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High-cleaning-power and high-viscosity friction type silicon dioxide and preparation method thereof

A technology of silica and cleaning power, 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: 2021-08-27
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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  • High-cleaning-power and high-viscosity friction type silicon dioxide and preparation method thereof
  • High-cleaning-power and high-viscosity friction type silicon dioxide and preparation method thereof
  • High-cleaning-power and high-viscosity friction type silicon dioxide and preparation method thereof

Examples

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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 particularly relates to high-cleaning-power and high-viscosity friction type silicon dioxide and a preparation method thereof. The high-cleaning-power and high-viscosity friction type silicon dioxide provided by the invention is prepared by taking a water glass solution with modulus of 2.5-3.5 and a sulfuric acid solution as reaction raw materials, adding octanol into a mother solution and adding fatty acid methyl ester ethoxylate at an aging stage for treatment. The high-cleaning-power and high-viscosity friction type silicon dioxide has a copper consumption value of 5.1-6.7 and an oil absorption value of 215-246g / 100g, and when the friction type silicon dioxide is applied to a toothpaste formula, the viscosity of a toothpaste body is 15-24wcp, so that under the same cleaning power, the toothpaste body has proper viscosity and fluidity, the low-temperature performance of the toothpaste body 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 Applications(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
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