An organic phase change energy storage material and its preparation method

A technology of energy storage materials and phase change materials, which is applied in the preparation of organic phase change energy storage materials and in the field of organic phase change energy storage materials, can solve the problems of difficult storage and poor thermal conductivity, and achieve the effect of easy storage and good thermal conductivity

Active Publication Date: 2022-07-08
XIAN UNIV OF TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide an organic phase change energy storage material, which solves the problems of poor thermal conductivity and difficult storage of organic phase change materials in the prior art

Method used

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  • An organic phase change energy storage material and its preparation method
  • An organic phase change energy storage material and its preparation method
  • An organic phase change energy storage material and its preparation method

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Embodiment Construction

[0027] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] The organic phase change energy storage material of the present invention uses polyethylene glycol as a porogen to synthesize poly-N-isopropylacrylamide gel as a support material, uses a binary organic compound as a phase change material, and uses the support material to adsorb A binary composite phase change material is prepared to obtain an organic phase change energy storage material.

[0029] The above-mentioned binary organic compound is selected from the following three combinations:

[0030] 1) When the binary organic compound adopts n-decanoic acid-methyl laurate, n-decanoic acid and methyl laurate have good thermal properties (see Figure 5a and 5b ), and can coexist, that is, no chemical reaction occurs during the mixing process, and the Fourier transform infrared spectrum of the binary organic complex shows that no new funct...

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Abstract

The invention discloses an organic phase change energy storage material. The invention also discloses a preparation method of the organic phase change energy storage material. The steps include: 1) combining N-isopropylacrylamide, N,N'-substituted Methyl bisacrylamide and polyethylene glycol 1000 are dissolved in deionized water; the polymerization reaction is initiated in the redox system of ammonium persulfate and tetramethylethylenediamine to form a polyethylene glycol with polyethylene glycol 1000 as the porogen. N-isopropylacrylamide gel; 2) soak in distilled water; 3) put the frozen poly-N-isopropylacrylamide gel into a freeze dryer and freeze-dry; 4) freeze-dry the poly-N-isopropylacrylamide gel The propylacrylamide gel was immersed in binary organic compounds and swollen to prepare organic phase change energy storage materials. The material and its preparation method of the present invention are very suitable for the preservation, storage and transportation of fruits and vegetables.

Description

Technical field [0001] The invention belongs to the technical field of low-temperature refrigeration composite phase change energy storage materials and relates to an organic phase change energy storage material. The invention also relates to a preparation method of the organic phase change energy storage material. Background technique [0002] Phase change materials are divided into organic phase change materials and inorganic phase change materials. Inorganic phase change materials include crystalline hydrated salts, molten salts, alloys or metals. These materials have high heat storage density, large thermal conductivity and are cheap. However, they will suffer from supercooling and phase separation during use, which seriously affects Practical applications; organic phase change materials include paraffin, fatty acids, certain higher aliphatic hydrocarbons, alcohols, carboxylic acids and salts. These materials have small volume changes during phase change, high thermal co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L33/24C08K5/09C08K5/101C08K5/05C08K5/01C08J9/40C08J9/26C08F220/54C08F222/38C09K5/06
CPCC08K5/09C08K5/101C08K5/05C08K5/01C08J9/40C08J9/26C08F220/54C09K5/063C08J2201/0464C08J2333/24C08J2471/02C08F222/385C08L33/24Y02E60/14
Inventor 郭彦峰李妍付俊付云岗
Owner XIAN UNIV OF TECH
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