High-efficiency phase change energy storage microcapsule with thermochromic function, and preparation method thereof

A phase-change energy storage, thermochromic technology, applied in microcapsule preparation, microsphere preparation, color-changing fluorescent materials, etc., can solve the problems of poor heat storage capacity, limited content, no heat storage performance, etc. Value, easy control, high yield of microcapsules
CN105670601AActive Publication Date: 2016-06-15SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
7 Cites 29 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
Publication Date
2016-06-15

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to a high-efficiency phase change energy storage microcapsule with a thermochromic function, and a preparation method thereof. The core of the microcapsule is a high-grade aliphatic hydrocarbon, alcohol, acid or lipid organic phase change material, and the wall of the microcapsule is a polymer formed by surface modified thermochromic powder and an organic polymer monomer. The preparation method of the microcapsule comprises the following steps: carrying out surface modifying treatment on the thermochromic powder with a coupling agent; mixing the surface modified thermochromic powder, the organic phase change material and the organic polymer monomer as an oil phase, and adopting an aqueous solution of a surfactant as a water phase; and adding the oil phase to the aqueous phase, and carrying out high speed emulsification and polymerization to form the high-efficiency phase change energy storage microcapsule with a thermochromic function. The preparation method has the advantages of simple preparation process, and easy control of the reaction process; and the material has the advantages of wide thermochromic temperature range, abundant color, high heat storage ability and long recycling life, and is hopeful to be applied in the fields of chromogenic indication, coatings and building materials.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the field of phase change energy storage materials, and in particular relates to a novel high-efficiency phase change energy storage microcapsule with thermochromic function and a preparation method thereof. Background technique

[0002] Energy and environmental issues are two major problems facing mankind today. In order to solve the contradiction between energy supply and demand and improve energy utilization, phase change energy storage materials with high-quality energy storage density and renewable have attracted increasing attention. A phase change energy storage material is a functional material that can store or release a large amount of latent heat by undergoing a physical state change (solid-liquid, solid-solid or gas-liquid) at a certain temperature. However, when the phase change energy storage material is in phase change, the liquid is easy to flow, and it is easy to leak and lose, so it needs to be packaged. At p...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More