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Superfine zinc oxide composites and its prepn.

A technology of zinc oxide and composites, applied in the field of ultrafine zinc oxide composites, which can solve the problems of large specific surface area and surface energy, hindering the performance of ultrafine powders, and small particle sizes of ultrafine powders to achieve good dispersion , The preparation method is economical and practical, and the effect of small particle size

Inactive Publication Date: 2005-01-12
骆天荣
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the small particle size of ultrafine powder, the specific surface area and surface energy are very large, it is easy to agglomerate during use, and the existence of agglomeration will greatly hinder the full performance of ultrafine powder. Therefore, research on ultrafine powder The dispersion and stability of the body will be the premise and basis for further improving the performance of nanomaterials.

Method used

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  • Superfine zinc oxide composites and its prepn.

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] ①Preparation method of nanoscale and submicron ultrafine zinc oxide composites:

[0018] This example adopts the salt of silver as additive component to prepare superfine zinc oxide compound, takes by weighing 1%, or 3%, or 7%, or 10% (weight percent) relative to the content of zinc oxide in the zinc ammonia complex solution ) of silver nitrate, or silver sulfate, or silver chloride; wherein, the silver nitrate or silver sulfate is in the following ratio: silver nitrate (or silver sulfate): water=1:1 (or 1:5, or 1:10, or 1:7.5, or 1:2.5) (weight ratio), dissolved in deionized water, added to the zinc ammonia complex solution in the ammonia distillation equipment; or adding silver chloride directly to the ammonia distillation equipment In the zinc ammonia complex solution. Then, start to stir and heat up. When the temperature rises to 80-90° C., constant-temperature ammonia distillation is completed when the content of ammonia in the solution system is less than 5% (per...

Embodiment 2

[0022] ①Preparation method of nanoscale and submicron ultrafine zinc oxide composites:

[0023]In this example, copper salts are used as additive components to prepare ultrafine zinc oxide composites, and 0.1%, 5%, or 10% (weight percent) of copper nitrate, Or copper sulfate, or copper chloride; they are in the following ratio: copper nitrate (copper sulfate, or copper chloride): water = 1:1 (or 1:5, or 1:10, or 1:7.5, Or 1: 2.5) (weight ratio), be dissolved in deionized water, then add in the zinc-ammonia complex solution in the ammonia distillation equipment, all the other technological procedures and operating methods are identical to embodiment 1, can make superfine zinc oxide Complex.

[0024] ② Nanoscale and submicron ultrafine zinc oxide composites:

[0025] The ultra-fine zinc oxide composite with copper salt added by the preparation method ① of Example 2 is observed with a H-600 transmission electron microscope: it has good dispersion and has excellent functions.

Embodiment 3

[0027] ①Preparation method of nanoscale and submicron ultrafine zinc oxide composites:

[0028] In this example, aluminum salts are used as additive components to prepare ultrafine zinc oxide composites, and 2%, or 6%, or 8% (weight percent) of the zinc oxide content in the zinc-ammonia complex solution is weighed. Aluminum nitrate, or aluminum sulfate, they are in the following ratio: aluminum nitrate (or aluminum sulfate): water = 1: 1 (or 1: 5, or 1: 10, or 1: 7.5, or 1: 2.5) (weight ratio), respectively dissolved in deionized water, added to the zinc-ammonia complex solution in the ammonia distillation equipment, and the rest of the process regulations and operating methods are the same as in Example 1, and the ultrafine zinc oxide composite is obtained.

[0029] ② Nanoscale and submicron ultrafine zinc oxide composites:

[0030] The ultrafine zinc oxide composite with added aluminum salt prepared by the preparation method of ① in Example 3, the composite was observed wit...

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Abstract

The present invention belongs to the field of nanometer material producing technology, and is a nanometer-class and sub-micron class superfine zinc oxide composite and its preparation method. Different salts of some metal, such as Ag, Cu, Ce, or Ti, silicate or aluminate is selected and added to the ammonia evaporation process of producing zinc oxide, and a suitable technological process is adopted in preparing superfine zinc oxide compound. The compound has good dispersivity, strong function, small and homogeneous size, and economical and practical preparation process. The prepared superfine zinc oxide power may be used widely in rubber, ceramic, plastic and daily-use chemical and other industries.

Description

1. Technical field [0001] The nanoscale and submicron ultrafine zinc oxide compound disclosed by the present invention and its preparation method belong to the technical field of nanomaterial production, and specifically relate to the addition of a small amount of different components in the process of producing ultrafine zinc oxide by alkali method, To obtain an ultrafine zinc oxide compound with improved performance and improved function, which also involves its preparation process. 2. Background technology [0002] Ultrafine zinc oxide powder refers to the powder with a particle size of less than 1 μm, which can be widely used in industries such as rubber, ceramics, textiles, and daily chemicals. As the particle size decreases, the specific surface area gradually increases, gradually showing the active effect that conventional powders do not have, especially when the particle size is less than 100nm, that is, when nanoparticles are formed, due to the quantum size effect, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/453C04B35/624
Inventor 骆天荣赵永红郭建平乔爱平蒋素萍
Owner 骆天荣