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In Situ Reversible Control between Sliding and Pinning for Diverse Liquids under Ultra-Low Voltage
ACS Nano ( IF 15.8 ) Pub Date : 2019-05-03 00:00:00 , DOI: 10.1021/acsnano.9b01180 Chao Chen , Zhouchen Huang , Yunlong Jiao , Lu-An Shi , Yiyuan Zhang , Jiawen Li , Chuanzong Li 1 , Xiaodong Lv 1 , Sizhu Wu 1 , Yanlei Hu , Wulin Zhu , Dong Wu , Jiaru Chu , Lei Jiang 2
ACS Nano ( IF 15.8 ) Pub Date : 2019-05-03 00:00:00 , DOI: 10.1021/acsnano.9b01180 Chao Chen , Zhouchen Huang , Yunlong Jiao , Lu-An Shi , Yiyuan Zhang , Jiawen Li , Chuanzong Li 1 , Xiaodong Lv 1 , Sizhu Wu 1 , Yanlei Hu , Wulin Zhu , Dong Wu , Jiaru Chu , Lei Jiang 2
Affiliation
Thermally responsive paraffin-infused slippery surfaces have demonstrated intriguing performance in manipulating the behaviors of versatile droplets. However, present methods have been limited to ex situ rigid heat sources with a high voltage of 220 V or certain specific photothermal materials, which greatly hinders its practical applications. To solve this problem, an intelligent droplet motion control actuator (DMCA) composed of paraffin wax, hydrophobic micropillar-arrayed ZnO film, and a flexible transparent silver nanowire heater (SNWH) is reported in this work. Due to the good portability of DMCA, in situ switchable wettability for several liquid droplets with different surface tensions can be achieved by simply loading and unloading Joule heat at an ultra-low voltage (12 V). The relationship among sliding velocity and droplet volume and inclined angles was quantitatively investigated. By virtue of the flexible and mechanical endurance, this smart DMCA is dramatically functional for droplet motion manipulation (e.g., reversible control between sliding and pinning) on complex 3D surfaces. Significantly, an impressive self-healing ability within 22 s is also demonstrated through the in situ application of Joule heat on the scratched DMCA, which renders its practical usability in various harsh conditions. This work provides insights for designing intelligent, flexible, and portable actuators dealing with the challenges of smart temperature-responsive surfaces.
中文翻译:
超低电压下多种液体的滑动和固定之间的原位可逆控制
热响应石蜡注入的光滑表面在操纵通用液滴的行为方面表现出令人着迷的性能。但是,目前的方法仅限于具有220 V高压的异地刚性热源或某些特定的光热材料,这极大地阻碍了其实际应用。为了解决这个问题,这项工作报道了一种由石蜡,疏水性微柱状排列的ZnO膜和柔性透明银纳米线加热器(SNWH)组成的智能液滴运动控制致动器(DMCA)。由于数字千年版权法案(DMCA)的良好可移植性,可就地通过以超低电压(12 V)轻松加载和卸载焦耳热,可以实现具有不同表面张力的几种液滴的可切换润湿性。定量研究了滑动速度与液滴体积和倾斜角度之间的关系。凭借灵活的机械耐久性,该智能DMCA对于复杂3D表面上的液滴运动操纵(例如,滑动和固定之间的可逆控制)具有显着的功能。值得注意的是,通过原位测试还显示出在22 s内令人印象深刻的自我修复能力焦耳热在划痕的DMCA上的应用,使其在各种恶劣条件下均具有实用性。这项工作为设计智能,灵活和便携式执行器提供了见识,以应对智能温度响应表面的挑战。
更新日期:2019-05-03
中文翻译:
超低电压下多种液体的滑动和固定之间的原位可逆控制
热响应石蜡注入的光滑表面在操纵通用液滴的行为方面表现出令人着迷的性能。但是,目前的方法仅限于具有220 V高压的异地刚性热源或某些特定的光热材料,这极大地阻碍了其实际应用。为了解决这个问题,这项工作报道了一种由石蜡,疏水性微柱状排列的ZnO膜和柔性透明银纳米线加热器(SNWH)组成的智能液滴运动控制致动器(DMCA)。由于数字千年版权法案(DMCA)的良好可移植性,可就地通过以超低电压(12 V)轻松加载和卸载焦耳热,可以实现具有不同表面张力的几种液滴的可切换润湿性。定量研究了滑动速度与液滴体积和倾斜角度之间的关系。凭借灵活的机械耐久性,该智能DMCA对于复杂3D表面上的液滴运动操纵(例如,滑动和固定之间的可逆控制)具有显着的功能。值得注意的是,通过原位测试还显示出在22 s内令人印象深刻的自我修复能力焦耳热在划痕的DMCA上的应用,使其在各种恶劣条件下均具有实用性。这项工作为设计智能,灵活和便携式执行器提供了见识,以应对智能温度响应表面的挑战。