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Method for preparing zinc sulfide aluminium: copper, europium and erbium overlength afterglow luminescent powder

A technology of zinc sulfide and luminescent powder, which is applied in chemical instruments and methods, luminescent materials, etc., can solve the problems of incomparable brightness and afterglow time, poor stability of ultraviolet radiation resistance, and inability to be widely used, so as to prolong afterglow time and improve Stability against ultraviolet radiation, effect of increasing ability to store light energy

Inactive Publication Date: 2010-06-16
潍坊大耀新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its main disadvantages are poor stability against ultraviolet radiation, easy blackening, low luminous brightness, and the initial brightness is 2500mcd / m 2 And afterglow time is short, about 400min
When used outdoors, it is easy to produce darkening and blackening when exposed to sunlight, making it unusable
Although the existing technology can improve the ability of anti-ultraviolet radiation after coating treatment, the brightness and afterglow time cannot be compared with aluminate luminescent materials.
[0004] The disadvantages of aluminate and silicate luminescent materials developed in the past ten years are poor water resistance and easy blackening when rubbed with metal. X The illuminance light can reach saturation after 10 minutes of light irradiation, slow light absorption and other shortcomings, so in practical applications, it is still not widely used

Method used

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  • Method for preparing zinc sulfide aluminium: copper, europium and erbium overlength afterglow luminescent powder
  • Method for preparing zinc sulfide aluminium: copper, europium and erbium overlength afterglow luminescent powder
  • Method for preparing zinc sulfide aluminium: copper, europium and erbium overlength afterglow luminescent powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] (1) Premix: 100kg of high-purity plasma crystal zinc sulfide powder with a concentration of 160g CuCl 2 CuCl / 1000ml water 2 Solution 1400ml, concentration 15g EuCl 3 EuCl / 1000ml water 3 Solution 300ml, concentration is 4g ErCl 3 ErCl / 1000ml water 3 Solution 65ml and concentration 60g EuCl 3 100ml of LiCl solution per 1000ml of water, after mixing evenly, transfer to a drying box, temperature control 115 ℃, dry for 8 hours, and make the mixture;

[0054] (2) Hammer mill: After the dried mixture is naturally cooled to room temperature, it is transferred to a hammer mill, and then Al with a purity of 99.0% is added. 2 o 3 19kg of SrCl with a purity of 99.0% 2 5kg and Mg with a purity of 99.0% (BO 2 ) 2 1kg, carry out hammer milling, after mixing evenly, make charge;

[0055] (3) Roasting: Transfer the uniformly mixed charge into a quartz crucible to cover and seal it, then put it into a high-temperature roasting furnace, the temperature is controlled at 1100°C, a...

Embodiment 2

[0069] (1) Premix: 100kg of high-purity plasma crystal zinc sulfide powder with a concentration of 80g CuCl 2 CuCl / 1000ml water 2 Solution 1200ml, concentration 3g EuCl 3 EuCl / 1000ml water 3 Solution 200ml, concentration 1g ErCl 3 ErCl / 1000ml water 3 30ml of the solution and 60ml of the LiCl solution with a concentration of 15g LiCl / 1000ml of water are mixed evenly, then transferred to a drying oven, the temperature is controlled at 120°C, and dried for 8 hours to obtain a mixture;

[0070] (2) Hammer mill: After the dried mixture is naturally cooled to room temperature, it is transferred to a hammer mill, and then Al with a purity of 99.0% is added. 2 o 3 15kg of SrCl with a purity of 99.0% 2 3kg and Mg with a purity of 99.0% (BO 2 ) 2 0.5kg, carry out hammer mill, after mixing evenly, make charge;

[0071] (3) Roasting: Transfer the uniformly mixed charge into a quartz crucible to cover and seal it, and then put it into a high-temperature roasting furnace with the t...

Embodiment 3

[0085] (1) Premix: 110kg of high-purity plasma crystal zinc sulfide powder with a concentration of 100g CuCl 2 CuCl / 1000ml water 2 Solution 1500ml, concentration 10g EuCl 3 EuCl / 1000ml water 3 Solution 150ml, concentration is 2g ErCl 3 ErCl / 1000ml water 3 20ml of the solution and 80ml of the LiCl solution with a concentration of 30g LiCl / 1000ml of water are mixed evenly, then transferred to a drying oven, controlled at a temperature of 118°C, and dried for 7 hours to obtain a mixture;

[0086] (2) Hammer mill: After the dried mixture is naturally cooled to room temperature, it is transferred to a hammer mill, and then Al with a purity of 99.0% is added. 2 o 3 10kg of SrCl with a purity of 99.0% 2 1kg and Mg with a purity of 99.0% (BO 2 ) 2 0.1kg, carry out hammer milling, after mixing evenly, make charge;

[0087] (3) Roasting: Transfer the evenly mixed charge into a quartz crucible to cover and seal it, and then put it into a high-temperature roasting furnace with th...

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Abstract

The invention relates to a method for preparing zinc sulfide aluminium: copper, europium and erbium overlength afterglow luminescent powder, belonging to the field of chemical technology. The method for preparing the zinc sulfide aluminium: copper, europium and erbium overlength afterglow luminescent powder has the advantages of high luminosity, long afterglow time, rapid speed of light sensitivity, stable chemical property, ultraviolet radiation resistance and being waterproof, is mainly used for preparing luminescent plastics, luminous paint, paint, printing ink, coloring of plastics, textile printing, brushing navigation and an aircraft instrument, and can be used as a road sign as well as a safety sign of fire protection equipment and an air defense path.

Description

technical field [0001] The invention relates to a preparation method of zinc aluminum sulfide: copper, europium and erbium ultra-long afterglow luminescent powder. Background technique [0002] At present, the existing long-lasting light-absorbing self-luminescent materials can be divided into two categories: sulfide long-lasting light-emitting materials and rare earth-activated aluminate and silicate-based long-lasting light-emitting materials. [0003] Existing sulfide long-lasting luminescent materials mainly include zinc sulfide, zinc cadmium sulfide, strontium sulfide, barium sulfide, calcium sulfide and the like. Its main disadvantages are poor stability against ultraviolet radiation, easy blackening, low luminous brightness, and the initial brightness is 2500mcd / m 2 And afterglow time is short, about 400min. When used outdoors, it is prone to darkening and blackening when exposed to sunlight, making it unusable. Although the existing technology can improve the abil...

Claims

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Application Information

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IPC IPC(8): C09K11/64
Inventor 王强
Owner 潍坊大耀新材料有限公司
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