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Preparation method of a multilayer terahertz wave-absorbing composite carbon fiber board

A technology of composite carbon fiber and carbon fiber board, applied in the direction of optics, instruments, electrical components, etc., can solve the problems of lack of theoretical guidance and experience enlightenment, and achieve the effect of highlighting substantive characteristics

Active Publication Date: 2019-11-08
TAICANG BIQI NEW MATERIAL RES & DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] To sum up, the research and development of terahertz absorbing materials is mostly in the stage of trial and error, lacking theoretical guidance and experience enlightenment. The consensus of those skilled in the art is that the absorption rate of terahertz absorbing materials is not only related to the components of the materials, but also Also depending on the structure of the material, the composition and structure of the composite need to be optimized synergistically to obtain a terahertz absorbing composite with high absorption rate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Divide the area to 50×50cm 2 The 1mm thick 3K carbon fiber plate is placed in a vacuum coating machine, and the vacuum degree is 2×10 -3 0.15 μm thick porphyrin iron film, 0.35 μm thick cis-1,3-dibenzyl-tetrahydro-2H-furo[3,4-d]imidazole-2 , 4,6-triketone thin film, 0.05 μm thick aluminum thin film, 0.3 μm thick crystal violet thin film, 0.1 μm thick copper thin film, 0.1 μm thick (3aR,8aS,8bS)-1,3-dibenzyl -2-oxo-decahydroimidazolium[3,4-d]thieno[1,2-a]sulfonium bromide thin film, 0.3μm thick octacarboxyphthalocyanine copper thin film to obtain a seven-layer composite board;

[0038] Put the seven-layer composite board on the coating machine, and coat 3 μm thick isopropyl dioleate (dioctyl phosphate acyloxy) on the octacarboxyphthalocyanine copper film at a speed of 2000 rpm Titanate film to obtain an eight-layer composite board;

[0039] Put the eight-layer composite board in the ultraviolet radiation test box, irradiate it under 365nm ultraviolet light for 20 sec...

Embodiment 2

[0042] Divide the area to 50×50cm 2 The 1mm thick 3K carbon fiber plate is placed in a vacuum coating machine, and the vacuum degree is 2×10 -3 0.1 μm thick porphyrin iron film, 0.3 μm thick cis-1,3-dibenzyl-tetrahydro-2H-furo[3,4-d]imidazole-2 , 4,6-triketone thin film, 0.05 μm thick aluminum thin film, 0.1 μm thick crystal violet thin film, 0.05 μm thick copper thin film, 0.1 μm thick (3aR,8aS,8bS)-1,3-dibenzyl -2-oxo-decahydroimidazolium[3,4-d]thieno[1,2-a]sulfonium bromide thin film, 0.3μm thick octacarboxyphthalocyanine copper thin film to obtain a seven-layer composite board;

[0043] Put the seven-layer composite plate on the coating machine, and coat 2 μm thick isopropyl dioleate (dioctyl phosphate acyloxy) on the octacarboxyl phthalocyanine copper film at a speed of 2000 rpm Titanate film to obtain an eight-layer composite board;

[0044] Put the eight-layer composite board in the ultraviolet radiation test box, irradiate it under 365nm ultraviolet light for 10 se...

Embodiment 3

[0047] Divide the area to 50×50cm 2 The 1mm thick 3K carbon fiber plate is placed in a vacuum coating machine, and the vacuum degree is 2×10 -3 Under Pa, a 0.3 μm thick porphyrin iron film, a 0.5 μm thick cis-1,3-dibenzyl-tetrahydro-2H-furo[3,4-d]imidazole-2 , 4,6-triketone thin film, 0.1 μm thick aluminum thin film, 0.3 μm thick crystal violet thin film, 0.1 μm thick copper thin film, 0.3 μm thick (3aR,8aS,8bS)-1,3-dibenzyl -2-Oxo-decahydroimidazolium[3,4-d]thieno[1,2-a]sulfonium bromide thin film, 0.5μm thick octacarboxyphthalocyanine copper thin film to obtain a seven-layer composite board;

[0048] Put the seven-layer composite board on the coating machine, and coat 3 μm thick isopropyl dioleate (dioctyl phosphate acyloxy) on the octacarboxyphthalocyanine copper film at a speed of 2000 rpm Titanate film to obtain an eight-layer composite board;

[0049] Put the eight-layer composite board in the ultraviolet radiation test box, irradiate it under 365nm ultraviolet light...

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Abstract

The invention, which belongs to the technical field of composite materials, in particular relates to a preparation method of a multilayer terahertz wave-absorbing composite carbon fiber board. Vacuumevaporation of ferroporphyrin, cis-1,3-dibenzyl-tetrahydro-2H-furo[3,4-d]imidazole-2,4,6-triketone, aluminum, crystal violet, copper, (3aR,8aS,8bS)-1,3-dibenzyl-2-oxo-decahydroimidazole [3,4-d]thieno[1,2-a] sulfonium bromide, and octacarboxyphthalocyaninato copper is performed successively on a carbon fiber board; coating of an isopropyl dioleic (dioctylphosphate) titanate film is carried out; ultraviolet light irradiation, heating and annealing are performed to obtain a multilayer terahertz wave-absorbing composite carbon fiber board. The absorption rate of the electromagnetic wave by the film within the frequency range of 7.1 to 9.8 THz is 98.1% to 99.7%.

Description

technical field [0001] The invention belongs to the technical field of composite materials, in particular to a preparation method of a multi-layer terahertz wave-absorbing composite carbon fiber board. Background technique [0002] Terahertz waves generally refer to electromagnetic waves with a frequency range between 0.1 and 10 THz. It not only has the advantages of infrared and microwave, but also has a unique frequency band advantage. Since the end of the 20th century, the successful development of stable and efficient terahertz wave emission sources and detectors has made terahertz technology gradually mature. In recent years, terahertz technology has made major breakthroughs in many fields such as imaging, detection, communication, military, space, and biology, and has gradually become a research hotspot in multiple disciplines. [0003] Soochow University provides a terahertz wave absorbing structure (CN109521504A). The terahertz wave absorbing structure includes: mu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/00H01Q17/00
CPCG02B5/003H01Q17/00
Inventor 蓝碧健
Owner TAICANG BIQI NEW MATERIAL RES & DEV