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Material with controlled infrared emissivity and method of producing the same

A technology of infrared emissivity and dispersion, which is applied in the field of materials with controllable infrared emissivity and its preparation, can solve the problems of being unable to find them, and achieve the effect of simple operation, single raw material, and controllable infrared emissivity

Inactive Publication Date: 2008-04-02
FUDAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limitations of the structure and mechanical physical properties of the material itself and technical problems, it is impossible to find an ideal material that can satisfy both infrared camouflage and engineering practicality.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Weigh 10 grams of SEBS powder, put it into a jar, add 80 grams of toluene into the bottle, stir and dissolve at room temperature for 24 hours, and obtain a toluene solution of SEBS. Use a sieve to sieve potassium bromide particles with a particle size of 35 μm. Gradually add 10 grams of potassium bromide particles with a particle size of 35 μm to the SEBS toluene solution, and stir while adding, so that the potassium bromide particles are evenly dispersed in the solution. After the air bubbles in the mixed solution are exhausted, pour it into a mold and dry it at room temperature for 48 hours to obtain a translucent whitish coating. Its emissivity is 90%.

Embodiment 2

[0015] Weigh 10 grams of SBS powder, put it into a jar, add 70 grams of toluene into the bottle, stir and dissolve at room temperature for 20 hours, and obtain a toluene solution of SEBS. Use a sieve to sieve potassium bromide particles with a particle size of 50 μm. Gradually add 20 grams of potassium bromide particles with a particle size of 50 μm to the SBS toluene solution, and stir while adding, so that the potassium bromide particles are evenly dispersed in the solution. After the air bubbles in the mixed solution are exhausted, pour it into a mold and dry it at room temperature for 48 hours to obtain a translucent whitish coating. Its emissivity is 85%.

Embodiment 3

[0017] Weigh 5 grams of SIS powder, put it into a jar, add 65 grams of toluene into the bottle, stir and dissolve at room temperature for 24 hours, and obtain a toluene solution of SIS. Potassium bromide particles with a particle size of 100 μm were sieved with a sieve. Gradually add 30 grams of potassium bromide particles with a particle size of 100 μm to the SIS toluene solution, and stir while adding, so that the potassium bromide particles are evenly dispersed in the solution. After the air bubbles in the mixed solution are exhausted, pour it into a mold and dry it at room temperature for 48 hours to obtain a translucent whitish coating. Its emissivity is 75%.

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PUM

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Abstract

The present invention belongs to the technological field of functional materials, and specifically relates to a material of controllable rate of infrared emission and the preparation method. In the present invention, the crystals of halogen salt category of infrared transparence and of different particle sizes are used as dispersant; the resin of infrared transparence is used as dispersion medium; the adjustment of crystal type, particle size and concentration can be used to control the micro structure of infrared transparent material, so as to control the rate of infrared emission of the material. The method is simple and effective; the preparation is convenient; and the method is a common preparation method of materials of controllable rate of infrared emission.

Description

technical field [0001] The invention belongs to the technical field of functional materials, and in particular relates to a material with controllable infrared emissivity and a preparation method thereof. technical background [0002] With the wide application of infrared detection technology in the military field, infrared camouflage technology, as an effective means to improve the survivability of weapon equipment systems and strategic targets, has attracted more and more attention from governments and scientific researchers all over the world. The thermal imaging reconnaissance system mainly identifies the target by measuring the difference in the radiation intensity between the target and the background in the infrared band. The purpose of infrared camouflage is to change the radiation intensity of the target so that the infrared radiation brightness of the target and the background can be as long as possible. It is consistent with the background brightness change, makin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L53/02C08K3/16
Inventor 褚轶雯汪长春
Owner FUDAN UNIV
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