Salt-Tolerant Superoleophobicity on Alginate Gel Surfaces Inspired by Seaweed (Saccharina japonica)

Seaweed (Saccharina japonica) is found to have excellent superoleophobicity in salt solutions, which results from its high content of polysaccharides. Inspired by this, coatings with salt‐tolerant underwater superoleophobicity and ultralow oil adhesion are successfully fabricated using calcium algin...

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2015-07, Vol.27 (28), p.4162-4168
Main Authors: Cai, Yue, Lu, Qihang, Guo, Xinglin, Wang, Shutao, Qiao, Jinliang, Jiang, Lei
Format: Article
Language:English
Subjects:
Adhesion
Alginates - chemistry
bio-inspired materials
Calcium alginate
Coatings
Crude oil
Gels - chemistry
Glucuronic Acid - chemistry
Hexuronic Acids - chemistry
Hydrophobic and Hydrophilic Interactions
Immersion
Microscopy, Atomic Force
Microscopy, Electron, Scanning
oil-repellent
Polysaccharides - chemistry
salt-tolerant coatings
Sea water
Seaweed
Seaweeds
Silicon
Sodium Chloride - chemistry
superoleophobicity
Surface Properties
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Summary:Seaweed (Saccharina japonica) is found to have excellent superoleophobicity in salt solutions, which results from its high content of polysaccharides. Inspired by this, coatings with salt‐tolerant underwater superoleophobicity and ultralow oil adhesion are successfully fabricated using calcium alginate. During immersion in artificial seawater for 30 days, the coatings effectively repel various types of oil, including crude oil and viscous silicon oil, demonstrating their great potential as a marine oil‐repellent coating.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201404479