High molecular solid/solid phase changing material with net type and comb type mixed structure and its preparing method

A technology of solid-solid phase change materials and mixed structures, which is applied in the direction of heat exchange materials, chemical instruments and methods, etc., can solve the problems of mechanical strength decline, use temperature not too high, poor processing performance, etc., and achieve long service life, Low cost and good stability
CN1263821CInactive Publication Date: 2006-07-12GUANGZHOU INST OF GEOCHEMISTRY - CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GUANGZHOU INST OF GEOCHEMISTRY - CHINESE ACAD OF SCI
Publication Date
2006-07-12
Estimated Expiration
Not applicable · inactive patent
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Abstract

The present invention relates to a kind of high molecular solid / solid phase changing material with mixed net and comb structure, and features that polyglycol with two active end radical and polyglycol with one active end radical are fixed onto the high molecular skeleton material to form 3D mixed net and comb structure. The material of the present invention has relatively great phase change enthalpy up to 120 J / g, proper phase change temperature capable of being altered in 0-65 deg.c, stable solid state before and after phase change without supercooling, separating and other unstable phenomenon, high mechanical strength, high solvent resistance, good machining performance, no toxicity, no leakage, no corrosion, no pollution, long service life and other advantages. The present invention may be used widely in solar energy utilization, afterheat recovering, intelligent air conditioner and other fields.
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Description

technical field

[0001] The invention relates to a polymer solid-solid phase change material with a network-like and comb-like mixed structure and a preparation method thereof. Background technique

[0002] Energy storage materials are widely used in practice. The most commonly used materials at home and abroad are solid-liquid phase change materials. When used, they must be sealed with containers, otherwise they will corrode equipment and pollute the environment due to leakage; Special materials can overcome this shortcoming. Common solid-solid phase change materials include polyols and polymers. When polyol energy storage materials are heated above the solid-solid phase transition temperature and change from crystalline solids to plastic crystals, the plastic crystals have a large Large vapor pressure, volatile loss, so that it still needs to be packaged in a container when used, and it is difficult to be practically applied; polymer phase change materials include polymer ...

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
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