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Synthesis of hexafluoropropylene oxide oligomer type fluorocarbon surfactant and use thereof

A technology of fluorocarbon surfactants and active agents, applied in chemical/physical processes, dissolution, chemical instruments and methods, etc., can solve the problems of small number of fluorocarbon surfactants, poor product performance, environmental hazards, etc., and achieve detergency Odorless, reduced surface tension, strong defoaming effect

Inactive Publication Date: 2009-03-11
张永明 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The advantage of this method is low cost, and the disadvantage is that the product performance is not as good as electrolytic fluorination and telomerization
In addition, most of the current fluorocarbon surfactants are used in water-soluble environments, and the number of fluorocarbon surfactants used in organic solvent environments is very small
Even the fluorocarbon surfactants that can be used in the environment of organic solvents often use a large amount of perfluorooctanoic acid derivatives in the synthesis process. Such derivatives are suspected to have carcinogenic effects on the human body and cause great harm to the environment. Currently, has been restricted

Method used

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  • Synthesis of hexafluoropropylene oxide oligomer type fluorocarbon surfactant and use thereof
  • Synthesis of hexafluoropropylene oxide oligomer type fluorocarbon surfactant and use thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0026] Into a 5L stainless steel autoclave, 600ml of diethylene glycol dimethyl ether, 120ml of tetramethylethylenediamine, 10g of cesium fluoride, 4ml of triethylamine were passed into the 5L stainless steel autoclave, the reaction temperature was set to 20℃, and the hexafluoro ring was continuously passed in. Oxypropane 200g, reaction time 3h. After the reaction is over, continue to stir for 60 minutes, stand for 60 minutes, and discharge. After standing for layering and liquid separation, the lower layer was taken out and analyzed by gas chromatography for composition and distillation to obtain perfluoro-2,5-dimethyl-3,6-dioxononanoyl fluoride.

[0027] Under the action of acid binding agent, 0.21 mol of perfluoro-2,5-dimethyl-3,6-dioxononanoyl fluoride was slowly added dropwise to a three-necked flask containing 0.20 mol of n-octanol, and stirred at 40°C Reflux for 6.5h, wash the resultant product with distilled water to PH=6, then let it stand overnight with anhydrous magnesi...

Embodiment 2

[0029] Into a 5L stainless steel autoclave, 600ml of diethylene glycol dimethyl ether, 120ml of tetramethylethylenediamine, 10g of cesium fluoride, 4ml of triethylamine were passed into the 5L stainless steel autoclave, the reaction temperature was set to 20℃, and the hexafluoro ring was continuously passed in. Oxypropane 200g, reaction time 3h. After the reaction is over, continue to stir for 60 minutes, stand for 60 minutes, and discharge. After standing for layering and liquid separation, the lower layer was taken out and analyzed by gas chromatography for composition and distillation to obtain perfluoro-2,5-dimethyl-3,6-dioxononanoyl fluoride.

[0030] Under the action of acid binding agent, 0.21mol perfluoro-2,5-dimethyl-3,6-dioxononanoyl fluoride was slowly added dropwise to a three-necked flask containing 0.20mol n-dodecanol, at 50℃ After stirring and refluxing for 7 hours, the obtained product was washed with distilled water to PH=6, and then left to stand overnight with a...

Embodiment 3

[0032] Into a 5L stainless steel autoclave, 600ml of diethylene glycol dimethyl ether, 120ml of tetramethylethylenediamine, 10g of cesium fluoride, 4ml of triethylamine were passed into the 5L stainless steel autoclave, the reaction temperature was set to 20℃, and the hexafluoro ring was continuously passed in. Oxypropane 200g, reaction time 3h. After the reaction is over, continue to stir for 60 minutes, stand for 60 minutes, and discharge. After standing for layering and liquid separation, the lower layer was taken out and analyzed by gas chromatography for composition and distillation to obtain perfluoro-2,5-dimethyl-3,6-dioxononanoyl fluoride.

[0033] Under the action of acid binding agent, 0.21mol perfluoro-2,5-dimethyl-3,6-dioxononanoyl fluoride was slowly added dropwise to a three-necked flask containing 0.20mol n-hexadecanol at 50℃ After stirring and refluxing for 8 hours, the obtained product was washed with distilled water to PH=6, then stood overnight with anhydrous ma...

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Abstract

The invention relates to a synthetic method of novel oil-soluble fluorocarbon surfactant with hexafluoropropylene oxide oligomer type and the application thereof. The invention is characterized in that the structure of the series of the novel fluorocarbon surfactant is characterized in that: a. a hydrocarbon chain segment with excellent oil-solubility is adopted as an oil-wet end and the hexafluoropropylene oxide oligomer is adopted as a fluorine chain segment; b. the fluorine chain segment also contains oxygen atom, thus improving the flexibility and dispersion capacity of the fluorocarbon surfactant; c. the length of the hydrocarbon chain segment in molecule is adjustable and the carbon number thereof is in the range of 8 to 18; d. the molecule contains an ester group. The synthetic method of the surfactant is simple and convenient and is applicable to industrial production; the surfactant has good surface activity in organic solvent, can reduce the surface tension of the organic solvent remarkably, can still keep very high surface activity in strong acid or strong alkali, is a good surfactant and can be used in the industries of electroplating industry, textile printing, petroleum, coatings and inks, and the like.

Description

Technical field [0001] The invention relates to a manufacturing method and application of a novel oil-soluble hexafluoropropylene oxide oligomer type fluorocarbon nonionic surfactant. Background technique [0002] Fluorocarbon surfactants have extremely high surface activity because the hydrogen in the hydrophobic group of the hydrocarbon chain is partially or completely replaced by fluorine atoms, and has the unique properties of "three high and two hydrophobic": high surface activity, high thermal stability, High chemical stability; water and oil repellent. Because of these special properties, fluorocarbon surfactants can effectively reduce the surface tension of liquids and solids, and can be used in high temperature, strong acids, strong alkalis and areas where there are oxides that ordinary hydrocarbon surfactants cannot handle. Its big role. The current synthesis methods mainly include electrolytic fluorination, telomerization and oligomerization. The oligomer method is obt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F17/00C09K23/00
Inventor 张永明韩璐璐裴素鹏李虹陈慧卿陈欢李卫
Owner 张永明
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