Electrospinning was employed to fabricate composite electrothermal films using carbon powder (CP)/carbon nanofiber (CNF). The study focused on investigating the effect of the CP content and carbonization temperature the electrothermal properties of these films. The results revealed a direct correlation between these parameters and the conductivity of the CP/CNF composite electrothermal films, ranging from 0.006 to 9.31 S/cm. Notably, the electrothermal performance of the composite electrothermal films exhibited positive linear relationships with CP content, carbonization temperature, and external voltage. By manipulating these factors, the temperature of the heat conduction surface was effectively controlled within the range of 30.22 to 236.96 °C. Impressively, the composite electrothermal film demonstrated remarkable stability, sustaining 50 electrothermal cycles without any performance. The controllable radiation heat transfer ranged from 0.29 to 1.68. The composite electrothermal films displayed a high heat transfer efficiency of 85.4 % demonstrating its ability to melt 1 cm of ice in just 3 min. These findings underscore the vast potential applications of the composite electrothermal film, emphasizing its efficiency and adaptability for various uses.

中文翻译：

---

含有碳粉的碳纳米纤维电热膜

采用静电纺丝技术，采用碳粉（CP）/碳纳米纤维（CNF）制备复合电热膜。该研究的重点是研究CP含量和碳化温度对这些薄膜的电热性能的影响。结果表明，这些参数与 CP/CNF 复合电热膜的电导率之间存在直接相关性，电导率范围为 0.006 至 9.31 S/cm。值得注意的是，复合电热膜的电热性能与CP含量、碳化温度和外部电压呈正线性关系。通过操控这些因素，导热面温度有效控制在30.22~236.96℃范围内。令人印象深刻的是，复合电热膜表现出显着的稳定性，可持续50次电热循环而没有任何性能下降。可控辐射传热范围为0.29~1.68。复合电热膜表现出高达 85.4% 的传热效率，证明其能够在短短 3 分钟内融化 1 厘米的冰。这些发现强调了复合电热膜的巨大潜在应用，强调了其效率和对各种用途的适应性。