Method for preparing high-luminous-intensity water-resistant phosphor powder
A technology of luminous intensity and water resistance, which is applied in the direction of luminescent materials, chemical instruments and methods, etc., can solve the problems of low luminous intensity and poor water resistance, and achieve the effect of improving luminous intensity, good transmission performance and good stability
Inactive Publication Date: 2018-05-18
蒋春霞
0 Cites 1 Cited by
AI-Extracted Technical Summary
Problems solved by technology
View more
Abstract
The invention discloses a method for preparing high-luminous-intensity water-resistant phosphor powder, and belongs to the technical field of preparation of phosphor powder. A hydration reaction is performed on sodium silicate and silica so as to obtain silicon hydroxide, and furthermore silica has X-ray amorphism, so that the luminous intensity of the phosphor powder is increased; magnesium fluoride is obtained by mixing magnesium carbonate with hydrofluoric acid for a reaction, and since magnesium fluoride has good transmission of visible light and vacuum ultraviolet light, good stability ismaintained during preparation of magnesium fluoride so that the luminous intensity of the phosphor powder can be furthermore improved. According to the method, ammonium metavanadate and ethylenediamine tetraacetic acid disodium salt are utilized to conduct joint modification on a yttrium nitrate solution and an europium nitrate solution, and polyvinylpyrrolidone and sodium lauryl sulfate are added continuously, wherein polyvinylpyrrolidone belongs to water-soluble polymer organic matter, so that the defect center on the surface can be reduced; furthermore, the density of the phosphor powder can be improved through matrix particles, and the luminous intensity of the phosphor powder can be further improved; a broad application prospect is provided.
Application Domain
Luminescent compositions
Technology Topic
Water soluble polymersWater soluble +27
Examples
- Experimental program(3)
- Comparison scheme(1)
- Effect test(1)
Example Embodiment
Example Embodiment
Example Embodiment
PUM


Description & Claims & Application Information
We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.
Similar technology patents
Degradable plastic film composite material of butyl acrylate grafted modified starch and preparation method thereof
Owner:安徽省阜阳市国泰彩印包装有限公司
Terminal-equipped electric wire and manufacturing method for same
Owner:AUTONETWORKS TECH LTD +2
Synthesis method of polyamide polyamine resin
Owner:佛山市帕里达新材料科技有限公司
Classification and recommendation of technical efficacy words
- High luminous intensity
- Improve water resistance
Backlight source lamp group
Owner:K TRONICS (SUZHOU) TECH CO LTD +1
Metal particle doped indium salt-based phosphor and preparation method thereof
Owner:OCEANS KING LIGHTING SCI&TECH CO LTD +1
Difunctional light conversion master batches and preparation method thereof
Owner:FOSHAN ONMILLION NANO MATERIALS
Dual-functionalized graphene oxide composite material as well as preparation method and application thereof
Owner:UNIV OF SCI & TECH OF CHINA