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本研究的目的在于探讨由90%(质量分数)的聚乙烯(PE)和10%(质量分数)的炭黑(CB)组成的复合材料的电导率和发热性。在该比例下,填料含量超过了渗流边界值。由该复合材料制备的长丝的导电性较好,其电导率σ=10~50 S/m。与相当于电绝缘体的纯聚合物(σ=10~(-5)~10~(-12)S/m)相比,该复合长丝具有相当好的电性能;但与σ值在10~7S/m范围内的铁或铜相比,仍需进一步提高,才能获得完全导电的聚合物。事实上,正是这种半导体性能,使复合长丝适合应用于纤维基加热,引起的电损失可以被用于发热。研究通过改变生产工艺参数,对不同变量的影响进行了分析,并对长丝性能进行了优化。到目前为止,由亚琛工业大学纺织技术研究所(ITA)生产的复合长丝具有个位数级的电导率(S/m)。进一步描述了达10倍的性能提升。
The purpose of this study was to investigate the electrical conductivity and heat buildup of composites consisting of 90% polyethylene (PE) and 10% carbon black (CB). At this ratio, the filler content exceeds the seepage boundary value. The filaments prepared from the composite material have good electrical conductivity, and their electrical conductivity σ = 10-50 S / m. Compared with the pure polymer (σ = 10 ~ (-5) ~ 10 ~ (-12) S / m) which is equivalent to the electrical insulator, the composite filament has good electrical properties; 7S / m range compared to iron or copper, still need to be further improved in order to obtain a fully conductive polymer. In fact, it is this semiconducting property that makes composite filaments suitable for use in fiber-based heating and the resulting electrical losses can be used for heating. The impact of different variables was analyzed by changing production process parameters, and the performance of the filament was optimized. To date, composite filaments produced by the Institute of Textile Technology (RWA) at RWTH Aachen have single-digit conductivity (S / m). Further describes the performance up to 10 times.