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Nitrogen oxide fluorescent gel and preparation method thereof

A technology of nitrogen oxide and fluorescent glue, applied in chemical instruments and methods, luminescent materials, etc., can solve the problems that LED fluorescent glue does not have UV resistance and high temperature aging resistance, achieve excellent operability and ensure anti-attenuation , the effect of improving the service life

Inactive Publication Date: 2013-07-03
IRICO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the existing LED fluorescent glue does not have ultraviolet resistance and high temperature aging resistance, and to provide a nitrogen oxide fluorescent glue doped with a light stabilizer and a silicone resin adhesive, which helps to improve the performance of the LED lamp. UV resistance, and improve high temperature aging phenomenon

Method used

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  • Nitrogen oxide fluorescent gel and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Example 1 Add 24.8 grams of 4-vinylcyclohexyl 1,2 epoxides, 13.4 grams of polymethylphenylsiloxane, and 40 ml of xylene in a 300 ml three-necked flask equipped with a mechanical stirrer, a condensation bottle and a thermometer . The temperature of the system is raised to 70-80° C., and 5-8 ppm (based on the total weight of reactants) of chloroplatinic acid catalyst is added. After 1 hour of reaction, the temperature of the system was raised to 90 ° C, and the reaction was carried out for 5 hours. After the reaction was completed, the solvent and unreacted reactants were removed with a rotary evaporator, and 0.53 g Ph 2 Si(OH) 2 , 1.23g of aluminum acetylacetonate was placed in an oven at 100°C, and the catalyst was completely dissolved to obtain 36.5g of transparent silicone epoxy resin.

[0020] After the temperature was cooled to room temperature, 90.1 g of nitrogen oxide phosphor, 14.6 g of light stabilizer titanium dioxide, 0.438 g of hydroxydimethylsiloxane, and ...

Embodiment 2

[0021] Example 2 24.8 g of 4-vinylcyclohexyl 1,2 epoxy compound, 12 g of polymethylphenylsiloxane, and 40 ml of toluene were added to a 300 ml three-necked flask equipped with a mechanical stirrer, a condensation bottle and a thermometer. The temperature of the system is raised to 70-80° C., and 5-10 ppm (based on the total weight of reactants) of chloroplatinic acid catalyst is added. After 1 hour of reaction, the temperature of the system was raised to 90 ° C, and the reaction was carried out for 5 hours. After the reaction was completed, the solvent and unreacted reactants were removed with a rotary evaporator, and 0.53 g Ph 2 Si(OH) 2 , 0.53g of aluminum acetylacetonate was placed in an oven at 100°C, and the catalyst was completely dissolved to obtain a transparent silicone epoxy resin to obtain 35g of a transparent silicone epoxy resin.

[0022] After the temperature was cooled to room temperature, 122.5 g of nitrogen oxide phosphor, 12.25 g of light stabilizer titanium...

Embodiment 3

[0023] Example 3 In a 300ml three-necked flask equipped with a mechanical stirrer, a condensation bottle and a thermometer, 24.8g of bisphenol A (2,2-bis(4-hydroxyphenyl)propane) and tetramethyldihydrodisiloxane were added. Alkanes 15g, acetone 40ml. The temperature of the system is raised to 70-80° C., and 5-10 ppm (based on the total weight of reactants) chloroplatinic acid catalyst is added. After 1 hour of reaction, the temperature of the system was raised to 90 ° C, and the reaction was carried out for 5 hours. After the reaction was completed, the solvent and unreacted reactants were removed with a rotary evaporator, and 0.76 g Ph 2 Si(OH) 2 , 0.76g of aluminum acetylacetonate was placed in an oven at 100°C, and the catalyst was completely dissolved to obtain 37.8g of transparent silicone epoxy resin.

[0024] After the temperature was cooled to room temperature, 93.3 g of nitrogen oxide phosphor, 15.12 g of light stabilizer titanium dioxide, 0.45 g of hydroxydimethyls...

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Abstract

The invention relates to a nitrogen oxide fluorescent gel and a preparation method thereof. The nitrogen oxide fluorescent gel is prepared with the following components (by mass percentage): 60-71 percent of nitrogen oxide fluorescent powder, 20-30 percent of organosilicon epoxy resin, 7-12 percent of nano light stabilizer and 0.3-0.5 percent of hydroxyl dimethyl siloxane. The invention has the advantages that the composition of organosilicon resin and epoxy resin with ultraviolet resistance and high-temperature aging resistance is adopted, and since the excellent operability, optical transparency and mechanical properties of the epoxy resin is maintained, the composition is suitable for use as an optical material to prepare light-emitting or optical apparatuses, in particular as a fluorescent gel material of the LED. In addition, due to the addition of the light stabilizer, the composition can reflect or absorb ultraviolet light, and prevent the ultraviolet light from deeply penetrating into phosphor, thereby protecting the phosphor, further improving the service life of the phosphor, and ensuring the anti-fading property of the LED light.

Description

technical field [0001] The invention relates to a nitrogen oxide fluorescent glue and a preparation method thereof, which is particularly helpful for improving the ultraviolet resistance of LED lamps and improving high-temperature aging phenomena. Background technique [0002] Utilizing GaN-based LEDs to achieve general-purpose white lighting has become the main technical solution for solid-state lighting worldwide. To achieve the goal of general lighting, there are currently two routes: blue LED+Yttrium aluminum garnet YAG) phosphor and UV-LED+three-color phosphor. [0003] The combination of near-ultraviolet LED+RGB phosphor is getting more and more attention. This method is characterized by converting the near-ultraviolet light generated by the LED into three colors of red (R), green (G), and blue (B) Synthetic white light, which covers a wider range of white light than blue LED+YAG phosphor, and the principle of converting ultraviolet light into R, G, and B is the same ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K11/02
Inventor 赵莉
Owner IRICO