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Method for growing ultra-strong light absorption carbon nano tube coating on titanium alloy substrate

A technology of carbon nanotubes and titanium alloys, which is applied in the direction of metal material coating process, coating, gaseous chemical plating, etc., to achieve the effect of enhancing the firmness and serialization degree, reducing the overall size and weight

Active Publication Date: 2015-06-24
BEIJING INST OF CONTROL ENG
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  • Summary
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  • Application Information

AI Technical Summary

Problems solved by technology

The difficulty of growing super light-absorbing carbon nanotubes on metal substrates lies in the orientation control and adhesion firmness of carbon nanotubes growing on metal substrates. At present, this process method is rarely reported.

Method used

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  • Method for growing ultra-strong light absorption carbon nano tube coating on titanium alloy substrate
  • Method for growing ultra-strong light absorption carbon nano tube coating on titanium alloy substrate

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Experimental program
Comparison scheme
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Embodiment Construction

[0028] Such as figure 1 Shown, be the flow chart diagram of the inventive method, main steps are as follows:

[0029] 1) Use ultra-fine sandpaper or similar grinding methods to roughen the surface of the titanium alloy sample, so that the surface of the polished titanium alloy sample has fine scratches, which is beneficial to the growth of carbon nanotubes (CNT, Carbon Nanometer Tube);

[0030] 2) Clean the polished titanium alloy sample with an organic solvent such as alcohol or acetone to remove organic pollutants, such as oil stains and fouling, in order to prevent the organic matter volatilized at high temperature from affecting the reaction between the carbon source and the catalyst, and Prevent pollution of carbon nanotube reactor after cooling (such as figure 2 Shown) the quartz tube wall;

[0031] 3) After the organic cleaning is completed, put the titanium alloy sample into a drying oven for drying, and the drying temperature is controlled below 150°C, so that the ...

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Abstract

The invention relates to a method for growing an ultra-strong light absorption carbon nano tube coating on a titanium alloy substrate; by adopting a growth surface micro-nanometer process and a transition layer additional plating process, the firmness and the serialization degree for growing a carbon nano tube on a metal substrate (titanium alloy) are increased; and the problems of being unstable and disordered in the growth direction possibly due to growth of the carbon nano tube on the metal substrate are overcome. The carbon nano tube coating grown according to the method can be firmly attached to the surface of the titanium alloy, has the ultra-strong effect of absorbing light radiation, and is applied to various photoelectric and optical apparatuses and equipment, uniform diffuse reflection surfaces and the like; particularly, the carbon nano tube coating is more effective to apparatuses and equipment for detecting weak signals, such as a fixed star measurement sensor for a spacecraft; and in addition, compared with the traditional manner for eliminating parasitic light by adopting extinction black paint, the capability of eliminating parasitic light can be obviously increased.

Description

technical field [0001] The invention relates to a method for forming a carbon nanotube coating, which can be used for suppressing stray light of optical devices such as light barriers and shading covers prepared on titanium alloy substrates. Background technique [0002] In recent years, with the development of carbon nanotube technology, the characteristics of carbon nanotube ultra-black materials have gradually been recognized by people. The so-called ultra-black material means that its absorption ratio to almost the entire spectrum of light can reach more than 99%. Some scholars have tested the growth of carbon nanotubes on silicon substrates and published related papers, but there is little research on the growth process of carbon nanotubes on metal substrates and the fixation characteristics of carbon nanotubes on metal substrates. [0003] The technology of spraying or growing black light-absorbing coatings on metal substrates can be applied to many occasions, such as...

Claims

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Application Information

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IPC IPC(8): C23C16/26C23C16/02
Inventor 郝云彩余成武梁士通朱宏伟梅志武李兆光孟宪刚戴舒颖张瀚文
Owner BEIJING INST OF CONTROL ENG
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