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Preparation method of strontium aluminate long-afterglow luminescent top coat

A technology of long-lasting luminescence and strontium aluminate, applied in luminescent coatings, coatings, polyester coatings, etc., can solve problems affecting the luminous effect of aluminate long-lasting luminescent materials, and achieve excellent quick-drying performance and excellent waterproof Effects, effects with long afterglow

Inactive Publication Date: 2020-04-03
句容市飞达箱包有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There are various methods of coating thin films, see the article "Synthesis, Luminescent Properties and Application Research of Strontium Aluminate Long Persistence Luminescent Materials", the coating of hydrophobic thin films of strontium aluminate long afterglow luminescent materials has been studied , yes, but in the coating process, there is inevitably an aqueous solution in the reaction system, which affects the luminous effect of the aluminate long-lasting luminescent material

Method used

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  • Preparation method of strontium aluminate long-afterglow luminescent top coat
  • Preparation method of strontium aluminate long-afterglow luminescent top coat
  • Preparation method of strontium aluminate long-afterglow luminescent top coat

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preparation example Construction

[0033] 2.1 Preparation of strontium aluminate luminescent powder

[0034] In terms of element mass, the mass ratio of Sr:Al:Eu:Dy:B is 1:1.9:0.3:0.05:0.05. Accurately weigh strontium carbonate, aluminum hydroxide, europium oxide, dysprosium oxide and boric acid. Dry aluminum hydroxide, europium oxide, dysprosium oxide and boric acid at 80°C, grind in a ball mill for 3 hours, and sinter at high temperature in the presence of graphite powder after grinding to obtain strontium aluminate luminescent powder.

[0035] 2.2 Preparation of filler

[0036] Preparation method: Add the strontium aluminate luminescent powder prepared in part 2.1, fumed silica, magnesium fluoride and titanium dioxide into a ball mill for ball milling. The ball milling time is 2 hours. The mixture after ball milling is mixed with barium sulfate and talcum powder. Mix and continue ball milling for 30 minutes to obtain filler.

[0037] Sample 1: The filler consists of the following components in parts by wei...

Embodiment 1

[0061] Example 1: 30 parts of alkyd resin, 10 parts of petroleum resin, 0.2 part of liquid bisphenol A epoxy resin, 1 part of silane coupling agent, 1 part of polyethylene wax, 1 part of aluminum stearate, 1 part of organic bentonite, 1 part of DP-100, 2 parts of DP-150, 5 parts of filler, 0.5 part of drier rare earth naphthenate, 0.5 part of anti-skinning agent methyl ethyl ketone oxime, 10 parts of diluent xylene.

Embodiment 2

[0062] Example 2: 40 parts of alkyd resin, 20 parts of petroleum resin, 1 part of liquid bisphenol A epoxy resin, 2 parts of silane coupling agent, 1 part of polyethylene wax, 1 part of aluminum stearate, 1 part of organic bentonite, 1.6 parts of DP-100, 3.2 parts of DP-150, 10 parts of filler, 3 parts of drier rare earth naphthenate, 2 parts of anti-skinning agent MEK and 20 parts of diluent xylene.

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Abstract

The invention discloses a preparation method of a strontium aluminate long-afterglow luminescent top coat. The preparation method comprises the following steps: (1) preparing strontium aluminate luminescent powder: drying strontium carbonate, aluminum hydroxide, europium oxide, dysprosium oxide and boric acid, and carrying out high-temperature sintering to obtain strontium aluminate luminescent powder; (2) treating the filler: carrying out ball milling on the filler obtained in the step (1) in a ball mill; (3) dispersing part of the raw materials at a rotating speed of 1500-2000 rmp for 25-30min, stirring, adding an anti-settling agent, continuously stirring for 10-15 min, then adding a silane coupling agent and 5-10 parts of the filler, adjusting the rotating speed, and continuously stirring for 20-30 min at a rotating speed of 2000-3000 rpm; and (4) adding the mixture obtained in the step (3) into a ball mill, continuously grinding until the particle size of the mixture is less than30 [mu]m, adding a drier, an anti-skinning agent and a diluent after the grinding is finished, and uniformly stirring to obtain the luminescent top coat. The luminescent top coat of the invention hasthe advantages of long afterglow time and no environmental pollution.

Description

technical field [0001] The invention relates to a preparation method of a top paint, in particular to a preparation method of a strontium aluminate long afterglow luminous top paint. Background technique [0002] Luminescent materials refer to material materials that can absorb energy in a certain way and convert it into light radiation (non-equilibrium radiation). The process of absorbing energy in a certain way inside the substance and converting it into light radiation (non-equilibrium radiation) is called luminescence. A substance that can continue to emit light is a promising material. [0003] Since Matsuzawa et al. synthesized SrAl co-doped with Dy in 1993 2 o 4 : Eu research found that the afterglow decay time is as long as 2000min, and then people have successively developed a series of rare earth activated aluminate long afterglow materials. The activator of aluminate long afterglow materials is mainly Eu. However, the water resistance of aluminates is not very...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/08C09D157/02C09D5/22
CPCC08L2205/035C09D5/22C09D167/08C08L57/02C08L63/00C08K5/098C08K3/346C08K13/02
Inventor 凌传春张艳
Owner 句容市飞达箱包有限公司