A kind of preparation method of superhydrophobic self-cleaning fluorescent coating

A fluorescent coating, super-hydrophobic technology, applied in coatings, luminescent coatings, antifouling/underwater coatings, etc., can solve the problems of uneven light emission, instability, uneven coordination of rare earth, etc. The effect of reducing dosage and uniform particle size

Active Publication Date: 2020-07-14
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for preparing a superhydrophobic self-cleaning fluorescent coating, which solves the problems of uneven rare earth coordination, uneven luminescence, phase separation, and instability; and the coating is easy to prepare, which is beneficial to industrial production

Method used

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  • A kind of preparation method of superhydrophobic self-cleaning fluorescent coating
  • A kind of preparation method of superhydrophobic self-cleaning fluorescent coating
  • A kind of preparation method of superhydrophobic self-cleaning fluorescent coating

Examples

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Embodiment 1

[0029] Add 13g of divinylbenzene dropwise to a solution containing 0.3g of sodium dodecylsulfonate, 0.8g of cetyl alcohol, and 80mL of deionized water to form a pre-emulsion. Next, add 5mL aqueous solution containing 0.05g potassium persulfate, and react for 8h; dropwise add 1g divinylbenzene, 1g acrylic acid, 6g perfluorooctanoic acid 2-hydroxy-3-methacryloyloxypropyl ester, 0.25g dodeca Sodium alkyl sulfonate, 5g cyclohexanone, monomer solution composed of 20mL water and 30mL aqueous solution composed of 0.02g potassium persulfate were added dropwise and reacted at 70°C for 4 hours to obtain a core-shell emulsion with an average particle size of 1.1um . Centrifuge the prepared core-shell emulsion and disperse it in ethanol solution, add o-phenanthroline, benzoylacetone and europium nitrate to the system for coordination 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 soli...

Embodiment 2

[0031] Add 12g of divinylbenzene dropwise to a solution containing 0.6g of sodium lauryl sulfate, 0.36g of cetyl alcohol, and 96mL of deionized water to form a pre-emulsion. , add 5mL aqueous solution containing 0.04g ammonium persulfate, react for 7h; dropwise add 2g divinylbenzene, 2g 4-vinylbenzoic acid, 6g perfluoro-n-propyl vinyl ether, 0.5g dodecyl Monomer solution consisting of sodium sulfate, 6g acetone, 25mL water and 35mL aqueous solution consisting of 0.05g potassium persulfate were added dropwise and reacted at 75°C for 3h to obtain a core-shell emulsion with an average particle size of 900m. Centrifuge the prepared core-shell emulsion and disperse it in the acetone solution, add 8-hydroxyquinoline, caproyl acetone and terbium nitrate to the system, wherein carboxyl particles: 8-hydroxyquinoline: caproyl acetone: terbium nitrate The amount ratio is 1:2:2:1; the suspension with a solid content of 0.008g / mL after coordination is brushed on a glass slide to obtain a h...

Embodiment 3

[0033]Add 14g of divinylbenzene dropwise to a solution containing 0.14g of potassium dodecylsulfonate, 1.4g of cetyl alcohol, and 75mL of deionized water to form a pre-emulsion. Next, add 10mL aqueous solution containing 0.09g potassium persulfate, and react for 7 hours; dropwise add 5g divinylbenzene, 1g methacrylic acid, 2g 2-perfluoropropoxy perfluoropropyl trifluorovinyl ether, 0.2g potassium dodecylsulfonate, 2g methyl butanone, monomer solution composed of 25mL water and 30mL aqueous solution composed of 0.02g sodium persulfate, while adding dropwise, react at 70°C for 5h to obtain the average particle size 1.3um core-shell emulsion. After the prepared core-shell emulsion is filtered, it is dispersed in a tetrahydrofuran solution, and acetylacetone and europium chloride are added to the system for coordination to obtain a suspension, wherein the ratio of carboxyl particles: acetylacetone: europium chloride is 1: 3:1, the suspension with a solid content of 0.007g / mL afte...

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Abstract

The invention provides a preparation method for a superhydrophobic self-cleaning fluorescent coating, and belongs to the technical field of superhydrophobic fluorescent coatings. The preparation method comprises the following steps: preparing fluorine-containing carboxyl polymer particles; and dispersing the polymer particles into an organic solvent, performing coordination with a small-molecularligand and a rare earth compound, and performing coating to obtain the superhydrophobic fluorescent coating. Microspheres prepared by the method provided by the invention have a particle size of aboutmicrometers and can provide sufficient roughness, a fluorine-containing monomer ensures the surfaces of the microspheres to have low surface energy, and the prepared superhydrophobic fluorescent coating has a contact angle which can reach 150 degrees or more, can be applied to different substrates, and has a self-cleaning function; and the method used in the invention is simple and economic, andcan be applied to industrial production.

Description

technical field [0001] The invention relates to the technical field of superhydrophobic fluorescent coatings, in particular to a preparation method of superhydrophobic self-cleaning fluorescent coatings. Background technique [0002] Superhydrophobic coating has a high contact angle and a very low rolling angle, so it has attracted people's attention. At present, superhydrophobic coating has a wide range of applications in anti-icing, anti-corrosion, oil-water separation and so on. [0003] Rare earth polymer fluorescent materials have received great attention because the rare earth ions have unique optical, electrical, magnetic and other characteristics, and the polymer has good processing and matrix stability. In recent years, there have been endless reports on rare earth polymer materials, but rare earth compounds are inorganic and unstable when exposed to water. Therefore, if the rare earth polymer material is superhydrophobic, the quenching of rare earth ions can be avo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F257/00C08F220/24C08F216/14C08F212/36C08F214/18C09D5/22C09D5/16
CPCC08F257/00C09D5/1662C09D5/1681C09D5/22C09D151/003C08F220/24C08F216/1408C08F212/36C08F214/186C08F214/184
Inventor 王忠刚叶维维周雪王泽锋骆新然
Owner DALIAN UNIV OF TECH
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