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Halogen-free and heavy-atom-free room-temperature phosphorescent material as well as preparation method and application thereof

A room temperature phosphorescence and heavy atom technology, applied in the direction of luminescent materials, chemical instruments and methods, etc., can solve problems such as complex synthesis methods, achieve strong luminescent properties, good practical application value, and easy to obtain effects

Active Publication Date: 2020-07-03
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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  • Halogen-free and heavy-atom-free room-temperature phosphorescent material as well as preparation method and application thereof
  • Halogen-free and heavy-atom-free room-temperature phosphorescent material as well as preparation method and application thereof
  • Halogen-free and heavy-atom-free room-temperature phosphorescent material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

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 and heavy-atom-free room-temperature phosphorescent material as well as a preparation method and application thereof. A room-temperature phosphorescent reactionmaterial is compounded with a polymer to obtain a pure organic polymer material with a long-life room-temperature phosphorescent light-emitting characteristic; wherein the room-temperature phosphorescent reaction material is selected from one or more of acridine and derivatives thereof, acridinium salt and derivatives thereof, or acridone and derivatives thereof. The halogen-free and heavy-atom-free room-temperature phosphorescent material has a very strong luminescence property, a long luminescence service life and a wide color adjustable range at a room temperature; the raw materials are simple and easily available, and the preparation method is simple, quick, low in cost and suitable for industrial preparation and has a high actual application and popularization value. No metal elementor toxic halogen element exists, only water is used as a solvent in the whole processing process, no organic solvent is used, and the method has obvious advantages in the aspect of 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 Applications(China)
IPC IPC(8): C09K11/02C09K11/06
CPCC09K11/02C09K11/06C09K2211/1029
Inventor 洪炜
Owner SUN YAT SEN UNIV
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