▎ 摘　　要

NOVELTY - The method for preparing high strength load silver/titanium dioxide composite glass fiber, involves mixing silicon dioxide, boron trioxide, sodium oxide, aluminum oxide, calcium oxide and multi-walled carbon nanotubes to obtain glass fiber, immersing glass fiber in graphene dispersion solution, heating, removing glass fiber, immersing glass fiber in zinc oxide dispersion, removing glass fiber, adding titanium source to sulfuric acid solution, immersing glass fiber in obtained mixed solution, adjusting pH value using ammonia solution and drying to obtain final product. USE - Method for preparing high strength load silver/titanium dioxide composite glass fiber (claimed). ADVANTAGE - The method enables preparation of high strength load silver/titanium dioxide composite glass fiber with excellent mechanical properties, high strength, high toughness and excellent antibacterial properties, and is prepared by simple process at low cost. DETAILED DESCRIPTION - Method for preparing high strength load silver/titanium dioxide composite glass fiber, involves mixing 50-55 wt.% silicon dioxide, 10-15 wt.% boron trioxide, 5-10 wt.% sodium oxide, 10-15 wt.% aluminum oxide, 15-20 wt.% calcium oxide and 0.1-0.5 wt.% multi-walled carbon nanotubes, pulverizing, placing the pulverized material in 400 mL corundum crucible, melting using silicon molybdenum rod, maintaining feed temperature of 1370 degrees C and melt clarification temperature of 1450 plus minus 10 degrees C, calcining at 1200 degrees C, casting molding, annealing at 500 degrees C, heating at drawing temperature of 1050 degrees C to obtain glass fiber, pretreating glass fiber, weighing graphene quantum dots to prepare 0.1-1 mg/mL concentration of dispersion solution, adding water, acetone or dimethyl sulfoxide as solvent, ultrasonically stirring, adding 50-60 mL graphene quantum dot dispersion solution to 0.01-0.03 mol/L concentration of silver nitrate solution, heating at 45-60 degrees C, dripping 0.1-0.8 mol/L concentration of trisodium citrate, ultrasonically mixing for 60-120 minutes, dripping 10-20 mL graphene quantum dot dispersion solution, adding pretreated glass fibers, ultrasonically mixing for 30-60 minutes, removing the glass fiber, cleaning, drying, leaving still, weighing porous graphene to 0.2-0.8 mg/mL concentration of graphene dispersion solution, adding water, acetone or dimethyl sulfoxide as solvent, ultrasonically stirring, immersing the glass fiber in 80-100 mL graphene dispersion solution, ultrasonically stirring for 10 minutes, placing the obtained material in PTFE reactor, heating at 80-120 degrees C, insulating for 15-30 minutes, removing the glass fiber, cleaning, drying, weighing zinc oxide quantum dots to form 0.5-1 mg/mL concentration of dispersion, adding water as solvent, immersing the glass fiber in 80-100 mL zinc oxide dispersion for 30-60 minutes, removing the glass fiber, cleaning, drying, leaving still, adding 0.1-0.3 M titanium source to 1 M sulfuric acid solution, mixing evenly, immersing the glass fiber in obtained mixed solution, heating at 110 degrees C for 3-5 hours, adjusting pH value to 7 using concentrated ammonia solution, aging for 12 hours, cleaning and drying to obtain final product. The volume ratio of graphene quantum dot dispersion, silver nitrate solution and trisodium citrate is 3-4:2-3:1-2.