A lamp powder that produces medium wave ultraviolet rays and its preparation methods and applications

An ultraviolet and lamp powder technology, applied in chemical instruments and methods, lighting and heating equipment, components of lighting devices, etc., can solve the problem of large light decay of fluorescent powder, shortened life of wave ultraviolet rays, and great hidden dangers to the environment and people. and other problems, to achieve the effect of high brightness, long service life and variable service life

Active Publication Date: 2019-08-06
吉林省宝庆生物医药科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production of calcium phosphate zinc thallium phosphor and powder coating and use on the inner wall of the lamp tube are relatively dangerous, which poses great hidden dangers to the environment and people. Moreover, the light decay of this kind of phosphor is relatively large, and the life of the lamp tube emits medium-wave ultraviolet rays. shorten

Method used

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  • A lamp powder that produces medium wave ultraviolet rays and its preparation methods and applications

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Experimental program
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Effect test

Embodiment 1

[0061] This embodiment relates to a preparation method of lamp powder that produces medium-wave ultraviolet rays. The preparation method is based on strontium carbonate (SrCO 3 ), strontium chloride (SrCl 2 ), magnesium oxide (MgO), boric acid (H 3 BO 3 ), aluminum oxide (Al 2 O3), lead oxide (PbO) and rare earth metal oxides are mixed and fired at a high temperature in solid phase to obtain the lamp powder for producing medium-wave ultraviolet rays.

[0062] The rare earth metal oxides include one of actinide oxides and lanthanide oxides.

[0063] The lanthanide oxides include lanthanum oxide (La 2 o 3 ), gadolinium oxide (Gd 2 o 3 ) and samarium oxide (Sm 2 o 3 ).

[0064] The concrete steps of described preparation method preparation are:

[0065] Step 1, raw material processing: raw material strontium carbonate (SrCO 3 ), strontium chloride (SrCl 2 ), magnesium oxide (MgO), boric acid (H 3 BO 3 ), aluminum oxide (Al 2 o 3 ), any one of lead oxide (PbO) and...

Embodiment 2

[0075] The preparation method of the present embodiment is basically the same as that of Example 1, except that:

[0076] The raw materials to be weighed are: 4.2g (0.03mol) of strontium carbonate, 1.7g (0.01mol) of strontium chloride, 0.4g (0.01mol) of magnesium oxide, 12.4g (0.2mol) of boric acid, and 0.515g of aluminum oxide (0.005mol), lead oxide 0.335g (0.002mol) and lanthanum oxide 0.40g (0.001mol).

[0077] The chemical formula of the prepared lamp powder producing medium-wave ultraviolet rays is: (B 2 o 3 ) 2 ·(Al 2 o 3 ) 0.1 (Mg,Sr)O 0.87 Cl 0.4 :0.04Pb 2+ 0.02La 3+ .

[0078] The spectrum of the prepared lamp powder measured by an ultraviolet analyzer is a band spectrum, the peak value is λ=297nm, and the measured relative intensity is stronger than that of phosphate activated by calcium zinc thallium and gadolinium.

Embodiment 3

[0080] The preparation method of the present embodiment is basically the same as that of Example 1, except that:

[0081] The raw materials to be weighed are: 8.86g (0.06mol) of strontium carbonate, 3.2g (0.02mol) of strontium chloride, 0.8g (0.02mol) of magnesium oxide, 24.8g (0.4mol) of boric acid, and 1.03g of aluminum oxide (0.01mol), lead oxide 0.67g (0.003mol) and lanthanum oxide 0.81g (0.005mol).

[0082] The chemical formula of the prepared lamp powder producing medium-wave ultraviolet rays is: (B 2 o 3 ) 2 ·(Al 2 o 3 ) 0.1 (Mg,Sr)O 0.905 Cl 0.2 :0.03Pb 2+ 0.05La 3+ .

[0083] The spectrum of the prepared lamp powder measured by an ultraviolet analyzer is a band spectrum, the peak value is λ=297nm, and the measured relative intensity is stronger than that of phosphate activated by calcium zinc thallium and gadolinium.

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Abstract

The invention belongs to the field of inorganic luminescent materials, and particularly relates to lamp powder generating ultraviolet rays B as well as a preparation method and application thereof. The lamp powder is alkaline-earth metal boron chloro aluminate, the lamp powder is applied to a lamp tube, under the excitation of 254 nm ultraviolet rays, the lamp powder can generate the ultraviolet rays B with the wavelength of 297 nm to illuminate the skin, so that subcutaneous 7-dehydrogenated cholesterol can be converted into vitamin D3, the metabolism of calcium and phosphorus of the human body can be promoted, and an effect for preventing children rickets and adult osteoporosis can be realized. In addition, the lamp powder does not contain harmful substances to the human body and is highin safety.

Description

technical field [0001] The invention belongs to the field of inorganic luminescent materials, and in particular relates to a lamp powder for producing medium-wave ultraviolet rays and a preparation method and application thereof. Background technique [0002] It is well known that 7-dehydrocholesterol in the human body can be converted into vitamin D under the irradiation of medium-wave ultraviolet rays. 3 , can promote the metabolism of calcium and phosphorus in the human body, and calcify the bone matrix. In the prior art, general lighting fluorescent lamps (fluorescent lamps) have no fluorescent powder that can emit medium-wave ultraviolet rays in the tube wall, and the tube wall coating of fluorescent lamp tubes for health care purposes already has calcium zinc thallium phosphate (Ca 0.94 Zn 0.06 ) 3 TL 0.03 (PO 4 ) 2 (Chinese Patent No. 96116266.X), or gadolinium-activated phosphate (Ca.12n.Gd) 3 (PO 4 ) 2.14 (Chinese Patent No. 022465014), used to emit medium-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K11/64F21V9/40
CPCC09K11/7712C09K11/7764F21V9/40
Inventor 孙淑兰艾长山
Owner 吉林省宝庆生物医药科技有限公司
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