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Low-temperature phase change material used in drug cold-chain transportation

A technology of low-temperature phase change and cold chain transportation, applied in the direction of heat exchange materials, chemical instruments and methods, etc., can solve the problem that cold chain medicines do not have phase change cold storage materials, etc., achieve low supercooling, high melting enthalpy, The effect of reducing leakage

Active Publication Date: 2018-04-20
杭州鲁尔新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the problem that there is no suitable phase-change cold storage material for cold-chain medicines that need to be stored and transported at a temperature greater than 0°C and less than 5°C, and provide a low-temperature phase-change cold storage material to ensure that the medicine can be stored and transported under various extreme environmental conditions. Cold chain transportation for 48 hours to 72 hours under high temperature (35°C in summer, -20°C in winter and 35°C to -20°C across regions, etc.) to ensure that the temperature of the drug is maintained at a temperature greater than 0°C and less than 5°C during transportation Within the effective range, it fills the gap that there is no suitable phase change cold storage material available in China

Method used

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Examples

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Embodiment 1

[0026] A low-temperature phase-change material for cold-chain transportation of medicines, which is made by mixing the following components by weight percentage: n-tetradecane 88.5%, n-dodecane 5%, n-tridecane 3%, n-pentadecane 3% alkane, 0.5% isotetradecane.

[0027] Preparation method: put n-tetradecane, n-dodecane, n-tridecane, n-pentadecane, and isotetradecane in different containers, preheat them to 35°C respectively, and put the five preheated materials Pour the mixture into a 500ml three-necked flask in turn, and stir the mixture for 1 hour in a constant temperature water bath at 35°C and a rotation speed of 200-300r / min to form a eutectic mixture. After the reaction is completed, the temperature is naturally lowered to room temperature, and a low-temperature phase change material with a melting point of 2-3°C and which can be used for cold-chain transportation of medicines can be obtained.

Embodiment 2

[0029] A low-temperature phase-change material for cold-chain transportation of medicines, which is made by mixing the following components by weight percentage: n-tetradecane 91.8%, n-dodecane 4%, n-tridecane 2%, n-pentadecane 2% alkane, 0.2% isotetradecane.

[0030] The preparation method is the same as in Example 1.

Embodiment 3

[0032] A low-temperature phase-change material for cold-chain transportation of medicines, which is made by mixing the following components by weight percentage: n-tetradecane 91%, n-dodecane 4%, n-tridecane 2.5%, n-pentadecane 2.2% alkane, 0.3% isotetradecane.

[0033] The preparation method is the same as in Example 1.

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Abstract

The invention discloses a low-temperature phase change material used in drug cold-chain transportation. The low-temperature phase change material is prepared by mixing the following components in percentage by weight: 88.5-91.8% of n-tetradecane, 4-5% of n-dodecane, 2-3% of n-tridecane, 2-3% of n-pentadecane, and 0.2-0.5% of iso-tetradecane. According to the material, the melting point is 2-3 DEGC, so that the drug temperature can be kept within the valid range of 0-5 DEG C during transportation; in addition, the melting enthalpy of the material is high; the degree of supercooling is low; andthe circulating stability is high.

Description

technical field [0001] The invention relates to a low-temperature phase-change material, in particular to a low-temperature phase-change material used for cold-chain transportation of medicines. Background technique [0002] For the cold chain transportation of medicines, refrigerated truck refrigeration units or active refrigerated boxes were mainly used for transportation. These two transportation methods use refrigeration units to work. This cooling mode determines that the compressor needs to consume a lot of energy (fuel) during the low-temperature distribution process, and its fuel consumption per 100 kilometers can reach 2 to 4 liters. In addition, while consuming a large amount of energy, it also causes huge pollution to the environment. Today, with rising oil prices, this delivery model is undoubtedly neither economical nor environmentally friendly. In recent years, under the background of the current energy shortage and the promotion of environmental protection a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/06
CPCC09K5/066
Inventor 王艳黄晓柳黄莉
Owner 杭州鲁尔新材料科技有限公司
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