Fluorescent adhesive based on aggregation-induced emission mechanism and preparation method and application thereof

The invention discloses a fluorescent adhesive based on an aggregation-induced emission mechanism and a preparation method and an application thereof. The fluorescent adhesive is prepared from the following components in percent by mass: 10-20% of epoxy resin, 25-40% of an acrylate monomer mixture, 0.1-1% of fluorescent organic small molecules, 0.5-1% of a silane coupling agent, 40-60% of a xyleneand butyl acetate mixed solvent and 10-20% of a curing agent. The preparation method comprises the following steps: first, heating and melting the epoxy resin and adding a part of solvent; then dropwise adding an acrylate prepolymer prepared from the acrylate monomer mixture, the fluorescent organic small molecules and the silane coupling agent at a uniform speed; heating and stirring the mixture; grafting the acrylate monomer, the organic small molecules and the silane coupling agent to the epoxy resin through free radical polymerization; then supplementing the epoxy resin with residual solvent and melamine-formalde