Phase change energy storage heat insulation fluorocarbon coating and preparation method thereof

By combining phase change materials with solvent-based fluorocarbon resins, phase change energy storage and heat insulation fluorocarbon coatings are prepared, solving the problems of poor heat insulation effect and inconvenient construction of existing building exterior wall coatings, and achieving efficient and long-lasting temperature regulation and energy-saving effects.

CN122168088APending Publication Date: 2026-06-09GUANGDONG WHOLETOPS BUILDING MATERIALS IND
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGDONG WHOLETOPS BUILDING MATERIALS IND
Filing Date
2026-04-02
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing reflective thermal insulation coatings for building exterior walls have limited thermal insulation effect, insufficient heat preservation durability, cumbersome construction and inconvenient repair. Furthermore, phase change materials have poor thermal conductivity in building applications, resulting in a lag in temperature regulation.

Method used

By combining phase change materials with solvent-based fluorocarbon resins and optimizing the formulation and fine dispersion process, a phase change energy storage and thermal insulation fluorocarbon coating is prepared. The thermal management capability of PCM and the durability of fluorocarbon resin are utilized to achieve dynamic thermal insulation performance, and the use of a solvent-based system improves the ease of construction.

Benefits of technology

It achieves excellent and long-lasting dynamic thermal insulation performance, significantly reduces building energy consumption, improves the convenience of construction and repair, and extends the service life of phase change materials due to the uniformity of coating performance and the functional stability of PCM.

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Abstract

This invention belongs to the field of resin synthesis technology and discloses a phase change energy storage and thermal insulation fluorocarbon coating and its preparation method. The coating comprises 23-25% PVDF fluorocarbon resin, 8-9% acrylic resin, 10-20% phase change material, and a specific composite solvent system. Through a stepwise dispersion process, the inorganic filler is first ground to ≤15μm, and then the phase change material is slowly dispersed under controlled temperature conditions, solving the technical problems of easy breakage and unstable dispersion of phase change material in solvent-based systems. This invention innovatively combines the thermal management capabilities of phase change material with the extreme durability of solvent-based fluorocarbon resin, and with optimized formulation and refined dispersion process, achieves excellent and long-lasting dynamic thermal insulation performance, providing a high-performance coating solution for building energy conservation and emission reduction. By maintaining the integrity of the PCM microcapsule structure in the solvent-based system, the coating is endowed with dynamic temperature buffering capability, matching the phase change functional lifespan with the weather resistance lifespan of the fluorocarbon resin.
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