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Electrolyte-resistant anionic surfactant, preparation method and application thereof

A surfactant and electrolyte-resistant technology, applied in chemical instruments and methods, dissolution, dyeing methods, etc., can solve problems such as product defects, limited emulsification dispersion, and easy precipitation of surfactants, and achieve low processing costs and excellent emulsification , The effect of large steric hindrance

Active Publication Date: 2020-11-13
传化智联股份有限公司 +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The third object of the present invention is to provide an application of an electrolyte-resistant anionic surfactant in oil-removing dyeing, which can solve the problem of easy precipitation of surfactants or limited emulsification and dispersibility in the prior art under poor water quality conditions. Problems that cause a defect in the product

Method used

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  • Electrolyte-resistant anionic surfactant, preparation method and application thereof
  • Electrolyte-resistant anionic surfactant, preparation method and application thereof
  • Electrolyte-resistant anionic surfactant, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] 1. Surfactant

[0056] Above-mentioned surfactant is sodium pentaerythritol monocaprate polyoxyethylene polyoxypropylene ether carboxylate, and its structural formula is as shown in formula 2:

[0057]

[0058] Wherein, m1=4; m2=4; m3=4; n1=5; n2=5; n3=5.

[0059] 2. Preparation method

[0060] The preparation method of above-mentioned tensio-active agent, comprises the steps:

[0061] Add 40.83g of pentaerythritol and 5.79g of potassium hydroxide into a 250ml four-neck flask equipped with a sealed mechanical stirrer, a thermometer, a straight condenser tube and a receiving flask, and stir at 150°C until the potassium hydroxide is completely dissolved, and pour into the flask Add 55.89 g of methyl caprate dropwise, and react at 150° C. for 10 hours. Methanol and water generated during the reaction are collected into the receiving flask through a straight condenser tube, and the first mixture in the flask is collected;

[0062] Add 35g of the above-mentioned first ...

Embodiment 2

[0066] 1. Surfactant

[0067] Above-mentioned surfactant is sodium pentaerythritol monolaurate polyoxyethylene polyoxypropylene ether carboxylate, and its structural formula is as shown in formula 3:

[0068]

[0069] Among them, m1=3; m2=2; m3=2; n1=5; n2=4; n3=4.

[0070] 2. Preparation method

[0071] The preparation method of above-mentioned tensio-active agent, comprises the steps:

[0072] Add 41.50g of pentaerythritol and 3.20g of sodium hydroxide into a 250ml four-neck flask equipped with a sealed mechanical stirrer, a thermometer, a straight condenser tube and a receiving flask, and stir at 170°C until the sodium hydroxide is completely dissolved, and pour into the flask Add 45.90 g of methyl laurate dropwise, and react at 170°C for 8 hours. The methanol and water generated during the reaction are collected into the receiving bottle through a straight condenser tube, and the first mixture in the flask is collected;

[0073] Add 35 g of the above-mentioned first ...

Embodiment 3

[0077] 1. Surfactant

[0078] Above-mentioned surfactant is pentaerythritol monomyristate polyoxyethylene polyoxypropylene ether sodium sulfonate, and its structural formula is as shown in formula 4:

[0079]

[0080] Wherein, m1=4; m2=2; m3=2; n1=5; n2=2; n3=2.

[0081] 2. Preparation method

[0082] The preparation method of above-mentioned tensio-active agent, comprises the steps:

[0083] Add 37.26g of pentaerythritol and 5.14g of sodium methoxide into a 250ml four-neck flask equipped with a sealed mechanical stirrer, a thermometer, a straight condenser tube and a receiving bottle, and stir at 130°C until the sodium methoxide is completely dissolved, then add dropwise 48.50 g of methyl laurate was reacted at 130° C. for 12 hours. The methanol and water generated during the reaction were collected into the receiving bottle through a straight condenser tube, and the first mixture in the flask was collected;

[0084] Add 35g of the above-mentioned first mixture and 3.25...

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Abstract

The present invention relates to a kind of electrolyte-resistant anionic surfactant and its preparation method and application, and this surfactant has excellent wettability, penetration, heat resistance, emulsification, dispersion and electrolyte resistance performance; The preparation method is fatty acid methyl ester, pentaerythritol and alkali mixed reaction to obtain pentaerythritol monofatty acid ester; pentaerythritol monofatty acid ester, ethylene oxide, propylene oxide and catalyst mixed reaction to obtain pentaerythritol monofatty acid ester polyoxyethylene polyoxypropylene ether; pentaerythritol monofatty acid The mixture reaction of ester polyoxyethylene polyoxypropylene ether, halogenated carboxylate or halogenated sulfonate, alkali and phase transfer catalyst is obtained surfactant; This method can improve the yield of surfactant; Apply surfactant to In the oil-removing dyeing method, it can remove oil and level dye at the same time, save water, add less additives, and reduce processing costs; Reuse, save water resources.

Description

technical field [0001] The invention relates to the field of surfactants, in particular to an electrolyte-resistant anion surfactant and its preparation method and application. Background technique [0002] The textile printing and dyeing industry includes a series of processing procedures from raw materials to products of natural fibers such as cotton, hemp, silk, and wool, and synthetic fibers. In order to make each process run smoothly and improve the performance and quality of fabrics, various auxiliary chemicals need to be added, among which surfactants are the most used and the most varied in variety. The variety of surfactants used in the textile industry has reached more than 3,000, mainly used in pretreatment additives (such as refining agents, penetrating agents, wetting agents, desizing agents, dispersants, alkali reduction accelerators, etc.), In printing and dyeing auxiliaries (such as leveling agent, softener, penetrating agent, emulsifier, detergent, etc.) an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G65/26B01F17/44B01F17/04D06P1/16D06P1/613D06P1/653C09K23/44C09K23/04
CPCD06P1/16D06P1/6133D06P1/6533C09K23/00
Inventor 金鲜花张红燕王孟泽陈英英
Owner 传化智联股份有限公司