Recyclable cold storage phase change composite material and aerogel phase change cold storage material with real-time temperature monitoring function, and preparation method and application thereof

By introducing maleic anhydride and maleimide groups into the polymer aerogel structure of phase change material, the leakage and recycling problems of phase change material are solved, achieving low leakage, recyclability and real-time temperature monitoring cold storage effect, which is suitable for food preservation and cold chain transportation.

CN117720883BActive Publication Date: 2026-07-03CHINA PETROLEUM & CHEMICAL CORP +1
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Patent Information

Application Number
CN202211101085.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-09-09
Publication Date
2026-07-03
Estimated Expiration
2042-09-09

AI Technical Summary

Technical Problem

Existing organic phase change materials pose a risk of leakage during energy storage and are difficult to recycle and reuse, leading to environmental pollution and resource waste.

Method used

A composite structure of polymer aerogel loaded with phase change material is adopted. By introducing maleic anhydride and maleimide groups into the polymer aerogel, an anisotropic aerogel structure is formed. The polymer aerogel is recovered using ammonia water and combined with photoluminescence properties to achieve real-time temperature monitoring.

Benefits of technology

It achieves low leakage and recyclability of phase change materials, while also having real-time temperature monitoring capabilities, making it suitable for food preservation and cold chain transportation, and reducing environmental pollution and resource waste.

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Abstract

The present application relates to the technical field of new material preparation, in particular to a recyclable aerogel phase change cold storage material with real-time temperature monitoring function and a preparation method and application thereof.The recyclable cold storage phase change composite material comprises a polymer aerogel and a phase change material loaded in the polymer aerogel; the polymer in the polymer aerogel contains a structural unit of a maleic anhydride group and a structural unit of a maleimide group, the recyclable cold storage phase change composite material can be recycled, has a smaller leakage amount, and can maintain a low temperature for a long time; the recyclable cold storage phase change material with real-time temperature monitoring function has a layer structure, comprising an inner layer formed by the recyclable cold storage phase change composite material and an outer layer formed by a second polymer aerogel, and can simultaneously realize mass temperature monitoring and recyclable performance.
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