Highly fluorinated and hierarchical HNTs/SiO2 hybrid particles for substrate-independent superamphiphobic coatings
Highly fluorinated and hierarchical HNTs/SiO2 hybrid particles for substrate-independent superamphiphobic coatings
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用于不依赖于基材的超双疏涂层的高度氟化和分层的 HNT/SiO2 杂化颗粒
DOI：
10.1016/j.cej.2018.11.127
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发表时间：
2019-03-01
影响因子：
15.1
通讯作者：
Huang, Anmin
中科院分区：
文献类型：
--
作者：
Wang, Kaili;Liu, Xiaorong;Huang, Anmin
在这项研究中，超双疏涂层制备使用喷涂方法的基础上高度氟化和分级结构埃洛石纳米管（HNTs）/SiO2粉末。所制备的超双疏涂层可以排斥液体的表面张力低至20.1 mN/m（正庚烷）。该涂层可以排斥热水和68%HNO3，表现出优异的超双疏性能。采用共缩合反应和硫醇-烯点击反应合成了HNTs/SiO2超双疏粒子。这些粒子具有棒点微米/纳米分级结构和高F含量（52.14原子%），这是必要的超两亲性。使用胶和颗粒系统将喷涂方法应用于各种基材，表现出与基材无关的表征。此外，该涂层在恶劣条件下也显示出优异的机械、环境和化学耐久性。多种特性，包括防腐、自清洁和防腐蚀，使该涂层适用于许多领域。
In this study, superamphiphobic coatings were prepared using a spray-coating method based on highly fluorinated and hierarchical-structure halloysite nanotubes (HNTs)/SiO2 powder. The prepared superamphiphobic coatings could repel liquids with a surface tension as low as 20.1 mN/m (n-heptane). The coating could repel hot water and 68% HNO3, demonstrating excellent superamphiphobic properties. The superamphiphobic HNTs/SiO2 particles were synthesized using a co-condensation reaction and thiol-ene click reaction. These particles possessed a rod-dot micro-/nano-hierarchical structure and a high F content (52.14 at%), which are essential for superamphiphobicity. The spray-coating method was applied to various substrates using a glue and particle system, exhibiting substrate-independent characterization. Moreover, the coatings also showed excellent mechanical, environmental, and chemical durability under harsh conditions. Multiple features, including anticorrosion, self-cleaning, and antifouling, rendered the coating suitable for applications in numerous fields.