Green and energy-saving fluorescent powder/glass compound luminous material and preparation method thereof

A technology of luminescent material and fluorescent powder, applied in the field of green energy-saving fluorescent powder/glass composite luminescent material and its preparation, to achieve the effects of reducing pollution, high transparency, and promoting the development of new energy and energy saving.

Inactive Publication Date: 2012-05-23
EAST CHINA UNIV OF SCI & TECH
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Problems solved by technology

[0003] CN1305967A provides a manufacturing method of rare-earth yellow-green long-lasting luminescent glass. In the method, strontium oxide, aluminum oxide and boron trioxide are selected as the glass substrate, and cosolvent and rare earth are added. After grinding and mixing uniformly, constant tem

Method used

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  • Green and energy-saving fluorescent powder/glass compound luminous material and preparation method thereof
  • Green and energy-saving fluorescent powder/glass compound luminous material and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0019] The glass matrix material is 29P 2 o 5 -42ZnO-9SO 3 -18Na 2 Phosphate glass of O-2SnO (mol%), the glass has the characteristics of low melting temperature and softening temperature, and the DSC curve is as follows figure 1 shown. After the glass is melted, it is ground to 200-300 mesh.

[0020] Phosphor powder adopts commercially available SrAl 2 o 4 :Eu 2+ , Dy 3+ Long persistence phosphor. The mass ratio of phosphor powder to glass powder is 5:95.

[0021] After mixing the above materials evenly, press them into a powder block under the pressure of a hydraulic press, melt at 700°C, anneal at 320°C, and then cool to room temperature with the furnace to obtain the sample of Example 1. Under the irradiation of 365nm ultraviolet light, the composite material emits strong yellow-green light with long afterglow characteristics, and its luminous intensity is basically the same as that of long afterglow phosphors with the same quality. figure 2 for SrAl 2 o 4 :E...

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Abstract

The invention discloses a green and energy-saving fluorescent powder/glass compound luminous material and a preparation method thereof. The green and energy-saving fluorescent powder/glass compound luminous material is long-afterglow luminous glass formed by mixing and fusing long-afterglow fluorescent powder and phosphate glass powder, and has the characteristics of no lead, no radioactivity, low melting point, energy saving, weather fastness, low-temperature molding, stability of lighting, long afterglow and the like. The preparation method comprises the following steps of: (a) preparing low-melting-point phosphate matrix glass; (b) powdering the matrix glass and mixing the matrix glass and long-afterglow fluorescent powder with a certain mass percentage; (c) blocking the powder; and (d) melting the powdered blocks at a certain temperature, annealing and cooling. The compound luminous material can emit light with a certain color after being irradiated by visible light or ultraviolet light, so that the luminous performance of the long-afterglow fluorescent powder is retained. The compound luminous material serving as a novel material can be widely used in the fields of buildings, energy saving, airspace, emergency lighting, night displaying, artistic handicrafts and the like.

Description

technical field [0001] The invention belongs to luminescent materials, in particular to a green energy-saving fluorescent powder / glass composite luminescent material and a preparation method thereof. Background technique [0002] Long afterglow luminescent material has long afterglow characteristics, it can store part of the energy after absorbing the energy of sunlight or light, and then slowly release the stored energy in the form of visible light. Utilizing this feature can be used as a lighting source at night and in the dark, and has important application value in the fields of construction, transportation and national defense. For example, it can be used as night signs for emergency exits of buildings, dangerous areas, evacuation passages, and important parts of factories, as well as night indicator and concealed lighting for dashboards of fighter jets and simple night sights for firearms. In addition, the production of luminous fibers and various luminous handicrafts...

Claims

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Application Information

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IPC IPC(8): C03C4/12
Inventor 曾惠丹吴玄顺杨一凡袁双龙达宁杨云霞陈国荣
Owner EAST CHINA UNIV OF SCI & TECH
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