高等学校化学学报

高等学校化学学报

• 研究论文 • 上一篇    下一篇

超疏水煤矸石光热涂层的制备及其防覆冰性能研究

张卓昱1, 吴君1, 张佳欣1, 赵世豪1, 崔敏祺1, 宋浩杰1, 李永1,2,3   

  1. 1. 陕西科技大学材料科学与工程学院 2. 中国民用航空飞行学院民航安全工程学院 3. 四川省全电通航飞行器关键技术工程研究中心
  • 收稿日期:2025-03-26 修回日期:2025-06-09 网络首发:2025-06-30 发布日期:2025-06-30
  • 通讯作者: 李永 E-mail:yongli@sust.edu.cn
  • 基金资助:
    国家自然科学基金(批准号:52303376)，四川省全电通航飞行器关键技术工程研究中心开放课题(批准号:CAFUC2025KF07)和国家级大学生创新训练计划项目资助(批准号:202410708053)

Preparation of Superhydrophobic Coal Gangue Photothermal Coating and its Anti-icing Performance

ZHANG Zhuoyu1, WU Jun1, ZHANG Jiaxin1, ZHAO Shihao1, CUI Minqi1, SONG Haojie1, LI Yong1,2,3   

  1. 1. School of Materials Science and Engineering, Shaanxi University of Science and Technology 2. College of Civil Aviation Safety Engineering, Civil Aviation Flight University of China 3. Sichuan Key Technology Engineering Research Center for All-electric Navigable Aircraft
  • Received:2025-03-26 Revised:2025-06-09 Online First:2025-06-30 Published:2025-06-30
  • Contact: Yong Li E-mail:yongli@sust.edu.cn
  • Supported by:
    Supported by the National Natural Science Foundation of China(No.52303376), Sichuan province all-electric navigation aircraft key technology engineering research center (CAFUC2025KF07) and the National Undergraduate Innovation and Entrepreneurship Training Program (No.202410708053)

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摘要： 通过十二胺（DDA）和多巴胺（DA）迈克尔加成反应原位修饰煤矸石制备了超疏水煤矸石光热涂层.该涂层具有优异的防冰和除冰性能，为煤矸石废弃物的改性和资源化利用提供新方案. 结果表明，煤矸石与聚多巴胺的光热协同效应使得涂层表面温度能够达到90.2 ℃（1 kW/m2）. 同时，由于多级结构和低表面能烷基长链的协同作用，涂层表面水接触角高达157° ± 0.8°以及低滚动角3.2° ± 0.3°. 在-15 ℃的低温环境中，涂层表面水滴冻结延迟时间是无涂层材料的38.3倍. 此外，由于涂层具有光热转化特性，涂层表面的覆冰在 1 kW/m2的光照下仅需120 s即可快速融化，证明其优异的被动防冰和主动除冰特性. 重要的是，涂层还具有优异的自清洁性能、耐机械稳定性和耐化学稳定性. 该多功能光热涂层在煤矸石高值化利用和工程材料绿色防护方面具有重要应用前景.

关键词: 煤矸石改性, 光热转换, 超疏水涂层, 防覆冰

Abstract: A superhydrophobic coal gangue photothermal coating is prepared by in-situ modification of coal gangue through the Michael addition reaction of dodecylamine (DDA) and dopamine (DA). This coating has excellent anti-icing and de-icing properties, providing a new solution for the modification and resource utilization of coal gangue waste. The results show that the photothermal synergistic effect of coal gangue and polydopamine enable the surface temperature of the coating to reach 90.2 ℃ (1 kW/m2). At the same time, due to the synergistic effect of the multi-scale structure and low surface energy alkyl long-chain, the coating surface exhibit a water contact angle of up to 157 °± 0.8 ° and a sliding angle of 3.2 °± 0.3 °. In a low-temperature environment of -15 ℃, the freezing delay time of water droplets on the coating surface is 38.3 times that of uncoated material. In addition, due to the photothermal conversion characteristics of the coating, the ice on the surface of the coating can quickly melt in just 120 s under 1 kW/m2 of light illumination, demonstrating its excellent passive anti-icing and active de-icing performance. Importantly, the coating also has excellent self-cleaning performance, mechanical stability, and chemical stability. This multifunctional photothermal coating has important application prospects in the high-value utilization of coal gangue and green protection of engineering materials.

Key words: Coal gangue modification; Photothermal conversion, Superhydrophobic coating, Anti-icing

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