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[2021-Vol.18-Issue 2]Dip-coating of Superhydrophobic Surface on Irregular Substrates for Dropwise Condensation
发布时间: 2021-05-14 09:47  点击:323

J Bionic Eng 18 (2021) 387–397 DOI: https://doi.org/10.1007/s42235-021-0024-0 

Dip-coating of Superhydrophobic Surface on Irregular Substrates for Dropwise Condensation 

Zhen Xiao, Da Xu, Wenwen Zhang, Xinquan Yu, Youfa Zhang* 

Jiangsu Key Laboratory of Advanced Metallic Materials, School of Materials Science and Engineering, Southeast University, Nanjing 211189, China 

Abstract  Herein, self-assembled superhydrophobic composite coatings were successfully prepared using a one-step dip-coating method on different irregular parts. The fluorinated nano-SiO2 particles spread into a uniform layer owing to the viscosity of the composite resin. After the optimization of the process, the fabricated nanoporous-structured coating has low adhesion properties with chemical and high thermal stabilities. After baking at 250 ?C for 2 h or soaking in a solution of pH = 1 or pH = 13 for 10 days, the coating could maintain its good superhydrophobicity. The self-ejecting effects of the condensed dewdrops and droplet bounce phenomenon indicate that the coatings can be well-distributed on components of different structures, and they have significant application prospects in irregular parts and industrial production in the near future. 

Keywords: superhydrophobic, dip-coating, self-assembled, dropwise condensation, irregular parts

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