Method for improving graphene and copper basal body binding force in copper-based graphene composite material
A graphene composite and composite material technology, which is applied in the field of improving the bonding force between graphene and copper matrix in copper-based graphene composite materials, can solve the problems of weakening the performance of graphene, achieve good application prospects, excellent electrical conductivity, and enhance interface bonding force effect
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Embodiment 1
[0028] The present embodiment provides a kind of high-performance copper-chromium alloy graphene composite material, and the preparation method of this composite material is as follows:
[0029] (1) Copper powder and chromium powder are mechanically alloyed to obtain copper-chromium alloy powder, wherein the atomic percentage of chromium powder accounts for 1%;
[0030] (2) take graphene, the ratio of the quality of the graphene quality and the copper-chromium alloy powder in step (1) is 2:998, this graphene is added in the ultrasonic 2h in ethanol, obtains that concentration is 0.2g / L Graphene ethanol dispersion;
[0031] (3) the copper chromium alloy powder that step (1) obtains is joined in the ball mill jar, pours the graphene dispersion liquid prepared in step (2) again and carries out high-speed ball milling, is 2:1 by ball material ratio, and ball milling speed is 300r / min, ball milling time 10h, then the slurry is suction-filtered and vacuum-dried to obtain copper-ch...
Embodiment 2
[0047] The present embodiment provides a kind of high-performance copper-titanium alloy graphene composite material, and the preparation method of this composite material is as follows:
[0048] (1) Mechanically mixing copper powder and titanium powder to obtain copper-titanium alloy powder, wherein the atomic percentage of titanium powder accounts for 2%;
[0049] (2) Take graphene, the ratio of the graphene quality to the mass of the copper-titanium alloy powder in step (1) is 5:995, add the graphene to ethanol for ultrasonic 2h, and obtain a concentration of 0.3g / L Graphene ethanol dispersion;
[0050] (3) The copper-titanium alloy powder that step (1) obtains is added in the ball mill jar, pours the graphene dispersion liquid that step (2) prepares again and carries out high-speed ball milling, is 2:1 by ball material ratio, and ball milling speed is 400r / min, the ball milling time is 10h, then the slurry is suction-filtered and vacuum-dried to obtain copper-titanium all...
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