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Coating having both luminous and fluorescent properties, and preparation method thereof

A fluorescent performance and coating technology, which is applied in the direction of luminescent coatings, polyurea/polyurethane coatings, coatings, etc., can solve the problems of short luminous life, etc., and achieve good adhesion, environmental friendliness, and obvious luminous effects

Active Publication Date: 2019-09-13
重庆南方漆业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, carbon dot fluorescent materials also have their limitations, such as short luminous lifetime

Method used

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  • Coating having both luminous and fluorescent properties, and preparation method thereof
  • Coating having both luminous and fluorescent properties, and preparation method thereof
  • Coating having both luminous and fluorescent properties, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A kind of coating with luminous and fluorescent properties, by weight percentage, the coating comprises the following components: 3% of carbon dot fluorescent material, 3% of organic long-lasting luminescent material, 27% of organosilicon modified water-based polyurethane emulsion, pigment ( Hollow ceramic nanoparticles 4.5%, silica airgel 4.5%, graphene airgel 4.5%, sericite 4.5%, polypyrrole 4.5%, zinc vanadate microspheres 4.5%) 27%, filler (barium sulfate) 9%, wetting and dispersing agent (Hydropalat 5040) 0.9%, defoamer (BYK-028) 0.9%, leveling agent (BYK-420) 0.45%, thickener (sodium carboxymethylcellulose) 1.25%, Coalescing aid (TexanolOE-300) 3.0%, balance is water. The coating is prepared as follows:

[0032] (1) Put the 2,5-diaminopyridine aqueous solution with a mass fraction of 20% in the high-temperature-resistant polytetrafluoroethylene reactor liner, and then put it into the supporting iron reactor shell, hydrothermally treat it at 180 ° C for 5 hours, a...

Embodiment 2

[0038] A kind of coating with luminous and fluorescent properties, by weight percentage, the coating comprises the following components: 2% of carbon dot fluorescent material, 4.5% of organic long-lasting luminescent material, 45% of silicone modified water-based polyurethane emulsion, pigment ( Hollow ceramic nanoparticles 9%, silica airgel 6%, graphene airgel 4.5%, sericite 4.5%, polypyrrole 4%, zinc vanadate microspheres 8%) 36%, filler (barium sulfate 6 %, calcium carbonate 6%) 12%, wetting and dispersing agent (Dispersogen 4387) 0.5%, defoamer (EFKA-2526) 0.4%, leveling agent (BYK-428) 0.2%, thickener (hydroxyethyl Cellulose) 1.8%, coalescence aid (DOWANOL TPnB) 2%, balance is water. The coating is prepared as follows:

[0039] (1) Put the 2,5-diaminopyridine aqueous solution with a mass fraction of 25% in the high-temperature-resistant polytetrafluoroethylene reactor liner, then put it into the supporting iron reactor shell, hydrothermally treat it at 170 ° C for 8 hour...

Embodiment 3

[0045] A kind of coating with both luminous and fluorescent properties, by weight percentage, the coating comprises the following components: 1% of carbon dot fluorescent material, 1% of organic long-lasting luminescent material, 35% of silicone modified water-based polyurethane emulsion, pigment ( Hollow ceramic nanoparticles 9%, sericite 4.5%, zinc vanadate microspheres 4.5%) 18%, filler (barium sulfate 12%, calcium carbonate 6%) 18%, wetting and dispersing agent (Disperbyk-184) 0.2%, Defoamer (SurfynolDF-60) 0.2%, leveling agent (BYK-425) 0.1%, thickener (xanthan gum) 0.45%, film-forming aid (SER-AD FX 510) 1%, the balance is water. The coating is prepared as follows:

[0046] (1) Put the 2,5-diaminopyridine aqueous solution with a mass fraction of 15% in the high-temperature-resistant polytetrafluoroethylene reactor inner tank, and then put it into the supporting iron reactor shell, hydrothermally treat it at 190 ° C for 3 hours, and then Put the reaction solution into a...

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Abstract

The invention relates to a coating having both luminous and fluorescent properties, and a preparation method thereof, and belongs to the technical field of luminous coatings. The coating comprises 1-3% of a carbon dot dioxide fluorescent material, 1-4.5% of an organic long-afterglow luminous material, 27-45% of a silicone-modified waterborne polyurethane emulsion, 18-36% of a pigment, 9-18% of a filler, 0.2-0.9% of a wetting dispersant, 0.2-0.9% of a defoaming agent, 0.1-0.45% of a leveling agent, 0.45-1.8% of a thickener, 1.0-3.0% of a film forming aid, and the balance of water. The components constituting the coating are reasonably selected and the use amounts of all the components are controlled to ensure that the finally prepared coating has an obvious luminous phenomenon and a good adhesion. The coating has both fluorescent and luminous properties, is non-polluting and nontoxic, and is environmentally friendly, so the coating has broad application prospects in the fields of anti-counterfeiting, decoration and public transportation. In addition, the preparation method has the advantages of simple process, easiness in operation, low raw material cost, and suitableness for enlarged production.

Description

technical field [0001] The invention belongs to the technical field of luminous coatings, and in particular relates to a coating with both luminous and fluorescent properties and a preparation method thereof. Background technique [0002] In daily life and industrial production, fluorescent materials are widely used in traffic signals, safety signs, auto parts, decoration and other fields. Among them, because inorganic fluorescent substances often contain radioactive substances or heavy metal elements harmful to the human body, and their adhesion is poor, their application range is limited, while traditional organic fluorescent coatings also face problems such as high cost and unstable fluorescence. As a next-generation fluorescent material, carbon quantum dots (carbon dots) have many advantages such as abundant raw material sources, low synthesis cost, environmental friendliness, non-toxicity, good biocompatibility, and stable optical properties. However, carbon dot fluore...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D5/22C09D7/61C09D7/65
CPCC08K2201/014C09D5/22C09D175/04C09D7/61C09D7/65C09D7/70C08L79/04C08K13/04C08K5/18C08K5/5399C08K5/3432C08K7/26C08K7/24C08K3/34C08K7/18
Inventor 陈久存袁爽登刘畅
Owner 重庆南方漆业有限公司
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