材料科学
结冰
热的
电压
光电子学
吸收(声学)
太阳能
复合材料
化学工程
气象学
生态学
量子力学
生物
物理
工程类
作者
Tongtong Hao,Zhicheng Zhu,Huige Yang,Zhiyuan He,Jianjun Wang
标识
DOI:10.1021/acsami.1c13252
摘要
Solar energy-facilitated icephobic films have emerged as clean and renewable materials, which can potentially solve energy loss problems during anti-icing/deicing applications. However, there is a significant challenge for all-day and continuous anti-icing/deicing applications under practical conditions with insufficient sunlight or no sunlight. In this work, a chemical oxidation polymerization method was used to prepare in situ self-wrinkling porous poly(dimethylsiloxane) (PDMS)/polypyrrole (PPy) (POP-P) films based on a facile sugar template method. The porous-structured film enhanced light absorption by elongating the optical path for multiple reflections, maintaining an outstanding broad-band solar light absorption (295–2500 nm) and an exceptional photo-thermal effect. The light-to-heat performance showed a temperature enhancement from room temperature to 89.1 °C within 400 s under 1 sun illumination (qi = 1.0 kW m–2). In addition, this membrane also exhibited an electro-thermal effect at different voltages due to the Joule effect, and the saturation temperature could reach 75.4 °C at a voltage of 32 V. As an anti-icing/deicing material, this POP-P surface remained ice-free (−25 °C) throughout alternating of day and night, under conditions of a solar intensity of 0.8 kW m–2 and a voltage of 25 V.
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