Energy-saving environmentally-friendly phase change energy storage material and preparation method thereof

Abstract

The invention provides an energy-saving environmentally-friendly phase change energy storage material which is prepared by the following steps of: adding capric acid and lauric acid to a sealed mixer to prepare a ternary composite phase change material; internally mixing ethylene-propylene diene copolymer and the ternary composite phase change material; discharging the material after internal mixing into an extruder, and extruding to obtain sheets; carrying out irradiation cross-linking on the extruded sheets; and crushing the cross-linked thermosetting polymer sheets by an ultralow-temperature crusher to obtain the energy-saving environmentally-friendly phase change energy storage material. The obtained material has a better coating effect than microcapsules, is low in production cost and easy in process control, can be prepared into a filling power material, and can be added to multiple materials. The product has phase change temperature about 23 DEG C, can be cycled for a long term, is nontoxic in use and is harmless to a human body. The material can be added to a polymer-based composite material, and can be prepared into phase change automobile internal decoration materials, automobile mattress, heat storage temperature-adjusting floors, building phase change wall interlayers, inner wall phase change heat-insulating materials, phase change wallpaper, bedclothes, phase change coatings and the like.

Description

technical field [0001] The invention relates to an energy-saving and environment-friendly phase change energy storage material-powder irradiation cross-linked EPDM / paraffin-stearic acid [0002] and its preparation method. Background technique [0003] Phase change materials refer to substances that change shape with temperature and can provide latent heat. The process of a phase change material changing from solid to liquid or from liquid to solid is called a phase change process. At this time, the phase change material will absorb or release a large amount of latent heat. Phase change energy storage material is a new type of green and energy-saving material. Its application improves energy utilization and reduces energy consumption. Applying phase change materials to the environment where people live or stay can greatly reduce temperature fluctuations and improve the environment. Comfort creates conditions for the application of low-cost clean energy in air conditioning ...

AI Technical Summary

Problems solved by technology

However, the preparation process of microcapsules is complicated, and the method of polymerization is generally used, which requires high equipment requirements, high production costs, low coating rate of materials, and high prices.