Carbon nanotube film (CNTF) with two-dimensional CNT network structure is adopted to prepare CNTF/poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) thermoelectric composites, which overcomes the disadvantages of low content, easy aggregation, and random orientation of CNTs when dispersed in polymer. A vacuum-assisted filtration method was proposed, which can uniformly and sufficiently penetrate the polymer into CNTF along thickness direction for fabrication of CNTF/PEDOT:PSS composites. A highest electrical conductivity of 806.2 S/cm at 300 K was achieved for the composites with 60 wt% PEDOT:PSS loading, which was 51.0% higher than that of the original CNTF (534.1 S/cm). A maximum power factor of 339.6 μW·m⁻¹·K⁻² at 320 K was achieved with a corresponding Seebeck coefficient of 67.7 μV/K. This study provides a universal method for fabrication of other kinds of CNTF/conductive polymer thermoelectric composites.

采用具有二维CNT网络结构的碳纳米管薄膜(CNTF)制备CNTF/聚(3,4-乙烯二氧噻吩):聚(苯乙烯磺酸盐)(PEDOT:PSS)热电复合材料，克服了含量低、易聚集的缺点，以及分散在聚合物中时碳纳米管的随机取向。提出了一种真空辅助过滤方法，该方法可以使聚合物沿厚度方向均匀、充分地渗透到CNTF中，用于制备CNTF/PEDOT:PSS复合材料。对于具有 60 wt% PEDOT:PSS 负载的复合材料，在 300 K 时实现了 806.2 S/cm 的最高电导率，比原始 CNTF (534.1 S/cm) 高 51.0%。最大功率因数 339.6 μW·m ^-1 ·K ^-2 在 320 K 时，相应的塞贝克系数为 67.7 μV/K。该研究为制备其他种类的CNTF/导电聚合物热电复合材料提供了一种通用方法。