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Properties of halloysite nanotube-epoxy resin hybrids and the interfacial reactions in the systems

机译:埃洛石纳米管-环氧树脂杂化物的性质及其体系中的界面反应。

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摘要

A naturally occurred microtubullar silicate, halloysite nanotubes (HNTs), was co-cured with epoxy/cyanate ester resin to form organic-inorganic hybrids. The coefficient of thermal expansion (CTE) of the hybrids with low HNT concentration was found to be substantially lower than that of the plain cured resin. The moduli of the hybrids in the glassy state and rubbery state were significantly higher than those for the plain cured resin. The dispersion of HNTs in the resin matrix was very uniform as revealed by the transmission electron microscopy (TEM) results. The interfacial reactions between the HNTs and cyanate ester (CE) were revealed by the results of Fourier transform infrared spectroscopy (FTIR) and x-ray photoelectron spectroscopy (XPS). The substantially increased properties of the hybrids were attributed to the covalent bonding between the nanotubes and the matrix.
机译:将天然存在的微管状硅酸盐,埃洛石纳米管(HNT)与环氧/氰酸酯树脂共固化,形成有机-无机杂化体。发现具有低HNT浓度的杂化物的热膨胀系数(CTE)显着低于普通固化树脂的热膨胀系数(CTE)。混合态在玻璃态和橡胶态的模量明显高于普通固化树脂的模量。如通过透射电子显微镜(TEM)结果所揭示的,HNT在树脂基质中的分散非常均匀。傅立叶变换红外光谱(FTIR)和X射线光电子能谱(XPS)的结果揭示了HNT与氰酸酯(CE)之间的界面反应。杂化物的实质上增加的性质归因于纳米管与基质之间的共价键合。

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