Low-temperature phase-change cold storage material suitable for medical cold-chain transportation and preparation method of low-temperature phase-change cold storage material

A low-temperature phase change and cold storage material technology, which is applied in the direction of heat exchange materials, chemical instruments and methods, etc., can solve the problems of insufficient product quality assurance, large subcooling degree and poor stability of cold storage materials, and achieves high latent heat. , Long holding time and high stability

Pending Publication Date: 2022-03-15
江苏金合能源科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In recent years, under the background of the global epidemic, medical cold chain transportation has attracted more and more attention. The traditional cold chain transportation of low-temperature phase change cold storage materials has a large degree of supercooling, poor thermal conductivity and poor stability, resulting in huge energy consumption and energy waste. The situation is serious and the product quality cannot be fully guaranteed

Method used

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  • Low-temperature phase-change cold storage material suitable for medical cold-chain transportation and preparation method of low-temperature phase-change cold storage material
  • Low-temperature phase-change cold storage material suitable for medical cold-chain transportation and preparation method of low-temperature phase-change cold storage material
  • Low-temperature phase-change cold storage material suitable for medical cold-chain transportation and preparation method of low-temperature phase-change cold storage material

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Embodiment 1

[0030] A method for preparing a low-temperature phase-change cold storage material suitable for medical cold chain transportation, comprising the following steps:

[0031] (1) In terms of mass percentage, add 19.45% sodium formate to 69.85% 35°C constant temperature ultrapure water, use inclined blades to open the turbine stirrer, and stir at a rate of 1300rpm for 5min;

[0032] (2) Add 6.2% ammonium chloride into the constant temperature salt solution at 35°C obtained in step (1), and turn on the turbine stirrer with inclined blades, the stirring rate is 800rpm, and the time is 5min;

[0033] (3) Add 1.5% trimethylolpropane to the constant temperature solution at 35°C obtained in step (2), and turn on the turbine stirrer with inclined blades at a stirring rate of 900 rpm for 7 minutes;

[0034] (4) Add 2% sodium polyacrylate to the constant-temperature mixed salt solution obtained in step (3), use the inclined blade to open the turbine agitator, the stirring rate is 6500rpm, ...

Embodiment 2

[0038] A method for preparing a low-temperature phase-change cold storage material suitable for medical cold chain transportation, comprising the following steps:

[0039] (1) In terms of mass percentage, add 21.5% sodium formate to 69.4% 35°C constant temperature ultrapure water, use inclined blades to open the turbine stirrer, and stir at 1500rpm for 6 minutes;

[0040] (2) Add 5.1% ammonium chloride into the 35°C constant-temperature salt solution obtained in step (1), and turn on the turbine stirrer with inclined blades at a stirring rate of 900 rpm for 7 minutes;

[0041] (3) Add 1% trimethylolpropane to the 35°C constant temperature solution obtained in step (2), and turn on the turbine stirrer with inclined blades, the stirring rate is 1100rpm, and the time is 8min;

[0042] (4) Add 1.5% sodium polyacrylate into the constant temperature mixed salt solution obtained in step (3), use the inclined blade to open the turbine agitator, the stirring rate is 5700rpm, the time i...

Embodiment 3

[0046] A method for preparing a low-temperature phase-change cold storage material suitable for medical cold chain transportation, comprising the following steps:

[0047](1) In terms of mass percentage, add 18.05% sodium formate to 75.25% 35°C constant temperature ultrapure water, use inclined blades to turn on the turbine stirrer, stir at 1000rpm for 4min;

[0048] (2) Add 4.4% ammonium chloride into the 35°C constant temperature salt solution obtained in step (1), and turn on the turbine stirrer with inclined blades, the stirring rate is 600rpm, and the time is 4min;

[0049] (3) Add 0.8% trimethylolpropane to the 35°C constant temperature solution obtained in step (2), and turn on the turbine stirrer with inclined blades, the stirring rate is 500rpm, and the time is 4min;

[0050] (4) Add 1% sodium polyacrylate to the constant temperature mixed salt solution obtained in step (3), use the inclined blade to open the turbine agitator, the stirring rate is 4800rpm, the time is...

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Abstract

The invention discloses a low-temperature phase change cold storage material suitable for medical cold chain transportation and a preparation method thereof, and belongs to the technical field of phase change energy storage materials. The material comprises the following raw materials in percentage by mass: 11%-23% of sodium formate, 5%-8% of ammonium chloride, 60%-75% of ultrapure water, 1%-2% of trimethylolpropane, 0.5%-2.5% of sodium polyacrylate and 0.5%-1.5% of crystalline flake graphite. The invention also provides a preparation method of the low-temperature phase change cold storage material, and the obtained low-temperature phase change cold storage material has the phase change temperature of-28.5 to-27.5 DEG C, the phase change latent heat of 280KJ / Kg, small supercooling degree, large heat conductivity coefficient, good stability, long service life and no phase separation phenomenon, and can be widely used for storage and transportation of low-temperature frozen foods and medical products.

Description

technical field [0001] The invention belongs to the technical field of phase change energy storage materials, in particular to a low-temperature phase change cold storage material suitable for medical cold chain transportation and a preparation method thereof. Background technique [0002] In the face of the global energy crisis, the development and utilization of new energy has become an important way to deal with the energy crisis. However, the volatility and intermittency of new energy is an important problem restricting its application, and energy storage technology is an important supporting technology to solve this constraint. At present, more than 80% of energy storage is realized through the conversion, storage and transportation of thermal energy. As a kind of thermal energy storage, phase change energy storage is more in line with the development law of clean, economical and efficient thermal storage technology than other storage technologies, and it is easy to be ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/06
CPCC09K5/066
Inventor 牛杰戴鹏张叶龙姜金玉姜琳贾亦轩宋鹏飞
Owner 江苏金合能源科技有限公司
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