A kind of preparation method and application of hybrid fluorescent paint based on cuprous iodide

The technology of cuprous iodide and fluorescent paint is applied in the field of fluorescent paint, which can solve the problems of uneven luminescent particles, difficult regulation of performance, uneven luminescence, etc., and achieves the effects of simple film forming process, low cost and simple preparation method.

Active Publication Date: 2021-12-21
SUN YAT SEN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this kind of physical mixing has various problems such as uneven luminescent particles and easy sedimentation, which lead to uneven and unstable luminescence, and its optical properties mainly come from the phosphor itself, and its performance is not easy to control.
However, there is no report on the development of multifunctional fluorescent coating materials with stable luminescent properties.

Method used

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  • A kind of preparation method and application of hybrid fluorescent paint based on cuprous iodide
  • A kind of preparation method and application of hybrid fluorescent paint based on cuprous iodide
  • A kind of preparation method and application of hybrid fluorescent paint based on cuprous iodide

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Effect test

Embodiment 1

[0032] Embodiment 1 A kind of preparation method of hybrid fluorescent paint based on cuprous iodide

[0033] (1) Cuprous iodide silane precursor Cu 4 I 4 -Synthesis of dpes: To a suspension of CuI (0.5 g, 2.62 mmol) in 10 mL of dichloromethane at room temperature was added 2-(diphenylphosphino)ethyltriethoxysilane—a phosphine ligand L (1g, 2.66mmol), after the mixed solution was magnetically stirred at a speed of 400r / min at room temperature for 2h, the mixture was filtered, and after the solvent evaporated, a colorless oil with a high viscosity was obtained, i.e. cuprous iodide silane precursors. Yield = 77% (1.16 g, 0.5 mmol). The precursor emits orange light under UV excitation.

[0034] (2) Preparation of hybrid fluorescent coatings by sol-gel method: at room temperature, 1.16g Cu 4 I 4 -dpes precursor mixed with 60g phenyltriethoxysilane (molar ratio is 2×10 -3 : 1), add 60mL of solvent N,N-dimethylformamide (DMF), 7mL of HCl (hydrochloric acid) at pH 2.5, stir ma...

Embodiment 2

[0036] Embodiment 2 A kind of preparation method of hybrid fluorescent paint based on cuprous iodide

[0037] (1) Cuprous iodide silane precursor Cu 4 I 4 -Synthesis of dpes: To a suspension of CuI (0.1 g, 0.53 mmol) in 10 mL of dichloromethane at room temperature was added 2-(diphenylphosphino)ethyltriethoxysilane—a phosphine ligand L (0.2g, 0.53mmol), after the mixed solution was stirred at room temperature for 2h, the mixture was filtered, and after the solvent evaporated, a colorless oily substance with a high viscosity was obtained, that is, a cuprous iodide silane precursor. Yield = 83% (0.25 g, 0.11 mmol). The precursor emits orange light under UV excitation.

[0038] (2) Preparation of hybrid fluorescent coatings by sol-gel method: at room temperature, with 0.25g Cu 4 I 4 -dpes precursor mixed with 13g phenyltriethoxysilane (molar ratio is 2×10 -3 : 1), add 13mL of solvent N,N-dimethylformamide (DMF), 1.5mL of HCl at pH2.5, stir for 5h, and wait for the solvent to ...

Embodiment 3

[0040] Embodiment 3 A kind of preparation method of hybrid fluorescent paint based on cuprous iodide

[0041] (1) Cuprous iodide silane precursor Cu 4 I 4 -Synthesis of dpes: To a suspension of CuI (0.05 g, 0.26 mmol) in 10 mL of dichloromethane at room temperature was added 2-(diphenylphosphino)ethyltriethoxysilane—a phosphine ligand L (0.1g, 0.26mmol), after the mixed solution was stirred at room temperature for 2h, the mixture was filtered, and after the solvent evaporated, a colorless oily substance with high viscosity was obtained, that is, a cuprous iodide silane precursor. Yield = 81% (0.122 g, 0.05 mmol). The precursor emits orange light under UV excitation.

[0042] (2) Preparation of hybrid fluorescent coatings by sol-gel method: at room temperature, with 0.122g Cu 4 I 4 -dpes precursor mixed with 6.3g phenyltriethoxysilane (mole ratio is 2×10 -3 : 1), add 6.3mL of solvent N,N-dimethylformamide (DMF), 0.7mL of HCl with pH2.5, stir for 5h, and wait for the solve...

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Abstract

The invention belongs to the technical field of fluorescent coatings, and in particular relates to a method for preparing a cuprous iodide-based hybrid fluorescent coating and its application. The invention combines cuprous iodide-based luminescent clusters into the hybrid coating material through chemical bonds In this paper, an organic-inorganic hybrid functional coating based on cuprous iodide clusters with stable luminescent properties was synthesized. The prepared hybrid fluorescent coating has many advantages such as simple preparation method and film-forming process, low cost, stable fluorescent performance, and large-scale production, and can realize corrosion protection function, and can be applied by spin coating or scraping coating. For decorative coatings, it can also be applied to anti-counterfeiting and other fields through printing technology. The invention not only has important scientific research significance, but also has commercial potential and broad development prospects.

Description

technical field [0001] The invention belongs to the technical field of fluorescent paint, and in particular relates to a preparation method and application of a cuprous iodide-based hybrid fluorescent paint. Background technique [0002] The organic-inorganic hybrid coating material is mainly prepared by the sol-gel method. The alkoxy compounds of silicon or other elements are hydrolyzed to form fine inorganic particles with hydroxyl groups. The particle size of these fine particles is between 1-100nm. Suspended in a colloidal state in a solution, it is called a sol. The hydroxyl group of the sol can chemically react with the organic functional groups that are compatible with it in the same solution under appropriate conditions to form chemical polymerization and cross-linking to form organic-inorganic hybrid nano-coating materials. In such a hybrid coating material, the inorganic component can obtain good hardness, wear resistance, weather resistance, etc.; while the organ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D5/22C09D5/08C09D183/08
CPCC09D5/22C09D5/08C09D183/08C08K3/16
Inventor 刘威童话黎海波
Owner SUN YAT SEN UNIV
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