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Nano-zinc oxide coated sericite powder composite material and preparation method thereof

A nano-zinc oxide, sericite powder technology, applied in chemical instruments and methods, cosmetic preparations, cosmetics and other directions, can solve the problems of affecting the use effect, product appearance, application restrictions, etc., to achieve good anti-ultraviolet performance, good potential Application value, the effect of stable product quality

Inactive Publication Date: 2014-09-03
ANHUI HENGHAO SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the natural color of sericite is off-white and not easy to change, which limits its application in many aspects. For example, adding sericite to white paint will have a great impact on the appearance of the product; whitening cosmetics Adding in will also affect the use effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A kind of preparation method of nano-zinc oxide coated sericite powder composite material, its concrete method is as follows:

[0025] Weigh 100g of 800 mesh wet-process sericite powder, add 250ml of water and stir evenly; dissolve 10g of zinc sulfate in 50ml of water; slowly drop the zinc sulfate solution into the reactor filled with wet-process sericite powder while stirring After continuing to stir for 1 hour, add 2.7g of calcium hydroxide; continue to stir for 30 minutes, filter, and dry at 100°C to obtain a wet-process sericite powder composite material coated with nano-zinc oxide.

Embodiment 2

[0027] Weigh 100g of 800 mesh wet-process sericite powder, add 250ml of water and stir evenly; dissolve 10g of zinc sulfate in 50ml of water; slowly drop the zinc sulfate solution into the reactor filled with wet-process sericite powder while stirring Add 2.7g of calcium oxide after continuous stirring for 1 hour; continue stirring for 30 minutes, filter, and dry at 100°C to obtain a wet-process sericite powder composite material coated with nano-zinc oxide.

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Abstract

The invention discloses a sericite / nano-zinc oxide composite material and a preparation method thereof. The composite material is characterized in that the surface of sericite powder is coated with nano-zinc oxide. The preparation method comprises the following step: adding calcium hydroxide or calcium oxide into a mixed system of the sericite powder and zinc sulfate solution so as to directly obtain the nano-zinc oxide coated sericite powder composite material. According to the method, the sericite which is taken as a base material is a natural mineral, so that the raw material is easily available, free of pollution and low in cost; the preparation process is simple, safe, reliable and easy to control; the obtained composite material is stable in quality, and has the good dispersibility in an organic solvent and also has the excellent ultraviolet resistance and the excellent antibacterial and deodorant performance. Thus, the composite material can be applied to the field of coatings, cosmetics and the like. The method has a good potential application value in the field of synthesis of the composite material or other related sciences.

Description

technical field [0001] The invention relates to a nano zinc oxide coated sericite powder composite material and a preparation method thereof. Background technique [0002] Sericite is a subspecies of muscovite, a silicate mineral with a layered structure, and the structure consists of a compound silicon-oxygen layer composed of two layers of silicon-oxygen tetrahedron sandwiching a layer of aluminum-oxygen octahedron. The appearance is translucent, rich in texture and silky luster. Cleavage can completely form an extremely thin sheet structure with a large aspect ratio (up to 100 or more). This layered structure with a very high aspect ratio makes sericite soft and smooth, and can be used in In cosmetics, it enhances its effect of smoothing and refreshing the skin. [0003] The standard chemical structural formula of sericite is KAl2[AlSi3O10](OH)2. It belongs to the monomorphic system. The flake sericite has a high degree of orientation in the coating film, and is gener...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/40C09C3/06A61K8/27A61K8/26A61Q17/04C09D7/12
Inventor 万斌关洪勇夏玉明陈静李青
Owner ANHUI HENGHAO SCI & TECH
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