School of Applied Physics and Materials, Wuyi University, Jiangmen 529020, Guangdong Province, People's Republic of China.
Nanotechnology. 2016 Nov 25;27(47):475709. doi: 10.1088/0957-4484/27/47/475709. Epub 2016 Oct 26.
We fabricated a high-performance film heater based on a silver nanowire and polymethyl methacrylate (Ag NW-PMMA) composite film, which was synthesized with the assistance of mechanical lamination and an in situ transfer method. The films exhibit excellent conductivity, high figure of merit, and strong adhesion of percolation network to substrate. By controlling NW density, we prepared the films with a transmittance of 44.9-85.0% at 550 nm and a sheet resistance of 0.13-1.40 Ω sq. A stable temperature ranging from 130 °C-40 °C was generated at 3.0 V within 10-30 s, indicating that the resulting film heaters show a rapid thermal response, low driving voltage and stable temperature recoverability. Furthermore, we demonstrated the applications of the film heater in defrosting and a physical therapeutic instrument. A fast defrosting on the composite film with a transmittance of 88% was observed by applying a 9 V driving voltage for 20 s. Meanwhile, we developed a physical therapeutic instrument with two modes of thermotherapy and electronic-pulse massage by using the composite films as two electrodes, greatly decreasing the weight and power consumption compared to a traditional instrument. Therefore, Ag NW-PMMA film can be a promising candidate for diversified heating applications.
我们制备了一种基于银纳米线和聚甲基丙烯酸甲酯（Ag NW-PMMA）复合薄膜的高性能薄膜加热器，该薄膜是通过机械层压和原位转移方法合成的。该薄膜具有优异的导电性、高优值和渗流网络对基底的强附着力。通过控制 NW 密度，我们制备了在 550nm 处透光率为 44.9-85.0%、方阻为 0.13-1.40Ω/sq 的薄膜。在 10-30s 内，在 3.0V 下可产生 130°C-40°C 的稳定温度，表明所制备的薄膜加热器具有快速的热响应、低驱动电压和稳定的温度恢复能力。此外，我们还展示了薄膜加热器在除霜和物理治疗仪器中的应用。在施加 9V 驱动电压 20s 后，透光率为 88%的复合薄膜上实现了快速除霜。同时，我们使用复合薄膜作为两个电极开发了一种具有热疗和电子脉冲按摩两种模式的物理治疗仪器，与传统仪器相比，大大降低了重量和功耗。因此，Ag NW-PMMA 薄膜可以成为多种加热应用的有前途的候选材料。
