▎ 摘　　要

NOVELTY - Plastic comprises 3-5 pts. wt. maleic anhydride, 40-48 pts. wt. acrylonitrile butadiene styrene (ABS), 20-28 pts. wt. graphene, 1-2 pts. wt. coupling agent, 0.6-1.5 pts. wt. molybdenum disulfide, 0.1-0.3 pts. wt. antioxidant, 36-45 pts. wt. polypropylene (PP) resin, 12-16 pts. wt. talcum powder, 6-10 pts. wt. sawdust, 10-15 pts. wt. metal oxide powder, 8-15 pts. wt. styrene, 16-24 pts. wt. tourmaline and 6-12 pts. wt. Crinum asiaticum. USE - Plastic. ADVANTAGE - The plastic has good heat-conducting property, excellent insulating property, flame retardant property and mechanical property, and satisfies the use requirement of the people. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing plastic, involves: (A) washing and crushing Crinum asiaticum, then adding into the extraction kettle for supercritical carbon dioxide (CO2) fluid extraction at a temperature of 45-55 degrees C, under extraction pressure is 20-34 megapascal (MPa), where CO2 flow rate is 32-40 L/hour for 40-60 minutes and obtaining Crinum asiaticum essence; (B) adding maleic anhydride, ABS and molybdenum disulfide to the reactor and adding 4-8 times diluted toluene, and reacting in a reactor at 85-96 degrees C for 3-4.5 hours to obtain first mixture; (C) mixing first mixture, coupling agent, antioxidant and the graphene, PP resin, tourmaline and Crinum asiaticum essence, where Crinum asiaticum essence is ball milled in a ball mill at 40-48 degrees C and passed through 60-80 mesh to obtain second mixture; (D) stirring and mixing the first mixture, second mixture, coupling agent, antioxidant, talcum powder, wood chips, metal oxide powder and styrene in a high speed mixer for 1-1.5 hours, at a stirring temperature of 60-70 degrees C to get semi-finished product; (E) adding the semi-finished product into the mixer, and compacting at a temperature of 160-165 degrees C, under rotation speed of 1000-1500 revolutions/minute (rpm), to get kneaded mixture; and (F) granulating the kneaded mixture by a granulator to obtain granules, which are placed in a water tank to be cooled, and then dried to obtain finished product.