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Carbon nanotube super black paint and preparation method thereof

A carbon nanotube and ultra-black technology, which is applied in the field of coating materials, can solve the problem of high reflectivity of ultra-black paint, and achieve the effect of increasing black chromaticity, facilitating industrial mass production and improving flexibility.

Active Publication Date: 2021-09-24
SHENZHEN XIWAN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of this application is to provide a carbon nanotube ultra-black coating and its preparation method, aiming to solve the problem that the reflectivity of existing ultra-black coatings with carbon black as black pigment is still high

Method used

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  • Carbon nanotube super black paint and preparation method thereof
  • Carbon nanotube super black paint and preparation method thereof
  • Carbon nanotube super black paint and preparation method thereof

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preparation example Construction

[0045] The first aspect of the present application provides a method for preparing a carbon nanotube super black coating, the method may further comprise the steps:

[0046] S01. Carbon black is dispersed in the first dispersion liquid of the first dispersant, organic auxiliary agent and deionized water to obtain the first mixed system, and the first mixed system is mechanically ground to obtain the carbon black dispersion liquid, wherein, the first mixed system A dispersant is an aqueous dispersion resin;

[0047] S02. Configure the second dispersion liquid mixed with the second dispersant and deionized water, and disperse the carbon nanotubes in the second dispersion liquid to obtain the second mixed system. After the second mixed system is ground, add deionized Diluted with water to obtain a carbon nanotube dispersion;

[0048] S03. Mixing the carbon black dispersion and the carbon nanotube dispersion to obtain a carbon nanotube super black coating.

[0049] The preparati...

Embodiment 1

[0095] A preparation method of carbon nanotube ultra-black paint, comprising the following steps:

[0096] (1) Add 40g water-based polyacrylate, 5g ethylene glycol into 10g deionized water and stir to obtain the first dispersion liquid, add 6g carbon black in batches to the first dispersion liquid and stir and mix, the obtained first dispersion liquid The mixed system was sand milled and dispersed for 5 hours.

[0097] (2) 10g sodium hydroxymethyl cellulose is added into 9g water to carry out dispersion treatment to obtain the second dispersion liquid, disperse treatment after adding 0.6g carbon nanotubes in the second dispersion liquid, obtain the second mixed system, the second mixed system Grind under a three-roll mill, add 5 g of water and stir evenly to form a carbon nanotube dispersion. Wherein, the method for grinding the second mixed system under the three-roll mill is as follows: the roller gap of the three-roll mill is adjusted to be 20 μm, and the three-roll mill i...

Embodiment 2

[0100] A preparation method of carbon nanotube ultra-black paint, comprising the following steps:

[0101] (1) Add 40g water-based polyacrylate, 5g ethylene glycol into 10g deionized water and stir to obtain the first dispersion liquid, add 6g carbon black in batches to the first dispersion liquid and stir and mix, the obtained first dispersion liquid The mixed system was sand milled and dispersed for 5 hours.

[0102] (2) 10g sodium hydroxymethyl cellulose is added into 9g water and carry out dispersion treatment to obtain the second dispersion liquid, disperse treatment after adding 1g carbon nanotube in the second dispersion liquid, obtain the second mixing system, the second mixing system is in Grind under a three-roll mill, add 5 g of water and stir evenly to form a carbon nanotube dispersion. Wherein, the method for grinding the second mixed system under the three-roll mill is as follows: the roller gap of the three-roll mill is adjusted to be 20 μm, and the three-roll mi...

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Abstract

The present application relates to the technical field of coating materials, and provides a carbon nanotube super black coating and a preparation method thereof. The preparation method of carbon nanotube super black coating provided by the present application includes the following steps: dispersing carbon black in a first dispersion liquid of a first dispersant, an organic auxiliary agent and deionized water to obtain a first mixed system, The first mixed system is mechanically ground to obtain a carbon black dispersion, wherein the first dispersant is an aqueous dispersion resin; a second dispersion mixed with a second dispersant and deionized water is configured, and the carbon nanotubes are dispersed in the In the second dispersion liquid, a second mixed system is obtained, and after the second mixed system is subjected to grinding treatment, deionized water is added for dilution to obtain a carbon nanotube dispersion; the carbon black dispersion and the carbon nanotubes are mixed. The tube dispersion is mixed to obtain an ultra-black paint. Compared with the ultra-black paint using carbon black as the pigment alone, the reflectivity of the carbon nanotube ultra-black paint provided by the present application is reduced.

Description

technical field [0001] The application belongs to the technical field of coating materials, in particular to a carbon nanotube ultra-black coating and a preparation method thereof. Background technique [0002] Ultra-black materials, also called "invisible" materials, are a newly emerging "blackest" material. The ultra-black material only reflects 0.035% of the light, reaching a level that cannot be distinguished by the naked eye. It is as black as a black hole. This "super black" coating material is named "Vantablack". The emergence of ultra-black materials marks a major breakthrough in practical nanotechnology for optical instruments. In practical use, it can improve the sensitivity of optical instruments for use in astronomical cameras, telescopes, and infrared scanning systems. Its ability to reduce astigmatism will improve the "vision" of astronomical telescopes when viewing the faintest stars, and can be used for calibration. The camera for the oldest matter in the u...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/04C09D101/28C09D5/32C09D7/61
CPCC08K2201/003C08K2201/004C08K2201/011C09D5/32C09D133/04C09D7/61C09D7/66C08L1/284C08K3/041C08K3/04
Inventor 李昌林
Owner SHENZHEN XIWAN TECH CO LTD
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