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Preparation method of light-emitting composite paint

A composite coating and composite material technology, applied in the field of preparation of luminescent composite coatings, can solve the problems of poor construction performance and storage stability of water-based luminescent coatings, loss of afterglow effect of luminous performance, poor luminous uniformity of water-based luminescent coatings, and the like, and achieve good economic benefits. , Improve the luminous intensity, the effect of uniform luminous

Inactive Publication Date: 2016-02-24
陈荣芳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the density and particle size of the fluorescent powder and the paint are inconsistent, which will cause precipitation and layering. The luminous uniformity of the water-based luminous paint is poor, resulting in poor construction performance and storage stability of the water-based luminous paint, and serious loss of luminous performance and / or afterglow effect.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0013] (3) The preparation method of nano-scale kaolin is as follows: ball mill 150g of kaolin ore at a speed of 1500r / min for 60min, then put it into 5L of deionized water, add 220g of potassium acetate and stir for 60min, filter and wash until the pH value is about 7, Then, after drying at 80°C, ball mill at 1200 rpm for 60 minutes, then adjust to 300W ultrasonic wave and perform ball milling at 1800 rpm for 1 hour to obtain kaolin powder with a particle size of 10-30nm.

[0014] (4) Y 0.9 VO 4 :Eu 3+ 0.04 ,Al 3+ 0.06 The preparation method of nano-phosphor powder is as follows: (a) 2.4mmolNa 3 VO 4 12H 2 O was dissolved in a mixed solution containing 10ml of ethylene glycol and 3ml of distilled water; (b) The above solution was stirred at a centrifugal speed of 300r / min and added dropwise with 2.7mmol of Y(NO 3 ) 3 ·6H 2 O,Eu(NO 3 ) 3 ,Al(NO 3 ) 3 (0.9:0.04:0.06) in 12ml of ethylene glycol solution, then stirred at a centrifugal speed of 500r / min for 5~10min u...

Embodiment 1

[0026] A preparation method of luminescent paint, which comprises the following steps:

[0027] (1) Preparation of graphene / red fluorescent powder composite material: add 1g graphene to 100ml deionized water, and disperse for 180min under 800kW ultrasonic vibration and 800r / min centrifugal speed to prepare graphene dispersion liquid; 25gY 0.9 VO 4 :Eu 3+ 0.04 ,Al 3+ 0.06 Add nano-phosphor powder into 500ml of deionized water, and disperse for 240 minutes under 1000kW ultrasonic vibration and 800r / min centrifugal speed stirring to prepare red phosphor dispersion liquid; slowly drop red phosphor powder into graphene dispersion liquid under 100kW ultrasonic The dispersion liquid was ultrasonicated for 60 minutes, then suction filtered and dried to obtain a graphene / red phosphor composite material;

[0028] (2) 6 parts of graphene / kaolin / SiO 2 Composite filler and 4 parts graphene / CaCO3 / SiO 2 The composite filler was dispersed in 15 parts of deionized water under 500KW ultr...

Embodiment 2

[0031] Based on the preparation method of Example 1, Y in step (1) 0.9 VO 4 :Eu 3+ 0.04 ,Al 3+ 0.06 The amount of nano-phosphor powder added was changed to 50g, and the rest remained unchanged to obtain a water-based luminous interior wall latex paint.

[0032] The dispersibility of the phosphor powder is very good, and there is no coagulation after 4 hours, and the workability, storage stability and luminous effect are good.

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Abstract

The invention discloses a preparation method of a light-emitting composite paint. The preparation method comprises the following steps: (1) preparing a graphene / long afterglow phosphor composite; and (2) dispersing 3-6 parts of graphene / kaolin / SiO2 composite material and 2-4 parts of a graphene / calcium carbonate / SiO2 composite into 15-20 parts of deionized water, processing for 90-120 minutes so as to form a solution A3, dispersing 1-5 parts of graphene / red-emit phosphor / SiO2 composite into 15-20 parts of deionized water, processing for 90-120 minutes so as to form a solution B3, dispersing 1-5 parts of graphene / long afterflow phosphor composite into 15-20 parts of deionized water, processing for 90-120 minutes so as to obtain a solution C1, respectively and slowly dropwise adding solutions B3 and C1 in the solution A3 until a mixed solution is formed under conditions of performing ultrasonic shaking at a frequency of 200-400KW and stirring at a centrifugal speed of 500-800r / min, adding 70-80 parts of film forming matter, and mixing and stirring uniformly, so as to obtain the light-emitting composite paint. The preparation method is capable of obviously improving the luminous intensity and luminous uniformity of a water-borne luminous paint, and further improving the dispersibility of phosphor in the paint and the construction performance and storage stability of the paint.

Description

technical field [0001] The invention relates to a preparation method of a luminescent composite paint. Background technique [0002] Water-based luminous paint is an environmentally friendly functional paint that uses water as a diluent, basically eliminates the presence of organic solvents, and contains rare earth long-lasting phosphors. It has the characteristics of safe production and construction, non-toxicity, and no odor. Rare earth long afterglow phosphors can absorb the excitation energy of sunlight or light, store part of the energy, and then slowly release the stored energy in the form of visible light, and can still emit visible light for a long time after the excitation is stopped. Applying it to water-based paint can endow the water-based paint with the special function of long afterglow luminescence, and is widely used in architectural decoration, transportation, military facilities, fire emergency, instrumentation and other fields. [0003] However, the densi...

Claims

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Application Information

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IPC IPC(8): C09D5/22C09D7/12
CPCC09D5/22C09D7/61C09D7/62
Inventor 陈荣芳
Owner 陈荣芳
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