Preparation method for sample of aluminum-based graphene thermal conductive composite
A heat-conducting composite material and graphene technology, applied in the direction of coating, etc., to achieve the effects of improving non-compactness, rapid and effective preparation, and simplifying the preparation process
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[0027] Example 1
[0028] 1# Preparation of aluminum-based graphene thermally conductive composite material sample, see figure 1 :
[0029] Put 5g of graphene with a particle size of 10μm, 250g of pure aluminum powder with a particle size of 100μm and 1.25g of stearic acid into a planetary ball mill, grind at 400 rpm for 6 hours to obtain graphene-coated metal Particles; then take 250g of pure aluminum and heat it to 580°C to become semi-solid and stir, add all the graphene-coated metal particles, heat and stir for 2 hours, quickly heat up to 720°C to make the aluminum alloy liquid, and cast immediately, get 1# Aluminum-based graphene thermally conductive composite material sample. The thermal conductivity of the 1# aluminum-based graphene thermally conductive composite material sample is 250W / mK.
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[0030] Example 2
[0031] 2# Preparation of aluminum-based graphene thermally conductive composite material sample:
[0032] This embodiment is basically the same as Embodiment 1, and the difference is that the mass of graphene is 0.5 g. The thermal conductivity of the 2# aluminum-based graphene thermally conductive composite material sample is 210W / mK.
Example Embodiment
[0033] Example 3
[0034] 3# Preparation of aluminum-based graphene thermally conductive composite material sample:
[0035] This embodiment is basically the same as Embodiment 1, and the difference is that the mass of the graphene is 15 g. The thermal conductivity of the 3# aluminum-based graphene thermally conductive composite material sample is 270W / mK.
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