High-temperature color-changing material containing cyano group structure and its preparation method and application

Abstract

The invention discloses a high-temperature discoloration material containing a cyano group structure and its preparation method and application. The discoloration material consists of 100 parts by weight of a base material, 1-20 parts by weight of a discoloration substance and 0-15 parts by weight of a processing aid. Its discoloration temperature is 120-250°C. Since the high-temperature color-changing material provided by the present invention contains a color-changing substance containing a cyano group structure, it can rapidly undergo structural transformation at high temperature to form a chromophore containing a phthalocyanine structure, thereby causing an obvious color change of the entire material. It can be used for early fire detection and alarm. The preparation method of the high-temperature color-changing material has a simple process and is easy to operate, so it has industrialization prospects.

Description

technical field [0001] The invention belongs to the technical field of high-temperature discoloration material and its preparation and fire detection and alarm. Specifically, the present invention provides a material that can release a color-changing signal at a high temperature (120-250°C) and a preparation method thereof, and uses the property that the material can change color at a high temperature before a fire flame is generated, combined with a monitoring camera and a computer Program, real-time early fire detection and alarm. Background technique [0002] The fire problem seriously threatens public safety and industrial safety. It will not only cause serious casualties, but also cause irreparable property losses. The combustibles in public buildings and factories will not produce flames until the accumulated heat reaches the ignition point (about 250-500°C), which will cause the flame to spread and cause a fire. Aiming at the problem of fire safety, the scientific a...

AI Technical Summary

Problems solved by technology

If it is used in chemical plants, scientific laboratories, airplanes, petrochemical plants, nuclear power plants, power plants and other places, it is too lagging, because once a flame is generated in these places, it will be extremely difficult to extinguish, and may even cause explosions and irreversible environmental hazards

Therefore, these places require as much as possible to realize the alarm before the flame is generated, but the image-based fire detection technology is difficult to achieve (because the monitored information can only be the image characteristics of the flame)

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