期刊
SCIENCE CHINA-TECHNOLOGICAL SCIENCES
卷 64, 期 7, 页码 1447-1458出版社
SCIENCE PRESS
DOI: 10.1007/s11431-020-1830-2
关键词
positive temperature coefficient; room-temperature Curie point; adaptive thermal control; CPCs materials
资金
- National Natural Science Foundation of China [51225602]
This study presents a series of novel conductive polymer composites with optimized properties through adjusting hybrid fillers and matrix combinations, achieving self-regulating heating effects and strong thermal control capabilities in changing environment temperatures. These materials have great potential to replace traditional active thermal control means.
Conductive polymer composites (CPCs) as the thermo-sensitive materials have attracted much attention in thermal control field due to their reliable self-regulating behaviors, high efficiency and mechanical flexibility. However, the development of these materials needs to manage the normal conflicting requirements, such as effective heating performance and good self-regulating capability. This paper presents a series of novel CPCs material having different amounts of hybrid fillers of multi-walled carbon nanotubes (CNTs) and carbon black (CB). The positive temperature coefficient intensity is enhanced to 10(5.2), and the room-temperature resistivity is optimized to 320 omega cm. Besides, the Curie temperatures are regulated to room-temperature range by incorporating the low-melting-point blend matrix into the poly(ethylene-co-vinyl acetate)/CNTs/CB composite. The thermal-control experiment demonstrates that CPCs-heating elements can adjust the equilibrium temperature of controlled equipment near their Curie temperatures without any control methods. Compared with the ordinary resistor, the CPCs materials have the remarkable adaptive thermal control behavior. Furthermore, the temperature control capability is particularly prominent in the changing environment temperature. The CPCs as a safe and reliable adaptive heating element is potential to replace the conventional active thermal control means.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据