Facile preparation of wearable heater based on conductive silver paste with low actuation voltage and rapid response
Facile preparation of wearable heater based on conductive silver paste with low actuation voltage and rapid response
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简便制备低驱动电压、快速响应的基于导电银浆的可穿戴加热器
DOI：
10.1007/s42452-020-03867-9
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发表时间：
2020-11
期刊：
影响因子：
--
通讯作者：
邓承浩
中科院分区：
文献类型：
--
作者：
赵斯麒;李博文;李腾飞;邓承浩
对于用于可穿戴电子产品、执行器和高性能加热系统的新兴电加热器，人们非常需要各种特性，包括灵活性、低驱动电压、快速响应、易于适应、热稳定性和机械稳定性。本文提出了一种基于商用导电银浆的高性能加热器，通过相当简单的刮涂、涂刷和书写。得益于其优异的粘度，银浆可以牢固地涂覆在各种基材上，甚至包括疏水疏油聚四氟乙烯和高曲率棉线。银浆固化后，内部的银纳米片被包裹在聚合物框架内，紧密相连，形成可靠的导电网络，片电阻低（）。这种结构保护银纳米片免受氧化，并为这种柔性银加热器（FSH）提供了优异的热稳定性和机械稳定性，如长期加热、循环加热和多次变形测试所证明的那样。FSH在低工作电压（2 V）下实现高表面温度（280°C），热响应时间短（小于7 s）。FSHs在定制型可穿戴加热器和加热模式、热疗法、柔性加热螺纹和热开关等方面的应用演示表明，FSHs在柔性和可穿戴设备方面具有明显的优势。
Towards emerging electric heaters for wearable electronics, actuators and high-performance heating systems, various properties including flexibility, low actuation voltage, rapid response, facile adaptability, thermal and mechanical stability are highly desired. Herein, a high-performance heater based on commercial conductive silver paste is proposed, through quite simple scrape coating, painting and pen writing. Benefiting from its excellent viscosity, the silver paste can be firmly coated on a variety of substrates, even including hydrophobic and oleophobic polytetrafluoroethylene and cotton thread of high curvature. After curing the silver paste, the silver nanoflakes inside are encapsulated in a polymer framework and are closely interconnected, forming a reliable conductive network with low sheet resistance (). This structure protects the silver nanoflakes from oxidation and provides this flexible silver heater (FSH) excellent thermal and mechanical stabilities, as demonstrated by long-time heating, cyclic heating and multiple deformation tests. The FSH achieves high surface temperature (280 °C) at a low operation voltage (2 V), with rapid thermal response time (less than 7 s). The application demonstrations of FSHs in custom-shaped wearable heaters and heating patterns, thermal therapy, flexible heating thread and thermal switch suggest the distinct advantages of FSHs in flexible and wearable devices.
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影响因子：
9.9
作者：
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通讯作者：
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影响因子：
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通讯作者：
Guo Wenxi
影响因子：
10.8
作者：
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通讯作者：
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影响因子：
4
作者：
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通讯作者：
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影响因子：
9.9
作者：
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通讯作者：
Simonato, Jean-Pierre