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Fabric of photo-thermal conversion material with core-shell structure and preparation method thereof

A technology of light-to-heat conversion materials and core-shell structure, which is applied in the fields of plant fibers, textiles, papermaking, fiber treatment, etc., can solve the problem that the durability of washing resistance and light-to-heat conversion performance is difficult to guarantee, and the adhesion between fibers and copper sulfide nanoparticles Focus on problems such as poor strength and uniformity, affecting material properties, etc., to achieve stable light-to-heat conversion ability, improve light-to-heat conversion ability, and soft hand feeling

Active Publication Date: 2020-04-28
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, copper sulfide nanoparticles are easy to agglomerate in the polymer after blending treatment, which will affect the material properties.
Due to poor adhesion and uniformity between fibers and copper sulfide nanoparticles in coating treatment, it is difficult to guarantee the durability of its washing resistance and light-to-heat conversion performance.
These shortcomings are the main factors that limit the application field of copper sulfide photothermal conversion materials

Method used

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  • Fabric of photo-thermal conversion material with core-shell structure and preparation method thereof
  • Fabric of photo-thermal conversion material with core-shell structure and preparation method thereof
  • Fabric of photo-thermal conversion material with core-shell structure and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0037] A method for preparing a fabric with a core-shell structured light-to-heat conversion material, the steps of which are as follows:

[0038] 1. Preparation of copper sulfide nanoparticles:

[0039] Add 1.6ml 50mM sodium sulfide nonahydrate solution to 20ml 4mM copper chloride dihydrate solution at room temperature, stir rapidly for 2 minutes, then add 0.9g trisodium citrate to the mixed solution, and let it stand quickly Heat for 30min, centrifuge at 12000rpm for 30min, discard the supernatant, add deionized water to the precipitate and resuspend, centrifuge at 12000rpm for 30min, repeat twice, dry and grind.

[0040] 2. Preparation of dopamine-coated copper sulfide nanoparticles:

[0041] Add 0.122g of tris to 100ml of water to obtain a Tris solution, adjust the pH value of the solution to 8.5 with 0.1M hydrochloric acid, then add 0.1-10g of dopamine hydrochloride to the solution, stir rapidly, and add 0.5g of copper sulfide The powder was dispersed in freshly prepared ...

Embodiment 2

[0047] A method for preparing a fabric with a core-shell structured light-to-heat conversion material, the steps of which are as follows:

[0048] 1. Preparation of copper sulfide nanoparticles:

[0049] Add 1.6ml 50mM sodium sulfide nonahydrate solution to 20ml 4mM copper chloride dihydrate solution at room temperature, stir rapidly for 2 minutes, then add 0.9g trisodium citrate to the mixed solution, stir rapidly for 2 minutes Finally, the solution was dark brown and a black precipitate was formed at this time. Then stand and heat in a water bath at 80°C for 30 minutes, centrifuge at 12,000 rpm for 30 minutes, discard the supernatant, add deionized water to resuspend, and centrifuge at 12,000 rpm for 30 minutes, repeat twice, dry and grind.

[0050] 2. Preparation of dopamine-coated copper sulfide nanoparticles:

[0051] Add 0.122g of tris to 100ml of water to obtain a Tris solution, adjust the pH value of the solution to 8.5 with 0.1M hydrochloric acid, then add 0.1-10g o...

Embodiment 3

[0057] A method for preparing a fabric with a core-shell structured light-to-heat conversion material, the steps of which are as follows:

[0058] 1. Preparation of copper sulfide nanoparticles:

[0059] Add 1.6ml 50mM sodium sulfide nonahydrate solution to 20ml 4mM copper chloride dihydrate solution at room temperature, stir rapidly for 2 minutes, then add 0.9g trisodium citrate to the mixed solution, stir rapidly for 2 minutes After a few minutes, the solution was now dark brown and a black precipitate formed. Then stand and heat in a water bath at 80°C for 30 minutes, centrifuge at 12,000 rpm for 30 minutes, discard the supernatant, add deionized water to resuspend, and centrifuge at 12,000 rpm for 30 minutes, repeat twice, dry and grind.

[0060] 2. Preparation of dopamine-coated copper sulfide nanoparticles:

[0061] Add 0.122g of tris to 100ml of water to obtain a Tris solution, adjust the pH of the solution to 8.5 with 0.1M hydrochloric acid, then add 0.1-10g of dopam...

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Abstract

The invention provides a preparation method of a fabric of a photo-thermal conversion material with a core-shell structure. The preparation method comprises the steps of (1) preparing copper sulfide nanoparticles; (2) preparing core-shell structure nanoparticles of polydopamine coated copper sulfide; (3) pretreating the fabric with a cationic modifier; and (4) depositing the shell-core structure nanoparticles of polydopamine coated copper sulfide on the surface of the cationic fabric. In addition, the invention also provides a fabric of the photothermal conversion material with the core-shellstructure, which is prepared according to the preparation method of the fabric of the photothermal conversion material with the core-shell structure. The method for preparing the photo-thermal conversion fabric by using the shell-core structure nano material is simple to operate and mild in condition. The prepared photo-thermal conversion fabric is rapid in temperature rise, the temperature rise temperature can be regulated and controlled by adjusting parameters of an infrared light source, the photo-thermal conversion capacity can still be kept after multiple times of infrared light irradiation, and the stability is good.

Description

technical field [0001] The invention belongs to the technical field of photothermal conversion materials, and relates to a fabric with a core-shell structure photothermal conversion material and a preparation method thereof. Background technique [0002] Photothermal conversion nanomaterials are functional materials that can absorb certain light, especially near-infrared light, and generate heat through plasmon resonance or energy transition bands to achieve local temperature rise. They are favored because they can convert near-infrared light into heat energy. . Copper sulfide is an important semiconductor material with abundant crystal structures and phase domains. Due to the presence of copper defects in their structure, they support plasmon resonance in the near-infrared region, absorb light in the near-infrared region to generate heat to achieve local heating, and their surface plasmon properties can be adjusted by changing their composition. Copper sulfide has attract...

Claims

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Application Information

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IPC IPC(8): D06M11/53D06M15/37D06M13/463D06M101/06
CPCD06M11/53D06M15/37D06M13/463D06M2101/06
Inventor 程德山刘宇航冉建华蔡光明毕曙光周阳吴济宏
Owner WUHAN TEXTILE UNIV
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