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A kind of high-cleaning power high-viscosity friction type silicon dioxide and its preparation method

A technology of silica and cleaning power, which is applied in the field of high cleaning power and high viscosity friction silica and its preparation, can solve the problems of poor friction and thickening, poor low temperature performance of toothpaste, poor thickening performance, etc., to achieve Good thickening, improved friction performance, improved dispersion performance

Active Publication Date: 2022-01-18
GUANGZHOU FEIXUE MATERIAL TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The silicon dioxide prepared by this method has a copper consumption value of 5.0-7.0mg, which has good friction performance, but its oil absorption value is only 90-120mL / 100g, and its thickening performance is poor
[0006] In summary, there are generally technical problems in the prior art such as poor friction and thickening properties, low viscosity when used in toothpaste, and poor low-temperature performance of toothpaste.

Method used

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  • A kind of high-cleaning power high-viscosity friction type silicon dioxide and its preparation method
  • A kind of high-cleaning power high-viscosity friction type silicon dioxide and its preparation method
  • A kind of high-cleaning power high-viscosity friction type silicon dioxide and its preparation method

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Effect test

Embodiment 1

[0031] Example 1, a preparation method of high cleaning power and high viscosity friction type silica

[0032] The preparation method of described high-cleaning power high-viscosity friction type silica comprises the following steps:

[0033] S1, adding water to the water glass with a modulus of 2.5 to dilute, dissolve and age for 5h, then get the water glass after the aging treatment and add water to configure a water glass solution with a concentration of 0.85mol / L for subsequent use;

[0034] S2, configuration concentration is the sulfuric acid solution of 2.5mol / L, standby;

[0035] S3, add 12m in reaction tank 3 The mass percentage is 4% sodium sulfate solution, then add 20L of the water glass solution prepared in step S1, heat up to 55°C, turn on the stirring device and set the stirring frequency to 30Hz, then add 6kg of octanol, and stir evenly;

[0036] S4, under above-mentioned agitation condition, continue dripping the sulfuric acid soln that step S1 makes water gl...

Embodiment 2

[0038] Example 2, a preparation method of high-cleaning power and high-viscosity friction-type silica

[0039] The preparation method of described high-cleaning power high-viscosity friction type silica comprises the following steps:

[0040] S1, dilute, dissolve and age the water glass with a modulus of 3.0 with water for 6.5 hours, then take the aged water glass and add water to form a water glass solution with a concentration of 1.34mol / L for subsequent use;

[0041] S2, configuration concentration is the sulfuric acid solution of 3.2mol / L, standby;

[0042] S3, add 12m in reaction tank 3 The mass percentage is 5.6% sodium sulfate solution, then add 75L of the water glass solution prepared in step S1, heat up to 61°C, turn on the stirring device and set the stirring frequency to 35Hz, then add 12kg of octanol, and stir evenly;

[0043] S4, under above-mentioned agitation condition, continue dripping the sulfuric acid soln that step S1 makes water glass solution and step S...

Embodiment 3

[0045] Example 3, a preparation method of high-cleaning power and high-viscosity friction-type silica

[0046] The preparation method of described high-cleaning power high-viscosity friction type silica comprises the following steps:

[0047] S1, adding water to the water glass with a modulus of 3.5 to dilute, dissolve and age for 8 hours, then take the aged water glass and add water to configure a water glass solution with a concentration of 1.8mol / L for subsequent use;

[0048] S2, configuration concentration is the sulfuric acid solution of 4.5mol / L, standby;

[0049] S3, add 12m in reaction tank 3 The mass percentage is 8% sodium sulfate solution, then add 100L of the water glass solution prepared in step S1, heat up to 65°C, turn on the stirring device and set the stirring frequency to 40Hz, then add 15kg of octanol, and stir evenly;

[0050] S4, under above-mentioned agitation condition, continue dripping the sulfuric acid solution that step S1 makes water glass soluti...

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Abstract

The invention belongs to the technical field of silicon dioxide, and in particular relates to a frictional silicon dioxide with high cleaning power and high viscosity and a preparation method thereof. The high-cleaning power and high-viscosity friction silica provided by the present invention is based on water glass solution and sulfuric acid solution with a modulus of 2.5-3.5 as reaction raw materials, by adding octanol in the mother liquor and adding fatty acid methyl ester ethyl alcohol in the aging stage Prepared by oxide treatment. The copper consumption value of the high-cleaning force and high-viscosity friction silica provided by the present invention is 5.1-6.7, the oil absorption value is 215-246g / 100g, and the viscosity of the toothpaste paste body applied in the toothpaste formula is 15-24wcp. Under the cleaning power, the toothpaste paste is guaranteed to have suitable viscosity and fluidity, the low-temperature performance of the toothpaste paste is improved, and the production cost of the toothpaste is reduced.

Description

technical field [0001] The invention belongs to the technical field of silicon dioxide, and in particular relates to a frictional silicon dioxide with high cleaning power and high viscosity and a preparation method thereof. Background technique [0002] Silica has 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, so it replaces other raw materials such as calcium carbonate As an abrasive and thickener in toothpaste. [0003] The frictional force and viscosity of the abrasive silica used in toothpaste on the market are generally inversely proportional to the viscosity. To ensure the smooth molding of toothpaste, the silica needs to have sufficient viscosity, which will reduce the frictional force of the silica. At present, the frictional silica produced by the precipitation method usu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B33/18A61K8/25A61Q11/00
CPCC01B33/18A61K8/25A61Q11/00C01P2006/19C01P2006/21C01P2004/61A61K2800/28A61K2800/48
Inventor 张文证梁少彬谭浩存胡非马逸敏
Owner GUANGZHOU FEIXUE MATERIAL TECH