▎ 摘　　要

NOVELTY - Preparing antioxidant stabilizer, comprises (i) adding diethyl terephthalate, ethylene glycol and polyethylene glycol into a reaction kettle, raising temperature, stirring, then adding carbon-based-4,4-diisopropylated-fatty alcohol-phosphate chelate, stirring, then adding polyamine compound, ethyl acetate, raising temperature, stopping stirring, cooling and collecting distillate, (ii) mixing graphene, 4,4'-dioctyldiphenylamine, cetyltrimethylammonium bromide and molybdenum dioxide, ball milling, oscillating, adding coupling agent and distillate, stirring, (iii) adding dispersant, solvent, emulsifier and epoxy resin into reaction kettle, raising temperature, stirring, then adding initiator and Tris buffer, adding dodecylamine, vacuum concentrating, using silica gel column chromatography, evaporating and spin drying, and (iv) adding obtained main antioxidant stabilizer, auxiliary antioxidant stabilizer and intermediate into reaction kettle, then adding solvent, stirring and cooling. USE - The antioxidant stabilizer is useful for lithium ion diaphragm pore-forming oil (claimed). ADVANTAGE - The method: modifies and improves the dispersibility of product; and solves the lack of anti-oxidation stability of the existing white oil used in the production of lithium ion diaphragm pore-forming oil and their chemical stability needs to be improved, the oxidation stability is insufficient after the white oil is further produced and the problem of oil performance changes will occur after long-term storage. DETAILED DESCRIPTION - Preparing antioxidant stabilizer, comprises (i) adding 1-5 pts. wt. diethyl terephthalate, 7-10 pts. wt. ethylene glycol, and 10-15 pts. wt. polyethylene glycol into a reaction kettle in sequence, raising the temperature to 60degrees Celsius at 5degrees Celsius/minute under the protection of nitrogen, stirring at 200-300 revolutions/minute for 30 minutes to form homogeneous mixture and then adding 30-45 pts. wt. carbon-based-4,4-diisopropylated-fatty alcohol-phosphate chelate, stirring for 3 hours, then adding 5-10 pts. wt. polyamine compound and 70-90 pts. wt. ethyl acetate, gradually raising the temperature to 100-120degrees Celsius at 5degrees Celsius/minute, stopping the stirring when the reflux phenomenon occurs and after the reflux reaction is maintained for greater than 3 hours, then gradually returning to room temperature and collecting the distillate for use, (ii) mixing 5-10 pts. wt. graphene, 10-25 pts. wt. 4,4'-dioctyldiphenylamine, 5-7 pts. wt. cetyltrimethylammonium bromide and 10-12 pts. wt. molybdenum dioxide, introducing into a ball mill, ball milling for greater than 1.5 hours, oscillating under ultrasound for dispersion, then adding 3-5 pts. wt. coupling agent and 1-2 pts. wt. distillate, raising the temperature to 35degrees Celsius and stirring slowly at a rate of 1 r/s for 30 minutes, (iii) adding 1-5 pts. wt. dispersant, 40-45 pts. wt. solvent, 3-7 pts. wt. emulsifier and 20-30 pts. wt. epoxy resin into the reaction kettle, raising the temperature to 90degrees Celsius at 5degrees Celsius/minute under the protection of nitrogen, stirring into a homogeneous mixture, then adding 1-3 pts. wt. initiator and 1 pt. wt. Tris buffer, stirring at 200-300 revolutions/minute for 2-3 hours, adding dropwise 3 pts. wt. dodecylamine, controlling the dropping speed to 1s/drop, then raising the temperature to 120degrees Celsius and refluxing the reaction for 72 hours, vacuum concentrating the reaction mixture at 120degrees Celsius to 1/5 of the original volume, then using silica gel column chromatography with a volume ratio of petroleum ether and ethyl acetate of 10:1, and evaporating and spin drying to obtain intermediate, and (iv) adding obtained 40-55 pts. wt. main antioxidant stabilizer, 15-20 pts. wt. auxiliary antioxidant stabilizer and 2-5 pts. wt. intermediate into the reaction kettle, then adding 70-90 pts. wt. solvent at a constant temperature of 120degrees Celsius under the protection of nitrogen, stirring at 100-200 revolutions/minute for 2-3 hours, cooling to 80-85 when brown-red solid is precipitated out, adding 10-20 pts. wt. deionized water to wash until the pH value is 6, then maintaining the temperature, aging for 1 hour, suction filtering while hot condition, washing the filter cake for two times with 5 pts. wt. deionized water, and drying in oven at 100degrees Celsius for greater than 8 hours to obtain final product.