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
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[0036] Example 1
[0037] A method for preparing a fabric with a core-shell structure light-to-heat conversion material, the steps are as follows:
[0038] 1. Preparation of copper sulfide nanoparticles:
[0039] Add 1.6ml of 50mM sodium sulfide nonahydrate solution to 20ml of 4mM copper chloride dihydrate solution at room temperature, stir quickly for 2 minutes, then add 0.9g of trisodium citrate to the mixed solution and let it stand quickly Heat for 30 min, centrifuge at 12000 rpm for 30 min, discard the supernatant, add deionized water to the pellet to resuspend, centrifuge at 12000 rpm for 30 min, repeat twice, dry and grind.
[0040] 2. Preparation of dopamine-coated copper sulfide nanoparticles:
[0041] Add 0.122g of tris(hydroxymethyl)aminomethane 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 dopamine hydrochloride to the solution. After stirring quickly, add 0.5g of copper sulfide to the solu...
Example Embodiment
[0046] Example 2
[0047] A method for preparing a fabric with a core-shell structure light-to-heat conversion material, the steps are as follows:
[0048] 1. Preparation of copper sulfide nanoparticles:
[0049] Add 1.6ml of 50mM sodium sulfide nonahydrate solution to 20ml of 4mM copper chloride dihydrate solution at room temperature. After stirring quickly for 2 minutes, add 0.9g of trisodium citrate to the mixed solution and stir quickly for 2 minutes. Later, at this time the solution was dark brown with black precipitate formed. Then, let it stand and heat for 30 min in a water bath at 80°C, centrifuge at 12,000 rpm for 30 min, discard the supernatant, add deionized water to the precipitate and resuspend it and centrifuge at 12,000 rpm for 30 min, repeat twice, drying and grinding.
[0050] 2. Preparation of dopamine-coated copper sulfide nanoparticles:
[0051] Add 0.122g of tris(hydroxymethyl)aminomethane to 100ml of water to obtain a Tris solution. Adjust the pH of the solution...
Example Embodiment
[0056] Example 3
[0057] A method for preparing a fabric with a core-shell structure light-to-heat conversion material, the steps are as follows:
[0058] 1. Preparation of copper sulfide nanoparticles:
[0059] Add 1.6ml of 50mM sodium sulfide nonahydrate solution to 20ml of 4mM copper chloride dihydrate solution at room temperature. After stirring quickly for 2 minutes, add 0.9g of trisodium citrate to the mixed solution and stir quickly for 2 Minutes later, the solution was dark brown and black precipitate formed. Then, let it stand and heat for 30 min in a water bath at 80°C, centrifuge at 12,000 rpm for 30 min, discard the supernatant, add deionized water to the precipitate and resuspend it and centrifuge at 12,000 rpm for 30 min, repeat twice, drying and grinding.
[0060] 2. Preparation of dopamine-coated copper sulfide nanoparticles:
[0061] Add 0.122g of tris(hydroxymethyl)aminomethane to 100ml of water to obtain a Tris solution. Adjust the pH of the solution to 8.5 with 0....
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