▎ 摘　　要

NOVELTY - Oxidized graphene monomer comprises glycolic acid, graphene oxide, and vinyltrimethoxysilane in a mass ratio of 15-25:3-5:36-61. USE - The monomer is useful for polycarboxylic acid water reducing agent, and building materials e.g. cement, and in municipal, viaduct, road and other building industry. ADVANTAGE - The monomer: has good defoaming performance and water reducing performance, and good workability; has good dispersibility and working performance; does not reduce the carboxy content due to esterification; has excellent water reducing and de-oaming effect, low biological toxicity, and good environmental protection. The method is simple. DETAILED DESCRIPTION - INDEPENDENT CLAIMs are also included for: (1) Preparing oxidized graphene monomer. (2) High and easy polycarboxylic acid water reducing agent comprising polyether monomer, function monomer, unsaturated acid and oxidized graphene monomer, and polyether monomer. (3) Preparing high and easy polycarboxylic acid water reducing agent.