Process for preparing nano zinc oxide material

A nano-zinc oxide and sodium hydroxide technology, applied in the direction of zinc oxide/zinc hydroxide, etc., can solve the problems of difficult control of reaction conditions, fast crystal nucleus growth process, insufficient ball milling time, etc., and achieve controllable reaction conditions and simple equipment , the effect of high yield

Inactive Publication Date: 2003-08-06
大连创博科技发展有限公司
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Problems solved by technology

But there are also disadvantages: since the reactant phase diffusion and chemical reaction will occur through ball milling, it will inevitably bring equal opportunities to the generation of crystal nuclei and the growth of crystal nuclei, so two situations will occur: one , the ball milling time is insufficient, resulting in incomplete reaction
Second, the ball milling is excessive, and the crystal nucleus growth process is fast, resulting in the disadvantage that the reaction conditions are difficult to control

Method used

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Embodiment Construction

[0008] Below in conjunction with embodiment the present invention will be further described,

[0009] According to the chemical composition sodium hydroxide NaOH: zinc nitrate Zn (NO 3 ) 2 = 4.8:1.8, mix at room temperature, grind and mix for 40 minutes, heat to 380°C for thermal decomposition, and get zinc oxide NZnONO 3 , sodium nitrate NaNO 3 The mixed solution was cooled to 70° C., washed with 5% deionized water, precipitated and filtered to obtain a filter cake containing ZnO. Cool the filter cake to 35°C, add 10% ethanol to wash with alcohol for 5 hours, and filter under normal pressure, add an appropriate amount of CaCO to the filtrate 3 , The alcohol washed cake was dried at 45°C for 2 hours, and then calcined at 750°C to obtain nano-zinc oxide powder material.

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Abstract

The present invention uses gas-solid phase reaction method as main preparation measure, uses Zn(NO3)2 and NaOH as main raw material and adopts the following stesp: grinding and mixing them at normal temp., making the undergo the process of thermal decomposition to obtain mixed solution, adding deionized water, washing with water, adding alcohol and washing with alcohol, filtering, drying filter cake, roasting so as to obtain the nano zinc oxide powder material. Said nano zinc oxide material can be used in the products of fibre, glass, ceramic and cosmetics, fields, and can greatly change the light, electric and magnetic properties of these original products.

Description

technical field [0001] The invention relates to a nano zinc oxide material and a preparation method thereof. Background technique [0002] Nano-zinc oxide material is a kind of nano-scale metal oxide powder, the grain size is below 100nm, the granular shape is spherical, and the appearance color is light yellow powder. It has optical, electrical, Magnetic, thermal, sensitive and other properties, widely used in the rubber industry to improve the scorch performance of rubber products, improve the wear resistance of rubber products, used in the ceramic industry, reduce the firing temperature of ceramic products, and produce sterilization and self-cleaning effects , used in the glass industry, shielding ultraviolet rays, but also can be sterilized, self-cleaning, used in textile and daily chemical industry products, with antibacterial, disinfection, deodorization functions. In addition, nano-zinc oxide has extremely important applications in many fields such as chemical cataly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G9/02C01G9/03
Inventor 崔国吉温嘉琪
Owner 大连创博科技发展有限公司
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