Poly (4-methyl-1-pentene) aerogel as well as preparation method and application thereof

Poly(4-methyl-1-pentene) aerogel was prepared by camphene solvothermal phase separation, which solved the problem of preparing aerogel materials with high solar reflectivity and superhydrophobicity. It achieved low cost, effective passive cooling and self-cleaning properties, and is suitable for large-area production.

CN122277984APending Publication Date: 2026-06-26HUNAN UNIV OF TECH
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Patent Information

Application Number
CN202610746198.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-05-28
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing technologies make it difficult to prepare aerogel materials with both high solar reflectivity and superhydrophobicity using simple methods. Furthermore, the preparation process is cumbersome and costly, making it difficult to achieve effective passive cooling and self-cleaning properties.

Method used

Using camphene as a solvent, poly-4-methyl-1-pentene aerogels were prepared through a thermally induced phase separation process. By combining conventional drying methods and avoiding solvent displacement and supercritical drying, aerogels with abundant micron-pore structures were prepared.

Benefits of technology

It achieves high solar reflectivity and low thermal conductivity, possesses excellent self-cleaning and heat insulation properties, is suitable for radiative cooling, has a significant cooling effect, is low in cost, and is suitable for large-scale production.

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Abstract

The invention discloses a poly (4-methyl-1-pentene) aerogel as well as a preparation method and application of the poly (4-methyl-1-pentene) aerogel. The preparation method comprises the following steps: taking camphene as a solvent of poly (4-methyl-1-pentene), controlling the cooling rate to carry out a thermally induced phase separation process, and carrying out a conventional drying mode to obtain the white aerogel with good self-supporting property. The preparation method is simple and mild, does not need a tedious process and expensive equipment, and can be used for large-area production. The aerogel has rich micron pore structures, has extremely high sunlight reflection capability, and can be used for radiation refrigeration to realize passive cooling. And the aerogel prepared by the method has excellent super-hydrophobicity and heat insulation property, and the potential of outdoor application is improved.
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