▎ 摘　　要

NOVELTY - A superhydrophilic filter preparation method involves mixing mica with modified graphene oxide, obtaining graphene oxide modified mica particles, dissolving 10-20 pts. wt. phenolic epoxy resin and 5-10 pts. wt. polyacrylonitrile resin in 80-100 pts. wt. dimethylformamide, adding 10-15 pts. wt. graphene oxide modified mica particles, uniformly mixing, injecting the mixture into mold, performing non-solvent induced phase separation using gel bath comprising ethanol and water in a volume/volume ratio of 2:1-5:1 and drying at 60-80 degrees C. USE - Method for preparing superhydrophilic filter that is utilized for oil-water separation. ADVANTAGE - The method enables preparing superhydrophilic filter with excellent heat resisting property and high temperature resisting property, water contact angle close to 0 degrees and less energy consumption in a simple manner at large scale.