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Studies on the Interfacial Effect between Nano-SiO2 and Nylon 6 in Nylon 6/SiO2 Nanocomposites

机译:尼龙6 / SiO2纳米复合材料中纳米SiO2与尼龙6界面作用的研究。

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Low nano-SiO2 loaded nylon 6 (PA6) nanocomposites were readily produced via in situ polymerization. The effect of surface-modified functional groups of nano-SiO2 on the interfacial structure and properties of nylon 6/SiO2 nanocomposites were studied, which indicated that the surfaces of the two kinds of nano-SiO2, namely RNS-A and DNS-3, contained amino groups and alkyl chains, respectively. Furthermore, as-prepared nanocomposites were characterized by means of transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). The results showed that the PA6 chains were attached to the surface of nano-SiO2 by the modes of physical adsorption and chemical bonding. Nano-SiO2 was found to uniformly disperse inside nanocomposites with RNS-A and DNS-3, thereby increasing the superior strength and toughness of nanocomposites in comparison to the pure PA6. Of particular interest ...
机译:经由原位聚合容易制备低纳米SiO 2负载尼龙6(PA6)纳米复合材料。研究了纳米SiO2表面修饰的官能团对尼龙6 / SiO2纳米复合材料界面结构和性能的影响,表明RNS-A和DNS-3这两种纳米SiO2的表面,分别含有氨基和烷基链。此外,通过透射电子显微镜(TEM),傅立叶变换红外光谱(FTIR),扫描电子显微镜(SEM),热重分析(TGA)和差示扫描量热法(DSC)表征了制备的纳米复合材料。结果表明,PA6链通过物理吸附和化学键合的方式附着在纳米SiO2表面。发现纳米SiO2与RNS-A和DNS-3均匀地分散在纳米复合材料内部,从而与纯PA6相比增加了纳米复合材料的优异强度和韧性。特别感兴趣...

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