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Flexible stress response type device using flexible organic triboluminescent material and preparation method thereof

A triboluminescent and flexible technology, applied in the direction of luminescent materials, chemical instruments and methods, coatings, etc., can solve the problems that are rarely reported, and achieve the effects of good repeatability, high luminous efficiency, and improved safety and stability

Inactive Publication Date: 2020-11-20
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above damage detection technologies can only be applied to aerospace equipment "before launch" or "after recovery",

Method used

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  • Flexible stress response type device using flexible organic triboluminescent material and preparation method thereof
  • Flexible stress response type device using flexible organic triboluminescent material and preparation method thereof
  • Flexible stress response type device using flexible organic triboluminescent material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0025] In the preparation method of the stress-responsive flexible luminescent film, a flexible organic luminescent material is evenly coated between two layers of polymer film substrates, and the surrounding of the film is sealed with curing glue, and the flexible film is shaken slightly or received external stress stimulation Can produce bright luminescence afterwards.

[0026] In the preparation method of the curved surface stress-responsive light-emitting device, the flexible organic triboluminescent material is melted and evenly coated on the inner surface of the spherical glass. When the spherical glass is broken by external force stimulation, the triboluminescent material is extremely sensitive to the cracks of the substrate. , accompanied by a bright glow.

Embodiment 1

[0028] Preparation of stress-responsive flexible film M1: uniformly coat a flexible triboluminescent coating T1 with a thickness of 0.5 mm on a polyethylene terephthalate transparent film, heat to melt the material, and cover another layer on it A polyethylene terephthalate transparent film is encapsulated with a curing glue between two transparent films to obtain a stress-responsive flexible film M1.

Embodiment 2

[0030] Preparation of the stress-responsive flexible film M2: referring to the preparation method in Example 1, the stress-responsive flexible film M2 was prepared using the flexible triboluminescence material T2.

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Abstract

The invention relates to a flexible stress response type device using a flexible organic triboluminescence material and a preparation method thereof. A flexible triboluminescence coating is arranged between an upper transparent film substrate and a lower transparent film substrate, and a planar flexible stress response type device is formed, or a flexible triboluminescence coating is arranged between the curved surface substrate material and the transparent film substrate to form the curved surface stress response type luminescent device. The preparation method is simple and has good repeatability, the prepared flexible friction light-emitting device has relatively high light-emitting efficiency. The optical response characteristic on external stress stimulation or substrate material cracks is extremely sensitive, along with fluorescence signals easy to detect, real-time monitoring of aviation, aerospace and navigation equipment material damage can be achieved, the material flaw detection process is greatly simplified, and important research value and scientific significance are achieved for improving the safety and stability of aerospace and aviation equipment.

Description

technical field [0001] The invention belongs to the technical field of flexible organic triboluminescent materials, and relates to a flexible stress-responsive device and a preparation method using flexible organic triboluminescent materials. The flexible organic triboluminescent materials involved have good triboluminescent properties in an amorphous state And higher fluorescence quantum efficiency, can be prepared into a stress-responsive flexible optoelectronic device, which is used in high-precision damage monitoring and micro-damage detection of precision instruments and aviation, aerospace, and navigation equipment. Background technique [0002] The "three aviation" equipment of aviation, aerospace and navigation are often used in extreme environments (ultra-high temperature, ultra-low temperature, high radiation, etc.), which brings great challenges to the stability and safety of their operation. For example, in the "Columbia" accident, it was precisely because a piec...

Claims

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Application Information

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IPC IPC(8): B32B27/36B32B27/28B32B27/06B32B17/10B32B1/00B32B33/00C09K11/02C03C17/28
CPCB32B27/36B32B27/281B32B27/286B32B27/285B32B27/06B32B17/10B32B1/00B32B33/00C09K11/02C03C17/28B32B2255/10B32B2307/40
Inventor 谢宗良于涛张彪黄成孙浩东王海兰董孟阳黄维
Owner NORTHWESTERN POLYTECHNICAL UNIV