NDLI: Fluorine-free superwetting systems: construction of environmentally friendly superhydrophilic, superhydrophobic, and slippery surfaces on various substrates

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Fluorine-free superwetting systems: construction of environmentally friendly superhydrophilic, superhydrophobic, and slippery surfaces on various substrates

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Polymer Chemistry Vol - 7 Issue - 39

Polymer Chemistry Vol - 7 Issue - 29

Polymer Chemistry Vol - 7 Issue - 19

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Fluorine-free superwetting systems: construction of environmentally friendly superhydrophilic, superhydrophobic, and slippery surfaces on various substrates

Content Provider	Royal Society of Chemistry (RSC)
Author	Yu, Leixiao Camacho, Luis Cuellar Schlaich, Christoph Wei, Qiang Haag, Rainer
Copyright Year	2016
Abstract	Surfaces that exhibit extreme wetting properties such as superhydrophobic and/or slippery liquid-infused porous surfaces (SLIPS) rely heavily on their surface energy and roughness. Although the bioaccumulation and dramatic ecological impact of perfluorinated building blocks are obvious, perfluorination of surfaces is still the most utilized method for lowering the surface energy. Herein we present a simple, substrate-independent, completely fluorine free and environmentally friendly concept for the construction of various super-wetting systems. Taking advantage of a mussel-inspired polyglycerol we successfully fabricated superhydrophilic, superhydrophobic and slippery surfaces by the precise design of a highly hierarchical structure. Additionally, the superhydrophobic coating was used to transfer commercially available cellulose and polystyrene 3D sponges into stable superhydrophobic but superoleophilic absorbent materials for oil/water separation. Moreover, the alkylated, hierarchical structure can serve as a matrix to efficiently capture hydrocarbon liquids as a lubricant that results in SLIPS. Surprisingly, common sunflower oil from the supermarket showed the same performance as pure chemicals such as hexadecane. Both the superhydrophobic and the slippery surfaces showed a similar performance regarding liquid and cell repellency in comparison to their fluorinated analog.
Starting Page	7446
Ending Page	7454
Page Count	9
File Format	HTM / HTML PDF
ISSN	17599954
Volume Number	7
Issue Number	48
Journal	Polymer Chemistry
DOI	10.1039/c6py01596d
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Hydrocarbon Fluorine Helianthus Cellulose Polystyrene Composite material Three-dimensional space Lubricant Hexadecane Bioaccumulation Superhydrophobic coating Surface tension Ultrahydrophobicity
Content Type	Text
Resource Type	Article
Subject	Organic Chemistry Biochemistry Bioengineering Biomedical Engineering Polymers and Plastics

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Fluorine-free superwetting systems: construction of environmentally friendly superhydrophilic, superhydrophobic, and slippery surfaces on various substrates

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Fluorine-free superwetting systems: construction of environmentally friendly superhydrophilic, superhydrophobic, and slippery surfaces on various substrates