Solid-solid phase change material as well as preparation method and application thereof

A solid-solid phase change material, n-tetradecane technology, applied in applications, heat exchange materials, chemical instruments and methods, etc., can solve the problems of ice box deformation, instability, volatile, etc. shape stable effect

Inactive Publication Date: 2020-08-25
ACADEMY OF MILITARY MEDICAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to meet this temperature requirement, the commonly used cooling agents are paraffin, alcohol and higher alkanes, etc., but these materials have defects such as corroding the surface of the container, easy to precipitate, and easy to volatilize, which will cause deformation of the ice box during use. Constantly decreasing resulting in unstable performance

Method used

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  • Solid-solid phase change material as well as preparation method and application thereof
  • Solid-solid phase change material as well as preparation method and application thereof
  • Solid-solid phase change material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Embodiment 1, solid-solid phase change material and its preparation

[0044] Weigh 855g of n-tetradecane and 45g of n-tridecane, pour them into the reactor and heat to 60°C, weigh 100g of ultrafine 52° semi-refined paraffin wax and add it to the reactor, turn on the stirrer, and continue to heat up to 80°C. Stir continuously, observe that the superfine 52° semi-refined paraffin is completely dissolved, cool down to 60°C, and let stand for 30 minutes. Cool to room temperature (25°C) to obtain a solid phase change material, also known as a solid phase change cool storage agent.

[0045] Cool the temperature to 60°C and let it stand for 30 minutes during the above process of preparing the solid-solid phase change material, and then pour it into a corresponding container (such as a plastic box, a plastic hollow plate or a plastic bag) to obtain a cold storage device.

[0046] The freeze-thaw curve of the solid phase change material obtained in this example is as follows f...

Embodiment 2

[0048] Embodiment 2, solid-solid phase change material and preparation thereof

[0049] Weigh 831.6g of n-tetradecane and 48.4g of n-tridecane, pour them into the reactor and heat to 60°C, weigh 120g of ultra-fine 52° semi-refined paraffin and add them to the reactor, turn on the stirrer, and continue to heat up to 80°C ℃, keep stirring, observe that the ultra-fine 52° semi-refined paraffin is completely dissolved, cool down to 60 ℃, and let it stand for 30 minutes. Cool to room temperature (25°C) to obtain a solid phase-change cool storage agent.

[0050] Cool the temperature to 60°C and let it stand for 30 minutes during the above process of preparing the solid-solid phase change material, and then pour it into a corresponding container (such as a plastic box, a plastic hollow plate or a plastic bag) to obtain a cold storage device.

[0051] The freeze-thaw curve of the solid phase change material obtained in this example is as follows figure 1 As shown, the obtained solid...

Embodiment 3

[0053] Embodiment 3, solid-solid phase change material and preparation thereof

[0054] Weigh 827.2g of n-tetradecane and 52.8g of n-tridecane, pour them into the reactor and heat to 60°C, weigh 120g of ultra-fine 52° semi-refined paraffin and add them to the reactor, turn on the stirrer, and continue to heat up to 80°C ℃, keep stirring, observe that the ultra-fine 52° semi-refined paraffin is completely dissolved, cool down to 60 ℃, and let it stand for 30 minutes. Cool to room temperature (25°C) to obtain a solid phase-change cool storage agent.

[0055] Cool the temperature to 60°C and let it stand for 30 minutes during the above process of preparing the solid-solid phase change material, and then pour it into a corresponding container (such as a plastic box, a plastic hollow plate or a plastic bag) to obtain a cold storage device.

[0056] The freeze-thaw curve of the solid phase change material obtained in this example is as follows figure 1 As shown, the obtained solid...

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Abstract

The invention discloses a solid-solid phase change material as well as a preparation method and application thereof. The solid-solid phase change material disclosed by the invention is prepared from the following components in percentage by mass: 80-87% of n-tetradecane, 3.8%-5.8% of n-tridecane, and the balance of superfine 52-degree semi-refined paraffin, totaling 100%. The preparation method ofthe solid-solid phase change material comprises the following steps: mixing and heating the n-tetradecane and the n-tridecane, then adding the superfine 52-degree semi-refined paraffin wax, heating and stirring until the paraffin wax is dissolved to obtain a solution system, stopping stirring and preserving heat of the solution system, and then cooling the solution system to room temperature to obtain the solid-solid phase change material. The crystallization temperature of the solid-solid phase change material can meet the refrigeration temperature required by the blood storage environment.The material is stable in shape, the material cannot seep out of an outer package at high temperature when the material is prepared into a cold accumulation device by means of filling, the problem ofpossible pollution is avoided, and the material is safe to use, free of risk and long in service life.

Description

technical field [0001] The invention relates to a solid-solid phase change material and its preparation method and application, belonging to the technical field of cold chain transportation. Background technique [0002] Blood stores a variety of nutrients, such as inorganic salts, oxygen, cell metabolites, hormones, various hormones and antibodies, etc. Due to the special nature of blood, there are strict requirements on the temperature of blood storage and transportation. It is stipulated that the blood must be stored at a temperature of 4°C ± 2°C to ensure that the activity of enzymes in the blood is relatively low and prevent enzymes from destroying blood components. The metabolism of cells in the blood is relatively slow and the storage time is prolonged. [0003] In order to meet this requirement, during the short-term storage and transportation of blood, a blood incubator is usually used as a heat preservation method to meet the storage environment requirements of blo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/02F25D3/06F25D3/08A01N1/02
CPCA01N1/0257C09K5/02F25D3/06F25D3/08
Inventor 阎少多付秋霞王蕾易晓阳赵纪凤王东根刘敏霞韩颖
Owner ACADEMY OF MILITARY MEDICAL SCI
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