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Preparation method of modified nano zinc oxide

A nano-zinc oxide and modification technology, which is applied in the field of preparation of modified nano-zinc oxide, can solve the problems of low activity and limited enhancement effect of nano-zinc oxide, and achieve excellent activity, improved reaction activity, and increased specific surface area.

Inactive Publication Date: 2021-01-08
ANHUI JINHUA ZINC OXIDE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the nano-zinc oxide prepared by the prior art has low activity, especially in the field of rubber additives, and the reinforcing effect is limited.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0020] A method for preparing modified nano zinc oxide, comprising the following steps:

[0021] (1) Add zinc sulfate to deionized water, heat to 80°C, and stir at 500r / min for 40min to obtain zinc sulfate solution;

[0022] (2) Put the zinc sulfate solution in the reaction kettle, then add potassium carbonate to the zinc sulfate solution, stir and react for 3 hours, and filter the reaction precipitate;

[0023] (3) Clean and dry the reaction precipitate, then add it to the silane coupling agent solution, ultrasonically treat it for 10-15 minutes, then carry out suction filtration, dry it to constant weight, then clean it, and then dry it , to obtain the modified reaction material;

[0024] (4) Put the modified reaction material in a resistance furnace for calcination for 40-50 minutes, and then cool it down to room temperature naturally.

[0025] As a further technical solution: the mass fraction of the zinc sulfate solution is 5.8-6%.

[0026] As a further technical schem...

Embodiment 1

[0033] A method for preparing modified nano zinc oxide, comprising the following steps:

[0034] (1) Add zinc sulfate to deionized water, heat to 80°C, and stir at 500r / min for 40min to obtain zinc sulfate solution;

[0035] (2) Put the zinc sulfate solution in the reaction kettle, then add potassium carbonate to the zinc sulfate solution, stir and react for 3 hours, and filter the reaction precipitate;

[0036] (3) Wash and dry the reaction precipitate, then add it to the silane coupling agent solution, ultrasonically treat it for 10 minutes, then perform suction filtration, dry it to constant weight, then wash it, and then dry it to obtain Modified reaction material;

[0037] (4) Put the modified reaction material in a resistance furnace for calcination for 40-50 minutes, and then cool it down to room temperature naturally.

[0038] As a further technical solution: the mass fraction of the zinc sulfate solution is 5.8%.

[0039] As a further technical scheme: the zinc sul...

Embodiment 2

[0045] A method for preparing modified nano zinc oxide, comprising the following steps:

[0046] (1) Add zinc sulfate to deionized water, heat to 80°C, and stir at 500r / min for 40min to obtain zinc sulfate solution;

[0047] (2) Put the zinc sulfate solution in the reaction kettle, then add potassium carbonate to the zinc sulfate solution, stir and react for 3 hours, and filter the reaction precipitate;

[0048] (3) Wash and dry the reaction precipitate, then add it to the silane coupling agent solution, ultrasonically treat it for 15 minutes, then perform suction filtration, dry it to constant weight, then wash it, and then dry it to obtain Modified reaction material;

[0049] (4) Put the modified reaction material in a resistance furnace for calcination for 50 minutes, and then cool it down to room temperature naturally.

[0050] As a further technical solution: the mass fraction of the zinc sulfate solution is 6%.

[0051] As a further technical scheme: the zinc sulfate ...

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Abstract

The invention discloses a preparation method of modified nano zinc oxide, and relates to the technical field of zinc oxide, wherein the preparation method comprises the following steps: (1) adding zinc sulfate into deionized water, heating to 80 DEG C, and stirring for 40 minutes at a rotating speed of 500 r / min to obtain a zinc sulfate solution; (2) putting the zinc sulfate solution into a reaction kettle, then adding potassium carbonate into the zinc sulfate solution, stirring to react for 3 hours, and filtering a reaction precipitate; (3) cleaning and drying the reaction precipitate, addingthe reaction precipitate into a silane coupling agent solution, carrying out ultrasonic treatment for 10-15 minutes, carrying out suction filtration, drying to constant weight, cleaning, and drying to obtain a modified reaction material; and (4) placing the modified reaction material in a resistance furnace, calcining for 40-50 minutes, naturally cooling to room temperature, and thus obtain the product. The modified nano-zinc oxide particles prepared by the method disclosed by the invention have a relatively high specific surface area and can show excellent activity.

Description

technical field [0001] The invention belongs to the technical field of zinc oxide, in particular to a preparation method of modified nanometer 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 ultraviolet light shieldi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G9/02B82Y40/00
CPCC01G9/02B82Y40/00C01P2006/12
Inventor 刘艺
Owner ANHUI JINHUA ZINC OXIDE CO LTD