Highly heat-conducting phase change heat storage material and preparation method therefor
A phase-change heat storage material and heat storage material technology, applied in the field of phase-change heat storage materials, can solve problems such as liquid leakage, poor thermal conductivity, and insufficient solar energy, and achieve fast heat absorption and release, high thermal conductivity, and prevent leaked effect
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[0019] Below with example, the embodiment of the present invention is described further:
[0020] Process the through-hole foamed aluminum into a cylinder of φ46*1500. Make a mold according to the size of φ46*1500, and put the finished through-hole foamed aluminum into the mold. The dry graphite powder is placed in a closed container and heated to 800°C to form expanded graphite. Heat and melt the paraffin, add expanded graphite at a mass ratio of 10%, stir and absorb for 1 hour, then inject the mixture into a mold, so that the liquid amount of the mixture just submerges the through-hole foamed aluminum. After cooling and removing the mold, a shaped heat storage material is obtained. The through-hole foamed aluminum selects a material with a porosity of 90%, so the mass fraction of the through-hole foamed aluminum in the mixture accounts for 25%, the mass fraction of paraffin wax accounts for 67.5%, and the mass fraction of expanded graphite accounts for 7.5%. The latent he...
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