Preparation method of quantum dot fluorescent microspheres, quantum dot fluorescent microspheres and application

• Main Authors: LIN LEPING, PANG DAIWEN, DONG BORAN, ZHU XIAOBO, ZHU DONGLIANG
• Format: Patent
• Language: Chinese; English
• Published: 18.04.2023
• Subjects: ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; DYES; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MEASURING; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NANOTECHNOLOGY; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PERFORMING OPERATIONS; PHYSICS; POLISHES; SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; TESTING; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING

The invention discloses a preparation method of quantum dot fluorescent microspheres, the quantum dot fluorescent microspheres and application, and relates to the technical field of quantum dots. Mixing a monomer, a cross-linking agent, an initiator, quantum dots and a molecular weight regulator to obtain an oil phase mixture; emulsifying and dispersing the oil phase mixture, mixing with the swelled seed microsphere mixed solution for swelling, and then heating for polymerization; wherein the monomer and the seed microsphere have the same structural unit or derivatives thereof; the molecular weight regulator is selected from at least one of mercaptan and thioether. Thiol and/or thioether is added into an oil phase mixture to serve as a molecular weight regulator, a proper amount of water phase polymerization inhibitor is introduced to regulate the reaction rate, the rates of quantum dots and monomers/oligomers entering the microspheres are controlled to be equal, more quantum dots are embedded in the microsph