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Method for preparing super-hydrophobic self-lighting coating

A self-luminous coating and super-hydrophobic technology, which can be used in coatings, devices for coating liquids on surfaces, surface pretreatment, etc., can solve the problems that the preparation and performance of super-hydrophobic self-luminous coatings have not yet been reported in the literature. Achieve the effect of solving water decomposition or luminous intensity reduction, simple process and expanding application range

Inactive Publication Date: 2015-04-29
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the preparation and performance research of the superhydrophobic self-luminous coating involved in the present invention has not been reported in the literature.

Method used

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  • Method for preparing super-hydrophobic self-lighting coating
  • Method for preparing super-hydrophobic self-lighting coating
  • Method for preparing super-hydrophobic self-lighting coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Add 0.05g of a long-lasting luminescent body whose emission is blue (peak value is 456nm) to the mixture of 1g of PMMA high polymer monomer and initiator 2-hydroxyl-2-methyl-p-hydroxyethyl ether base phenylacetone (The ratio of monomer and initiator is 20:1), and add the cross-linking agent vinyltriethoxysilane (VTES) that mass content is 0.1%, keep stirring until the long afterglow luminous body and the monomer mix evenly, adopt The above mixture is dropped on a glass sheet by scraping method, and evenly coated with a coating machine, the coating speed is 99mm / s, and then irradiated with ultraviolet light in the wavelength range of 250-420nm for 1min, and the light intensity is 1mW, to obtain A 10 μm thick PMMA film doped with luminescent powder; then placed in a vacuum desiccator, dripping chlorosilane in an aqueous solution, and hydrolyzing and polycondensing chlorosilane to prepare a blue superhydrophobic luminescent coating, and water droplets on the coating The st...

Embodiment 2

[0032] Add 2.5g of a long-lasting luminescent body whose emission is green (peak value is 510nm) into a mixture of 25g of PA high molecular polymer monomer and aqueous azo initiator azobisisobutylamidine hydrochloride (monomer and initiator The ratio of the agent is 10:1), and the cross-linking agent phenolic resin with a mass content of 1% is added, and the stirring is continued until the long-lasting luminous body is mixed evenly. Uniform coating with a coating speed of 1mm / s, and then placed at 120°C for 1h to dry to obtain a 1000μm thick PA film doped with a long-lasting luminous body; through the self-assembly of perfluorooctyltrichloromethylsilane , On this basis, a green superhydrophobic coating was prepared, and the static contact angle of water droplets on the coating was 155°-157°. as attached figure 1 As shown, the self-luminous coating prepared by the above method has a water drop contact angle of 157° as measured by the static contact angle.

Embodiment 3

[0034] Add 3g of a long-lasting luminescent body that emits red light (peak at 780nm) into a mixture of 5g of PET monomer and initiator benzophenone (DP) (the ratio of monomer to initiator is 1:1), and add The cross-linking agent N, N'-methylenebisacrylamide with a mass content of 5%, and continuously stirred until the long-lasting luminous body is mixed evenly, and the above-mentioned mixture is dripped on the wood substrate by the spin coating method, and evenly mixed with a glue leveler. Spin coating, the spin coating speed is 1kr / min, and then irradiate with ultraviolet light in the wavelength range of 250-420nm for 5min, the light intensity is 2W, to obtain a PET film with a thickness of 100μm; then pass through the surface of octyltrimethoxysilane modification, successfully prepared a red super-hydrophobic surface, as shown in the attached figure 2 As shown, the self-luminous coating prepared by the above method has a water drop contact angle of 163° as measured by the ...

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Abstract

The invention provides a method for preparing a super-hydrophobic self-lighting coating. The method comprises the steps of 1, uniformly mixing a high-molecular polymer monomer, a cross-linking agent, an initiator and a long persistent phosphorescence material to obtain a mixture; 2, uniformly coating the mixture on the surface of a base material, and polymerizing to obtain the self-lighting coating; performing hydrophobization treatment for the prepared self-lighting coating to obtain the super-hydrophobic self-lighting coating. The method overcomes the shortages of the prior art, and solves the problem of decomposing in water or reduction of lighting intensity while expanding the application range of the long persistent phosphorescence material; the process of the method is simple, the preparation cost is saved, and the universality is high.

Description

technical field [0001] The invention relates to a method for preparing a superhydrophobic self-luminous coating by coating or modifying a long-lasting luminescent material, and belongs to the technical field of coatings. Background technique [0002] Long afterglow luminescent material is a "green" light source material, that is, it stores light radiation energy under the irradiation of natural light or artificial light source. When the light source is cut off, it can still release the stored energy in the form of visible light, showing bright and recognizable light. , is an ideal emergency light source. With the deepening of research in recent years, the afterglow time has also increased from a few seconds to more than ten hours. It has lighting function and can play the role of emergency indication. However, many long-lasting luminescent materials with excellent luminous performance are very sensitive to water, easy to decompose in humid air, weaken luminescence, and fina...

Claims

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Application Information

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IPC IPC(8): B05D5/06B05D3/10
Inventor 石小迪鲁希华
Owner DONGHUA UNIV
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