▎ 摘　　要

NOVELTY - Preparing sterilization type coating precursor comprises carboxylation of silica-encapsulated metal nanoparticles graphene nanoribbons (GNRs) doped silicon dioxide, carboxylated GNRs doped silicon dioxide were obtained at 20℃-40℃, modifying carboxylated GNRs doped SiO2 modified with ureidopyrimidinone mono-terminated polydimethylsiloxane UPyPDMS to obtain GNRs doped SiO2-PDMS-UPy, mixing GNRs doped SiO2-PDMS-UPy with ureidopyrimidinone double-terminated polydimethylsiloxane UPy-PDMS-UPy to obtain a sterilization type coating precursor, the mass ratio of GNRs@SiO2-PDMS-UPy to UPy-PDMSUPy is 1:1-1:30. USE - The method is useful for preparing sterilizing type coating precursor, which is useful in the technical field of coating material, preferably a sterilizing-type nano composite coating for pressing. ADVANTAGE - The sterilizing type coating precursor has excellent sterilizing efficiency, and provides coating with excellent coating performance. The coating precursor is prepared by simple and effective sterilizing method. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: a sterilizing type coating precursor; a press-ready-to-use nano-composite coating; and a sterilizing method.