Journal of Industrial and Engineering Chemistry, Vol.103, 314-321, November, 2021
Fabrication of hierarchical structures on concrete surfaces with superhydrophobicity using replicated micro-nano dendritic structures
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Concrete with superhydrophobicity can protect it from being eroded by water and reduce accumulation of dust. Herein, a green and efficient method was proposed for fabricating hierarchical structures on concrete surfaces with superhydrophobicity by directly replicating micro-nano dendritic structures from superhydrophobic copper mesh to fresh concrete. Microstructures, chemical compositions and wettability of the as-fabricated concrete were characterized. Superhydrophobicity of the as-fabricated concrete was studied. Effect of water jet on the as-fabricated concrete was investigated. Wetting durability of the as-fabricated concrete were studied. Self-cleaning property was confirmed. It was found that owing to the successful replication of micro-nano dendritic structures and low surface energy stearic acid, the as-fabricated concrete displayed good superhydrophobicity, wetting durability and self-cleaning
property.
Keywords:Superhydrophobicity;Concrete;Micro-nano dendritic structures;Replication;Self-cleaning property;Hierarchical structures
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