Abstract Two conductive carbon materials, one with a beaded-like structure (carbon black, ECP) and another with tube-like structure (functionalized multi-walled carbon nanotubes, FMWCNTs), were added into a poly(amide-imide) (PAI) matrix. Combining the advantages of ECP (good compatibility) and FMWCNT (high conductivity), the conductivity was improved from 3.7 S m−1 for PAI/FMWCNT polymer composites to 100 S m−1 for PAI/FMWCNT/ECP ternary conductive polymer composites, much higher than that of the sum of PAI/ECP and PAI/FMWCNT. The tensile strength increased from 40 to 70 MPa. The improved conductive and mechanical properties were mainly due to much more intensive conductive network produced in the PAI/FMWCNT/ECP ternary composites, which is useful for electron flow and stress spread. The number of hydrogen bond was increased by adding ECP into PAI/FMWCNT binary composites, and played an important role in forming the unique morphology as evident by Fourier transform infrared spectrometry (FTIR) and X-ray diffraction (XRD) measurements. These conductive composites have potential for flexible electronic applications.

中文翻译：

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使用不同形貌的碳纳米材料同时改善聚（酰胺-酰亚胺）复合材料的机械和导电性能

摘要 将两种导电碳材料，一种具有珠状结构（炭黑，ECP）和另一种具有管状结构（功能化多壁碳纳米管，FMWCNTs），加入到聚（酰胺-酰亚胺）（PAI）中。矩阵。结合ECP（良好的兼容性）和FMWCNT（高电导率）的优点，将PAI/FMWCNT聚合物复合材料的电导率从3.7 S m-1提高到PAI/FMWCNT/ECP三元导电聚合物复合材料的100 S m-1，大大提高高于 PAI/ECP 和 PAI/FMWCNT 的总和。拉伸强度从 40 MPa 增加到 70 MPa。改进的导电和机械性能主要是由于在 PAI/FMWCNT/ECP 三元复合材料中产生了更密集的导电网络，这对电子流和应力扩散很有用。通过将 ECP 添加到 PAI/FMWCNT 二元复合材料中可以增加氢键的数量，并在形成独特的形态方面发挥了重要作用，如傅里叶变换红外光谱 (FTIR) 和 X 射线衍射 (XRD) 测量所证明的那样。这些导电复合材料具有用于柔性电子应用的潜力。