Method for preparing high-temperature resistant fluorescent glass for LED

A fluorescent glass, high temperature resistant technology, used in glass manufacturing equipment, glass molding, manufacturing tools, etc., can solve the problem of heat can not be effectively dissipated, and achieve good chemical stability, excellent electrical insulation, and large specific surface. Effect

Inactive Publication Date: 2019-12-31
吴俊楠
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention: Aiming at the problem that the heat generated by the existing fluorescent glass cannot be effectively dissipated, a preparation method of high temperature resistant fluorescent glass for LED is provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0033]Then in parts by weight, weigh 10 parts of aluminum sulfate, 16 parts of urea, 2 parts of sodium dodecylbenzenesulfonate, 4 parts of polyethylene glycol, 120 parts of deionized water, add aluminum sulfate and urea to 1 / 2 weight parts of deionized water, stirring at 160r / min rotation speed for 10min at room temperature to obtain an aluminum ion solution, adding sodium dodecylbenzenesulfonate and polyethylene glycol into the remaining 1 / 2 weight part of deionized water, Stir at a speed of 200 r / min for 10 min at room temperature to obtain an additive solution, add the additive aqueous solution dropwise to the aluminum ion solution at a rate of 10 mL / min, and stir at a speed of 250 r / min at room temperature for 2 hours to obtain a mixed solution, pour the mixed solution into In the autoclave, hydrothermally react at 160°C and 10MPa for 4h, then cool at room temperature to obtain the reactant, wash the reactant three times with deionized water, and dry it in an oven at 80°C ...

example 2

[0037] In parts by weight, weigh 15 parts of aluminum sulfate, 24 parts of urea, 3 parts of sodium dodecylbenzenesulfonate, 6 parts of polyethylene glycol, and 180 parts of deionized water, add aluminum sulfate and urea to 1 / 2 weight parts of deionized water, stirring at 180r / min for 15min at room temperature to obtain an aluminum ion solution, adding sodium dodecylbenzenesulfonate and polyethylene glycol to the remaining 1 / 2 weight part of deionized water, Stir at 220r / min for 15min at room temperature to obtain an additive solution, add the additive aqueous solution dropwise to the aluminum ion solution at a rate of 15mL / min, and stir at 275r / min for 3h at room temperature to obtain a mixed solution, pour the mixed solution into In the autoclave, the hydrothermal reaction was carried out at 180°C and 15MPa for 6h, and then cooled at room temperature to obtain the reactant. The reactant was washed 4 times with deionized water and dried in an oven at 90°C for 1.5h to obtain bo...

example 3

[0041] Then in parts by weight, weigh 20 parts of aluminum sulfate, 32 parts of urea, 4 parts of sodium dodecylbenzenesulfonate, 8 parts of polyethylene glycol, and 240 parts of deionized water, add aluminum sulfate and urea to 1 / 2 weight parts of deionized water, stirring at 200r / min rotation speed for 20min at room temperature to obtain an aluminum ion solution, adding sodium dodecylbenzenesulfonate and polyethylene glycol to the remaining 1 / 2 weight part of deionized water, Stir at a speed of 240r / min for 20min at room temperature to obtain an additive solution, add the aqueous additive solution dropwise to the aluminum ion solution at a rate of 20mL / min, and stir at a speed of 300r / min at room temperature for 4h to obtain a mixed solution, pour the mixed solution into In the autoclave, the hydrothermal reaction was carried out at 200°C and 20MPa for 8h, and then cooled at room temperature to obtain the reactant. The reactant was washed with deionized water for 5 times, and...

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Abstract

The invention relates to a method for preparing high-temperature resistant fluorescent glass for an LED and belongs to the technical field of LEDs. The high-temperature resistant fluorescent glass forthe LED is prepared through taking quartz glass as a substrate and adding modified alumina whiskers. According to the method, the quartz glass has the characteristics of isotropy, metastability, no definite melting point and continuity and reversibility of property change; and the quartz glass has an extremely low coefficient of thermal expansion, high temperature resistance, excellent chemical stability and excellent electrical insulating performance, alumina whiskers are a highly heat-conductive material, modified alumina whiskers can be effectively dispersed inside the fluorescent glass and can effectively fill up voids and improve thermal conductivity, and thus, the heat resistance of the fluorescent glass is improved.

Description

technical field [0001] The invention relates to a method for preparing high-temperature-resistant fluorescent glass for LEDs, belonging to the technical field of LEDs. Background technique [0002] In recent years, researchers have conducted a lot of research on the preparation, physical properties, and luminous properties of various series of phosphors for LEDs. The technology has been relatively mature, but there are still many problems in practical applications. First of all, the color quality of the light emitted by phosphor-coated single-chip LEDs is unsatisfactory, with high color temperature (greater than 5000K) and low color rendering index (Ra<85). It is caused by the lack of radiation in the red part of the light. Secondly, there is the problem of uneven white light color, such as "color circle" and "color spot", which are caused by the unreasonable phosphor coating process. Thirdly, the epoxy resin used to encapsulate the lamp body has a small thermal conduct...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C4/12C03C3/095C03C1/02C03B19/06
CPCC03B19/06C03C1/02C03C3/095C03C4/12
Inventor 吴俊楠欧阳萍萍洪明祈欧阳承郎
Owner 吴俊楠
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