▎ 摘　　要

NOVELTY - An environmentally-friendly handheld electronic screen repair material comprises 1-2 pts. wt. graphene, 0.5-2 pts. wt. nano calcium carbonate, 0.5-5 pts. wt. ionic liquid mixture and 100 pts. wt. diluent. The ionic liquid includes mixture of (((but-3-en-1-yloxy)methoxy)methyl)trimethylphosphanium 4,6-bis(trifluoromethyl)-1H-1,3-benzodiazol-1-ide-based ionic liquid (I) and 3-isocyanato-1-pyridin-1-ide-based ionic liquid (II) in a weight ratio of 2-6:1. USE - Environmentally-friendly handheld electronic screen repair material is used in repairing of damaged smart phone screen (claimed). ADVANTAGE - The environmentally-friendly handheld electronic screen repair material has excellent transparency, piezoelectric property and mechanical property, and repairs damaged smart phone screen by quick process. DETAILED DESCRIPTION - An environmentally-friendly handheld electronic screen repair material comprises 1-2 pts. wt. graphene, 0.5-2 pts. wt. nano calcium carbonate, 0.5-5 pts. wt. ionic liquid mixture and 100 pts. wt. diluent. The ionic liquid includes mixture of (((but-3-en-1-yloxy)methoxy)methyl)trimethylphosphanium 4,6-bis(trifluoromethyl)-1H-1,3-benzodiazol-1-ide-based ionic liquid (I) and 3-isocyanato-1-pyridin-1-ide-based ionic liquid (II) in a weight ratio of 2-6:1. n=1-10.