High-loading-capacity and high-cleanliness friction type silicon dioxide for tooth powder and preparation method of silicon dioxide

A technology of silicon dioxide and load force, applied in the direction of silicon dioxide, silicon oxide, cosmetic preparations, etc., can solve the problems of small water absorption, easy agglomeration of dentifrice, easy to agglomerate, etc.

Active Publication Date: 2021-09-07
GUANGZHOU FEIXUE MATERIAL TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of tooth powder is added with active ingredients containing bioactive glass, which has the function of cell repair, but the water absorption of silicon dioxide in the abrasive is small, and the moisture resistance is poor when used i

Method used

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  • High-loading-capacity and high-cleanliness friction type silicon dioxide for tooth powder and preparation method of silicon dioxide
  • High-loading-capacity and high-cleanliness friction type silicon dioxide for tooth powder and preparation method of silicon dioxide

Examples

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Effect test

Embodiment 1

[0029] Example 1. A preparation method of silicon dioxide for high-load-loading and high-cleaning abrasive tooth powder

[0030] The preparation method of silicon dioxide for the high-load-loading and high-cleaning abrasive tooth powder comprises the following steps:

[0031] S1. After liquefying solid sodium silicate with a modulus of 3.5 at high temperature, add water to form a sodium silicate solution with a concentration of 3.0mol / L;

[0032] S2, configuration concentration is the sulfuric acid solution of 8.0mol / L;

[0033] S3. Add a mass percentage of 0.95% sodium dodecylsulfonate solution to the reactor, the amount added is 40% of the volume of the sodium silicate solution, heat up to 85°C, open the stirring paddle in the reactor and set the stirring frequency 40Hz, in the state of stirring, dropwise the sodium silicate solution that step S1 makes and the sulfuric acid solution that step S2 makes, the dripping amount of sodium silicate solution is 13.5m 3 , the droppi...

Embodiment 2

[0035] Embodiment 2, a kind of preparation method of silicon dioxide for high load force high cleaning friction type dentifrice

[0036] The preparation method of silicon dioxide for the high-load-loading and high-cleaning abrasive tooth powder comprises the following steps:

[0037] S1. After liquefying solid sodium silicate with a modulus of 2.5 at high temperature, add water to form a sodium silicate solution with a concentration of 2.6mol / L;

[0038] S2, configuration concentration is the sulfuric acid solution of 6.5mol / L;

[0039] S3. Add a mass percentage of 0.57% sodium dodecylsulfonate solution to the reactor, the amount added is 31% of the volume of the sodium silicate solution, heat up to 83°C, open the stirring paddle in the reactor and set the stirring frequency 36Hz, in the state of stirring, add dropwise the sodium silicate solution that step S1 makes and the sulfuric acid solution that step S2 makes together, the dripping amount of sodium silicate solution is ...

Embodiment 3

[0041] Example 3, a preparation method of silicon dioxide for high-load-loading and high-cleaning abrasive tooth powder

[0042] The preparation method of silicon dioxide for the high-load-loading and high-cleaning abrasive tooth powder comprises the following steps:

[0043] S1. After liquefying solid sodium silicate with a modulus of 1.5 at high temperature, add water to form a sodium silicate solution with a concentration of 1.5mol / L;

[0044] S2, configuration concentration is the sulfuric acid solution of 4.0mol / L;

[0045] S3. Add 0.10% sodium dodecylsulfonate solution to the reaction kettle in an amount of 20% of the volume of the sodium silicate solution, raise the temperature to 70°C, open the stirring paddle in the reaction kettle and set the stirring frequency 30Hz, in the state of stirring, add dropwise the sodium silicate solution that step S1 makes and the sulfuric acid solution that step S2 makes together, the dripping amount of sodium silicate solution is 11.5...

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Abstract

The invention belongs to the technical field of silicon dioxide, and particularly relates to high-loading-capacity and high-cleanliness friction type silicon dioxide for tooth powder and a preparation method of the silicon dioxide. Sodium silicate with a certain concentration and a modulus of 1.5-3.5 reacts with sulfuric acid with a certain concentration under the action of sodium dodecyl sulfate to prepare the high-loading-capacity and high-cleanliness friction type silicon dioxide for the tooth powder. The high-loading-capacity and high-cleaning friction type silicon dioxide for the tooth powder is high-grinding-type and high-adsorption precipitated silicon dioxide, is large in particle size, is not easy to disperse, has the water absorption capacity of 120-180mL/100g, can prevent moisture when being applied to the tooth powder, and prevents the tooth powder from absorbing moisture and caking in the tooth powder storage process. In addition, the high-loading-capacity and high-cleaning-capacity friction type silicon dioxide for the tooth powder has high loading capacity, and the performance of the tooth powder can be improved.

Description

technical field [0001] The invention belongs to the technical field of silicon dioxide, and in particular relates to silicon dioxide for high-loading, high-cleaning and friction-type tooth powder and a preparation method thereof. Background technique [0002] Precipitated silica is widely used as abrasive and thickener in toothpaste formulations because of its stable physical properties, high temperature resistance, acid and alkali resistance, environmental friendliness, good cleaning performance and excellent fluorine compatibility. In recent years, tooth powder has gradually emerged in the market, and more and more people use it. Tooth powder is widely welcomed because of its rich taste, good efficacy and convenient portability. [0003] Tooth powders currently on the market generally use calcium carbonate or magnesium carbonate as abrasives. The pH value of tooth powders is generally alkaline, but brushing teeth with tooth powders under alkaline conditions will damage th...

Claims

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Application Information

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IPC IPC(8): A61K8/25A61K8/46A61Q11/00C01B33/18
CPCA61K8/25A61K8/466A61Q11/00C01B33/18A61K2800/28C01P2004/61
Inventor 陈盈欣梁少彬胡非侯灿明曹晓庆
Owner GUANGZHOU FEIXUE MATERIAL TECH
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