Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 9, Issue 2, Pages 1941-1952Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.6b13539
Keywords
superoleophobic; silanes; Maya Blue; superhydrophobic; palygorskite/attapulgite
Funding
- Chinese Academy of Sciences
- National Natural Science Foundation of China [51503212, 81360344]
- Key Technology R&D Program of Jiangsu [BE2014102]
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Superamphiphobic coatings with low sliding angles (SAs) and high durability are very attractive in academic and industrial, areas but are very challenging to invent. Here, inspired by Maya Blue, we report for the first time colorful superamphiphobic coatings with-low SAs and high durability by the combination of natural palygorskite nanorods and organosilanes. The coatings were characterized using a wide range of electron microscopy and other analytical techniques. Different from the previously reported methods, the micro/nanostructure of the superamphiphobic coatings were constructed by using the abundant natural PAL nanorods as the building blocks. Superamphiphobicity of the coatings depends on. surface morphology and chemical composition of the coatings, which-can be regulated by the concentrations of PAL and organosilanes. The colorful superamphiphobic coatings feature high: contact angles and low SAs for various liquids, including water and n-decane. The coatings also showed high mechanical, environmental, chemical, and thermal durability even under harsh conditions. Moreover, the coatings in different colors with comparable superamphiphobicity and durability can be prepared using different cationic dyes applied onto various substrates via the same approach. The colorful superamphiphobic, coatings with low SAs and high durability may be useful in various fields, e.g., anticreeping of oils and restoration of cultural relics.
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