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A kind of preparation method of nano titanium dioxide/nanometer zinc oxide composite powder material

A nano-titanium dioxide and nano-zinc oxide technology, applied in the field of nanomaterials, can solve the problems of different shielding ability, poor UVA shielding effect, unsatisfactory shielding effect, etc., and achieve the effect of low cost, easy reaction control, and changing surface properties.

Active Publication Date: 2018-01-16
苏州远略知识产权运营有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Nano-zinc oxide and nano-titanium dioxide are two important and widely used inorganic UV sunscreens, but their shielding ability to UVA and UVB is different. The effect of nano-titanium dioxide on blocking UVB is very good, but the shielding effect on UVA is not good. ; The shielding effect of nano-zinc oxide on UVB is not ideal, but its effect of blocking UVA is better than that of nano-titanium dioxide

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] 1) Weigh 18.35g of zinc acetate and 34.03g of butyl titanate and dissolve them in 183.5mL of absolute ethanol, stir well to prepare a mixed solution.

[0021] 2) Evaporate the mixed solution to dryness in a water bath at 80°C, then put it in an oven for drying, then put it in a muffle furnace, and heat it up to 500°C for 2 hours under oxygen-enriched conditions to obtain Composite powder.

[0022] 3) Weigh 5g of composite powder, mix with 3g of stearic acid, 0.04g of carboxymethyl cellulose, and 40mL of cycloethane and ball mill for 2 hours.

Embodiment 2

[0024] 1) Weigh 18.35g of zinc acetate and 34.03g of butyl titanate and dissolve them in 183.5mL of absolute ethanol, stir well to prepare a mixed solution.

[0025] 2) Evaporate the mixed solution to dryness in a water bath at 65°C, then put it in an oven for drying, then put it into a muffle furnace, and heat it up to 500°C for 1 hour under oxygen-enriched conditions to obtain Composite powder.

[0026] 3) Weigh 5g of composite powder, mix with 2.5g of stearic acid, 0.25g of carboxymethyl cellulose, and 25mL of cycloethane and ball mill for 1 hour.

Embodiment 3

[0028] 1) Weigh 18.35g of zinc acetate and 34.03g of butyl titanate and dissolve them in 183.5mL of absolute ethanol, stir well to prepare a mixed solution.

[0029] 2) Evaporate the mixed solution to dryness in a water bath at 95°C, then place it in an oven for drying, then put it into a muffle furnace, and heat it up to 500°C for 3 hours under oxygen-enriched conditions to obtain Composite powder.

[0030] 3) Weigh 5g of composite powder, mix with 4g of stearic acid, 0.5g of carboxymethyl cellulose, and 50mL of cycloethane and ball mill for 3 hours.

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Abstract

The invention belongs to the technical field of nano-materials and relates to a preparation method of a nanometer titanium dioxide / nanometer zinc oxide composite powder material. The preparation method comprises 1, dissolving zinc acetate and butyl titanate in absolute ethanol and carrying out uniform stirring to obtain a mixed solution, 2, carrying out water bath distillation drying on the mixed solution, putting the dried materials into an oven, carrying out drying, and roasting the dried materials at a high temperature through a muffle furnace to obtain composite powder, and 3, carrying out mixing ball milling on the composite powder, stearic acid, carboxymethylcellulose and cyclohexane for 1 to 3 hours. Through combination of nanometer titanium dioxide and nanometer zinc oxide, UVA and UVB in sunlight ultraviolet light are effectively shielded.

Description

technical field [0001] The invention belongs to the technical field of nanometer materials, and in particular relates to a method for preparing a nanometer titanium dioxide / nanometer zinc oxide composite powder material. Background technique [0002] The ultraviolet rays radiated by sunlight can be divided according to their wavelengths: long-wave ultraviolet UVA with a wavelength of 320-400nm, medium-wave ultraviolet UVB with a wavelength of 290-320nm, and short-wave ultraviolet UVC with a wavelength of 200-290nm. The research results show that although UVA, which accounts for 91% of the sun's ultraviolet rays, does not cause as intense a reaction as UVB, it has strong penetration, and 35-50% of it can reach the dermis, causing damage to the fibrous tissue in the dermis, resulting in tingling and skin relaxation. And tanning, is one of the main causes of skin photoaging and skin cancer. UVC has been basically absorbed in the outer layer of the atmosphere. [0003] Nano-zi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G23/08C01G9/03A61K8/27A61K8/29A61Q17/04
CPCA61K8/27A61K8/29A61K2800/413A61Q17/04C01G9/03C01G23/08
Inventor 杨阳
Owner 苏州远略知识产权运营有限公司