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Metal-panel polyurethane solid-solid phase transition energy-storage lightweight wall plate

A technology of phase-change energy storage materials and light-weight walls, applied in heat exchange materials, building components, chemical instruments and methods, etc., can solve the problems of easy phase separation of phase-change materials, low phase-change enthalpy, leakage, etc. problem, to achieve the effect of light weight, high rigidity and high strength

Inactive Publication Date: 2011-07-20
洪伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still some problems to be solved urgently, such as low phase change enthalpy, thermal stability needs to be improved, and phase change materials are easy to separate phases and leak, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] (1) Preparation of core material

[0022] a. PEG (molecular weight 2000, 60 parts) is dried with silica gel desiccant for 24 hours, then dissolved in an appropriate amount of acetone at a constant temperature of 40°C, and stirred evenly to make an acetone solution; TDI (40 parts, the amount of isocyanate is PEG and 1.05 times the amount of the hydroxyl group in the polyether polyol) was dissolved in an appropriate amount of acetone, added to the acetone solution of PEG under the protection of nitrogen, stirred, and heated to reflux for 2 hours to obtain a prepolymer.

[0023] b. Calculated amount of polyether polyol added. Take an appropriate amount of polyether polyol at a constant temperature of 40°C to make an acetone solution and add it to the prepolymer solution. Under the protection of nitrogen, stir and heat to reflux for 2 hours. Part of the acetone was evaporated, and the obtained solution was dried at 70° C. for 24 hours to obtain a polyurethane solid-solid ...

Embodiment 2

[0031] According to the process steps of the above-mentioned embodiment 1, before the core material is combined with the plate material, a layer of common polymer core material (such as polyurethane foam material, polystyrene foam material, polyethylene foam material, etc.) is compounded on the outward side of the core material. foam materials, etc.).

[0032] The board prepared by the method has higher thermal insulation performance and can be used in the construction of high-grade board houses with higher requirements.

Embodiment 3

[0033] Embodiment 3: adjust TDI to MDI according to the process steps of the above-mentioned embodiment 1.

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Abstract

The invention relates to a preparation method of a metal-panel polyurethane solid-solid phase transition energy-storage lightweight wall plate. The metal-panel polyurethane solid-solid phase transition energy-storage lightweight wall plate prepared by the method is significantly improved in building energy saving when compared to traditional metal-panel polyurethane wall plates, and the wall plate prepared by the method not only has the outstanding advantages of light weight, great intensity, high stiffness, heat insulation, sound insulation, fatigue tolerance, and the like, but also has the characteristic of solid-solid phase transition energy storage. The material can be widely applicable to building energy saving, can be used as a wall material for movable board house, a heat-insulation layer inside and outside a building, a indoor baffle, etc.

Description

technical field [0001] The invention relates to a method for preparing a metal panel polyurethane solid-solid phase change energy storage lightweight wall plate. The metal panel polyurethane solid-solid phase change energy storage lightweight wall panel prepared by the method has obvious improvement in building energy saving compared with the traditional metal panel polyurethane wall panel, in addition to having light weight, high strength, high rigidity, heat insulation , sound insulation, fatigue resistance and other outstanding advantages, and also has the characteristics of phase change energy storage. Background technique [0002] Phase change energy storage material technology is an emerging research hotspot in the construction field in recent years. This technology has important application value for energy saving, solving energy shortage, and improving people's quality of life. Phase-change energy storage materials refer to materials that can absorb heat (cold) from...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C2/292C09K5/02
Inventor 洪伟李青山吕珍珍马龙赵玉杰
Owner 洪伟
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