▎ 摘　　要

NOVELTY - Three-dimensional printing graphene oxide reinforced aluminum silicate polymer involves uniformly mixing and stirring concentrated sulfuric acid, potassium persulfate and phosphorus pentoxide, adding graphite, adding deionized water, and standing; filtering precipitate, washing using deionized water, drying, adding into low temperature concentrated sulfuric acid, uniformly dispersing, adding potassium permanganate, stirring, adding deionized water and hydrogen peroxide, and stirring; dissolving into deionized water, standing, cleaning using deionized water and hydrochloric acid, washing using deionized water, dialyzing washed product, and concentration calibrating; diluting with deionized water, mechanically stirring, ultrasonically processing, and evaporating water; mixing with sodium silicate powder, adding sodium hydroxide powder, mixing with metakaolin, and stirring; and extruding, and maintaining. USE - The method is used for three-dimensional printing graphene oxide reinforced aluminum silicate polymer. ADVANTAGE - The method solves product with low mechanical property and high additive content leads to poor mechanical properties of materials. DETAILED DESCRIPTION - Three-dimensional printing graphene oxide reinforced aluminum silicate polymer involves: (A) uniformly mixing and stirring 20-60 wt.% concentrated sulfuric acid, potassium persulfate and phosphorus pentoxide, adding graphite, keeping temperature at 45-90 degrees C for 1.5-4.5 hours, adding deionized water, and standing for 8-36 hours to obtain standing liquid; (B) pouring supernatant of standing liquid, filtering precipitate, washing using deionized water as washing liquid to neutral, drying to obtain oxidized graphite, adding into 20-60 wt.% low temperature concentrated sulfuric acid, uniformly dispersing, adding potassium permanganate, stirring for 1-6 hours, adding deionized water and 10-30 wt.% hydrogen peroxide, and stirring until the solution is bright yellow to obtain crude product; (C) dissolving crude product into deionized water, standing for 5-12 hours, cleaning using deionized water and 0.5-1 mol/L hydrochloric acid, washing using deionized water as washing liquid to neutral, placing washed product into dialysis bag for dialysis for 10-45 days to obtain graphene oxide solution, and concentration calibrating graphene oxide solution; (D) diluting with deionized water when the mass percentage of graphene oxide in graphene oxide solution is higher than 0.25-1%, mechanically stirring for 30-60 minutes at speed of 1000-2500 revolutions/minute (rpm), using probe ultrasound, ultrasonically processing for 30-240 minutes at ultrasonic power of 50-80% to obtain adjusted concentration graphene oxide solution, and evaporating water from graphene oxide solution when the mass percentage of graphene oxide in graphene oxide solution is less than 0.25-1% using rotary evaporation device at 40-80 degrees C to obtain adjusted concentration graphene oxide solution; (E) mixing with sodium silicate powder, stirring at 40-90 degrees C for 30-60 minutes at speed of 500-2500 rpm to obtain mixture of graphene oxide with sodium silicate, adding sodium hydroxide powder, stirring for 60-30 minutes at speed of 500-2500 rpm to obtain stirred mixture, mixing metakaolin and stirred mixture, and stirring to 18-20 degrees C for 10-20 minutes at speed of 500-2500 rpm to obtain three-dimensional printing slurry; and (F) filling in adhesive dispensing needle cylinder, removing heated print head of FDM3D printer, fixing dispensing needle cylinder on moving shaft of printer, connecting dispensing needle cylinder to dispenser, extruding at pressure of 5-80 Pai, three-dimensional printing at speed of 1-100 mm/second, printing layer thickness of 0.05-3 mm and printing plate temperature of 20-120 degrees C, putting printed product in sealed Petri Dishes, and maintaining at 18-40 degrees C for 2-30 days and humidity of 40-60%. The volume ratio of mass of potassium persulfate to concentrated sulfuric acid is 1 g:1-5 mL. The mass ratio of potassium persulfate to phosphorus pentoxide is 1:0.8-1.5. The mass ratio of potassium persulfate to graphite is 1:1-1.5. The volume ratio of mass of potassium persulfate to deionized water is 1 g:10-100 mL. The temperature of 20-60 wt.% low temperature concentrated sulfuric acid is - 10-0 degrees C. The volume ratio of oxidized graphite to low temperature concentrated sulfuric acid is 1 g:40-50 mL. The mass ratio of oxidized graphite to potassium permanganate is 1:5-12. The volume ratio of oxidized graphite to deionized water is 1 g:50-100 mL. The volume ratio of oxidized graphite to hydrogen peroxide is 1 g:10-20 mL. The volume ratio of crude product to deionized water is 1 g:50-100 mL. The mass percentage of graphene oxide in adjusted concentration graphene oxide solution is 0.25-1%. The sodium silicate powder is of formula NaOasterisknSiO2. The mass percentage of graphene oxide in three-dimensional printing slurry is 0.2-0.8%. The mass ratio of sodium silicate to metakaolin in three-dimensional printing slurry is 0.5-2:1. The mass ratio of sodium silicate to sodium hydroxide in three-dimensional printing slurry is 6-12:1. n=2.5-3.0.