Stretchable, flexible fabric heater based on carbon nanotubes and water polyurethane nanocomposites by wet spinning process
NANOTECHNOLOGY(2024)
摘要
Wearable heaters are essential for people living in cold regions, but creating heaters that are low-cost, lightweight, and high air permeability poses challenges. In this study, we developed a wearable heater using carbon nanotube/water polyurethane (CNT/WPU) nanocomposite fibers that achieve high extension rate and conductivity. We produced low-cost and mass-produced fibers using the wet spinning. With heat treatment, we increased the elongation rate of the fibers to 1893.8% and decreased the resistivity to 0.07 omega*m. then wove the fibers into a heating fabric using warp knitting, that resistance is 493 omega. Achieved a uniform temperature of 58 degrees C at voltage of 36 V, with a thermal stability fluctuation of -5.0 degrees C to +6.3 degrees C when bent from 0 degrees to 360 degrees. Our results show that wearable heaters have excellent flexibility and stretchability, due to nanocomposite fibers and special braided structure, which offer a novel idea for wearable heaters.
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关键词
carbon nanotubes,water polyurethane,nanocomposite,electro-thermal
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