Aerogel composite material, preparation method thereof and thermal insulation energy storage material

By assembling the phase change material particles and polymers to form a porous framework structure of aerogel composite, the problem of poor stability in high-strength and long-term applications is solved, low thermal conductivity and high energy storage density are achieved, and high efficiency heat insulation and energy storage needs in the field of building constant temperature and thermal management.

CN119639428AActive Publication Date: 2025-03-18BEIJING INST OF TECH TANGSHAN RES INST +1
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Patent Information

Application Number
CN202411839065.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-13
Publication Date
2025-03-18
Estimated Expiration
2044-12-13

AI Technical Summary

Technical Problem

Existing aerogel materials have poor stability in high-strength and long-term applications, high thermal conductivity and low energy storage density, making it difficult to meet the efficient heat insulation and energy storage needs in the field of building constant temperature and thermal management.

Method used

By co-assembling the particles of the phase change material with the polymer to form a skeleton structure of the aerogel, the phase change enthalpy of the phase change material and the polymer cladding layer are used to form a porous skeleton structure, achieving low thermal conductivity and high energy storage density.

Benefits of technology

It achieves excellent thermal insulation performance and high energy storage density of aerogel composite materials, meets the dual needs of high-efficiency thermal insulation and energy storage, and maintains stability in high-strength and long-term applications.

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Abstract

The invention provides an aerogel composite material, a preparation method thereof and a thermal insulation energy storage material, the aerogel composite material has a porous skeleton structure, the porous skeleton structure comprises phase change material particles and a polymer, and the polymer coats at least part of the surface of the phase change material particles; the phase change enthalpy value of the aerogel composite material is not lower than 200J / g, and the heat conductivity coefficient is not higher than 0.16 W / (m.K); the phase change material particles and the polymer are jointly assembled to form an aerogel skeleton structure, the aerogel composite material is obtained, a base body of the aerogel composite material is composed of the phase change material particles and a polymer network, the aerogel composite material has excellent heat insulation performance, meanwhile, the phase change material serves as a functional phase to provide phase change heat storage capacity, and the phase change heat storage capacity is improved. The synergistic effect of the phase change material and the polymer not only constructs a stable skeleton structure, but also improves the low thermal conductivity and high energy storage density of the aerogel composite material, and meets the dual requirements for efficient heat insulation and energy storage in practical application.
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