High-stability composite phase change gel for medical cold chain transportation at 2-8 DEG C

Abstract

The invention provides a high-stability composite phase change gel for 222 DEG C medicine cold chain transportation. The high-stability composite phase change gel comprises a phase-change cold accumulation agent, wherein the anti-settling agent is formed by mixing water, an alcohol phase-change material, first-class particles, a pH regulator and anti-settling particles, wherein the mass percent ofthe water is 5.2%-24.2%; the mass percent of the alcohol phase change material is 75.2%-94.2%; the mass percent of the first kind of particles is 0.1%-2%; the mass percent of the pH regulator is 0.04%-0.2%, the mass percent of the anti-settling particles is 0.3%-1.4%, the alcohol phase change material is polyhydric alcohol or a mixture of polyhydric alcohols, the pH regulator is an alkaline substance, and the anti-settling particles are at least one of polyphosphate and polyacrylate; and a nanogel having a three-dimensional network structure in which the second type of particles are used as nodes, and the mass ratio of the phase change coolant to the nanogel is 20: 1 to 25: 1. According to the present invention, the high-stability composite phase change gel with characteristics of high phase change latent heat and good cycle stability and used for 222 DEG C medicine cold chain transportation can be provided.

Description

technical field [0001] The disclosure relates to a high-stability composite phase-change gel for cold-chain transportation of medicines at 222°C. Background technique [0002] With the rapid development of modern logistics and the increasing demand for cold chain pharmaceuticals, pharmaceutical cold chain logistics has also received more attention. In particular, in the process of medical cold chain transportation, it is necessary to strictly control the temperature and fluctuation range to store or transport drugs, vaccines, blood products and other items to ensure their quality and effect. The temperature is approximately constant, and the output energy is stable, etc., and the coupling of medical cold chain transportation can keep the temperature at a constant temperature, save energy and reduce consumption. [0003] In addition, the main working medium in the phase change energy storage technology system is the phase change material, which directly determines the qualit...

AI Technical Summary

Problems solved by technology

At present, inorganic hydrated salts and organic phase change materials are often used in pharmaceutical cold chain transportation phase change materials. However, inorganic hy

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