDIMETHYLSILOXANE NANOCOMPOSITES WITH VARIOUS ORGANIC AND INORGANIC FIBROUS NANOFILLERS: MORPHOLOGY-PROPERTY CORRELATION
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POLYDIMETHYLSILOXANE NANOCOMPOSITES WITH VARIOUS ORGANIC AND INORGANIC FIBROUS NANOFILLERS: MORPHOLOGY-PROPERTY CORRELATION

机译：具有各种有机和无机纤维​​纳米填料的聚二甲基硅氧烷纳米复合材料：形态学性质相关性

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Among various elastomers, polydimethylsiloxane is versatile owing to exotic compilation of properties such as low temperature flexibility, high thermal stability, incredible surface properties and even excellent biocompatibility. However, it finds limited use in some instances where strength is a critical parameter. Hence, this work aims at improving the mechanical and dynamic mechanical of the vulcanizates by integrating various fibrous nanofillers of organic and inorganic origin. In this piece of work, four different nanofiller systems viz., sepiolite, carbon nanofiber, hydroxyapatite and fibrous nanosilica as the reinforcing agent were compared. We pursued the nanocomposite preparation through in situ polymerization technique. Dispersion was found to be an important aspect which governed the property enhancement of the nanocomposites. The extent of dispersion of the various nanofillers was inspected through morphology analysis by High Resolution Transmission Electron Microscopy (HRTEM) studies. These results were correlated with the improvement of tensile strength, tensile and storage modulus of the nanocomposites and explained in terms of increased interaction of the hybrid materials, due to collective non-bonding forces of attraction (such as hydrogen bonding) between the components.
机译：在各种弹性体中，通过诸如低温柔韧性，高热稳定性，令人难以置信的表面特性和甚至优异的生物相容性，聚二甲基硅氧烷是多功能的。然而，它发现在一些实例中的存在有限的使用，其中强度是关键参数。因此，这项工作旨在通过整合各种纤维纳米填充物的有机和无机来源来改善硫化酸的机械和动态机械。在这一件作品中，比较了四种不同的纳米填充物系统。比较了Sepiolite，碳纳米纤维，羟基磷灰石和纤维状纳米磷酸盐作为增强剂。我们通过原位聚合技术追求纳米复合材料制备。发现分散体是治理纳米复合材料的性能增强的一个重要方面。通过高分辨率透射电子显微镜（HRTEM）研究通过形态分析检查各种纳米填料的分散程度。这些结果与纳米复合材料的抗拉强度，拉伸和储存模量的提高相关，并根据组分之间的吸引力（例如氢键合）的集体非粘合力增加，以杂交材料的相互作用而解释。

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