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Thermo-sensitive composite material, as well as preparation method and application thereof

A composite material, temperature-sensitive technology, applied in thermometers, thermometers with physical/chemical changes, instruments, etc., can solve problems such as delaying the best time to deal with problems, unable to locate the local temperature of hot spots in a timely and accurate manner, etc. The effect of timely and accurate alarm, stable performance and easy storage

Inactive Publication Date: 2014-02-05
NO 33 RES INST OF CHINA ELECTRONICS TECHNOOGY GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The temperature measured by this device is the ambient temperature in the power distribution cabinet, which cannot locate the local temperature of the hot spot in time and accurately, and may even delay the best time to deal with the problem

Method used

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  • Thermo-sensitive composite material, as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The temperature-sensitive composite material is composed of 1.5% polyacrylamide, 8% ammonium bicarbonate, 0.5% sodium dodecylbenzenesulfonate, and 90% water. Ammonium bicarbonate and sodium dodecylbenzene sulfonate are dissolved in water to make an aqueous solution, polyacrylamide is added, and left to stand for 0.5 hours to form a paste-like temperature-sensitive composite material.

[0028] The structure of the overheating alarm device is as follows: figure 1 As shown, it consists of three parts: a base 4 made of aluminum alloy and easy to conduct heat; a container 5 made of hard corrosion-resistant plastic for holding composite materials 6 ; and a gas-sensitive alarm device 7 .

[0029] Put the temperature-sensitive composite material 6 into the container 5, connect and assemble it on the base 4 through the thread 3, and seal the joint with a sealing rubber ring. The bottom surface of the base 4 is set in an inner arc shape, and a slender through hole 2 with a lengt...

Embodiment 2

[0033] Polyvinyl alcohol 2%, ammonia 15%, water 93%. Dissolve ammonia water in water to form an aqueous solution, add polyvinyl alcohol, and let it stand for 0.5 hours to form a paste-like temperature-sensitive composite material.

Embodiment 3

[0035] Ammonium polyacrylate 1%, 95% ethanol 10%, water 89%. Dissolve 95% ethanol in water to make an aqueous solution, add polyacrylic acid amine, and let it stand for 0.5 hours to form a paste-like temperature-sensitive composite material.

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Abstract

The invention relates to a thermo-sensitive composite material, as well as a preparation method and application thereof. The thermo-sensitive composite material is prepared by mixing the following components in percentage by weight: 1-2 percent of high water absorption resin carrier, 5-20 percent of volatile substance, 0-1 percent of emulsifier, and the balance of water, wherein the volatile substance is one of ammonium hydroxide, ethanol, glacial acetic acid and ammonium bicarbonate. The composite material serving as an overheat warning material is applied to an overheat warning system of large power stations and motor distribution cabinets, and has the advantages of normal temperature stable performance, good thermosensitive property, little usage, environmental friendliness, timely and accurate warning and the like.

Description

technical field [0001] The invention relates to a functional composite material, in particular to a temperature-sensitive composite material which can be used as an alarm medium in an overheat alarm system of electrical equipment. Background technique [0002] The heating of electrical equipment during operation is a ubiquitous physical phenomenon, and it is also a major safety hazard that affects safe production and stable operation of equipment. In the power distribution cabinets of large power supply systems such as power plants and locomotives, when the connection between the cable output end and the main power supply is loose, the local temperature can reach above 80°C, and even reach above 100°C in severe cases. If the local temperature is too high, it will cause Fires can cause environmental pollution and even endanger human life. [0003] In order to eliminate such potential safety hazards, temperature-sensitive stickers are generally used to detect the root tempera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L33/26C08L33/02C08L29/04C08K3/28C08K5/05C08K5/09C08K3/26G01K11/02
Inventor 任圣平姚运生李国钰桂亚强王东红
Owner NO 33 RES INST OF CHINA ELECTRONICS TECHNOOGY GRP
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