Aluminum alloy/graphene-carbon fiber thin film composite quick-frozen plate and preparation method thereof
A technology of carbon fiber and graphene, which is applied in the field of aluminum alloy/graphene-carbon fiber film composite quick-freezing plate and its preparation, can solve the problems of sanitation and health discount, time is difficult to control, reduce softness and freshness, etc., and achieve high thermal conductivity and cooling performance, and the effect of equalizing temperature
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Embodiment 1
[0018] First add flake graphite with a particle size of 100 mesh into the reaction kettle, add a strong protonic acid with a concentration of 17mol / L under the condition of an ice-water bath, control the temperature at 20°C, add a strong oxidant to oxidize, and obtain a graphene oxide solution after 3 hours of ultrasonic stripping Add the chopped carbon fibers with a length of 6mm in the graphene oxide solution, and after mixing evenly with 2000rpm in the solid-liquid dispersion equipment, suction filtration forms the graphene oxide-carbon fiber film, and dries for subsequent use; then the graphene oxide- After the carbon fiber film is carbonized at 4h at 900°C and graphitized at 5h at 2000°C, a graphene-carbon fiber film is prepared; then a graphite high thermal conductivity double-sided tape with a graphite particle diameter of 3 microns is attached to both sides of the graphene-carbon fiber film , and then the 7075 aluminum alloy with a thickness of 4mm and the 5A02 aluminum...
Embodiment 2
[0020] First add flake graphite with a particle size of 300 mesh into the reaction kettle, add a strong protonic acid with a concentration of 18mol / L in an ice-water bath, control the temperature at 25°C, add a strong oxidant to oxidize, and obtain a graphene oxide solution after 4 hours of ultrasonic stripping Add the chopped carbon fibers with a length of 10mm in the graphene oxide solution, and after mixing evenly with 2500rpm in the solid-liquid dispersion equipment, suction filtration forms the graphene oxide-carbon fiber film, and dries for subsequent use; then the graphene oxide- After the carbon fiber film is carbonized at 1200°C for 8h and graphitized at 2100°C for 7h, a graphene-carbon fiber film is prepared; then a graphite high thermal conductivity double-sided tape with a graphite particle diameter of 5 microns is attached to both sides of the graphene-carbon fiber film , and then the 7075 aluminum alloy with a thickness of 5mm and the 5A06 aluminum alloy with a th...
Embodiment 3
[0022] First add flake graphite with a particle size of 500 mesh into the reaction kettle, add a strong protonic acid with a concentration of 19mol / L in an ice-water bath, control the temperature at 30°C, add a strong oxidant to oxidize, and obtain a graphene oxide solution after 6 hours of ultrasonic stripping Add the chopped carbon fibers with a length of 20mm in the graphene oxide solution, and after mixing uniformly with 3000rpm in the solid-liquid dispersion equipment, suction filtration forms the graphene oxide-carbon fiber film, and dries for subsequent use; then the graphene oxide- After the carbon fiber film is carbonized at 1400°C for 12h and graphitized at 2300°C for 10h, a graphene-carbon fiber film is prepared; then a graphite high thermal conductivity double-sided tape with a graphite particle diameter of 6 microns is attached to both sides of the graphene-carbon fiber film , the 7A09 aluminum alloy with a thickness of 6mm and the 5A06 aluminum alloy with a thickn...
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