Switchable liquid repellent and active water harvesting surface

US10730789B2 · kind B2 · utility

Assignee

• The Penn State Research Foundation · US

Inventors

• Tak-Sing Wong · State College, US
• Yu-Jung Huang · Palo Alto, US
• Birgitt Boschitsch · State College, US
• Nan Sun · Beijing, CN

Key dates

• Filing date: Dec 5, 2017
• Grant date: Aug 4, 2020
• Expiry date: Feb 8, 2038

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K2201/01
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A substrate with a switchable surface has been developed that can rapidly switch its surface character such as between two distinct liquid-repellent modes: (1) a superhydrophobic mode and (2) a slippery mode. Such surfaces have demonstrated adaptive liquid repellency and water harvesting capabilities.