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High-temperature color-changing material comprising cyano group structure, preparation method and application of material

A technology of color-changing materials and matrix materials, applied in heat-sensitive coatings, polyester coatings, fire alarms that rely on radiation, etc., can solve problems such as irreversible environmental hazards, technical difficulties, and difficulty in extinguishing, and achieve low prices , raw materials are easy to obtain, and the effect of reducing hazards

Active Publication Date: 2019-03-08
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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)

Method used

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  • High-temperature color-changing material comprising cyano group structure, preparation method and application of material
  • High-temperature color-changing material comprising cyano group structure, preparation method and application of material
  • High-temperature color-changing material comprising cyano group structure, preparation method and application of material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Put 100 parts by weight of thermoplastic acrylate resin paint and 20 parts by weight of 5-(3,4-cyanophenoxy) dimethyl isophthalate into the container, and use a high-speed stirrer at a stirring speed of 400r / min After stirring for 60 minutes, a high-temperature discoloration material was obtained, and the discoloration temperature of the material was 225°C.

Embodiment 2

[0052] Put 100 parts by weight of thermosetting acrylic resin paint and 10 parts by weight of 4-nitrophthalonitrile into the container, and use a high-speed stirrer to stir for 58 minutes at a stirring speed of 500r / min to obtain a high-temperature color-changing material. The discoloration temperature is 150°C.

Embodiment 3

[0054] Put 100 parts by weight of silicone resin paint and 5 parts by weight of 5-(3,4-cyanophenoxy) dimethyl isophthalate into the container, use a high-speed stirrer at a stirring speed of 1000r / min After stirring for 40 minutes, a high-temperature discoloration material was obtained, and the discoloration temperature of the material was 140°C.

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Abstract

The invention discloses a high-temperature color-changing material comprising a cyano group structure, a preparation method and an application of the material. The color-changing material consists of100 parts by weight of base materials, 1-20 parts by weight of color-changing substances and 0-15 parts by weight of processing additives, wherein the color-changing temperature is 120-250 DEG C. As the high-temperature color-changing material comprises the color-changing substances containing the cyano group structure, the material can rapidly change the structure at high temperature to form a chromogenic group containing a phthalocyanine structure, so that the whole material can have obvious color change and can be used for early fire detection and alarm. The preparation method of the high-temperature color-changing material is simple in process and easy to operate, so that the material has an industrial prospect.

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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D183/04C09D125/06C09D127/12C09D161/28C09D161/06C09D161/24C09D167/00C09D5/26C09D7/63C08K5/315C08L63/00C08L67/06G08B17/12
CPCC08K5/315C09D5/26C09D125/06C09D127/12C09D133/04C09D161/06C09D161/24C09D161/28C09D167/00C09D183/04C09D7/63G08B17/125C08K5/32C08L63/00C08L67/06
Inventor 王玉忠付腾吴万寿陈琳汪秀丽郭德明
Owner SICHUAN UNIV
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