Energy-saving type three dimensional graphene skeleton composite phase change material with heat storage and release performances, and preparation method thereof

Abstract

The invention discloses an energy-saving type three dimensional graphene skeleton composite phase change material with heat storage and release performances, and a preparation method thereof. The phase energy-saving type three dimensional graphene skeleton composite phase change material is obtained through self-assembling graphen in an organic phase change material in a three dimensional skeleton interconnection form, and comprises 5-95 mass% of the organic phase change material, and the balance of graphene. The graphene composite phase change material can effectively solve the leakage problem of the organic phase change material, the three dimensional skeleton network distributed graphene greatly improves the heat conductivity of the phase change material, and provides a rapid transmission channel for heat energy collection and storage and later heat energy use; the preparation method has the advantages of simple operation, low cost and easy popularization; and the heat storage ability and the phase change temperature of the graphene composite phase change material prepared through the method depend on different selected phase change materials to meet different application channels, so wide prospect is provided for future application of the material.

Description

1. Technical field [0001] The invention relates to a nanometer material and a preparation method thereof, in particular to an energy-saving three-dimensional graphene skeleton composite phase change material with heat storage and heat release performance and a preparation method thereof. 2. Background technology [0002] The current energy and environmental crises are increasingly intensified, forcing people to use existing energy as rationally and efficiently as possible while looking for and utilizing renewable energy. That is to say, the rational use of existing non-renewable energy and the development of renewable new energy occupy the same position. Saving the use of existing non-renewable energy is the key to the rational use of existing energy, and it is also the core of people's attention, and the level of energy saving is one of the important symbols to measure the advanced level of a country's science, technology and industry. [0003] Thermal energy is the most w...

AI Technical Summary

Problems solved by technology

However, its own shortcomings such as easy leakage, high packaging requirements, and easy aging limit its application in the field of heat dissipation of electronic devices.

On the other hand, low thermal conductivity is another technical bottleneck that limits the large-scale application of organic phase change heat storage materials.

Therefore, combining the advantages of the two phase changes, people have developed shape-fixed phase-change materials, which have improved the performance of phase-change heat storage materials to a certain extent, but traditional shape-fixed phase-change materials still have problems in packaging and other aspects in practical applications. The shortcomings of the above two systems cannot be fundamentally changed

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