Preparation method of hard-water-resistant, acid-base-resistant and degradable multifunctional surfactant

A surfactant, acid and alkali resistance technology, used in the preparation of sulfonates, chemical instruments and methods, dissolution, etc., can solve the problems of poor resistance to hard water, application limitations, not too many varieties, etc., to achieve good acid and alkali resistance. and biocompatibility, wide range of hydrophilic-lipophilic balance, good resistance to hard water

Active Publication Date: 2021-09-14
青岛恒信达化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are also products containing carboxylic acid groups, so they are poorly resistant to hard w

Method used

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  • Preparation method of hard-water-resistant, acid-base-resistant and degradable multifunctional surfactant
  • Preparation method of hard-water-resistant, acid-base-resistant and degradable multifunctional surfactant
  • Preparation method of hard-water-resistant, acid-base-resistant and degradable multifunctional surfactant

Examples

Experimental program
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preparation example Construction

[0040] A kind of preparation method of hard water resistance, acid and alkali resistance, degradable multifunctional surfactant, specifically comprises the following steps:

[0041] S1, Synthesis of maleic acid monoamide: Add maleic anhydride and alkylamine into the reaction kettle at a molar ratio of 1:1.02 to 1:1.05, slowly heat to 60-80°C, and then slowly heat up to 80~ 100°C, keep warm for 2 to 4 hours to obtain maleic acid monoamide;

[0042]S2: Synthesis of sulfosuccinic acid monoamide: Add 1 to 1.03 molar ratio of sodium sulfite sulfite to the maleic acid monoamide obtained in step S1), heat up to 80 to 105°C, and react for 4 to 6 hours , sodium sulfosuccinic acid monoamide;

[0043] S3: Add 1 mole of monofunctional polyetheramine or 0.5 mole of difunctional polyetheramine, pass through an appropriate amount of nitrogen protection, heat up to 100°C, slowly raise the temperature to 180-200°C, and continue the reaction for 5-8 Hours, after the reaction system no longer ...

Embodiment 1

[0045] Synthesis of sodium sulfosuccinic acid monooctylamide monopolyetheramide: Add maleic anhydride and octylamine into the reaction kettle at a molar ratio of 1:1.02, slowly heat to 60-80°C, and then slowly heat up to 80°C ~100°C, keep warm for 2 hours, then cool down to about 60°C. Then, add sodium sulfite sulfite with a molar ratio of 1.03 into the reaction kettle, raise the temperature to 80-105° C., and react for 4 hours. Add monofunctional polyetheramine with a molar ratio of 1 and a molecular weight of 1000 monofunctional polyetheramine, pass through an appropriate amount of nitrogen for protection, heat up to 100°C, then slowly raise the temperature to 180-200°C, and continue the reaction for 5 hours. After no more water is distilled off, the waxy solid product can be obtained by cooling. This product can be used in cleaning agent, leather fatliquor, etc.

[0046] Product of the present invention is made into cleaning agent, and wherein the oleic acid soap in the c...

Embodiment 2

[0048] Synthesis of sodium sulfosuccinic acid monooctadecamide monopolyetheramide: Add maleic anhydride and octadecylamine into the reaction kettle at a molar ratio of 1:1.02, slowly heat to 60-80°C, and then slowly heat up to 80-100°C, keep warm for 2 hours, then cool down to about 60°C. Then, add sodium sulfite sulfite with a molar ratio of 1.03 into the reaction kettle, raise the temperature to 80-105° C., and react for 4 hours. Add monofunctional polyetheramine with a molar ratio of 1 and a molecular weight of 600 monofunctionality, pass through an appropriate amount of nitrogen for protection, heat up to 100°C, then slowly raise the temperature to 180-200°C, and continue to react for 5 hours. After no more water is distilled off, the waxy solid product can be obtained by cooling. The product can be used in cleaning agent, leather fatliquor, lubricant.

[0049] This product is made into cleaning agent, and wherein the oleic acid soap in the cleaning agent formula of comp...

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Abstract

According to a preparation method of a hard-water-resistant, acid-alkali-resistant and degradable multifunctional surfactant, succinic anhydride sodium sulfonate, polyether amine and alkylamine are used as raw materials to prepare the multifunctional surfactant containing an amido group, a hydrophilic nonionic polyoxyethylene ether chain, a hydrophilic sulfonate anion group and an oleophylic alkyl chain. A series of surfactants with different molecular weights and different HLB values can be obtained by adjusting the length of a polyoxyethylene chain and the length of the alkyl chain, and the surfactant has the advantages of hard water resistance, difficulty in hydrolysis and capability of meeting the requirements of different application fields.

Description

technical field [0001] The invention relates to the technical field of sulfosuccinic acid amide surfactants, in particular to a preparation method of a hard water-resistant, acid-alkali-resistant and degradable multifunctional surfactant. Background technique [0002] Surfactants have a series of physical and chemical effects such as wetting or anti-adhesive, emulsification or demulsification, foaming or defoaming, solubilization, dispersion, washing, anti-corrosion, anti-static and corresponding practical applications, and become a flexible and diverse class. , Wide range of fine chemical products. Surfactants are used as performance additives in almost all fine chemical industry formulations, such as shampoos, detergents, etc. in everyday personal and home care, and in countless industrial applications, such as metal treatment, industrial cleaning, oil extraction , pesticides, leather treatment agents, etc. In response to human requirements, surfactants are developing to...

Claims

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Application Information

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IPC IPC(8): B01F17/42C08F283/06C08F222/38C07C309/17C07C303/32C09K23/42
CPCC08F283/06C07C309/17C08F222/38
Inventor 孟祥锋杨义会郭敏郭凤玉
Owner 青岛恒信达化工有限公司
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