The Flexible and Transparent Film Heaters Based on Regenerated Cellulose and Carbon Nanotubes

Frontiers in Energy Research

Tianyi Zhang¹  Pengbo Lu¹  Haoyu Shen²  Chaocheng Liu²  Detao Liu²  Jiedong Cui²  Yang Li²  Yinghui Li²  Ke Xu² 

[1] Gree Intelligent Equipment Co., Ltd., Zhuhai, China;School of Light Industry and Engineering, South China University of Technology, Guangzhou, China;

关键词: flexible heaters;    regenerated cellulose;    NMMO;    CNFS;    transparency;   

DOI  :  10.3389/fenrg.2022.879257

来源: DOAJ

【 摘 要 】

The flexible and transparent film heaters (FTFHs) with the advantages of mechanical flexibility, portability, and excellent electrothermal performance, are key to the next generation portable, wearable heaters and thermal protection systems. However, the present flexible and transparent substrates of FTFHs are fabricated by typical plastic PET films, which suffer from poor interfacial adhesion with the thermally conductive materials. In this work, the transparent regenerated cellulose fibers made of completely dissolved in NMMO solution followed by regeneration process is presented to disperse and support carbon nanotubes (CNTs) by a vacuum-dewatering process. In the presence of cellulose fibers, these CNTs have strong hydrogen bonding properties in the dehydration-deposition process and thus respond to tight intertwining structures in fibrous composites. The resulting regenerated cellulose fibers exhibit high optical transparency of 88% (@550 nm) and good mechanical properties (30 MPa). Interestingly, the FTFHs show a rapid heating response, high generation temperature, and resistance stability for up to 2 h. The FTFHs made with earth-abundant, cost-effective, and recyclable materials, have excellent potential in the areas of green flexible and transparent film heaters.

【 授权许可】

Unknown