纳米陶瓷/无机颜料复合涂层构建及对宽温域水相防护应用

Construction and application of nanoceramic/inorganic pigment composite coatings for aqueous protection in a wide temperature range

  • 摘要: 以纳米陶瓷为物理支撑,通过表面修饰技术对纳米陶瓷骨架和无机颜料(氧化铋、氧化亚铜、氢氧化镍、纳米钴蓝与生物炭)进行原位修饰,成功构建了具有分级结构的纳米陶瓷/无机颜料复合材料,借助喷涂工艺赋予柔性基材超浸润功能。制备得到的纳米陶瓷/无机颜料复合涂层对25℃与95℃的液滴均展现出超疏液特性,其接触角均大于154°,滚动角小于6°,同时具有抵抗95 ℃热污液的能力。其中,引入生物炭所制备的纳米陶瓷/无机颜料复合涂层呈现超疏热液与防除冰效果。结果表明,纳米陶瓷/无机颜料复合涂层具备面对宽温域水相的耐久抵抗功能。

     

    Abstract: Using nano-ceramics as the physical support, the surface modification technology was employed to perform in-situ modification on the nano-ceramic framework and inorganic pigments (bismuth oxide, cuprous oxide, nickel hydroxide, nano-cobalt blue, and biochar), successfully constructing a hierarchical-structured nano-ceramic/inorganic pigment composite material. Through a spraying process, the flexible substrate was endowed with superwetting functionality. The prepared nano-ceramic/inorganic pigment composite coating exhibited superlyophobic properties against both 25℃ and 95℃ droplets, with contact angles exceeding 154° and rolling angles below 6°, while also demonstrating resistance to 95℃ hot contaminated liquids. Notably, the nano-ceramic/inorganic pigment composite coating incorporating biochar displayed superhydrophobicity toward hot liquids and anti-icing/deicing effects. The results indicate that the nano-ceramic/inorganic pigment composite coating possesses durable resistance to aqueous phases across a wide temperature range.

     

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