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A kind of halogen-free, heavy-atom-free room temperature phosphorescent material and its preparation method and application

A technology of room temperature phosphorescence and heavy atoms, which is applied in the direction of luminescent materials, chemical instruments and methods, and can solve problems such as complex synthesis methods

Active Publication Date: 2021-09-10
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The synthesis method is more complex

Method used

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  • A kind of halogen-free, heavy-atom-free room temperature phosphorescent material and its preparation method and application
  • A kind of halogen-free, heavy-atom-free room temperature phosphorescent material and its preparation method and application
  • A kind of halogen-free, heavy-atom-free room temperature phosphorescent material and its preparation method and application

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Embodiment 1

[0041] 1. A method for preparing a halogen-free, heavy-atom-free room temperature phosphorescent material, comprising the following steps:

[0042] Adopt blending method, weigh acridone ( figure 1No. 1 material), and polyvinyl alcohol at a mass ratio of 1:2000 for screw blending extrusion, extrusion temperature 200 ° C, obtained after pelletizing with blue fluorescence - cyan phosphorescence halogen-free, heavy-atom-free Room temperature phosphorescent particle material.

Embodiment 2

[0044] 1. A method for preparing a halogen-free, heavy-atom-free room temperature phosphorescent material, comprising the following steps:

[0045] Adopt blending method, weigh acridone acetic acid ( figure 1 Substance No. 2), and Bayer 3690A thermoplastic polyurethane at a mass ratio of 1:4000 for screw blending extrusion, extrusion temperature 220 ° C, obtained after pelletizing with cyan fluorescence - cyan phosphorescence halogen-free, no heavy atoms room temperature phosphorescent thermoplastic polyurethane particles.

Embodiment 3

[0047] 1. A method for preparing a halogen-free, heavy-atom-free room temperature phosphorescent material, comprising the following steps:

[0048] By blending method, weigh figure 1 The No. 3 compound, with Bayer 3690A thermoplastic polyurethane, is screw blended and extruded at a mass ratio of 1:6000. The extrusion temperature is 220°C. Room temperature phosphorescent thermoplastic polyurethane particles.

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Abstract

The invention discloses a halogen-free, heavy-atom-free room-temperature phosphorescent material, a preparation method and application thereof. In the present invention, the room temperature phosphorescence reaction material is compounded with the polymer to obtain a pure organic polymer material with long-life room temperature phosphorescence luminescence characteristics; the room temperature phosphorescence reaction material is selected from acridine and its derivatives, or acridine salt and its derivatives, or one or more of acridone and its derivatives. The halogen-free, heavy-atom-free room-temperature phosphorescent material of the present invention has strong luminous properties at room temperature, long luminous life, and a wide range of adjustable colors; the raw materials are simple and easy to obtain, the preparation method is simple and fast, and the cost is low. It is suitable for industrialized preparation and has good practical promotion and application value; moreover, it has no metal elements and no toxic halogen elements, and the whole processing process can only use water as a solvent without using organic solvents, which has obvious advantages in environmental protection.

Description

technical field [0001] The invention belongs to the technical field of organic luminescent materials. More specifically, it relates to a halogen-free, heavy-atom-free room temperature phosphorescent material and its preparation method and application. Background technique [0002] Compared with fluorescence, phosphorescence has a larger Stokes shift, which can avoid the interference of excitation light. At the same time, phosphorescence has a longer lifetime, which can avoid the interference of short-lived fluorescence and scattered light, thereby obtaining a lower detection limit. Fluorescence has been widely used in the field of anti-counterfeiting due to its simple lighting conditions and convenient use. For example, fluorescence technology is used in the anti-counterfeiting of RMB. However, phosphorescence requires low temperature conditions in order to control the non-radiative transition of phosphorescent molecules, which greatly limits the application of phosphoresc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K11/02C09K11/06
CPCC09K11/02C09K11/06C09K2211/1029
Inventor 洪炜
Owner SUN YAT SEN UNIV
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