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Treatment method for improving operating characteristics of nano-zinc oxide

A technology of nano-zinc oxide and treatment methods, which is applied in chemical instruments and methods, treatment of dyed organic silicon compounds, treatment of dyed low-molecular organic compounds, etc., can solve the problem of affecting the use characteristics of finished products, poor modification effects, unsatisfactory effects, etc. Problems, achieve the effect of improving dispersion uniformity, temperature resistance, strength and other performance improvements

Active Publication Date: 2017-11-03
ANHUI JINHUA ZINC OXIDE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are various methods for surface modification of nano-zinc oxide. It is common to carry out chemical modification treatment on its surface first, and then perform grafting, deposition and other treatment operations. However, in the existing methods, nano-zinc oxide When the surface is modified for the first time, there are problems of poor modification effect and unstable performance, resulting in unsatisfactory effects of subsequent grafting, deposition and other treatments, which in turn affects the use characteristics of the finished product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A treatment method for improving the use characteristics of nano-zinc oxide, comprising the steps of:

[0023] (1) Soaking modification treatment:

[0024] a. First put the nano-zinc oxide into the hydrochloric acid solution with a mass fraction of 0.5%, and filter it out for later use after stirring continuously for 40 minutes;

[0025] b. Put the nano-zinc oxide treated in operation a into the soaking modified solution, and filter out the nano-zinc oxide after 1 hour of continuous stirring treatment; each substance and its corresponding weight percentage in the described soaking modified solution are: Sodium dichromate 0.3%, zinc chloride 0.05%, sodium hexametaphosphate 0.1%, stearic acid 5%, isopropanol 20%, the balance is water;

[0026] (2) Deposition modification treatment:

[0027] a. Put the nano-zinc oxide treated in step (1) into solution A, heat to keep the temperature of solution A at 40°C, keep stirring for 35 minutes and then filter out for later use; th...

Embodiment 2

[0037] A treatment method for improving the use characteristics of nano-zinc oxide, comprising the steps of:

[0038] (1) Soaking modification treatment:

[0039] a. First put the nano-zinc oxide into the hydrochloric acid solution with a mass fraction of 1%, and then filter it out for subsequent use after stirring continuously for 43 minutes;

[0040] B. Put the nano-zinc oxide processed in operation a into the soaking modified solution, and filter out the nano-zinc oxide after continuous stirring for 1.2h for subsequent use; each substance and its corresponding weight percentage in the described soaking modified solution are : Sodium dichromate 0.4%, zinc chloride 0.1%, sodium hexametaphosphate 0.15%, stearic acid 6%, isopropanol 25%, the balance is water;

[0041] (2) Deposition modification treatment:

[0042] a. Put the nano-zinc oxide treated in step (1) into solution A, heat to keep the temperature of solution A at 42°C, keep stirring for 38 minutes and then filter ou...

Embodiment 3

[0052] A treatment method for improving the use characteristics of nano-zinc oxide, comprising the steps of:

[0053] (1) Soaking modification treatment:

[0054] a. First put the nano-zinc oxide into the hydrochloric acid solution with a mass fraction of 1.5%, and filter it out for later use after stirring continuously for 45 minutes;

[0055] B. put the nano-zinc oxide processed in operation a into the soaking modification solution, and after 1.5h of continuous stirring process, the nano-zinc oxide is filtered out for subsequent use; each substance and its corresponding weight percentage in the described soaking modification solution are : Sodium dichromate 0.5%, zinc chloride 0.15%, sodium hexametaphosphate 0.2%, stearic acid 7%, isopropanol 30%, the balance is water;

[0056] (2) Deposition modification treatment:

[0057] a. Put the nano-zinc oxide treated in step (1) into solution A, heat to keep the temperature of solution A at 45°C, keep stirring for 40 minutes and the...

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Abstract

The invention discloses a treatment method for improving operating characteristics of nano-zinc oxide. The treatment method comprises the following steps of soaking modification treatment and deposition modification treatment. The prepared modified nano-zinc oxide has good dispersing characteristics, an agglomeration phenomenon is not likely to occur, the strength, corrosion resistance and temperature resistance of the nano-zinc oxide are very well improved, the compatibility with organic components are better, a filling usage effect is good, and the nano-zinc oxide has a popularization and usage value.

Description

technical field [0001] The invention relates to a treatment technology of zinc oxide, in particular to a treatment method for improving the use characteristics of nanometer zinc oxide. Background technique [0002] Nano-zinc oxide is an inorganic ultraviolet shielding agent and filler with excellent performance, which is widely used in sunscreen cosmetics, nano-functional textiles, functional rubber, plastics, coatings and other fields. However, nano-zinc oxide is an inorganic oxide with small size and high surface energy, and it is difficult to be compatible with organic components, so it is easy to cause serious agglomeration. Therefore, it is necessary to modify the surface of nano zinc oxide before use. At present, there are various methods for surface modification of nano-zinc oxide. It is common to carry out chemical modification treatment on its surface first, and then perform grafting, deposition and other treatment operations. However, in the existing methods, nano...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/04C09C3/06C09C3/08C09C3/12
CPCC09C1/043C09C3/006C09C3/06C09C3/08C09C3/12
Inventor 张训龙
Owner ANHUI JINHUA ZINC OXIDE CO LTD
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