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首页> 外文期刊>The Journal of the Textile Institute >Structural properties of graphene oxide fibers: from graphene oxide dispersion until continuous graphene oxide fiber
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Structural properties of graphene oxide fibers: from graphene oxide dispersion until continuous graphene oxide fiber

机译：氧化石墨烯纤维的结构特性：从氧化石墨烯分散体到连续的氧化石墨烯纤维

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摘要

Continuous graphene oxide fiber focused for the last seven years have a very large application area such as electronic textiles, photovoltaics, batteries, fuel cells, sensors, filters. This study reports the effect of processing parameters such as time, temperature of the exfoliation together with dispersion preparation methods of graphene oxide on the properties of continuous graphene oxide fibers produced by coagulation bath. Relationship between changing parameters and structural properties of graphene oxide fiber,fiber morphology, roughness, crystalline structure have been discussed. It has been shown that crystalline structures and responses to changing parameters are different when it is an exfoliated state, dispersion state, and fiber state. For example, crystalline sizes and number of layers of GO fiber were higher than those of GO dispersion, while the crystallinity degrees and d-spaces at the GO fiber were always less than that of GO dispersion. Higher exfoliation time leads to an increase of Tex count of fiber, while longer ultrasonic time resulted in lower value compared to both shorter ultrasound time and mechanical homogenization. Shorter ultrasonic treatment and shorter exfoliation time leads to higher electrical conductivity compared to mechanical homogenization. Shorter ultrasonic treatment results in vaguely tendency of an increase of breaking strength.
机译：在过去的七年中，连续氧化石墨烯纤维的应用领域非常广泛，例如电子纺织品，光伏，电池，燃料电池，传感器，过滤器。这项研究报告了诸如剥落的时间，温度以及氧化石墨烯的分散制备方法等工艺参数对凝固浴生产的连续氧化石墨烯纤维性能的影响。讨论了氧化石墨烯纤维的变化参数与结构性能，纤维形态，粗糙度，晶体结构之间的关系。已经表明，当其处于剥离状态，分散状态和纤维状态时，晶体结构和对变化的参数的响应是不同的。例如，GO纤维的晶体尺寸和层数高于GO分散体，而GO纤维的结晶度和d空间总是小于GO分散体。与较短的超声时间和机械均质化相比，较高的剥落时间导致纤维的Tex数量增加，而较长的超声时间导致较低的值。与机械均质化相比，较短的超声波处理和较短的剥落时间可导致较高的电导率。较短的超声波处理导致模糊地增加了断裂强度的趋势。

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