▎ 摘　　要

NOVELTY - Device comprises four-neck flask (2) connected to a controllable and adjustable condenser tube, which is connected to first-stage condenser tube through an elbow. The first-stage condenser is connected to collection bottle (4) through the condenser. The collection bottle is provided with a flared conduit and is immersed in a cold trap (3). The collection bottle is connected to a second-stage condenser through pipe. The second-stage condenser is connected to Montessori washing bottle (5) through a rubber tube. The mouth of four-neck flask is respectively provided with an air intake three-way piston (6), thermometer, and electromechanical stirrer. USE - The device is useful for synthesizing graphene polycarbonate composite material. ADVANTAGE - The material: has good thermal stability and its by-product phenol purity is more than 95.6%; and has the potential to be directly used as organic chemical raw materials. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) graphene polycarbonate composite material comprising 10-50 pts. wt. hydroxylated graphene powder, 1000 pts. wt. bisphenol A, 1010-1050 pts. wt. diphenyl carbonate, 3-5 pts. wt. catalyst, 3-10 pts. wt. interface compatibilizer, and 100-250 pts. wt. functional monomer; and (2) synthesizing graphene polycarbonate composite material comprising (a) adding 10-50 pts. wt. hydroxylated graphene powder and 3-10 pts. wt. interfacial compatibilizer into four-neck flask containing 1010-1050 pts. wt. diphenyl carbonate, stirring at a rate of 150-300 revolutions/minute for 30-45 minutes, heating in a constant temperature oil bath at 80-90 degrees C, and using ultrasonic dispersion rod for ultrasonic dispersion for 30-40 minutes to obtain molten mixture, (b) adding 1000 pts. wt. bisphenol A, 100-250 pts. wt. functional monomers and 3-5 pts. wt. catalyst to molten mixture, maintaining the stirring rate of 150-300 revolutions/minute for 1-2 hours, heating the constant temperature oil bath at 160-180 degrees C, and performing ultrasonic dispersion for 40-60 minutes with an ultrasonic dispersion rod to obtain homogeneous mixture, (c) maintaining the homogeneous mixture for performing polymerization reaction at 180-200 degrees C for 3-4 hours while evacuating for maintaining the vacuum at -0.3 to -0.1 MPa, heating the constant temperature oil bath at 220-260 degrees C, maintaining the polymerization reaction for 6-8 hours, drawing a vacuum, maintaining the vacuum degree at -0.4 to -0.2MPa, gradually restoring the normal pressure to obtain hydroxylated graphene polycarbonate composite, and collecting the by-product phenol from the reaction system, and (d) transferring the hydroxylated graphene carbonic acid polyester composite to pre-prepared homemade mold, cooling to obtain graphene polycarbonate composite material, and then collecting after vacuum drying and other post-processing procedures. DESCRIPTION OF DRAWING(S) - The diagram shows a schematic representation of the device for synthesizing graphene polycarbonate composite material. Four-neck flask (2) Cold trap (3) Collection bottle (4) Montessori washing bottle (5) Air intake three-way piston (6)