Preparation method of high-activity nano zinc oxide
A nano-zinc oxide, high-activity technology, applied in the direction of zinc oxide/zinc hydroxide, nanotechnology, etc., can solve the problems of high preparation cost and incompatibility, and achieve the effects of short reaction period, difficult to agglomerate, and simple process
Active Publication Date: 2018-04-20
河北科迈新材料科技有限公司
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[0006] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a preparation method of highly active nano-zinc oxide, to solve the problems of incompatibility with organic components and high preparation costs in the preparation process of nano-zinc oxide
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[0032] The technical solution of the present invention will be further described in detail below in conjunction with specific examples, but the protection scope of the present invention is not limited to the following description.
[0033] A preparation method of highly active nano-zinc oxide, comprising the steps of:
[0034] S1 Dissolving: Dissolving 8-12 parts by weight of zinc chloride in 15-20 parts by weight of mixed solution I of 20-30 parts by weight, stirring and dissolving at room temperature;
[0035] S2 precipitation: slowly add 10-14 parts by weight of 50% sodium hydroxide to the solution in step S1, stir and react at room temperature for 60-80min, centrifuge to remove the supernatant to obtain a white precipitate;
[0036] S3 post-treatment: filter the white precipitate in step S2, wash with deionized water 2-3 times, dissolve the obtained filter cake in mixed solution II, make a suspension with a mass concentration of 20-30%, add additives, Grind in a grinder f...
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Abstract
The invention relates to a preparation method of high-activity nano zinc oxide. The preparation method comprises the following steps: S1, dissolution, dissolving 8 to 12 parts by weight of zinc chloride into a mixed solution I which is prepared from 20 to 30 parts by weight of a solution and 15 to 20 parts by weight of a solution, stirring at the room temperature, and dissolving; S2, precipitation: slowly adding 10 to 14 parts by weight of 50 percent of sodium hydroxide in the solution obtained in S1, stirring at the room temperature, reacting for 60 to 80 minutes, and centrifugally removing supernatant, thus obtaining white precipitate; S3, aftertreatment: filtering the white precipitate obtained in S2, washing 2 to 3 times by using deionized water, dissolving obtained filter cake into amixed solution II, preparing a suspension solution of which the mass concentration is 20 to 30 percent, adding an additive, grinding for 30 minutes in a grinding machine, filtering, and drying the obtained filter cake under 200 to 220 DEG C, thus obtaining the nano zinc oxide. The preparation method disclosed by the invention has the advantages that the particle size is small, the dispersibility is good, the purity is high, and the preparation method is simple.
Description
technical field [0001] The invention relates to the technical field of nano-zinc oxide preparation, in particular to a preparation method of highly active nano-zinc oxide. Background technique [0002] Nano-zinc oxide is a multifunctional new inorganic material, and its particle size is about 1-100 nanometers. Due to the miniaturization of crystal grains, the surface electronic structure and crystal structure change, resulting in surface effects, volume effects, quantum size effects and macroscopic tunnel effects that macroscopic objects do not have, as well as high transparency and high dispersion. In recent years, it has been found that it exhibits many special functions in catalysis, optics, magnetism, mechanics, etc., making it have important application value in many fields such as ceramics, chemical industry, electronics, optics, biology, medicine, etc. Specificity and use of comparisons. Nano-zinc oxide can be used in the fields of textiles and coatings for ultravio...
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IPC IPC(8): C01G9/02B82Y40/00
CPCB82Y40/00C01G9/02C01P2004/61C01P2006/12C01P2006/80
Inventor 陆建
Owner 河北科迈新材料科技有限公司