▎ 摘　　要

NOVELTY - Printed consumptive material comprises banana straw, disposable plastic, polylactic acid, potassium tripolyphosphate, graphene, triethanolamine soap, compound A and compound B, where compound B includes e.g. cassava starch, dimethyl phosphite, N-ethyl-5-methyl-2-(1-methylethyl)cyclohexanecarboxamide, epoxy bromopropane, carbamide, potassium hydroxide, aluminum titanium composite coupling agent, azobisisobutyric acid(ethylene glycol)ester, vanadium pentoxide, stearic acid, polydimethylsiloxane, dibutyl phthalate and methyl methacrylate-butadiene-styrene terpolymer. USE - Used as printed consumptive material. DETAILED DESCRIPTION - Printed consumptive material comprises 175 pts. wt. banana straw, 40 pts. wt. disposable plastic, 74 pts. wt. polylactic acid, 52 pts. wt. potassium tripolyphosphate, 2 pts. wt. graphene, 0.6 pts. wt. triethanolamine soap, 8.4 pts. wt. compound A and 5.6 pts. wt. compound B, where compound B includes 165 pts. wt. cassava starch, 20 pts. wt. dimethyl phosphite, 8 pts. wt. N-ethyl-5-methyl-2-(1-methylethyl)cyclohexanecarboxamide, 9 pts. wt. epoxy bromopropane, 2.5 pts. wt. carbamide, 2.5 pts. wt. potassium hydroxide, 0.8 pts. wt. aluminum titanium composite coupling agent, 0.2 pts. wt. azobisisobutyric acid(ethylene glycol)ester, 0.4 pts. wt. vanadium pentoxide, 0.5 pts. wt. stearic acid, 0.6 pts. wt. polydimethylsiloxane, 1 pts. wt. dibutyl phthalate, 0.9 pts. wt. methyl methacrylate-butadiene-styrene terpolymer, 0.7 pts. wt. modified rosin resin, 0.6 pts. wt. boric acid and 0.3 pts. wt. ammonium dihydrogen phosphate. An INDEPENDENT CLAIM is also included for preparing printed consumptive material comprising (i) crushing banana straw over 300 mesh sieve to obtain powder, drying powder at 103 degrees C for 2.8 hours, and controlling water content to 0.9% to obtain banana stalk powder, (ii) crushing waste plastic using hard plastic crusher, then using intermittent mixing plastic washing machine through cleaning, removing surface of dirt, and naturally drying to obtain plastic, (iii) placing selected plastic obtained in step (ii) in a low-temperature mill for nitrogen or dry ice, crushing plastic at -110 degrees C for 2 hours, and sieving to obtain 200 mesh plastic granules, (iv) graphene in magnetic field strength of 5800 GS, ultrasonicating at 48 degrees C under power of 420 W, stirring at a speed of 300 revolution/minute for 28 minutes to obtain graphene energy, (v) adding triethanolamine soap into graphene energy obtained in step (iv), modifying at 64 degrees C, and activating at a speed of 120 revolution/minute for 1.2 hours to obtain activated graphene energy powder, (vi) adding plastic granules obtained in step (iii) into banana stalk powder obtained in step (i), activated graphene energy powder obtained in step (v), polylactic acid, potassium tripolyphosphate and compound A, heating at 200 degrees C, stirring at a speed of 300 revolution/minute for 4.3 hours, and cooling to room temperature to obtain 3D printed primary material, (vii) crushing banana stalk 3D printing primary material obtained in step (vi) at -100 degrees C, adding compound B, mixing, placing mixed mixture into screw extruder, stirring at a speed of 108 revolution/minute at 185 degrees C, and squeezing silk to obtain Printed consumptive material, where the preparation method of compound B comprises (viia) preparing concentration of 25Be' and adjusting cassava starch slurry pH to 3.5, (viib) adding dimethyl phosphite having concentration of 6.5%, N-ethyl-5-methyl-2-(1-methylethyl)cyclohexanecarboxamide, aluminum titanium composite coupling agent and vanadium pentoxide into starch slurry obtained in step (viia), stirring at a speed of 100 revolution/minute at 50 degrees C, and carrying out cross-linking grafting reaction for 3.2 hours to obtain slurry b, (viic) adding potassium hydroxide into slurry b obtained in step (viib), adjusting pH value to 9.5, then adding epichlorohydrin, carbodiimide, azobisisobutyric acid(ethylene glycol)acrylate, dibutyl phthalate, methyl methacrylate-butadiene-styrene terpolymer, modified rosin resin, boric acid and ammonium dihydrogen phosphate, stirring at a speed of 100 revolution/minute at 58 degrees C, then carrying out cross-linking reaction for 2.1 hours to obtain slurry c, and (viid) adding stearic acid into slurry c obtained in step (viic), adjusting pH to 8.7, heating at 75 degrees C, gelatinizing at 28 degrees C for 52 minutes, adding polydimethylsiloxane, and stirring at a speed of 110 revolution/minute for 11 minutes to obtain compound B.