Energy storage material of solid - solid phase change in opal / polyurethane type, and preparation method

A phase-change energy storage material, opal technology, applied in the field of opal/polyurethane solid-solid phase-change energy storage materials and its preparation, can solve the problems of short life, volatile, unstable performance of polyols, etc., and achieve low cost , Improve the crystallization performance, the effect of low price
CN1958711AInactive Publication Date: 2007-05-09DONGHUA UNIV
3 Cites 25 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
DONGHUA UNIV
Publication Date
2007-05-09
Estimated Expiration
Not applicable · inactive patent

Smart Images

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

Abstract

This invention relates to a method for preparing opal / polyurethane solid-solid phase transition energy-storage material. The molecular structure of the material is shown in formula I, where, poly (ethylene glycol) is the soft segment, while aliphatic and aromatic isocyanate, and trihydroxyl substance are the hard segments. The method comprises: (1) preparing prepolymer of poly (ethylene glycol) with terminal groups activated by isocyanate groups; (2) preparing opal / polyurethane solid-solid phase transition energy-storage material. The method has such advantages as low raw material cost, no toxicity of the product, and simple process. The addition of natural nanomaterial (opal) can increase the phase transition enthalpy value and heat response rate of the material, and can reduce the cost. The opal / polyurethane solid-solid phase transition energy-storage material can effectively save energy, and has potential applications in such fields as agriculture, energy resources, textile, construction and electronics.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to a solid-solid phase change material with energy storage function and a preparation method thereof. It specifically relates to an opal / polyurethane solid-solid phase change energy storage material and a preparation method thereof. Background technique

[0002] In the era when information, energy, and materials are the three pillar industries, energy storage materials have received more and more attention. Phase change energy storage and phase change materials (phase change material, PCM) are one of the hotspots in the development and research of energy utilization and material science at home and abroad in recent years. At present, the most widely used are solid-liquid phase change materials and solid-solid phase change materials.

[0003] The solid-liquid phase change material will appear in a liquid state during the phase change process, so a container is required to separate the phase change ...

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