Preparation method and use method of water-induced room-temperature arbitrary plastic long afterglow material

Through the combination of polyvinylpyrrolidone, boric acid and color-discolored acid, a long afterglow material with effluent induced room temperature is prepared by microwave heating, which solves the problem of difficult processing of existing materials at room temperature, and realizes the high plasticity and long afterglow properties of the materials, expands its application field.

CN120192768APending Publication Date: 2025-06-24DALIAN UNIV OF TECH +1
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Patent Information

Application Number
CN202510366808.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-26
Publication Date
2025-06-24

AI Technical Summary

Technical Problem

Existing room temperature phosphorescence and long afterglow materials are difficult to reprocess and deep processing at room temperature, and the materials have a hard appearance, which limits their plasticity and application fields.

Method used

A long afterglow material with effluent induced room temperature is prepared by a combination of polyvinylpyrrolidone, boric acid and discoloration acid. After adding an appropriate amount of water, the weak interaction between the polymer chains is adjusted through the diffusion of water, so that the material exhibits tensile and toughness at room temperature and has any plasticity.

Benefits of technology

It realizes a material that changes shape at room temperature continuously, while retaining a long afterglow life and high phosphorescence quantum yield, improving the plasticity and processability of the material, and expanding its application potential.

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Abstract

The invention belongs to the technical field of preparation of phosphorescent nano materials, and discloses a preparation method and a use method of a water-induced room-temperature arbitrary plastic long afterglow material. The preparation method comprises the following steps: dissolving polyvinylpyrrolidone, boric acid and chromotropic acid in water, stirring until the materials are completely dissolved, reacting in a microwave oven, and cooling to room temperature to obtain the long-afterglow material. When a proper amount of water is added, the material is softened and has softness and stretchability, the shape of the material can be continuously changed at room temperature at will, and when the water adding amount is 10%, the material still has 3 s yellow green afterglow visible to naked eyes. And after dehydration again, long afterglow of 15 seconds can be recovered. After 10 times of water adding-drying cycle operation, the afterglow time is not attenuated, and the afterglow intensity is not weakened. The afterglow service life is 1030.52 ms, and the phosphorescence quantum yield is 41.5%. The room-temperature random plasticity fills up the disadvantage that long-afterglow and phosphorescent materials are not easy to process and shape in the later period, and the application scene of the long-afterglow and phosphorescent materials in practical application is greatly expanded.
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