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- Title
Polyimide Enables Carbon-Based Conductive Polymer Composites with High Working Temperature for Deicing Application.
- Authors
Shao, Zhongjie; Liu, Yaning; Yang, Da; Li, Longfei; Xia, Yang; Zhang, Lihui; Tong, Bo; Wang, Bingjia; Zhao, Yong; Xiao, Zhen
- Abstract
Carbon-based conductive polymer composites (CPCs) have significant potential for fabricating low-cost and high-performance flexible electric heating films in deicing applications. However, the inferior high-temperature resistance and low heating power density seriously restrict their large-scale commercial application. Herein, a series of polyimide (PI)/carbon black (CB) composite electrothermal films with excellent high-temperature stability and high-power density are prepared by a simple slurry coating method. With successfully introducing the high-temperature resistance and high mechanical strength PI as polymer matrix, the PI/CB composite electrothermal films with a low percolation threshold of 10.8% have a broad operating temperature ranging from 40°C to 270°C under low applied voltages (< 60 V) at room temperature. Impressively, these PI/CB composite electrothermal films with a uniform thin thickness of 45 μm exhibit high operating temperature (> 200°C), rapid heating response speed (< 10 s), remarkable long-term working stability, and superior low-temperature operating reliability even at −30°C. The simulated deicing experiment indicates that the PI/CB composite electrothermal film dislodges an ice cube (thickness = 10 mm) within 280 s. This work not only provides a universal strategy for the design and fabrication of high-operating-temperature CPCs, but also verifies the great potential for use in deicing applications.
- Subjects
CONDUCTING polymer composites; ICE prevention &; control; HIGH temperatures; THIN films; POWER density; CARBON-black; SLURRY
- Publication
Journal of Electronic Materials, 2024, Vol 53, Issue 7, p3490
- ISSN
0361-5235
- Publication type
Article
- DOI
10.1007/s11664-024-11140-7