期刊
ADVANCED ELECTRONIC MATERIALS
卷 3, 期 9, 页码 -出版社
WILEY
DOI: 10.1002/aelm.201700193
关键词
carbon fabric; flexible electronics; stretchable electronics; thermal therapy; weft-knitted
资金
- NSF of China [51672153, 51422204, 51372132]
- National Key Basic Research and Development Program [2016YFA0200103, 2013CB228506]
Wearable heaters have attracted broad attention due to their applications in personal heating systems and healthcare management, such as heat preservation in textile/clothing and thermotherapy. Protecting heating performance against deterioration under large deformation is is important for the application of wearable heaters. Here, a highly stretchable electrically driven heater based on electrically conductive weft-knitted fabrics is reported, which can be transformed from traditional fabrics through a facile heat treatment process. As an example, a heater made from Modal shows a heating temperature higher than 100 degrees C at a driving voltage as low as 3 V. The Joule heating performance of the heater does not deteriorate even under a large strain of 70%. Furthermore, according to theoretical analysis and experimental results, the output power and saturated temperature of the heater under a certain voltage can be easily tuned by tailoring the shape and size of the fabric to meet customized demands. The superior performance of the heater originates from the weft-knitted structural configuration. Finally, the application of the ultrastretchable heater in wearable thermal therapy devices is demonstrated, showing its great potential in wearable electronics.
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