一种微纳米多孔结构复合膜气凝胶及其制备方法与应用
By preparing micro/nano porous composite membrane aerogels using sodium hexametaphosphate, hydroxyapatite, and polyvinyl alcohol as raw materials, combined with sodium polyacrylate films, the high cost and energy dependence of existing radiation cooling technologies have been solved, achieving low-energy self-cooling and large-scale production, which is suitable for the construction and transportation fields.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- GUANGDONG UNIV OF TECH
- Filing Date
- 2024-04-11
- Publication Date
- 2026-07-17
AI Technical Summary
Existing radiative cooling technology suffers from drawbacks such as high cost, complex processes, and reliance on electricity, making it difficult to achieve low energy consumption, automatic temperature control, and large-scale production.
Micro- and nanoporous composite membrane aerogels were prepared using sodium hexametaphosphate, hydroxyapatite, and polyvinyl alcohol as raw materials. A highly efficient radiative cooling material was formed by coating the surface of the aerogel with sodium polyacrylate solution, and spontaneous cooling was achieved by utilizing the material's properties.
The resulting aerogel material is lightweight, has low thermal conductivity, and high porosity, exhibiting efficient cooling performance. It can automatically regulate temperature without additional electricity, making it suitable for mass production and large-area application in the construction and transportation sectors.
Smart Images
Figure CN118324103B_ABST