▎ 摘　　要

NOVELTY - Sizing agent comprises 5-20 wt.% non-ionic emulsifier, 30-45 wt.% epoxy resin, 0.2-2 wt.% graphene oxide and 40-60 wt.% aqueous dispersion medium. USE - Sizing agent. ADVANTAGE - The sizing agent is eco-friendly and economical. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing sizing agent, which involves: (A) taking epoxy resin; (B) adding polyethylene glycol and organic solvent in epoxy resin; (C) refluxing the mixture for 5 hours; (D) adding alkyl phenol ethoxylates in the mixture;stirring the mixture for 2 hours; (E) adding epoxy resin in the mixture; (F) heating the mixture at 50-60 degrees C; (G) adding aqueous dispersion medium in the heated mixture; and (H) stirring the mixture.