Graphite-copper based composite material with network interpenetration structure and preparation method of graphite-copper based composite material
A technology of copper-based composite materials and network interpenetration, which is applied in the field of graphite-copper-based composite materials and its preparation, can solve the problems of low mechanical properties of materials, failure of composite materials, etc., and achieve the effect of low production cost and high efficiency
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Embodiment 1
[0031] The thickness is 0.2mm and the thermal conductivity is 1200W·m -1 ·K -1 The continuous flakes of graphite were used as the reinforcing phase, and the surface oil was removed by ultrasonic treatment with acetone. Use a carving knife to carve U-shaped lines on the graphite surface, and the local areas of the lines are as follows: figure 2 shown. Among them, h, l, a, and b are 2mm, 3.5mm, 2mm, and 3mm respectively, and the engraved U-shaped lines are turned up one by one to obtain a three-dimensional graphite sheet.
[0032] The electroless copper plating process is used to carry out electroless copper plating on graphite sheets: the electroless copper plating sensitization stage process is to add graphite sheets to 500ml of 20ml / LHCl+20g / LSnCl 2 solution, stir the solution for 15 minutes, pour off the solution, and rinse with distilled water for 3 times; the activation stage process is: add 200ml of 20ml / L HCI+0.5g / LPdCl to the sensitized graphite sheet 2 solution, s...
Embodiment 2
[0035] Take three pieces of equal size, the thickness is 0.1mm, and the thermal conductivity is 1500W·m -1 ·K -1 The continuous flakes of graphite were used as the reinforcing phase, and the surface oil was removed by ultrasonic treatment with acetone. Carve U-shaped lines on the surface of the graphite with a carving knife respectively. The size of the lines is as follows: image 3 As shown, where h is 2.2mm, 2.1mm, and 2mm respectively, l is 6mm, 5mm, and 4mm, a is 3mm, and b is 3mm. Turn up the engraved U-shaped lines one by one to get a three-dimensional graphite sheet.
[0036] Apply electroless copper plating process to graphite sheet to carry out electroless copper plating on graphite sheet: the electroless copper plating sensitization stage process is to add graphite sheet to 500ml of 20ml / LHCl+20g / LSnCl 2 solution, stir the solution for 15 minutes, pour off the solution, and rinse with distilled water for 3 times; the activation stage process is: add 200ml of 20ml / ...
Embodiment 3
[0039] Thickness is 1mm, thermal conductivity is 1500W·m -1 ·K -1 The continuous flakes of graphite were used as the reinforcing phase, and the surface oil was removed by ultrasonic treatment with acetone.
[0040] Use a carving knife to carve U-shaped lines on the surface of graphite, the size of which is as follows figure 2 Shown, where h, l, a, b are 2mm, 3.5mm, 2mm, 3mm respectively. Turn up the engraved U-shaped lines one by one to get a three-dimensional graphite sheet.
[0041] The surface of graphite was plated with Cr by vacuum micro-evaporation plating technology. Add enough CrCl 3 with CrH 3 Mixed according to the mass ratio of 10:1, placed in the vacuum micro-evaporation reaction chamber, after putting the graphite sheet, the reaction chamber was evacuated to 10 -3 Pa. Heat the reaction chamber to 680°C, control the vacuum degree in the reaction chamber within the range of 5-8Pa, and conduct vacuum micro-evaporation plating on the graphite sheet for 2 hours...
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