G-coated MUF-PCM composite microcapsule, preparation method thereof and phase change energy storage water-based paint

By coating graphene onto the surface of paraffin microcapsules, a core-shell structure G@MUF-PCM composite microcapsule was constructed, which solved the shortcomings of existing coatings in terms of seasonal adaptability and thermal management, realized adaptive thermal management of the coating, and improved the building's year-round energy-saving effect.

CN121648839APending Publication Date: 2026-03-13WUHAN DOGE TECH DEV CO LTD
2 Cites 0 Cited by

Patent Information

Application Number
CN202512016637.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-30
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Existing building energy-saving coatings have problems with static and limited seasonal adaptability. They cannot effectively reflect sunlight and enhance heat dissipation in summer, or effectively suppress heat loss in winter. At the same time, the low thermal conductivity of traditional phase change coatings leads to sluggish response and makes it impossible to intelligently regulate heat flow.

Method used

By using G@MUF-PCM composite microcapsules and coating the surface of paraffin microcapsules with graphene to construct a core-shell structure, reversible switching of thermal conductivity and regulation of infrared emissivity are achieved. Combined with the volume change during the paraffin phase transition process, the dynamic switching of thermal management functions is driven.

Benefits of technology

It achieves adaptive thermal management of the coating, enabling rapid heat dissipation in summer and heat preservation in winter, thereby improving the overall energy efficiency of the building envelope throughout the year and overcoming seasonal contradictions.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention relates to a G-coated MUF-PCM composite microcapsule and a preparation method thereof and a phase change energy storage water-based paint, and the preparation method of the capsule comprises the following steps: slowly adding an MUF prepolymer solution into a paraffin emulsion, uniformly stirring, slowly dropwise adding an acid solution to adjust the pH value of a system to be acidic, then carrying out curing reaction, cooling to room temperature, filtering, washing a filter cake to be neutral, and drying to obtain the G-coated MUF-PCM composite microcapsule. The MUF paraffin microcapsules are obtained; the preparation method comprises the following steps: pre-treating an MUF paraffin microcapsule, adding the pre-treated MUF paraffin microcapsule into a graphene dispersion liquid, stirring to enable graphene to be adsorbed on the surface of the MUF paraffin microcapsule, filtering, washing a filter cake, and drying to obtain the G-coated MUF-PCM composite microcapsule. The coating provided by the invention not only has heat insulation and heat storage functions of traditional coatings, but also can realize intelligent collaborative switching between heat conduction capability and heat radiation characteristics, so that heat dissipation is enhanced in summer, heat preservation is enhanced in winter, and annual self-adaptive energy saving is achieved.
Need to check novelty before this filing date? Find Prior Art