A coating-type atmospheric water harvesting material and a method of making the same
By constructing a composite gel system of polyvinyl alcohol, polyethylene glycol, and glycerol, the problems of molding and stability of adsorption and water collection materials were solved, enabling direct coating on large-area substrates and efficient water absorption and release, which is suitable for low-cost large-scale production.
Patent Information
- Application Number
- CN202610701958.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-05-21
- Publication Date
- 2026-07-17
AI Technical Summary
Existing adsorption and water collection materials are difficult to mold, making them hard to apply directly to large-area substrates. They also suffer from insufficient stability in water absorption and release cycles, and their preparation process is complex and costly, making it difficult to meet the needs of low-cost and large-scale production.
A three-dimensional interpenetrating network gel porous structure was constructed using polyvinyl alcohol, polyethylene glycol, glycerol, and hygroscopic inorganic salts. The structure was formed on the substrate surface by a simple coating method. The gelation time was controlled by adjusting the ratio of glycerol to polyethylene glycol, which improved the hygroscopic properties and stability and reduced the complexity of the preparation.
It enables direct coating on large-area substrates, has high water absorption and release efficiency, good cycle stability, and a simple process, making it suitable for large-scale production and engineering applications.
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Abstract
Citation Information
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