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A kind of acid and alkali resistant surfactant and preparation method thereof

A surfactant, acid and alkali resistance technology, used in surface active detergent compositions, non-ionic surface active compounds, chemical instruments and methods, etc., can solve the problems of weak alkali resistance, etc. sexual effect

Active Publication Date: 2021-06-04
广东剑鑫科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a single surfactant is not very resistant to alkali, and the maximum limit is only 20% of alkali resistance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] An acid and alkali resistant surfactant, made of water and the following components by weight percentage: 40 parts of AEO, 30 parts of triethanolamine, 4.5 parts of maleic acid, 4 parts of coconut oil fatty acid diethanolamide, appropriate amount tris(hydroxymethyl)methylglycine, 7 parts of sulfonated oil, 1.5 parts of sodium xylene sulfonate, 1 part of chelating agent, catalytic amount of p-toluenesulfonic acid and sodium carbonate adjusted to pH 8.5;

[0034] The consumption of tris(hydroxymethyl)methylglycine is 2.3 mole times of coconut oil fatty acid diethanolamide; AEO is composed of AEO9 and AEO3 in a weight ratio of 1:2.

[0035] The method for preparing this acid and alkali resistant surfactant comprises the following steps:

[0036] 1) Heating triethanolamine to a melted state, adding maleic acid dropwise, adding p-toluenesulfonic acid whose molar weight is 3.5 times that of maleic acid for esterification, reacting for 2 hours, and cooling to 60-70°C;

[0037...

Embodiment 2

[0041] An acid and alkali resistant surfactant, made of water and the following components by weight percentage: 30 parts of AEO, 20 parts of triethanolamine, 4 parts of maleic acid, 5 parts of coconut oil fatty acid diethanolamide, appropriate amount Tris(hydroxymethyl)methylglycine, 6 parts of sulfonated oil, 1.5 parts of sodium xylene sulfonate, 1 part of chelating agent, catalytic amount of p-toluenesulfonic acid and sodium hydroxide adjusted to pH 8;

[0042] The consumption of tris(hydroxymethyl)methylglycine is 2.5 mole times of coconut oil fatty acid diethanolamide; AEO is composed of AEO9 and AEO3 in a weight ratio of 1:1.

[0043] The method for preparing this acid and alkali resistant surfactant comprises the following steps:

[0044] 1) Heating triethanolamine to a melted state, adding maleic acid dropwise, adding p-toluenesulfonic acid whose molar weight is 3.5 times that of maleic acid for esterification, reacting for 2 hours, and cooling to 60-70°C;

[0045] 2)...

Embodiment 3

[0049]An acid and alkali resistant surfactant, made of water and the following components by weight percentage: 50 parts of AEO, 40 parts of triethanolamine, 5 parts of maleic acid, 3 parts of coconut oil fatty acid diethanolamide, appropriate amount Tris(hydroxymethyl)methylglycine, 8 parts of sulfonated oil, 1 part of sodium xylene sulfonate, 0.5 part of chelating agent, catalytic amount of p-toluenesulfonic acid and sodium carbonate adjusted to pH 9;

[0050] The consumption of tris(hydroxymethyl)methylglycine is 2.5 mole times of coconut oil fatty acid diethanolamide; AEO is composed of AEO9 and AEO3 in a weight ratio of 1:3.

[0051] The method for preparing this acid and alkali resistant surfactant comprises the following steps:

[0052] 1) Heating triethanolamine to a melted state, adding maleic acid dropwise, adding p-toluenesulfonic acid whose molar weight is 3.5 times that of maleic acid for esterification, reacting for 2 hours, and cooling to 60-70°C;

[0053] 2) H...

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PUM

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Abstract

The invention discloses an acid and alkali resistant surfactant, which is prepared from a solvent and the following components by weight percentage: 30-50 parts of AEO, 20-40 parts of triethanolamine, 4-5 parts of maleic acid, 3‑5 parts C 12‑18 Alkyl acid diethanolamide, appropriate amount of tris(hydroxymethylglycine), 6-8 parts of sulfonated oil, 1-2 parts of sodium xylene sulfonate, 0.5-2 parts of chelating agent, catalytic amount of p-toluenesulfonic acid and The pH adjusting agent of adjustment amount; The consumption of three (hydroxymethylglycine) is C 12‑18 2.1-2.5 mole times of alkanoic acid diethanolamide. The acid-alkali-resistant surfactant has better affinity and non-destructiveness to the surface of optical materials and hardware, and can effectively remove oil and debris without external force. The acid and alkali resistant surfactant has better stability and emulsifying performance.

Description

technical field [0001] The invention relates to a surfactant, in particular to an acid and alkali resistant surfactant and a preparation method thereof. Background technique [0002] For the cleaning of optical materials and hardware surfaces, it is necessary to use surfactants with strong decontamination ability, relatively stable pH value, and less damage to the matrix. For the cleaning of hardware surfaces, manual polishing is usually required to achieve a thorough cleaning effect, but this process is time-consuming and labor-intensive, and is prone to safety hazards. The cleaning of optical materials has higher requirements on the penetrability and emulsification performance of the surface lotion. It is necessary to clean the oil stains on the surface of optical materials without any residue without the help of external force. [0003] Such surfactants often need to have relatively good alkali resistance, lubricity, emulsification, penetration and stability. With bette...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11D1/835C11D3/00C11D3/33C11D3/34C11D3/60
CPCC11D1/46C11D1/66C11D1/72C11D1/835C11D3/0047C11D3/33C11D3/34C11D3/3418
Inventor 邓剑明
Owner 广东剑鑫科技股份有限公司