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Preparation method for modified nanometer 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 easy agglomeration, difficult dispersion and poor polymer binding performance of nano-zinc oxide, and achieves easy process, good dispersibility and reduced The effect of agglomeration

Inactive Publication Date: 2019-04-02
YUNCHENG UNIVERISTY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, nano-zinc oxide with high specific surface energy is easy to agglomerate, difficult to disperse in organic media, and has poor binding performance with polymers, which directly affects its actual efficacy.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A preparation method of modified nano zinc oxide, comprising the following steps:

[0023] S1: Immerse the nano-zinc oxide in hydrochloric acid solution, the mass fraction of the hydrochloric acid solution is 0.8%, continue to stir for 30 minutes, the stirring speed is 300r / min, and then filter out the nano-zinc oxide for use;

[0024] S2: Add water to the nano-zinc oxide filtered in step S1, then slowly add barium stearate dispersant, the mass ratio of barium stearate dispersant to nano-zinc oxide is 1:150, heat to 40°C and continue stirring for 10min , the stirring speed is 300r / min, and the obtained mass concentration is a nano-zinc oxide dispersion liquid of 15%;

[0025] S3: Add the nano-zinc oxide dispersion liquid obtained in step S2 into the ultrasonic generator, then add the soaking modified liquid, heat up to 50°C for ultrasonic treatment, the ultrasonic frequency is 60KHz, and ultrasonically treat for 40min to obtain the modified nano-zinc oxide liquid ;

...

Embodiment 2

[0030] A preparation method of modified nano zinc oxide, comprising the following steps:

[0031] S1: Immerse the nano-zinc oxide in hydrochloric acid solution, the mass fraction of the hydrochloric acid solution is 1.2%, continue to stir for 35 minutes, the stirring speed is 350r / min, and then filter out the nano-zinc oxide for use;

[0032] S2: Add water to the nano-zinc oxide filtered in step S1, then slowly add barium stearate dispersant, the mass ratio of barium stearate dispersant to nano-zinc oxide is 1:170, heat to 45°C and continue stirring for 13min , the stirring speed is 400r / min, and the nano-zinc oxide dispersion liquid with a mass concentration of 15-25% is obtained;

[0033] S3: Add the nano-zinc oxide dispersion liquid obtained in step S2 into the ultrasonic generator, then add the soaking modified liquid, heat up to 55°C for ultrasonic treatment, the ultrasonic frequency is 65KHz, and ultrasonically treat for 45 minutes to obtain a modified nano-zinc oxide li...

Embodiment 3

[0038] A preparation method of modified nano zinc oxide, comprising the following steps:

[0039] S1: Immerse the nano-zinc oxide in hydrochloric acid solution, the mass fraction of the hydrochloric acid solution is 1.4%, continue to stir for 40 minutes, the stirring speed is 400r / min, and then filter out the nano-zinc oxide for use;

[0040] S2: Add water to the nano-zinc oxide filtered in step S1, then slowly add barium hardate dispersant, the mass ratio of barium hardate dispersant to nano-zinc oxide is 1:180, heat to 50°C and continue stirring for 15min , the stirring speed is 450r / min, and the nano-zinc oxide dispersion liquid having a mass concentration of 25% is obtained;

[0041] S3: Add the nano-zinc oxide dispersion obtained in step S2 into the ultrasonic generator, then add the soaking modified solution, heat up to 60°C for ultrasonic treatment, the ultrasonic frequency is 70KHz, and ultrasonically treat for 50 minutes to obtain a modified nano-zinc oxide solution ...

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Abstract

The invention discloses a preparation method for modified nanometer zinc oxide. The preparation method comprises the following steps: immersing nanometer zinc oxide into a hydrochloric acid solution,then filtering nanometer zinc oxide out of the hydrochloric acid solution, adding water, then adding a barium stearate dispersant so as to obtain a nanometer zinc oxide dispersion, adding the nanometer zinc oxide dispersion into an ultrasonic generator, adding a soaking modifying solution, carrying out ultrasonic treatment under heating so as to obtain a modified nanometer zinc oxide solution, filtering the modified nanometer zinc oxide solution, placing filtered modified nanometer zinc oxide into a drying oven for drying, placing dried modified nanometer zinc oxide into a muffle furnace for calcination, and after calcination is completed, taking calcined modified nanometer zinc oxide out of the muffle furnace so as to obtain a finished product, namely, the modified nanometer zinc oxide. The preparation method for the modified nanometer zinc oxide provided by the invention has the following advantages: when the nanometer zinc oxide dispersion is modified by soaking, nanometer zinc oxide particles are located in a good dispersion state in a liquid by utilizing ultrasonic wave through ultrasonic operation, so the phenomenon of agglomeration among the nanometer zinc oxide particles can be reduced; the process is easy to operate; and the modified nanometer zinc oxide prepared by using the preparation method provided by the invention has good dispersity and facilitates realizing industrial production.

Description

technical field [0001] The invention belongs to the technical field of inorganic material modification, and in particular relates to a preparation method of modified nanometer zinc oxide. Background technique [0002] Nano zinc oxide is a new type of high-function fine inorganic product. Due to the nanonization of materials, nano zinc oxide produces surface effects, small size effects and macroscopic quantum tunneling effects that its bulk materials do not have. Therefore, nano zinc oxide has special properties and uses that cannot be compared with general zinc oxide products in terms of magnetism, light, electricity, chemistry, physics, and inductance. [0003] However, nano-zinc oxide with high specific surface energy is easy to agglomerate, difficult to disperse in organic media, and has poor binding performance with polymers, which directly affects its actual efficacy. In order to reduce the surface polarity of nanomaterials, improve the dispersion ability and affinity...

Claims

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Application Information

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IPC IPC(8): C01G9/02B82Y30/00
CPCB82Y30/00C01G9/02
Inventor 姜秀平刘红升
Owner YUNCHENG UNIVERISTY
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