Development of electrically capacitive tri-component fibers by addition of graphene in the melt-spinning process (FiberCap)

开发具有集成电活性功能的服装（智能纺织品）是21世纪纺织品研究的指导主题之一。FiberCap研究项目的目标是在熔纺工艺中开发一种基于纤维的超级电容器。因此，作为基础材料的聚酰胺6在纺丝过程中用纳米材料和电解质进行改性。因此，如果光纤连接到电压源，则会产生双电层。由此释放的电荷载体可用于向纺织品供应电能。通过热、机械、晶体学和显微镜分析方法对长丝进行表征。通过使用循环伏安法和电化学阻抗谱来进行电容和功率以及能量密度的测定。该研究项目中制造的电容纤维在智能纺织品中具有应用潜力，例如作为闪电纺织品的电源或用于支撑身体肌肉的外骨骼。

The development of clothing with integrated, electro-active functions (smart textiles) is one of the guiding themes in textile research of the 21th century. Goal of the research project FiberCap is to develop a fiber-based supercapacitor in the melt-spinning process. Therefore, polyamide 6 as basic material is modified with nano-materials and an electrolyte in the spinning process. Thus, electrical double-layers develop if the fiber is connected to a voltage source. The hereby released charge carriers can be used for supply of textiles with electrical energy. Characterization of the filaments is performed via thermal, mechanical, crystallographic and microscopic analysis methods. The determination of the electrical capacity and the power- as well as the energy density is performed by use of cyclovoltammetry and electrochemical impedance spectroscopy. The electrically capacitive fibers fabricated in the research project offer application potential in smart textiles, e.g. as power source for lightning textiles or exo-skeletons for support of the body muscles.