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Anti-agglomeration thickening type silicon dioxide and preparation method thereof

A technology for thickening silicon dioxide and silicon dioxide, applied in the direction of silicon dioxide, silicon oxide, cosmetic preparations, etc. Dispersion performance, excellent performance, the effect of improving stability

Active Publication Date: 2022-01-21
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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  • Anti-agglomeration thickening type silicon dioxide and preparation method thereof
  • 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. Dilute and dissolve the water glass with a modulus of 3 with water and age for 5 hours, take the aged water glass and add water to dilute 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 , heating up to 60° C., stirring, the stirring speed is 30 Hz, and adding diboron trioxide with 0.05% water glass quality, stirring and dispersing 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 from impurities;

[0028] S3: Add the sulfuric acid solution prepared in step S2 dropwise to the water glass mixed solution prepared in step S1 when the temperature is raised to 60°C, and the speed of adding the sulfuric acid solution is 2.0m 3 / h, the pH at th...

Embodiment 2

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

[0031] Preparation method: S1. Dilute and dissolve water glass with a modulus of 3.3 and age for 6 hours, take the aged water glass and add water to dilute 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, the stirring speed is 25 Hz, and adding boron trioxide with 0.1% water glass quality, stirring and dispersing evenly, forming 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 from impurities;

[0033] S3: Add the sulfuric acid solution prepared in step S2 dropwise to the water glass mixed solution prepared in step S1 when the temperature is raised to 70°C, and the speed of adding the sulfuric acid solution is 2.5m 3 / h, the pH at the end of the re...

Embodiment 3

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

[0036] Preparation method: S1. Dilute water glass with a modulus of 3.5, dissolve and age for 8 hours, take the aged water glass and add water to dilute 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 , heating up to 70° C., stirring, the stirring speed is 20 Hz, and adding boron trioxide with 0.2% water glass quality, stirring and dispersing evenly, forming 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 from impurities;

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

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Abstract

The invention belongs to the technical field of silicon dioxide for toothpaste, and particularly relates to anti-agglomeration thickening type silicon dioxide and a preparation method thereof. According to the preparation method disclosed by the invention, diboron trioxide with a specific weight ratio is added into a water glass solution, and meanwhile, the reaction parameters in the preparation process are controlled, so that the dispersity of the prepared silicon dioxide can be finally and remarkably enhanced through the interaction among the raw materials, and meanwhile, due to the adding of the diboron trioxide component, the stability of the finally prepared toothpaste product can be effectively improved, the dosage of a thickening agent is reduced, the formula cost is greatly reduced, and the market requirements are better met.

Description

technical field [0001] The invention belongs to the technical field of silica for toothpaste, and in particular relates to an anti-agglomeration thickening silica and a preparation method thereof. Background technique [0002] Due to 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, it replaces calcium carbonate and other Raw materials are used as abrasives and thickeners for toothpaste. At present, toothpastes on the market tend to produce micellar soft particles when the amount of thickening silica added reaches more than 6%, and the agglomeration of soft particles is easy to block the pipeline, increase maintenance costs, and also cause a certain waste of raw materials; in toothpaste , soft particles are not easy to spread because the ratio of each component deviates grea...

Claims

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Application Information

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Patent Type & Authority Applications(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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