Hydrogenated carbon nanotube gel, preparation method thereof and skin care product
A technology of carbon nanotubes and multi-walled carbon nanotubes, which is applied in the field of skin care products, can solve the problems of carbon nanotubes' reducibility not meeting the demand and poor dispersibility, and achieve the effect of improving reducibility and dispersibility
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[0044] One embodiment of the present invention proposes a method for preparing a hydrogenated carbon nanotube gel, comprising the following steps:
[0045] a) carrying out hydroxylation on carbon nanotubes to obtain hydroxyl carbon nanotubes;
[0046] b) Hydrogelling the above hydroxyl carbon nanotubes to obtain hydrogenated carbon nanotube gels.
[0047] The preparation method of the hydrogenated carbon nanotube gel proposed in the embodiment of the present invention firstly hydroxylates and then hydrogenates the carbon nanotubes to form the hydrogenated carbon nanotube gel. The gel can significantly improve the dispersibility of the carbon nanotubes in media such as emulsions, and at the same time, since a large amount of hydrogen can be stored in the pore walls of the carbon nanotubes, the reducibility of the carbon nanotubes can also be greatly improved.
[0048] In an embodiment of the present invention, the carbon nanotubes include single-wall carbon nanotubes or multi-...
Embodiment 1
[0074] Example 1 A preparation method of hydrogenated carbon nanotube gel (HS-MWCNT), comprising the steps of:
[0075] Carry out hydroxylation and hydrogelation treatment on carbon nanotubes successively;
[0076] The carbon nanotubes are multi-walled carbon nanotubes.
[0077] The carbon nanotubes are subjected to hydroxylation treatment, comprising the following steps:
[0078] 0.5 g of multi-walled carbon nanotubes was dissolved in 200 ml of 6 mol / L hydrochloric acid aqueous solution, and ultrasonicated for 1 hour. Then react at 95° C. for 20 hours, and then cool down to room temperature. The reaction solution is filtered, and the filtrate is filtered to remove iron ions and excess hydrochloric acid in the carbon nanotubes. The filter cake was washed several times with distilled water until the filtrate was neutral. The filter cake was then dried in an oven at 80°C for 24 hours.
[0079] Subsequently, 20 ml of freshly distilled tetrahydrofuran was deoxygenated with ...
Embodiment 2
[0082] Example 2 A kind of preparation method of hydrogenated carbon nanotube gel (HS-SWCNT)
[0083] Meanwhile, Example 1 is different in that single-walled carbon nanotubes are used instead of multi-walled carbon nanotubes.
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