Coating

A paint and oil-based paint technology, applied in the paint field, can solve the problems of short afterglow time, shortage of luminous materials, weak luminous intensity, etc., and achieve the effects of long afterglow time, enhanced afterglow brightness and time, and high afterglow brightness

Inactive Publication Date: 2018-09-14
王小琴
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  • Abstract
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Problems solved by technology

[0006] There is a shortage of yellow long-lasting luminescent materials in the prior art. In order to overcome the problems of weak luminous intensity and short afterglow time of the yellow long-lasting luminescent materials in the prior art, the present invention provides a novel yellow long-lasting phosphor and its The preparation method, the phosphor has the advantages of high afterglow brightness and long afterglow time, and can be used in fields such as safety signs, emergency route signs, traffic signs and night displays

Method used

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Embodiment 1

[0123] A yellow long-lasting phosphor with a chemical composition of Sr 4.94 SiB 2 o 10 : 0.04Eu 2+ , 0.02Dy 3+ , with high-purity SrCO 3 , SiO 2 、H 3 BO 3 、Eu 2 o 3 and Dy 2 o 3 As a raw material, according to the chemical composition general formula Sr 4.94 SiB 2 o 10 : 0.04Eu 2+ ,0.02Dy 3+ The ratio of each element in the formula, accurately weigh each raw material; put each raw material into an agate mortar at the same time, and mix them evenly by manual grinding, and the grinding time of each sample is 20min; the above-mentioned uniformly mixed raw materials Put it into a corundum crucible and sinter it in a high-temperature tube furnace. The sintering temperature is 1200°C, the sintering time is 4 hours, the heating rate is 10°C / min, and the sintering atmosphere is 5%H 2 / 95%N 2 After the sintering is completed, it is cooled to room temperature with the furnace to obtain a sintered body; the obtained sintered body is ground and pulverized to obtain the y...

Embodiment 2

[0125] A yellow long-lasting phosphor with a chemical composition of Sr 4.96 SiB 2 o 10 : 0.02Eu 2+ , 0.02Gd 3+ , with high-purity SrCO 3 , SiO 2 、H 3 BO 3 、Eu 2 o 3 and Gd 2 o 3 As a raw material, according to the chemical composition general formula Sr 4.96 SiB 2 o 10 : 0.02Eu 2+ ,0.02Gd 3+ The ratio of each element in the formula, accurately weigh each raw material; put each raw material into an agate mortar at the same time, and mix them evenly by manual grinding, and the grinding time of each sample is 30min; the above-mentioned uniformly mixed raw materials Put it into a corundum crucible and sinter it in a high-temperature tube furnace. The sintering temperature is 1400°C, the sintering time is 6 hours, the heating rate is 10°C / min, and the sintering atmosphere is 5%H 2 / 95%N 2 After the sintering is completed, it is cooled to room temperature with the furnace to obtain a sintered body; the obtained sintered body is ground and pulverized to obtain the y...

Embodiment 3

[0127] A yellow long-lasting phosphor with a chemical composition of Sr 4.98 SiB 2 o 10 : 0.01Eu 2+ , 0.01La 3+ , with high-purity SrCO 3 , SiO 2 、H 3 BO 3 、Eu 2 o 3 and La 2 o 3 As a raw material, according to the chemical composition general formula Sr 4.98 SiB 2 o 10 : 0.01Eu 2+ ,0.01La 3+ The ratio of each element in the formula, accurately weigh each raw material; put each raw material into an agate mortar at the same time, and mix them evenly by manual grinding, and the grinding time of each sample is 25min; the above-mentioned uniformly mixed raw materials Put it into a corundum crucible and sinter it in a high-temperature tube furnace, the sintering temperature is 1000°C, the sintering time is 5 hours, the heating rate is 10°C / min, and the sintering atmosphere is 5%H 2 / 95%N 2 After the sintering is completed, it is cooled to room temperature with the furnace to obtain a sintered body; the obtained sintered body is ground and pulverized to obtain the y...

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Abstract

The invention belongs to the technical field of coatings, and discloses a coating. The coating is prepared from conventional coating ingredients and yellow long-afterglow fluorescent powder. The yellow long-afterglow fluorescent powder is evenly distributed in the conventional coating ingredients, and the adding amount of the yellow long-afterglow fluorescent powder is 1% to 30%; the chemical-composition general formula of the yellow long-afterglow fluorescent powder is Sr5-x-ySiB2O10:xEu2+,yRe3+, wherein Re is a combination of one or more of Dy, Gd and La, x is larger than or equal to 0.01 and smaller than or equal to 0.05, and y is larger than or equal to 0.01 and smaller than or equal to 0.10. The long-afterglow coating is used for coating various marks, and the effect of safe displaying or night indicating can be achieved.

Description

[0001] This application is a divisional application, the filing date of the original application: 2017-11-02, the original application number: 2017110616032, [0002] Invention title of the original application: a yellow long-lasting phosphor and its preparation method. technical field [0003] The invention belongs to the technical field of coatings. Background technique [0004] Long afterglow luminescence is a very important luminescence phenomenon. It is a phenomenon that the sample still keeps luminescence within minutes or even hours after the light is stopped, which has attracted more and more attention. At first, long afterglow luminescent materials were mainly used in safety signs, emergency route signs, traffic signs and night displays, etc., and then these materials were also used in optical storage media, radiation detection and structural damage sensors, etc., and more and more Fields such as solar energy utilization and in vivo bioimaging can also use long-las...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D177/00C09D123/28C09D175/04C09D4/02C09D5/22C09D11/037C09D11/102C09D11/50
CPCB62K9/00C08J5/18C08J2367/02C08K3/38C09D4/00C09D5/22C09D11/037C09D11/102C09D11/50C09D123/28C09D175/04C09D177/00C09K11/7797
Inventor 杨道救
Owner 王小琴
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