Nanometer titanium dioxide dispersion emulsion and preparation process thereof

A nano-titanium dioxide and dispersing emulsion technology, which is applied in chemical instruments and methods, chemical/physical processes, physical/chemical process catalysts, etc., can solve the problems of limiting the use range of dispersion liquid, pH cannot reach neutral, and high dispersant dosage. Achieve the effect of improving the compatibility of solid-liquid interface, reducing surface tension and increasing penetration

Pending Publication Date: 2020-03-03
倍肯(浙江)科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This technology uses two types of agents - one called an adhesive or binder material used together during mill processing (a type being referred to herein) to improve the efficiency at which fine metal oxides can become mixed into liquids like water by reducing their surfaces' tendency towards aggregating). It also helps finely mix tiny metallic materials evenly throughout the mixture without forming large clumps.

Problems solved by technology

This patented technical problem addressed by this patents relates to improves the efficiency of producing fine nanoparticles (NP), specifically tungsten oxides). Current methods involve creation of large amounts of impurities during production due to poor quality control measures like acidification/alkalization processes. Additionally, current techniques require expensive equipment with limited lifespan.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] 1. Weigh 2g of polyacrylic acid, 2g of sodium polyacrylate (average molecular weight 4000), and 8g of sodium hexametaphosphate, fully dissolve them in 156g of water, and add 20g of nano zinc oxide powder.

[0018] 2. Turn on the high-speed disperser, set the speed to 3000r / min, and pre-disperse for 15 minutes.

[0019] 3. Put the above solution into the nano grinder feed tank, set the grinder speed to 2000r / min, and grind for 5 hours to obtain nano zinc oxide dispersion emulsion.

[0020] 4. The D90 is 68.5nm tested by the particle size analyzer, and the photocatalytic effect is good.

Embodiment 2

[0022] 1. Weigh 2g of polyacrylic acid, 2g of sodium polyacrylate (average molecular weight 4000), and 8g of sodium hexametaphosphate, fully dissolve them in 156g of water, and add 20g of nano zinc oxide powder.

[0023] 2. Turn on the high-speed disperser, set the speed to 3000r / min, and pre-disperse for 15 minutes.

[0024] 3. Put the above solution into the nano grinder feed tank, set the grinder speed to 2000r / min, and grind for 8 hours to obtain nano zinc oxide dispersion emulsion.

[0025] 4. The D90 is 66.1nm after the particle size tester, and the photocatalytic effect is good.

Embodiment 3

[0027] 1. Weigh 2g of polyacrylic acid, 2g of sodium polyacrylate (average molecular weight 4000), and 8g of sodium hexametaphosphate, fully dissolve them in 156g of water, and add 20g of nano zinc oxide powder.

[0028] 2. Turn on the high-speed disperser, set the speed to 3000r / min, and pre-disperse for 15 minutes.

[0029] 3. Put the above solution into the nano grinder feed tank, set the grinder speed to 2500r / min, and grind for 5 hours to obtain nano zinc oxide dispersion emulsion.

[0030] 4. The D90 is 65.7nm tested by the particle size analyzer, and the photocatalytic effect is good.

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Abstract

The invention discloses a nanometer titanium dioxide dispersion emulsion and a preparation process thereof. According to the method, sodium polyacrylate, polyacrylic acid and sodium hexametaphosphateare used as dispersants, and are pre-dispersed on a high-speed dispersion machine according to a reasonable ratio, and grinding is performed for a certain time by using a nanometer grinding machine toobtain the stable nanometer titanium dioxide dispersion emulsion. The nanometer titanium dioxide dispersion liquid prepared by the method has characteristics of adjustable solid content, highly stable solution, neutral PH value, non-toxic and easily-available dispersing agent, D90 particle size of lower than 80 nm and excellent photocatalysis effect, and can be applied to various fields, and themethod is suitable for large-scale production.

Description

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Claims

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Application Information

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Owner 倍肯(浙江)科技发展有限公司
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