A kind of anti-agglomeration thickening type silicon dioxide and preparation method thereof

A technology for thickening silicon dioxide and silicon dioxide, which is applied in the direction of silicon dioxide, silicon oxide, cosmetic preparations, etc., can solve the problems of low water absorption, low specific surface area, and high dispersion of silicon dioxide, and achieve improved Dispersion performance, excellent performance, and the effect of improving stability

Active Publication Date: 2022-05-24
ZHAOQING SANJIANG SILICON MATERIALS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The thickened silicon dioxide of the present invention has the characteristics of high dispersibility, low specific surface area, high viscosity and high transparency, and has good application prospects, but the water absorption of silicon dioxide is small and the stability is poor

Method used

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  • A kind of anti-agglomeration thickening type silicon dioxide and preparation method thereof
  • A kind of anti-agglomeration thickening type silicon dioxide and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1, a kind of preparation method of anti-agglomeration thickening type silica

[0026] Preparation method: S1. Add water glass with a modulus of 3 to dilute, dissolve and age for 5 hours, take the aged water glass and dilute it with water to prepare a water glass solution with a concentration of 0.35M; inject water with a concentration of 0.35M into the reaction tank Glass Solution 14m 3 , heat up to 60°C, stir at a stirring speed of 30Hz, add 0.05% diboron trioxide by mass of water glass, stir and disperse evenly to form a water glass mixed solution;

[0027] S2: configure a sulfuric acid solution with a concentration of 3.5M to ensure that the acid solution is free of impurities;

[0028] S3: Add dropwise the sulfuric acid solution prepared in step S2 to the water glass mixed solution prepared in step S1 that is heated to 60°C, and the speed of incrementally adding the sulfuric acid solution is 2.0 m 3 / h, the pH of the reaction end point is 4.0, and the s...

Embodiment 2

[0030] Embodiment 2, a kind of preparation method of anti-agglomeration thickening type silica

[0031] Preparation method: S1. Add water glass with a modulus of 3.3 to dilute, dissolve and age for 6 hours, take the aged water glass and dilute it with water to prepare a water glass solution with a concentration of 0.45M; inject water with a concentration of 0.45M into the reaction tank Glass Solution 14m 3 , heating up to 80°C, stirring at a stirring speed of 25Hz, adding diboron trioxide with 0.1% water glass mass, stirring and dispersing evenly to form a water glass mixed solution;

[0032] S2: configure a sulfuric acid solution with a concentration of 3.6M to ensure that the acid solution is free of impurities;

[0033] S3: dropwise add the sulfuric acid solution prepared in step S2 to the water glass mixed solution prepared in step S1 that is heated to 70°C, and the speed of incrementally adding the sulfuric acid solution is 2.5 m 3 / h, the pH at the end of the reaction ...

Embodiment 3

[0035] Embodiment 3, a kind of preparation method of anti-agglomeration thickening type silica

[0036] Preparation method: S1. Add water glass with a modulus of 3.5 to dilute, dissolve and age for 8 hours, take the water glass after aging treatment and dilute it with water to prepare a water glass solution with a concentration of 0.50M; inject water with a concentration of 0.50M into the reaction tank Glass Solution 14m 3 , heat up to 70 ° C, stir, the stirring speed is 20 Hz, and add diboron trioxide with a mass of 0.2% water glass, stir and disperse evenly, and form a water glass mixed solution;

[0037] S2: configure a sulfuric acid solution with a concentration of 4.0M to ensure that the acid solution is free of impurities;

[0038] S3: dropwise add the sulfuric acid solution prepared in step S2 to the water glass mixed solution prepared in step S1 that is heated to 80°C, and the speed of incrementally adding the sulfuric acid solution is 3.0 m 3 / h, the pH at the end of...

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Abstract

The invention belongs to the technical field of silicon dioxide for toothpaste, and in particular relates to an anti-agglomeration thickening silicon dioxide and a preparation method thereof. In the present invention, by adding diboron trioxide in a specific weight ratio to the water glass solution, and simultaneously controlling the reaction parameters in the preparation process, the interaction between the various raw materials can finally significantly enhance the dispersion of the prepared silica, and at the same time The addition of the boron trioxide component can effectively improve the stability of the finally prepared toothpaste product, reduce the amount of thickener used, greatly reduce the formula cost, and better meet market demand.

Description

technical field [0001] The invention belongs to the technical field of silica for toothpaste, and in particular relates to an anti-agglomeration thickening type silica and a preparation method thereof. Background technique [0002] Because of its very stable physical and chemical properties, acid and alkali resistance, high temperature resistance, no pollution to the environment, good cleaning performance, good compatibility with raw materials in toothpaste, and high fluorine compatibility, silicon dioxide replaces calcium carbonate and other other The raw material acts as an abrasive and thickener for toothpaste. At present, the toothpaste on the market is prone to produce micellar soft particles when the amount of thickening silica is more than 6%, and the agglomeration of the soft particles is easy to block the pipeline, increase the maintenance cost, and also cause a certain waste of raw materials; in toothpaste , the soft particles are not easy to spread due to the lar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B33/18A61K8/25A61Q11/00
CPCC01B33/18A61K8/25A61Q11/00C01P2004/61A61K2800/412A61K2800/48
Inventor 张文证马逸敏侯灿明阮秀文曹晓庆
Owner ZHAOQING SANJIANG SILICON MATERIALS CO LTD
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