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Waterborne zinc stearate emulsion and method for preparing same

A technology of zinc stearate and emulsion, applied in chemical instruments and methods, dissolution, organic chemistry, etc., can solve the problems of easy precipitation, poor dispersion effect, and high production cost, and achieve production cost saving, good dispersion effect, and simplification. The effect of the production process

Active Publication Date: 2019-03-08
广州正浩新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even if the existing water-based zinc stearate emulsion is added with emulsifier and dispersant, the dispersion effect is not good, it is easy to precipitate, and flocculation and stratification will appear after long-term storage
In addition, the existing method requires high-speed stirring and grinding under heating conditions in the process of preparing aqueous zinc stearate emulsion, the production process is complex, and the production cost is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The preparation of embodiment 1 aqueous zinc stearate emulsion

[0027] Composition in parts by weight of raw materials: 40 parts of zinc stearate; 8 parts of emulsifier; 0.3 part of polydimethylsiloxane; 0.2 part of sodium benzoate; 51.5 parts of water;

[0028] Described emulsifying agent is prepared by following method:

[0029] (1) Thionyl chloride was added dropwise to 11-trans-octadecenoic acid, the reaction temperature was controlled at 55°C, and the reaction was stirred for 3 hours to obtain 11-trans-octadecenoic acid chloride;

[0030] (2) adding sorbitol and sinapyl alcohol to the acetone solution, then adding 11-trans-octadecenoic acid chloride, reacting at 35°C for 2 hours, washing the product to obtain the emulsifier;

[0031] The molar ratio of 11-trans-octadecenoic acid and thionyl chloride described in step (1) is 1:1.8;

[0032] In step (2), the molar ratio of sorbitol, sinapyl alcohol and 11-trans-octadecenoic acid chloride is 1:2:20.

[0033] The p...

Embodiment 2

[0035] The preparation of embodiment 2 aqueous zinc stearate emulsions

[0036] Composition in parts by weight of raw materials: 30 parts of zinc stearate; 10 parts of emulsifier; 1 part of polydimethylsiloxane; 1 part of sodium benzoate; 58 parts of water;

[0037] Described emulsifying agent is prepared by following method:

[0038] (1) Thionyl chloride was added dropwise to 11-trans-octadecenoic acid, the reaction temperature was controlled at 50°C, and the reaction was stirred for 4 hours to obtain 11-trans-octadecenoic acid chloride;

[0039] (2) adding sorbitol and sinapyl alcohol to acetone solution, then adding 11-trans-octadecenoic acid chloride, reacting at 40° C. for 1.5 h, washing the product to obtain the emulsifier;

[0040] The molar ratio of 11-trans-octadecenoic acid and thionyl chloride described in step (1) is 1:1.5;

[0041] In step (2), the molar ratio of sorbitol, sinapyl alcohol and 11-trans-octadecenoic acid chloride is 1:2:25.

[0042] The preparati...

Embodiment 3

[0044] The preparation of embodiment 3 aqueous zinc stearate emulsions

[0045] Composition in parts by weight of raw materials: 50 parts of zinc stearate; 15 parts of emulsifier; 1 part of polydimethylsiloxane; 1 part of sodium benzoate; 50 parts of water;

[0046] Described emulsifying agent is prepared by following method:

[0047] (1) Thionyl chloride was added dropwise to 11-trans-octadecenoic acid, the reaction temperature was controlled at 60°C, and the reaction was stirred for 3 hours to obtain 11-trans-octadecenoic acid chloride;

[0048] (2) adding sorbitol and sinapyl alcohol to the acetone solution, then adding 11-trans-octadecenoic acid chloride, reacting at 30°C for 3 hours, washing the product to obtain the emulsifier;

[0049] The molar ratio of 11-trans-octadecenoic acid and thionyl chloride described in step (1) is 1:2;

[0050] In step (2), the molar ratio of sorbitol, sinapyl alcohol and 11-trans-octadecenoic acid chloride is 1:2:18.

[0051] The prepara...

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Abstract

The invention relates to the technical field of zinc stearate, and particularly discloses waterborne zinc stearate emulsion and a method for preparing the same. The waterborne zinc stearate emulsion comprises, by weight, 30-50 parts of zinc stearate, 5-15 parts of emulsifiers, 0.1-1 part of defoaming agents, 0.1-1 part of preservatives and 40-60 parts of water. The waterborne zinc stearate emulsion and the method have the advantages that processes for producing the waterborne zinc stearate emulsion are simple, good dispersion effects can be realized, and the waterborne zinc stearate emulsion can be stored and placed for a long time.

Description

technical field [0001] The invention relates to the technical field of zinc stearate, in particular to an aqueous zinc stearate emulsion and a preparation method thereof. Background technique [0002] Water-based zinc stearate emulsion has a wide range of applications, and can be used as a release agent, color retention agent, lubricant, release agent, etc. It can be used in water-based furniture paint, water-based industrial paint, water-based ink, textiles, cosmetics, thermal paper coating and other fields. Because zinc stearate is insoluble in water, it is necessary to add emulsifier and dispersant in the process of preparing aqueous zinc stearate emulsion to achieve the dispersion effect. Even if the existing water-based zinc stearate emulsion is added with an emulsifier and a dispersant, the dispersion effect is not good, and it is easy to precipitate, and the phenomenon of flocculation and stratification will occur when it is left for a long time. In addition, the ex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F17/08B01F17/32C07D307/20C09K23/08C09K23/32
CPCC07D307/20C09K23/018
Inventor 李英
Owner 广州正浩新材料科技有限公司
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