Flexible heat conduction/heat storage double-function composite material, method for manufacturing same and application of flexible heat conduction/heat storage double-function composite material
A technology of composite materials and phase-change heat storage materials, which is applied in the field of flexible heat conduction/heat storage dual-functional composite materials and their preparation, can solve the problems of inability to absorb or store heat, hinder the application of electronic equipment, and slow response time, etc., to achieve good results Cooling effect, prolonging service life, and reducing hot spot temperature
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[0027] Example 1
[0028] Disperse 40wt% of sodium acetate trihydrate in an aqueous solution and stir uniformly, then disperse 60wt% of graphene in the solution and sonicate for 24 hours to obtain an aqueous solution of graphene-loaded sodium acetate trihydrate particles. The solution is dried and molded to produce a flexible thermal conductivity / heat storage dual-function composite material (film) with graphene as the matrix. Its structure is like figure 1 As shown, 1 is a three-dimensional network structure formed by a high thermal conductivity material, and 2 is a phase change heat storage material particle.
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[0029] Example 2
[0030] Such as figure 2 As shown, 20wt% of paraffin is sprayed and granulated to form micro-nano particles in the spray granulation zone 1 at the upper part of the furnace body, and 80wt% of the nano graphite flakes are blown through the airflow in the blowing zone 3 at the lower part of the furnace body. , The two materials meet in the load zone 2 in the middle of the furnace body, the graphite nano flakes loaded with paraffin wax particles will sink due to gravity, and finally a powder of graphite nano flakes loaded with paraffin wax particles is obtained. The powder can be formed into a continuous flexible heat conduction / heat storage dual-function composite material (film) with nano graphite sheet as a matrix by roll forming.
Example Embodiment
[0031] Example 3
[0032] Disperse 33wt% of calcium chloride hexahydrate in an aqueous solution and stir uniformly, then disperse 67wt% of carbon nanotubes in the solution and sonicate for 24 hours to obtain an aqueous solution of carbon nanotubes loaded with calcium chloride hexahydrate particles. The solution is dried and hot-pressed to produce a flexible thermal conductivity / heat storage dual-function composite material (film) with carbon nanotubes as the matrix.
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