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Tracking reagent and preparation method thereof

A technology of reagents and phosphors, applied in chemical instruments and methods, luminescent materials, etc., can solve the problems of poor adhesion and poor luminous effect, and achieve the effect of easy particle size, easy change, and guaranteed tracking effect

Pending Publication Date: 2022-03-01
重庆盾银科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a tracking reagent and its preparation method to solve the existing problems of poor luminous effect and poor adhesion

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The invention is a tracking reagent. The raw materials and percentages required for the synthesis of the tracking reagent are 50% of fluorescent powder, 20% of sodium-based montmorillonite, 15% of iron powder and 15% of diamond powder.

[0026] Further, the phosphor is A 3 B 1-x f 6:x Cr 3+ , where A contains Li, Na, K, Rb, Cs, NH 4 Or a combination thereof, B includes Al, Ga or a combination thereof, and 0<x≦1, the phosphor can excite infrared rays when irradiated by infrared rays, which is convenient for tracking.

[0027] Further, the phosphor is an excitatory phosphor, which is excited by an infrared light source with a wavelength of 400-600 nanometers to emit infrared rays, and the infrared rays have an emission wavelength of 720-950 nanometers, and the infrared rays have a peak, and the peak of the peak The wavelength is 730-760 nanometers.

[0028] Furthermore, the particle size of the iron powder is 80-129 mesh, the hardness of the iron powder is 62-64 degr...

Embodiment 2

[0031] A preparation method of tracking reagent, the specific preparation method of tracking reagent is:

[0032] S1: Stir, melt the sodium-based montmorillonite, then add phosphor powder, iron powder and diamond powder in sequence, and use a mixer to turn the mixture into a slurry;

[0033] S2: Heating, put the slurry-like fluorescent powder mixture into the heating box and bake it into a block, stop the heating furnace manually every 2-3 hours, stir the mixture evenly with a mixer and reheat it, and wait until the solvent is completely dry. can be taken out;

[0034] S3: crushing, putting the prepared mixed powder block into a crushing machine to crush and screen.

[0035] Furthermore, the centrifugal rate of the mixer in S1 is 1000L / h, the working time of the mixer is 30min, and the gravity component ratio of Na-based montmorillonite and water is 1:2.

[0036] Further, the centrifugal rate of the mixer in S2 is 1500-2000L / h, the stirring time is 30-50min, and the heating ...

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Abstract

The invention discloses a tracking reagent and a preparation method thereof, and relates to the field of tracking reagent preparation. The tracking reagent is prepared from the following raw materials in percentage by weight: 50% of fluorescent powder; 20% of sodium-based montmorillonite; the fluorescent powder is A3B1-xF6: xCr < 3 + >, A comprises Li, Na, K, Rb, Cs, NH4 or a combination thereof, B comprises Al, Ga or a combination thereof, and 0 lt; x is smaller than or equal to 1, the fluorescent powder can excite infrared rays when irradiated by the infrared rays, tracking is facilitated, the fluorescent powder is exciting fluorescent powder and is excited by an infrared ray light source with the wavelength of 400-600 nanometers to emit the infrared rays, the emission wavelength of the infrared rays is 720-950 nanometers, the infrared rays have a wave crest, and the peak wavelength of the wave crest is 730-760 nanometers. The prepared tracking reagent is excited through infrared rays during use, the light emitting effect of the tracking reagent can be improved, the tracking reagent can work for a long time, and the tracking effect is guaranteed.

Description

technical field [0001] The invention belongs to the field of tracking reagent preparation, in particular to a tracking reagent and a preparation method thereof. Background technique [0002] Phosphor powder, commonly known as luminous powder, is usually divided into two types: photo-induced energy storage luminous powder and radioactive luminous powder. It can be stored and released slowly in the form of fluorescence after stopping the light irradiation, so at night or in the dark, you can still see the light, lasting for several hours to more than ten hours, through fluorescent powder and some ingredients The mixture can be made into a tracking reagent to reveal some difficult-to-observe traces for criminal investigation. [0003] Existing tracking reagents often use self-excited fluorescent powder when used, which has poor luminous effect and cannot be displayed for a long time. Therefore, we propose a tracking reagent and its preparation method. Contents of the inventi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/02C09K11/68
CPCC09K11/025C09K11/68C09K11/685
Inventor 赖德渝刘彦谢涛彭红薇袁有
Owner 重庆盾银科技有限公司