Cold storage material with phase transformation point between 2 DEG C and 8 DEG C and preparation method thereof

Abstract

The invention discloses a cold storage material with a phase transformation point between 2 DEG C and 8 DEG C and a preparation method thereof. The preparation method includes the following steps that at the room temperature, decane, undecane, dodecane, tridecane, tetradecane, pentadecane and hexadecane are mixed and stirred for 10 min to obtain liquid A; at the room temperature, 4-nitrophenol, cetyl-trimethyl ammonium bromide and 800-mesh copper powder are added into the liquid A and stirred for 1-2 h, the mixture is filtered, filter residues are removed, filtrate is collected, and the cold storage material with the phase transformation point between 2 DEG C and 8 DEG C is obtained. The material and the preparation method have the advantages that the phase transformation point is between 2 DEG C and 8 DEG C, the phase transformation temperature is proper, evaporation latent heat is large, and the cold storage effect is good; the process is simple, and the phase transformation temperature can be easily controlled by adjusting the proportions of the components in the preparation process; before use, the material is frozen at the temperature lower than that of the phase transformation point of the cold storage material and higher than the required lowest temperature for use, temperature balance is not needed, operation is simplified, and the work efficiency is greatly improved.

Description

technical field [0001] The invention relates to a cold storage material and a preparation method thereof, in particular to a cold storage material with a phase transition point between 2°C and 8°C and a preparation method thereof, belonging to the field of chemical technology. Background technique [0002] Biological products such as vaccines and diagnostic reagents are important safeguards to prevent disease infection and maintain human life and health. With the development of modern society, more and more biological products need to be refrigerated and insulated for transportation. Large quantities of products can be refrigerated and transported through refrigerated trucks with fuel and electricity. It is more common for small batches of products to be transported by road, railway, and air, and based on economic considerations, this type of transportation cannot be completely replaced by refrigerated truck transportation in the short term. The use of phase change cold st...

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Problems solved by technology

[0005] In order to solve the technical problem that biological products are easily overcooled due to the lack of suitable cold storage materials in the transportation process of existing biological products, the purpose of the present invention is to provide a cold storage material with a phase change point between 2°C and 8°C and its Preparation

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