▎ 摘　　要

NOVELTY - A light emitting diode encapsulation material preparing method involves adding graphene oxide into water, adding anhydrous ethanol, ultrasonically dispersing, adding silane coupling agent KH-560, and dispersing, followed by adding tetrahydrofuran, polymethyltriethoxysilane, oxalic acid and modified graphene oxide in a three-necked flask, heating, adding E-44 epoxy resin to a three-necked flask, stirring and cooling. The reactant is added into methylnadic anhydride and stirred to obtain mixture. The mixture is added into 2,4,6-tris (dimethylaminomethyl) phenol, stirred and mixed. USE - Method for preparing a light emitting diode encapsulation material. ADVANTAGE - The method enables preparing the light emitting diode encapsulation material with better mechanical and impact resistance and high temperature resistance. DETAILED DESCRIPTION - A light emitting diode encapsulation material preparing method involves method involves adding 3-5 g graphene oxide into 500-800 mL deionized water, and adding 300-500 mL anhydrous ethanol, ultrasonically dispersing at 200-300 W power for 20-30 minutes, dispersing, adding 5-8 g silane coupling agent KH-560, ultrasonically dispersing for 1-2 h, dispersing at 4000-5000 rpm rotating speed and centrifugal separation to obtain precipitate. The precipitate is washed with deionized water for 3-5 times to obtain washed precipitate. The washed precipitate is added into deionized water at a mass ratio of 1:20, ultrasonically dispersed at 180-250 W power for 30-40 minutes, added with 15-25 g hydrazine hydrate to continue ultrasonic treatment at 60-70 degrees C for 3-5 hours after ultrasonically centrifuging to obtain precipitate. The precipitate is washed with deionized water to neutral, placed in an oven and dried at 100-120 degrees C for 5-7 hours to obtain modified graphene oxide, followed by adding 80-85 g tetrahydrofuran, 6-8 g polymethyltriethoxysilane, 2-3 g oxalic acid and 2-4 g the modified graphene oxide in a 500 mL three-necked flask, heating the mixture at 70-80 degrees C, adding 55-60 mL E-44 epoxy resin dropwise to the three-necked flask, completely adding the mixture over 60-70 minutes, adding 1-3 g dibutyltin dilaurate and 40-60 mL deionized water, heating at 100-110 degrees C for 5-6 hours, finishing the reaction, reducing the temperature at 80-90 degrees C, vacuumizing to vacuum degree of three-necked flask of about 10-15 Pa, stirring and reacting for 40-60 minutes, stirring and cooling to room temperature to obtain the reactant, adding the reactant into 1-3 g methylnadic anhydride and stirring for 5-10 minutes to obtain mixture. The mixture is added into 0.3-0.5 g 2,4,6-tris (dimethylaminomethyl) phenol, stirred and mixed for 30-40 minutes to obtain finished product.