Abstract

Experiments on the production of a nanocomposite material from coal tar obtained from coal of the Shubarkol deposit and nanoiron by electrospinning on a laboratory setup are presented. The elemental composition was determined, and the surface morphology of the test sample was studied. As a result of energy dispersive X-ray spectroscopy and SEM microscopy, the elemental composition (C, 92.14%; O, 6.16%; Al, 0.30%; Si, 0.26%; Р, 0.07%; S, 0.20%; Cl, 0.40%; and Fe, 0.47%) and the diameter of the carbon nanofiber, which ranged from 94.2 to 800.0 nm, were determined. The results of IR spectroscopy showed an increase in the intensity of peaks in a range of 2920–2850 cm^–1 and the appearance of a signal at 2359 cm^–1, which was explained by the breaking of several chemical bonds in the sample structure and the formation of a composite with nanoiron. The electrical resistance (R), electrical capacitance (C), and permittivity (ε) of a carbonized sample were determined for the first time in a temperature range of 293–483 K.

中文翻译：

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以煤焦油和纳米铁为原料的碳纳米纤维复合材料的理化和电物理性能

摘要

介绍了在实验室装置上通过静电纺丝从 Shubarkol 矿床的煤中获得的煤焦油和纳米铁生产纳米复合材料的实验。确定了元素组成，并研究了测试样品的表面形态。作为能量色散 X 射线光谱和 SEM 显微镜的结果，元素组成（C，92.14%；O，6.16%；Al，0.30%；Si，0.26%；Р，0.07%；S，0.20%；Cl， 0.40%；和 Fe，0.47%) 和碳纳米纤维的直径，范围从 94.2 到 800.0 nm，被确定。^{IR 光谱的结果显示在 2920–2850 cm –1}范围内的峰强度增加，并且在 2359 cm ^–1处出现信号，这可以通过样品结构中的几个化学键的断裂以及与纳米铁的复合材料的形成来解释。首次在 293-483 K 的温度范围内测定了碳化样品的电阻 ( R )、电容 ( C ) 和介电常数 (ε)。