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Titanium dioxide nanocomposite material and preparation method and application thereof

A nanocomposite material, titanium dioxide technology, applied in the direction of nanotechnology, nanotechnology, microsphere preparation, etc., can solve the problems of not being able to effectively improve the photochemical activity, not be able to effectively improve the dispersion, not be able to form a dense coating layer, etc., to reduce the photochemical Effects of active, natural color and natural skin whiteness

Active Publication Date: 2019-06-07
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the Al 2 o 3 , SiO 2 , FeCl 3 and other inorganic materials coated TiO 2 , it is easy to make TiO 2 The particle color is red, the whiteness is reduced, and the TiO2 cannot be effectively improved 2 Dispersion in organic media of cosmetics or wood surface anti-fading emulsions, while organic materials such as polymethyl methacrylate are coated with TiO 2 When used, only a single-layer coating can be formed, and a dense coating layer cannot be formed, and the photochemical activity cannot be effectively improved. The organic coating film in the anti-fading emulsion on the surface of cosmetics or wood is still easy to powder
In addition, in the prior art, by adding oxidative inorganic waterproof components and organic waterproof components such as polyurethane, the nano-TiO 2 surface properties, thereby preparing modified nano-titanium dioxide with good hydrophobic effect, but the inorganic component in this prior art is AlN 3 , V 2 o 5 , SiO 2 and other additives, with TiO 2 There is a large difference in the refractive index, and the whiteness of the skin cannot be made natural when added to cosmetics. At the same time, it is difficult to fully mix various ingredients by stirring and grinding.

Method used

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  • Titanium dioxide nanocomposite material and preparation method and application thereof
  • Titanium dioxide nanocomposite material and preparation method and application thereof
  • Titanium dioxide nanocomposite material and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0037] A titanium dioxide nanocomposite material comprising TiO 2 Nanoparticles, TiO 2 Nanoparticles coated with ZrO 2 Inorganic layer forming TiO 2 @ZrO 2 Core-shell nanoparticles, TiO 2 @ZrO 2 The surface of the core-shell nanoparticle is coated with a surfactant organic film layer, that is, TiO 2 @ZrO 2 The surface of the core-shell nanoparticle is modified with polyethylene glycol 400.

[0038] In the titanium dioxide nanocomposite material of this embodiment, TiO 2 The mass percentage of nanoparticles is 95.3%, ZrO 2 The mass percentage of the inorganic film layer is 4.1%, and the mass percentage of polyethylene glycol 400 is 0.6%.

[0039] In the titanium dioxide nanocomposite material of this embodiment, TiO 2 The crystal form of nanoparticles is rutile.

[0040] The titanium dioxide nanocomposite material of this embodiment has a whiteness of 95%, a primary particle diameter of 25nm, and a specific surface area of ​​77.9m 2 / g.

[0041] A preparation metho...

Embodiment 2

[0054] An application of a titanium dioxide nanocomposite material in cosmetics, specifically making the titanium dioxide nanocomposite material prepared in Example 1 of the present invention into sunscreen, comprising the following steps:

[0055] Experimental group: phase A (in parts by mass, phase A includes 5 parts of lanolin, 4 parts of stearic acid, 2.5 parts of white petrolatum, 0.05 parts of propyl p-hydroxybenzoate, 8 parts of isooctyl salicylate), Phase B (in parts by mass, Phase B includes 70.3 parts of water, 5 parts of 1,2-propylene glycol, 1 part of triethanolamine, 0.1 part of methyl p-hydroxybenzoate, 0.05 part of disodium EDTA, 4 parts of Titanium dioxide nanocomposites) were heated to 80°C, and stirred continuously until all the ingredients were dissolved (except TiO 2 Outside), add phase A to phase B while stirring in a disperser, disperse evenly, cool to room temperature, and form a stable sunscreen. Apply the sunscreen lotion evenly on the surface of the ...

Embodiment 3

[0063] A kind of application of titanium dioxide nanocomposite material in wood, be specifically made the titanium dioxide nanocomposite material that makes in the embodiment of the present invention 1 anti-fading emulsion of stained wood, comprises the following steps:

[0064] Experimental group: 97 parts of water-based woodware PU emulsion (in parts by mass), 3 parts of titanium dioxide nanocomposite prepared in Example 1) were uniformly dispersed in a disperser at a speed of 4000r / min to form a stable wood anti-fading emulsion. Apply the wood fade-resistant emulsion evenly on the surface of the stained wood, and let it dry naturally to obtain the stained wood fade-resistant coating.

[0065] Control group 1: TiO prepared in comparative example 1 was added to the above formula 2 Nanoparticles, the other steps are the same.

[0066] Control group 2: the titanium dioxide nanocomposite material prepared in Example 1 was not added to the above formula, and its parts by weight ...

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Abstract

The invention discloses a titanium dioxide nanocomposite material and a preparation method and an application thereof, wherein the titanium dioxide nanocomposite material comprises TiO2 nanoparticles,the surface of the TiO2 nanoparticles is coated with a ZrO2 inorganic film layer to form TiO2@ZrO2 core-shell structure nanoparticles, and the surface is modified with a surfactant. The preparation method comprises preparing TiO2@ZrO2 core-shell structure nanoparticles, mixing with the surfactant solution for jet milling to obtain titanium dioxide nanocomposites. The titanium dioxide nanocomposite material of the invention has the advantages of high whiteness, good weather resistance, good dispersibility and strong ultraviolet absorption capacity, and the preparation method thereof has the advantages of simple process, convenient operation, controllable reaction and the like. As that titanium dioxide nanocomposite material is suitable for the anti-fading emulsion on the surface of cosmetic or wood of an aqueous system, the titanium dioxide nanocomposite material can be widely used in the field of cosmetic and wood, and has good application value and application range.

Description

technical field [0001] The invention belongs to the technical field of nanocomposite materials, and in particular relates to a titanium dioxide nanocomposite material, its preparation method and its application in cosmetics or wood. Background technique [0002] Nano-TiO 2 Due to its excellent chemical stability, thermal stability, high refractive index, gloss and photocatalytic activity, strong whiteness, hiding power and coloring power, good dispersibility and weather resistance, and non-toxic, tasteless and non-toxic Irritant, also has the function of sterilization and deodorization, it is widely used in the field of cosmetics, and has the effect of beauty, whitening and sun protection. Excellent UV absorber. Nano-TiO 2 The anti-ultraviolet ability and its mechanism are related to its particle size: when the particle size is small, it can absorb ultraviolet rays, especially ultraviolet rays (280-320nm) in the mid-wave region for sun protection or anti-fading; when the ...

Claims

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Application Information

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IPC IPC(8): B01J13/02B01J13/22B82Y30/00B82Y40/00A61K8/28A61K8/29A61Q17/04B27K3/00
Inventor 喻胜飞张军罗武生张凯李贤军刘元
Owner CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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