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High-hydrophobicity high temperature-resistant fluorescent coating preparation method

A fluorescent coating and high hydrophobicity technology, applied in coatings, luminous coatings, etc., can solve problems such as instability, uneven luminescence, and uneven coordination of rare earths, and achieve reduced dosage, uniform luminescence, and uniform particle size Effect

Inactive Publication Date: 2018-08-03
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a simple, highly hydrophobic and high-temperature-resistant rare earth fluorescent coating preparation method that can be used in industrial production to solve the problems of uneven rare earth coordination, uneven luminescence, phase separation, and instability

Method used

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Embodiment 1

[0027] Add 14g of divinylbenzene dropwise to a solution containing 0.15g of sodium dodecylsulfonate, 0.45g of cetyl alcohol, and 60mL of deionized water to form a pre-emulsion. Next, add 5mL aqueous solution containing 0.03g potassium persulfate and react for 10h; dropwise add monomer solution consisting of 7g divinylbenzene, 1g acrylic acid, 0.2g sodium dodecylsulfonate, 20mL water and 0.018g A 30mL aqueous solution composed of sodium persulfate was added dropwise and reacted at 70°C for 4h to obtain a core-shell emulsion with an average particle size of 1um. Centrifuge the prepared core-shell emulsion and disperse it in ethanol solution, add o-phenanthroline, benzoylacetone and europium nitrate to the system and stir for 1 hour to obtain a suspension, wherein carboxyl particles: o-phenanthroline: benzoyl The ratio of acetone: europium chloride is 1:2:1:1; the suspension with a solid content of 0.05g / mL after coordination is spin-coated on a glass slide to obtain a highly hyd...

Embodiment 2

[0029] Add 12g of divinylbenzene dropwise to a solution containing 0.6g sodium lauryl sulfate, 0.6g hexadecane, and 96mL of deionized water to form a pre-emulsion, and after ultrasonication for 6min in an ice-water bath, at 70°C , add 5mL aqueous solution containing 0.04g potassium persulfate, react for 7h; add dropwise a monomer solution consisting of 7g divinylbenzene, 3g 4-vinylbenzoic acid, 0.25g sodium dodecyl sulfate, and 25mL water And 35mL of aqueous solution composed of 0.05g of potassium persulfate, while adding dropwise, react at 75°C for 3h to obtain a core-shell emulsion with an average particle size of 800m. Centrifuge the prepared core-shell emulsion and disperse it in the acetone solution, add 8-hydroxyquinoline, caproyl acetone and terbium nitrate to the system, stir for 3 hours, wherein carboxyl particles: 8-hydroxyquinoline: caproyl acetone: nitric acid The ratio of the amount of terbium to substance is 1:2:2:1; the suspension with a solid content of 0.008g / ...

Embodiment 3

[0031] Add 14g of divinylbenzene dropwise to a solution containing 0.4g of potassium dodecylsulfonate, 1g of cetyl alcohol, and 80mL of deionized water to form a pre-emulsion. , add 5mL aqueous solution containing 0.08g ammonium persulfate, after reacting for 7h; dropwise add monomer solution composed of 8g divinylbenzene, 5.2g methacrylic acid, 0.4g potassium dodecylsulfonate, 40mL water and A 30 mL aqueous solution composed of 0.04 g of potassium persulfate was added dropwise and reacted at 70° C. for 5 h to obtain a core-shell emulsion with an average particle size of 1.5 μm. Filter the prepared core-shell emulsion and disperse it in the tetrahydrofuran solution, add acetylacetone and europium chloride to the system, stir for 2 hours to obtain a suspension, in which the ratio of carboxyl particles: acetylacetone: europium chloride is 1 :3:1, the suspension with a solid content of 0.007g / mL after coordination was ultrasonicated for 5min, poured and coated on a glass slide to...

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Abstract

The invention provides a high-hydrophobicity high temperature-resistant fluorescent coating preparation method, which belongs to the technical field of a hydrophobic fluorescent coating. The preparation method comprises the following steps: dispersing polymeric microsphere in an organic solvent, performing coordination on the polymeric microsphere and a micromolecule ligand and a rare earth compound, and coating a matrix with a solution after coordination to obtain the high-hydrophobicity fluorescent coating. The coating takes microsphere as a unit for spot-light illumination, luminescence isuniform, and no phase-splitting problem is generated. The particle size of the polymeric microsphere is at a micron order, enough roughness can be provided, cracking cannot be generated on the coating, and the high hydrophobicity of the coating can be guaranteed. The preparation method has the advantages of simple process and economy, and can be used for industrial production.

Description

technical field [0001] The invention relates to the technical field of hydrophobic fluorescent coatings, in particular to a preparation method of highly hydrophobic and high-temperature-resistant fluorescent coatings. Background technique [0002] Rare earth polymer fluorescent materials have excellent properties and have many applications in industry, agriculture and daily life, for example: coating a solution containing rare earth compounds on devices to detect cracks or holes, coating them on industrial trays It is used in the theoretical analysis of heat transfer, and it is coated on the circuit to detect the temperature in the circuit; the polymer compound containing rare earth compound is prepared into a thin film to improve the yield of crops; the rare earth compound containing The polymer compound is prepared as electroluminescent material for flat panel display and so on. However, rare earth ions are highly hydrophilic and easily combine with water to cause quenchi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D151/00C09D5/22C08F257/00C08F212/36C08F220/06C08F212/14C08F8/42
Inventor 王忠刚叶维维周雪王泽锋骆新然
Owner DALIAN UNIV OF TECH
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