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A preparation method of light-color doped nano-conductive zinc oxide powder

A nano-zinc oxide, conductive powder technology, applied in the direction of zinc oxide/zinc hydroxide, nanotechnology, nanotechnology, etc., can solve the problem that the conductive zinc oxide powder is not applied, the nanometer functional material cannot be applied, and the particle size is in the micrometer. To solve the problems of grade and other issues, to achieve the effect of low production cost, high purity and uniform particle size

Active Publication Date: 2017-03-29
仙居弘嘉新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, although the preparation methods of conductive zinc oxide powder include co-precipitation method, ultrasonic template method, solid-phase method, etc., these methods all require a key step-sintering, and the sintering is carried out under a high-temperature reducing atmosphere, so that zinc oxide With gray color but not enough whiteness, calcination at high temperature will also lead to grain growth
The cost of zinc oxide conductive powder prepared by vapor phase method is relatively low, but the particle size is basically in the micron level, which cannot be applied in the field of nano functional materials
The above preparation methods generally have complex processes, which limits further production applications
However, the wet chemical method, which is widely used in the field of inorganic material preparation to obtain better product dispersion properties, has never been applied to the preparation of conductive zinc oxide powder.

Method used

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  • A preparation method of light-color doped nano-conductive zinc oxide powder

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Configure 100ml of 0.1mol / L zinc nitrate solution;

[0024] Add 0.1wt% aluminum sulfate to the solution to form solution A;

[0025] Configure 100ml of 0.1mol / L ammonia solution B;

[0026] Mix solution A and solution B evenly and stir for 0.5;

[0027] The above solution was transferred to a stainless steel autoclave lined with polytetrafluoroethylene, and hydrothermally reacted at 120 degrees Celsius for 6 hours. After the reaction, the precipitated product was washed three times with deionized water, and then dried to obtain the target light-colored aluminum-doped nano-zinc oxide conductive powder.

Embodiment 2

[0029] Configure 0.1mol / L zinc nitrate solution;

[0030] Add 0.5wt% aluminum nitrate to the solution to form solution A;

[0031] Configure 0.1mol / L urea solution B 200ml;

[0032] Mix solution A and solution B evenly and stir for 2 hours;

[0033] The above solution was transferred to a polytetrafluoroethylene-lined stainless steel autoclave for hydrothermal reaction at 150°C for 8 hours. After the reaction, the precipitated product was washed three times with deionized water, and then dried to obtain the target light-colored aluminum-doped nano-zinc oxide conductive powder.

[0034] The particle diameter of the obtained powder is 70-100 nm, the whiteness is 75, and the electrical conductivity is 110Ω·cm.

Embodiment 3

[0036] Configure 0.1mol / L zinc acetate solution;

[0037] Add 0.2wt% gallium nitrate solution to the solution to form solution A;

[0038] Configure 0.1mol / L urotropine solution B 400ml;

[0039] Mix solution A and solution B evenly and stir for 2 hours;

[0040] The above solution was transferred to a stainless steel autoclave lined with polytetrafluoroethylene, and hydrothermally reacted at 200 degrees Celsius for 6 hours. After the reaction, the precipitated product was washed three times with deionized water, and then dried to obtain the target light-colored gallium-doped nano-zinc oxide conductive powder.

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Abstract

The invention relates to a preparing method for light-color doping nanometer zinc oxide electro-conductive powder. The light-color doping nanometer zinc oxide electro-conductive powder has the advantages of being high in purity, light in color, small in grain size, good in dispersity and electrical conductivity and the like. The preparing method includes the following specific steps that a zinc solution with aluminum or gallium or tin is prepared; then the solution is added into alkali solutions such as ammonia water, urotropin or urea, and the light-color doping nanometer zinc oxide electro-conductive powder is obtained through one-step hydrothermal treatment. According to the preparing method, a liquid chemistry method is adopted for preparing, the preparing method is free of environmental pollution, protecting roasting carried out through reducibility gas is avoided, the technology and the process are simple, the adjustable ranges of parameters are wide, repeatability is high, production cost is low, and industrial grade production can be achieved. The prepared light-color doping nanometer zinc oxide electro-conductive powder can be widely applied to multiple fields such as solar cells, photoelectric devices, anti-static terrace paint and anti-corona coatings.

Description

technical field [0001] The invention belongs to the technical field of zinc oxide conductive powder materials, and in particular relates to a preparation method of light-color doped nano zinc oxide conductive powder. Background technique [0002] With the rapid development of the electronics industry and the improvement of people's living standards, conductive powder is mainly used as a functional filler in the form of conductive fillers in the preparation of polymer materials, plastics, coatings, fibers, etc., with conductivity, Antistatic, anti-electromagnetic shielding and other properties have begun to attract widespread attention. At present, the commonly used conductive powders mainly include: metal powders such as silver, nickel, etc., non-metallic powders such as graphite, carbon black, etc., metal oxides such as zinc oxide, antimony oxide, etc., and composite powders and iodides. Such as SnO 2 -In 2 o 3 Coated mica or inorganic mineral powder, copper iodide, et...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G9/02B82Y30/00
CPCC01G9/02C01P2004/03C01P2004/64C01P2006/40C01P2006/65
Inventor 何丹农林琳葛美英章龙陈超张春明金彩虹
Owner 仙居弘嘉新材料科技有限公司