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Friday, 20 September 2019
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Raw materials & technologies, Technologies, Functional coatings

Coated cotton fabric to collect and release water

Monday, 21 January 2013

Sponge-like cotton fabric with a responsive polymer coating autonomously collects and releases water from fogs triggered by day-and-night temperature variations.

A sponge-like cotton fabric autonomously collects and releases water from fogs triggered by typical day-and-night temperature variations. The reversible switching between absorbing-superhydrophilic/releasing-superhydrophobic states results from structural changes of a temperature-responsive polymer grafted on the very rough fabric-surface. This material and concept presents a breakthrough into simple and versatile solutions for collection, uni-directional flow, and purification of water captured from the atmosphere.

The paper by Helen Yang and her co-authors will appear in "Advanced Materials”, No. 8 (DOI: 10.1002/adma.201204278).

Sponge-like cotton fabric autonomously collects and releases water from fogs

Source: Shutterstock

Sponge-like cotton fabric autonomously collects and releases water from fogs

Source: Shutterstock

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