Fluorine-carbon surfactant and method of producing the same

A fluorocarbon surface and active agent technology, applied in chemical instruments and methods, dissolution, chemical/physical processes, etc., can solve the problems of difficult biodegradation, high price, difficult preparation, etc., achieve mild reaction conditions and reduce surface tension , The effect of simple preparation process

Inactive Publication Date: 2008-10-08
上海亚孚化工科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented inventive technology provides an improved way to prepare non-ionics called Fluorochemical Surface Active (FSA) that reduces surface energy while still being able to dissolve well into various solvent systems like water without causing problems such as foaming during use. These improvements result from specific molecular structures found within these materials.

Problems solved by technology

This patented technical problem addressed in this patent relates to finding new types of fluorous carbon surfactators with improved characteristics such as good wetting ability, resistance against corrosion, lubricity towards various substances, heat transfer capabilities, and noxiousness toward human health when exposed at certain levels. These improvements make their use in industry important roles like cleanings, detergents, paints, coatings, printing agents, pigments, toner powders, and others.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～3

[0019] All main raw materials and additives are made of industrial grade or chemically pure. Perfluoroalkyl sulfonyl fluoride and amine are fully mixed with a certain proportion of solvent according to a certain addition method, and reacted at 20-110°C for 2- After 12 hours, the intermediate product was obtained, and then a certain proportion of oxidant was added to the intermediate product, and the reaction was stirred at 20-80°C for 2-12 hours. After the reaction was completed, the auxiliary agent was added and stirred evenly. Stir and mix at -50°C to obtain the product perfluoroalkylsulfonamide oxide, whose molecular formula is: R F SO 2 NH(CH 2 ) n N(C 2 h 5 ) 2 o

[0020] where: R F :C m f m+1 ;

[0021] m=4~12; n=2 or 3

[0022] Fluorocarbon surfactant is a light-colored liquid, non-ionic fluorocarbon surfactant, which can be miscible with water in any proportion, can greatly reduce the surface tension of water, and has strong compoundability.

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PUM

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Abstract

The invention relates to a fluorocarbon surfactant and a preparation method thereof, which reacts 10-50 parts by weight of perfluoroalkyl sulfonyl fluoride, 5-45 parts by weight of amine and 20-25 parts by weight of solvent at the temperature of ranging from 20 DEG C to 110 DEG C for 2 through 12 hours to acquire an intermediate product; mixing well the intermediate product with 10-30 parts by weight of an oxidant and stirring the mixture for reaction at the temperature of ranging from 20 DEG C to 80 DEG C for a plurality of hours; adding 0.1-2.5 parts by weight of an accessory ingredient and mixing well after the reaction is finished; in this way, the product is acquired when the filtrated product is stirred and mixed with 5-30 parts by weight of a de-ionized water at the temperature of ranging from 0 DEG C to 50 DEG C. Compared with the prior art, the product prepared by the invention is of short technical process of preparation, simple operation, high reaction efficiency, low production cost and is characterized by high surface activity, high thermal stability and high chemical stability. The surface tension of a water solution of 0.01 percent is lower than 16dyn/m, and the CMC value is lower.

Description

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Claims

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Application Information

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Owner 上海亚孚化工科技有限公司
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