Phase-change material with phase-change temperature of minus 15 DEG C

Abstract

The invention discloses a phase-change material with the phase-change temperature of minus 15 DEG C. The phase-change material comprises the following components in percentage by weight: 5-25 percent of ammonium chloride, 2.5-25 percent of crylic acid, 5-15 percent of alum, 5-25 percent of maleic anhydride, 5-10 percent of carboxymethyl cellulose sodium, 5-25 percent of oil and the balance of water. Due to the mode, the phase-change material with the phase-change temperature of minus 15 DEG C is large in latent heat of phase change, stable in performance, reversible in phase change process, wide in raw material source, low in cost, safe and reliable, has no phase separation phenomenon after being used for a long time and can be circularly used for more than ten thousand times; the consumption of electric energy is reduced; the positive effects of saving energy and reducing emission are achieved; and the phase-change material can be popularized and applied in refrigerating and freezing processes in food stuff, medicines and the like.

Description

technical field [0001] The invention relates to the field of phase change materials, in particular to a phase change material with a phase change temperature of -15°C. Background technique [0002] Energy is the substance that provides energy conversion to nature and is the material basis of human activities. According to the type of use, energy can be divided into conventional energy and new energy. Conventional energy is relatively mature in technology and widely used, but with the continuous development of human society, people's demand for energy is growing rapidly, especially the world oil crisis that occurred in the 20th century, which made energy issues widely recognized by people. attention, so energy saving has become an urgent problem to be solved. As an energy storage, phase change materials are of great significance in the fields of energy saving and temperature control. [0003] Phase change materials refer to substances that change physical properties and pro...

AI Technical Summary

Problems solved by technology

However, the existing phase change materials have small phase change latent heat, unstable performance, and poor use effect.