▎ 摘　　要

NOVELTY - Method for preparing layered graphene using flash evaporation technique, which involves: i. weighing the amorphous conductive carbon powder; ii. cleaning the quartz tube; iii. introducing the weighed amorphous conductive carbon powder into a clean quartz tube, inserting copper plugs at both ends into the quartz tube, and pushing the copper plugs into both ends of the amorphous conductive carbon powder to fully compress and compacting the carbon powder; iv. adding the prepared sample into the flash evaporator, and connecting the wires at both ends of the quartz tube; v. closing the vacuum chamber and use a mechanical pump to start vacuuming to 10-1 pascal; vi. setting the flash parameters: pretreatment voltage 50 Volt (V), pretreatment power 20 watt (W), pretreatment time 300 seconds, pretreatment times 3 times, flash voltage 90-130 V, Flash power 100W, flash time 500 seconds, discharge self-check 30 seconds. USE - Method for preparing layered graphene using flash evaporation technique ADVANTAGE - Flash Joule heating technology is used for processing the amorphous conductive carbon powder on a large scale, so that the greenhouse gas emission of the plastic in the process of recycling from the cradle to the upper part is reduced, graphene is prepared from carbon powder, and then various plastics which are difficult to naturally degrade and substances which are harmful to the biological environment is used for flash Joule heating technology treatment, so that waste materials are changed into valuable materials and are put into production and life again. DETAILED DESCRIPTION - Method for preparing layered graphene using flash evaporation technique, which involves: i. weighing the amorphous conductive carbon powder; ii. cleaning the quartz tube; iii. introducing the weighed amorphous conductive carbon powder into a clean quartz tube, inserting copper plugs at both ends into the quartz tube, and pushing the copper plugs into both ends of the amorphous conductive carbon powder to fully compress and compacting the carbon powder; iv. adding the prepared sample into the flash evaporator, and connecting the wires at both ends of the quartz tube; v. closing the vacuum chamber and use a mechanical pump to start vacuuming to 10-1 pascal; vi. setting the flash parameters: pretreatment voltage 50 volt (V), pretreatment power 20 watt (W), pretreatment time 300 seconds, pretreatment times 3 times, flash voltage 90-130 V, flash power 100 W, flash time 500 seconds, discharge self-check 30 seconds; vii. after the flash evaporation, taking part of the sample and dispersing it in cycloethane to prepare a transmission electron microscopes detection sample. DESCRIPTION OF DRAWING(S) - The drawing shows a transmission electron microscopes image of the sample prepared using the flash voltage of 90 volt.