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A phase change cold storage composite material based on butanediol

A technology of phase change cold storage and composite materials, applied in the direction of heat exchange materials, chemical instruments and methods, etc., can solve the problems of packaging leakage, cleaning troubles, etc., and achieve high phase change heat, low phase change temperature, and good cold storage capacity Effect

Active Publication Date: 2017-09-22
宁海德宝立新材料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Chinese patent CN 102732228 B discloses a phase change cold storage material based on dodecyl alcohol and paraffin, which uses dodecyl alcohol and paraffin as the main body of the phase change material. Although the current research on the safety of dodecyl alcohol is not sufficient, we know ten Glycol is a liquid with a pungent smell, long-term inhalation can cause headaches and nausea, and lauryl alcohol is an oil-soluble substance, it will be very troublesome to clean if the package leaks

Method used

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  • A phase change cold storage composite material based on butanediol
  • A phase change cold storage composite material based on butanediol
  • A phase change cold storage composite material based on butanediol

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preparation example Construction

[0078] The present invention also provides a preparation method of a phase change cold storage composite material, which comprises the following two steps:

[0079] (1) butanediol, glycerol and nucleating agent will be weighed and added in the container;

[0080] (2) Mixing the materials added into the container to obtain a phase change cold storage composite material.

[0081] In the above preparation method, the butanediol, glycerin and nucleating agent are weighed according to the proportioning of the following weight components:

[0082] Butanediol: 8-10 parts,

[0083] Glycerin: 0.1-3 parts,

[0084] Nucleating agent: 0.05-1.5 parts.

[0085] In the above preparation method, the butanediol is preferably 1,4-butanediol.

[0086] In the above preparation method, the nucleating agent is selected from one or more of the following: glutaric acid, p-chlorobenzoic acid, polyethylene glycol, polyacrylamide and polyvinylpyrrolidone.

[0087] In the above preparation method, t...

Embodiment 1

[0112] (1) Weigh 0.3g of polyethylene glycol 20000, 8.71g of 1,4-butanediol and 1.19g of glycerin, add the weighed butanediol into the beaker, add the weighed glycerin into it, and then add the weighed Good macrogol 20000;

[0113] (2) Stir the above components evenly, and after the polyethylene glycol 20000 is completely melted, place the sample in ice water, wherein the temperature of the ice water is kept at 0°C, and the phase change cold storage composite material I is prepared.

[0114] The prepared phase change cold storage composite material I was characterized by infrared spectroscopy, and its infrared characteristic peak was: 3294cm -1 , 2936cm -1 , 2869cm -1 , 1434cm -1 , 1377cm -1 , 1222cm -1 , 1172cm -1 , 1047cm -1 , 1007cm -1 , 978cm -1 , 832cm -1 .

Embodiment 2

[0116] (1) At room temperature, weigh 0.3g of p-chlorobenzoic acid, 8.71g of 1,4-butanediol and 1.19g of glycerol, add the weighed 1,4-butanediol into the beaker, and then add the weighed Glycerol, finally add the p-chlorobenzoic acid weighed;

[0117] (2) Stir and mix the above components evenly to prepare the phase change cold storage composite material II.

[0118] The prepared phase-change cold storage composite material II was characterized by infrared spectroscopy, and its infrared characteristic peak was: 3297cm -1 , 2936cm -1 , 2888cm -1 , 1433cm -1 , 1376cm -1 , 1222cm -1 , 1175cm -1 , 1047cm -1 , 1006cm -1 , 978cm -1 , 944cm -1 , 833cm -1 .

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Abstract

The invention provides a phase-change cold accumulation composite material based on butanediol. The phase-change cold accumulation composite material comprises 8-10 parts of polyethylene glycol and 0.1-3 part of glycerinum; moreover, the phase-change cold accumulation composite material further comprises 0.05-1.5 parts of a nucleating agent. The phase-change cold accumulation composite material provided by the invention has higher phase-change heat and lower phase-change temperature, can be repeatedly used, and has good cold accumulation capacity. Moreover, the preparation method of the phase-change cold accumulation composite material provided by the invention is simple, feasible and low in cost.

Description

technical field [0001] The invention relates to a phase-change cold storage composite material, in particular to a phase-change cold storage composite material based on butanediol whose phase transition temperature is between 10°C and 25°C. Background technique [0002] There are usually two ways for materials to store thermal energy: sensible heat and latent heat (latent heat is the heat of phase change). Sensible heat storage is carried out by using the specific heat capacity of the material and the temperature change of the material; latent heat storage is carried out by using the energy absorption and release of the substance during the state transition process, and the latent heat storage is usually much higher than the sensible heat storage. Therefore, using the latent heat of materials for energy storage and cold storage has a broader prospect. [0003] As stated in the non-patent literature "Phase Change Materials and Phase Change Energy Storage Technology", phase c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K5/06
CPCC09K5/066Y02E60/14
Inventor 卢欣楠贺安琪韩晓宁陈靖张晓曦刘涛徐怡庄
Owner 宁海德宝立新材料有限公司
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