▎ 摘　　要

NOVELTY - A graphene cement grinding aid comprises 10-20 wt.% triethanolamine, 10-20 wt.% diethyl monoisopropanolamine, 10-15 wt.% triisopropanolamine, 5-10 wt.% graphene, and 35-65 wt.% solvent. USE - Graphene cement grinding aid. ADVANTAGE - The aid improves cement grinding effect and improves mechanical performance of cement. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a preparation method of the cement grinding aid which comprises selecting graphene in solvent and ultrasonic dispersing for 20-50 minutes; water bath heating to 70-90 degrees C, dropping triethanolamine, reacting for 3 hours; centrifugal separating for, using deionized water to wash to neutral, and standing for 24 hours; and orderly adding diethanol mono isopropyl ethylenediamine and triisopropanolamine, stirring for 10-20 minutes, and standing for 24 hours to obtain cement grinding aid.