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SiC Nanofibres Produced by the Combustion Synthesis as the Nanocomposites Fillers

机译：燃烧合成制备的SiC纳米纤维作为纳米复合填料

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摘要

The aim of this work is to present the possibilities of applying combustion synthesis to produce a new generation of nanocomposites fillers. The Self-Propagation High-temperature Synthesis (SHS) is an easy to carry on, fast, cheap, environmental friendly and self-sustainable process which, due to its nonlinearity, leads to the variety of nanomaterials that are not possible to obtain using conventional chemical methods. Among those nanomaterials, the silicon carbide nanofibres (SiCNFs) are particularly interesting because of their properties such as: thermal and chemical resistance, and enhancement of SiC mechanical features. The produced SiCNFs and their bundles were successfully incorporated in two epoxy resins matrices: EL20 and EPIKOTE 828 respectively. As obtained material exhibits noticeably different, in comparison with the pure polymer, mechanical and vibrational properties, even for the low ({L-End} <1%) phr. Moreover, in range from 0.1 to 1% wt of the filler, the local extremum for viscoelastic parameters has been observed. As the further detailed basic studies are foreseen, this research presents the attempt to deal with the nanocomposites phenomena by detailed filler qualitative and quantitative characterization.
机译：这项工作的目的是提出利用燃烧合成来生产新一代纳米复合材料填料的可能性。自蔓延高温合成（SHS）是一种易于进行，快速，廉价，环境友好且可自我维持的过程，由于其非线性，导致无法使用常规方法获得的纳米材料种类繁多化学方法。在那些纳米材料中，碳化硅纳米纤维（SiCNFs）尤其令人关注，因为它们具有以下特性：耐热和耐化学性以及增强SiC机械特性。所生产的SiCNF及其束被成功地掺入到两种环氧树脂基体中：EL20和EPIKOTE 828。所得材料与纯聚合物相比，即使在低（{L-End} <1％）phr的情况下，也表现出明显的机械和振动性能差异。此外，在填充剂的0.1重量％至1重量％的范围内，已经观察到用于粘弹性参数的局部极值。由于预计将进行更详细的基础研究，因此本研究提出了通过详细的填料定性和定量表征来处理纳米复合材料现象的尝试。

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