Carbon nanotube ultra-black coating and preparation method thereof

A technology of carbon nanotubes and coatings, which is applied in the field of carbon nanotube ultra-black coatings and its preparation, can solve the problems of high reflectivity of ultra-black coatings, and achieve the effects of increasing black chroma, improving flexibility, and increasing absorbance

Active Publication Date: 2020-12-01
SHENZHEN XIWAN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of this application is to provide a carbon nanotube ultra-black coating and its preparation method, aiming

Method used

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  • Carbon nanotube ultra-black coating and preparation method thereof
  • Carbon nanotube ultra-black coating and preparation method thereof
  • Carbon nanotube ultra-black coating and preparation method thereof

Examples

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Example Embodiment

[0045] A first aspect of the present application provides a method for preparing a carbon nanotube ultra-black coating, the method comprising the following steps:

[0046] S01. Disperse carbon black in a first dispersion liquid of a first dispersant, an organic auxiliary agent and deionized water to obtain a first mixed system, and mechanically grind the first mixed system to obtain a carbon black dispersion liquid, wherein the first mixed system is a dispersant is a water-based dispersing resin;

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

[0048] S03. The carbon black dispersion and the carbon nanotube dispersion are mixed to obtain a carbon nanotube ultra-black coating.

[0049] The preparation method of...

Example Embodiment

[0094] Example 1

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

[0096] (1) 40g of water-based polyacrylate and 5g of ethylene glycol were added to 10g of deionized water for stirring to obtain a first dispersion, and 6g of carbon black was added in batches to the first dispersion and stirred and mixed, and the obtained first dispersion was The mixed system was sand-milled and dispersed for 5h.

[0097] (2) 10g of sodium hydroxymethyl cellulose is added to 9g of water for dispersion treatment to obtain a second dispersion liquid, and 0.6g of carbon nanotubes are added to the second dispersion liquid for dispersion treatment to obtain a second mixed system, and the second mixed system Grinding was carried out under a three-roll mill, and 5 g of water was added for uniform stirring to form a carbon nanotube dispersion. Wherein, the method of grinding the second mixing system under the three-roll mill is as follows: adjustin...

Example Embodiment

[0099] Example 2

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

[0101] (1) 40g of water-based polyacrylate and 5g of ethylene glycol were added to 10g of deionized water for stirring to obtain a first dispersion, and 6g of carbon black was added in batches to the first dispersion and stirred and mixed, and the obtained first dispersion was The mixed system was sand-milled and dispersed for 5h.

[0102] (2) 10g of sodium hydroxymethyl cellulose is added to 9g of water to carry out dispersion treatment to obtain the second dispersion liquid, and 1g of carbon nanotubes are added to the second dispersion liquid for dispersion treatment to obtain the second mixed system, and the second mixed system is in Grinding was carried out under a three-roll mill, and 5 g of water was added for uniform stirring to form a carbon nanotube dispersion. Wherein, the method for grinding the second mixing system under the three-roll mill is as f...

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Abstract

The invention relates to the technical field of coating materials, and provides a carbon nanotube ultra-black coating and a preparation method thereof. The preparation method of the carbon nanotube ultra-black coating provided by the invention comprises the following steps: dispersing carbon black in a first dispersion liquid containing a first dispersing agent, an organic auxiliary agent and deionized water to obtain a first mixed system, and mechanically grinding the first mixed system to obtain a carbon black dispersion liquid, wherein the first dispersing agent is aqueous dispersion resin,preparing a second dispersion liquid mixed with a second dispersant and deionized water, dispersing carbon nanotubes in the second dispersion liquid to obtain a second mixed system, grinding the second mixed system, adding deionized water for dilution to obtain a carbon nanotube dispersion liquid, and carrying out mixing treatment on the carbon black dispersion liquid and the carbon nanotube dispersion liquid to obtain the ultra-black coating. Compared with an ultra-black coating singly taking carbon black as a pigment, the reflectivity of the carbon nanotube ultra-black coating provided by the invention 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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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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