▎ 摘　　要

NOVELTY - A graphene double-layer optical fiber coating comprises inner coating and outer coating. The inner coating comprises 10-30 pts. wt. unsaturated polyester, 50-80 pts. wt. polyurethane acrylate, 1-5 pts. wt. toughening agent, 0.1-2 pts. wt. photoinitiator, 0.1-2 pts. wt. hardening agent, and 1-5 pts. wt. modified graphene. The outer coating comprises 10-30 pts. wt. fluorine-containing acrylate, 40-60 pts. wt. polyester acrylate, 0.1-2 pts. wt. photoinitiator, 1-5 pts. wt. modified graphene, and 1-5 pts. wt. rare earth salt. USE - Graphene double-layer optical fiber coating (claimed). DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of optical fiber coating, which involves (1) mixing unsaturated polyester and polyurethane acrylate at room temperature, adding toughening agent, photoinitiator, hardening agent and modified graphene, stirring to obtain inner layer coating, leaving still, (2) mixing fluorine-containing acrylate and polyester acrylate at room temperature, stirring, adding photoinitiator, rare earth salt and modified graphene, stirring to obtain outer coating, and leaving still; and #use of optical fiber coating, which involves applying inner coating, curing, coating outer coating, and curing.