Abstract The electrical and piezoresistive sensing characteristics of polymeric composites incorporating carbon nanotube (CNT) and carbonyl iron powder (CIP) were investigated in this study. A novel manufacturing method was introduced to effectively and uniformly disperse CNT and CIP into polymeric composites. Five different CNT proportions and three different CIP proportions were considered to explore the synergistic effects of CNT and CIP incorporation on the electrical and the piezoresistive sensing characteristics of the composites. Piezoresistive sensing characteristics (e.g., electrical resistance changes, time-based peak shifts, R-square values) of the composites were observed, and the effect of the magnetization on their piezoresistive sensing characteristics was also examined. The incorporation of CIP into CNT-embedded polymeric composites was shown to improve the piezoresistive sensing characteristics of the polymeric composites under cyclic tensile strain loads.

中文翻译：

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羰基铁粉掺入对碳纳米管聚合物复合材料压阻率和电导率的影响

摘要 本研究研究了包含碳纳米管 (CNT) 和羰基铁粉 (CIP) 的聚合物复合材料的电学和压阻传感特性。引入了一种新的制造方法，以有效且均匀地将 CNT 和 CIP 分散到聚合物复合材料中。考虑了五种不同的 CNT 比例和三种不同的 CIP 比例来探索 CNT 和 CIP 掺入对复合材料的电学和压阻传感特性的协同效应。观察了复合材料的压阻传感特性（例如，电阻变化、基于时间的峰移、R 平方值），并且还检查了磁化对其压阻传感特性的影响。