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Preparation method of nano zinc oxide

A technology of nano-zinc oxide and mixed liquid, applied in the direction of zinc oxide/zinc hydroxide, nanotechnology, etc., can solve the problems of environmental pollution, uneven particle size distribution, high energy consumption, etc., and achieve broad application range and small average particle size , the effect of large specific surface area

Pending Publication Date: 2021-02-09
安徽泰龙锌业有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still disadvantages such as pollution to the environment during the waste liquid treatment process, easy particle agglomeration, and easy mixing of impurities during the post-treatment process of the sediment.
The sol-gel method, seed crystal method, and microemulsion method have problems such as complicated operation process, long reaction cycle, small output, and difficult handling of by-products, making it difficult to scale up mass production
Through the hydrothermal method, solvothermal method and microwave-assisted method, the morphology of the prepared nanoparticles can be effectively controlled by adjusting the parameters of the reaction system, but there is still a high energy consumption in the preparation process, and the high temperature and high pressure reaction system requires high equipment requirements. , resulting in defects such as uneven particle size distribution
The sample prepared by the gas phase method has good regularity and uniform particle distribution, but in the preparation process, the precursor needs to be gasified or the carrier gas is used as the reaction medium, and the reaction parameters need to be strictly controlled, which makes the reaction process more complicated. , the output is low, the energy consumption is high, and it is difficult to expand the production of the chemical industry

Method used

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Examples

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Effect test

preparation example Construction

[0032] A preparation method of nano-zinc oxide, comprising the steps of:

[0033] (1) Preparation of mixture A:

[0034] Mix the hydroxylated styrene-butadiene-styrene block copolymer and N,N-dimethylformamide according to the weight volume ratio of 1g:900~1000mL and add them into the high-pressure tank, heat and keep in the high-pressure tank The temperature is 100~110℃. After the hydroxylated styrene-butadiene-styrene block copolymer is completely dissolved, the ultrasonic probe is immersed in the solution 1~2cm below the liquid surface, and connected to the DC magnetic field for ultrasonic-magnetic field coupling. Processing, control the ultrasonic frequency to 90~100kHz, the power of the magnetic field to 900~1000W, keep the temperature in the high-pressure tank at 90~110°C during the ultrasonic-magnetic field coupling processing, and the ultrasonic-magnetic field coupling processing time is 30~40min after completion Get mixed solution A for later use;

[0035] (2) Prepa...

Embodiment 1

[0047] A preparation method of nano-zinc oxide, comprising the steps of:

[0048] (1) Preparation of mixture A:

[0049]Mix the hydroxylated styrene-butadiene-styrene block copolymer and N,N-dimethylformamide according to the weight volume ratio of 1g:900mL and add them into the high-pressure tank, heat to maintain the temperature in the high-pressure tank 100°C, after the hydroxylated styrene-butadiene-styrene block copolymer is completely dissolved, immerse the ultrasonic probe 1cm below the liquid surface of the solution, and connect it to a DC magnetic field to perform ultrasonic-magnetic field coupling treatment to control the frequency of the ultrasonic wave The power of the magnetic field is 90kHz, the power of the magnetic field is 900W, the temperature in the high-pressure tank is kept at 90°C during the ultrasonic-magnetic field coupling treatment, and the time for the ultrasonic-magnetic field coupling treatment is 30min.

[0050] (2) Preparation of mixture B:

[...

Embodiment 2

[0061] A preparation method of nano-zinc oxide, comprising the steps of:

[0062] (1) Preparation of mixture A:

[0063] Mix the hydroxylated styrene-butadiene-styrene block copolymer and N,N-dimethylformamide according to the weight volume ratio of 1g:950mL, then add them into the high-pressure tank, and heat to maintain the temperature in the high-pressure tank After the hydroxylated styrene-butadiene-styrene block copolymer is completely dissolved, immerse the ultrasonic probe at 1.5cm below the liquid surface of the solution, and connect it to a DC magnetic field for ultrasonic-magnetic field coupling treatment to control the ultrasonic wave. The frequency is 95kHz, the power of the magnetic field is 950W, the temperature in the high-pressure tank is kept at 100°C during the ultrasonic-magnetic field coupling treatment, and the time for the ultrasonic-magnetic field coupling treatment is 35 minutes.

[0064] (2) Preparation of mixture B:

[0065] Add zinc acetate into th...

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Abstract

The invention discloses a preparation method of nano zinc oxide, which belongs to the technical field of inorganic material processing, and comprises the following steps: (1) preparing a mixed solution A; (2) preparing a mixed solution B; (3) high-speed centrifugal treatment; (4) cryogenic treatment; (5) microwave electron beam coupling treatment; and (6) mechanical grinding treatment. The nano-zinc oxide prepared by the method disclosed by the invention is small in average particle size, large in specific surface area and high in density, the activity of the nano-zinc oxide is improved to a certain extent, the quality of the nano-zinc oxide is improved, and the application range of the nano-zinc oxide is widened.

Description

technical field [0001] The invention belongs to the technical field of inorganic material processing, and in particular relates to a preparation method of nanometer zinc oxide. Background technique [0002] Nano Zinc Oxide (ZnO), with a particle size between 1-100nm, is a high-end high-function fine inorganic product that exhibits many special properties, such as non-migration, fluorescence, piezoelectricity, absorption and scattering of ultraviolet rays Capability, etc., using its wonderful properties in light, electricity, magnetism, sensitivity, etc., can manufacture gas sensors, phosphors, varistors, ultraviolet shielding materials, image recording materials, piezoelectric materials, varistors, high-efficiency catalysts, and magnetic materials. and plastic films, etc. Microscopic changes Many people do not see the excellent properties of nano-materials. Through practice, nano-zinc oxide is now more and more widely used in various fields such as rubber for its excellent ...

Claims

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Application Information

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IPC IPC(8): C01G9/02B82Y40/00
CPCC01G9/02B82Y40/00C01P2004/64C01P2006/12C01P2006/10
Inventor 丁宝文
Owner 安徽泰龙锌业有限责任公司
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