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Silica for high load capacity and high cleaning friction type dentifrice and preparation method thereof

A technology of silicon dioxide and load force, applied in the directions of silicon dioxide, silicon oxide, cosmetic preparations, etc., can solve the problems of dentifrice is not moisture-proof, the friction type of silicon dioxide is poor, and the dentifrice is easy to agglomerate. The reduction of the surface area, the increase of the friction effect, and the simplicity of the preparation process

Active Publication Date: 2022-02-22
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 in tooth powder, and the tooth powder is easy to agglomerate
[0006] In summary, there are generally technical problems in the prior art such as poor friction type of silica, poor water absorption, non-moisture-proof tooth powder, and easy caking.

Method used

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  • Silica for high load capacity and high cleaning friction type dentifrice and preparation method thereof
  • Silica for high load capacity and high cleaning friction type dentifrice and preparation method thereof

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 in particular relates to silicon dioxide for high-loading, high-cleaning and friction-type tooth powder and a preparation method thereof. The invention adopts the water glass with a modulus of 1.5-3.5 to react with the sulfuric acid of a certain concentration under the action of sodium dodecylsulfonate to prepare the silicon dioxide for tooth powder with high load capacity and high cleaning and friction type. The high-loading, high-cleaning, friction-type dentifrice silica provided by the present invention is a high-grinding, high-adsorption precipitated silica with a large particle size, which is not easy to disperse and has a water absorption of 120-180mL / 100g, and is applied to dentifrices. It can prevent moisture and prevent the tooth powder from absorbing moisture and agglomerating during the storage of the tooth powder. In addition, the silicon dioxide for high-loading and high-cleaning abrasive tooth powder provided by the present invention has a high loading capacity and can improve the performance of the tooth powder.

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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Patent Type & Authority Patents(China)
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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