▎ 摘　　要

NOVELTY - A reinforced aluminum-based graphene composite material preparing method involves adding nano-graphene to tetrahydrofuran and performing ultrasonic vibration to obtain primary dispersion. The primary dispersion is added with polyvinylpyrrolidone and vibrated to obtain graphene dispersion. Composite conductive agent is prepared. The graphene dispersion is mixed with polyphenol oxide, added with composite conductive agent, mixed and stirred to obtain graphene coating solution. The graphene coating solution is coated on aluminum foil, dried, cured and dried to obtain the finished product. USE - Method for preparing reinforced aluminum-based graphene composite material. ADVANTAGE - The method enables preparing reinforced aluminum-based graphene composite material with excellent heat conduction and heat dissipation effect and wide application value. DETAILED DESCRIPTION - A reinforced aluminum-based graphene composite material preparing method involves adding nano-graphene to tetrahydrofuran and performing ultrasonic vibration for the first time for 1-3 hours under the ultrasonic frequency is 40-60 kHz to obtain primary dispersion. The primary dispersion is added with polyvinylpyrrolidone and subjected to ultrasonic vibration for the second time for 1.5-2 hours under the ultrasonic frequency is 40-60 kHz to obtain graphene dispersion. Composite conductive agent is prepared by mixing acetylene black, Super P (RTM: Conductive carbon black) and Ketjen black (RTM: Electro-conductive carbon black) uniformly. The graphene dispersion with an amount of 10-80 pts. wt. is mixed with 150-375 pts. wt. polyphenol oxide for 3-5 hours, dissolved for 1-3 hours, added with 1-5 pts. wt. composite conductive agent, mixed and stirred for 1-2 hours to obtain graphene coating solution. The graphene coating solution is uniformly coated on an aluminum foil with a thickness of 120-380 nm, dried, cured at 280-330 degrees C for 5-10 seconds and dried in tunnel machine to obtain the finished product.