▎ 摘　　要

NOVELTY - A water-soluble carbon fiber sizing agent comprises 50-95 parts mass water-soluble sulfone aldehyde resin, 0-5 parts mass dispersing agent, 0-1 part mass graphene, 0-4 parts mass additives and 0-50 parts mass deionized water. USE - Water-soluble carbon fiber sizing agent (claimed). ADVANTAGE - The water-soluble carbon fiber sizing agent does not add emulsifier, ensures excellent stability, excellent smoothness and crosslinking effect, and significantly improves abrasion resistance, heat and humidity resistance and mechanical performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a preparation of water-soluble carbon fiber sizing agent, which involves adding water-soluble sulfone aldehyde resin to reaction kettle, stirring, sequentially adding dispersing agent, graphene, additives and water, stirring the mixture for 30-60 minutes, filtering and discharging to obtain water-soluble carbon fiber sizing agent.