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Surface treatment method of nano-zinc oxide

A nano-zinc oxide, surface treatment technology, applied in chemical instruments and methods, inorganic pigment treatment, dyeing physical treatment, etc. Simple, good dispersion effect

Inactive Publication Date: 2017-08-25
广西放心源生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the process of this treatment method is more complicated, the control process is difficult, the cost is higher, and it is difficult to realize industrial production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A method for surface treatment of nano-zinc oxide, comprising the following steps:

[0023] (1) Transport the nano-zinc oxide to the surface treatment tank, then add sodium palmitate dispersant and ethanol, control the temperature at 60°C, stir at a speed of 300r / min for 30min, and obtain a nano-zinc oxide dispersion with a mass concentration of 20% ; The addition of the sodium palmitate dispersant is 1.5% of the nano zinc oxide weight

[0024] (2) Add the above-mentioned nano-zinc oxide dispersion into an ultrasonic generator, then add sodium ricinoleic acid methyl sulfate and sodium citrate composite modifier, and ultrasonicate for 40 minutes at a temperature of 60°C and a frequency of 60KHz to obtain a modified nano Zinc oxide liquid; The mass ratio of sodium ricinoleic acid methyl sulfate sodium citrate is 3:1, and the add-on of modifying agent is 2% of nanometer zinc oxide weight;

[0025] (3) Filter the modified nano-zinc oxide solution, dry it at 80°C until the ...

Embodiment 2

[0027] A method for surface treatment of nano-zinc oxide, comprising the following steps:

[0028] (1) Transport the nano-zinc oxide to the surface treatment tank, then add sodium palmitate dispersant and ethanol, control the temperature at 70°C, stir at a speed of 150r / min for 25min, and obtain a nano-zinc oxide dispersion with a mass concentration of 18% ; The addition of the sodium palmitate dispersant is 1.0% of the nano zinc oxide weight

[0029] (2) Add the above-mentioned nano-zinc oxide dispersion into an ultrasonic generator, then add sodium ricinoleic acid ethyl sulfate and sodium citrate composite modifiers, and ultrasonicate for 30 minutes at a temperature of 70°C and a frequency of 70KHz to obtain a modified nano Zinc oxide liquid; The mass ratio of sodium ricinoleic acid ethyl sulfate sodium citrate is 4:1, and the add-on of modifying agent is 2.5% of nanometer zinc oxide weight;

[0030] (3) Filter the modified nano-zinc oxide solution, dry it at 100°C until th...

Embodiment 3

[0032] A method for surface treatment of nano-zinc oxide, comprising the following steps:

[0033] (1) Transport the nano-zinc oxide to the surface treatment tank, then add sodium palmitate dispersant and ethanol, control the temperature at 80°C, stir at a speed of 100r / min for 30min, and obtain a nano-zinc oxide dispersion with a mass concentration of 15% ; The addition of the sodium palmitate dispersant is 2.0% of the nano zinc oxide weight

[0034] (2) Add the above-mentioned nano-zinc oxide dispersion into an ultrasonic generator, then add sodium ricinoleic acid butyl sulfate and sodium citrate composite modifier, and ultrasonicate for 20 minutes at a temperature of 80°C and a frequency of 80KHz to obtain a modified nano Zinc oxide liquid; Described ricinoleic acid butyl sulfate sodium citrate mass ratio is 3:1, and the add-on of modifier is 3.0% of nanometer zinc oxide weight;

[0035] (3) Filter the modified nano-zinc oxide solution, dry it at 100°C until the water cont...

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PUM

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Abstract

The invention discloses a surface treatment method of nano-zinc oxide. The surface treatment method comprises the following steps: conveying nano-zinc oxide to a surface treatment groove, adding a sodium palmitate dispersing agent and ethanol, and stirring at a temperature of 60-80 DEG C and a rotation speed of 100r / min-300r / min for 20-30 minutes, so as to obtain nano-zinc oxide dispersing liquid; adding the nano-zinc oxide dispersing liquid into an ultrasonic generator, adding ricinoleate sodium sulfate and sodium citrate composite modifying agent, carrying out ultrasonic treatment at a temperature of 60-80 DEG C and a frequency of 60Hz-80Hz for 20-40 minutes, so as to obtain modified nano-zinc oxide liquid; and filtering, drying, crushing and sieving the modified nano-zinc oxide liquid, so as to finish the modification of the nano-zinc oxide. The nano-zinc oxide which is subjected to surface treatment by virtue of the surface treatment method has good dispersity and stability and further has good consistency with organic matters, and the light resistance and weather resistance of zinc oxide can be improved.

Description

technical field [0001] The invention relates to the technical field of inorganic material modification, in particular to a method for surface treating nanometer zinc oxide. Background technique [0002] Nano-zinc oxide (nano-ZnO) 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. 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 of nanoparti...

Claims

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Application Information

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IPC IPC(8): C09C1/04C09C3/04C09C3/08
CPCC09C1/043C09C3/006C09C3/04C09C3/08
Inventor 不公告发明人
Owner 广西放心源生物科技有限公司
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