A novel fluorine-containing betaine surfactant and its preparation method and application

A technology of surfactant and betaine, which is applied in the field of fluorine-containing betaine surfactant and its preparation, can solve the problems of environmental pollution, poor activity, high cost, etc., and achieve the effect of high surface activity, low cost and easy operation

Active Publication Date: 2021-04-13
SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above-mentioned deficiencies in the prior art, the present invention provides a novel fluorine-containing betaine-type surfactant, which uses a plurality of non-bioaccumulative and degradable short fluorine chains to replace typical long fluorocarbon chains to realize fluorocarbon surface Active agent greening, solving the problems of existing fluorine-containing surfactants such as refractory degradation, environmental pollution, poor activity and high cost

Method used

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  • A novel fluorine-containing betaine surfactant and its preparation method and application
  • A novel fluorine-containing betaine surfactant and its preparation method and application
  • A novel fluorine-containing betaine surfactant and its preparation method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0034]Method for preparing novel fluoro-containing carboxyl betaine surfactants based on octopylol:

[0035]1) Take 26.5 ml of triethanolamine in 30 ml of DMF, slowly drop 56.65 ml of dichloride when it is low in low temperatures (0 ~ 15 ° C) with a constant pressure drip funnel, and the mixture is increased to 35 ° C for about 1 h. The temperature was warmed to 60 ° C for about 4 h, stopped the reaction, washed the reaction liquid with an aqueous solution of the inorganic base, adjusted the pH of 8 or so, stationary, separation, and the lower oil liquid is three (2-chloroethyl) amine. RMB analysis,figure 1 Indicated.1H NMR (600 MHz, ChlorOform-D) δ3.52 (T, J = 7.0 Hz, 6H), 2.98 (T, J = 7.0 Hz, 6H).

[0036]2) Take 56 ml of octylfluoropentanol and 16 g of sodium hydroxide in a 250 ml three flask in 100 ml of tetrahydrofuran, thoroughly stirred, 15 ml of 15 ml of constant pressure drops, and add it to the three flasks, warmed to After the reaction was 50 ° C, after the reaction was complet...

Embodiment 2

[0041]Preparation method of novel fluorosulfonic acid-containing betaine surfactant based on octopylol:

[0042]1) Take 26.5 ml of triethanolamine in 30 ml of DMF, slowly drop 56.65 ml of dichloride when it is low in low temperatures (0 ~ 15 ° C) with a constant pressure drip funnel, and the mixture is increased to 35 ° C for about 1 h. The temperature was warmed to 60 ° C for about 4 h, stopped the reaction, washed the reaction liquid with an aqueous solution of the inorganic base, adjusted the pH of 8 or so, stationary, separation, and the lower oil liquid is three (2-chloroethyl) amine.

[0043]2) Take 56 ml of octylfluoropentanol and 16 g of sodium hydroxide in a 250 ml three flask having 100 ml of toluene, thoroughly stir, 15 ml of constant pressure drops, 15ml step 1) The resulting product is slowly added to the three flasks, warmed to The reaction was 50 ° C for 5 h. After the reaction was completed, the solid was removed, washed several different effluents with water, and the lowe...

Embodiment 3

[0047]Method for preparing octopyl fluoride sugar base surfactant based on octopylol:

[0048]1) Take 26.5 ml of triethanolamine in 30 ml of DMF, slowly drop 56.65 ml of dichloride when it is low in low temperatures (0 ~ 15 ° C) with a constant pressure drip funnel, and the mixture is increased to 35 ° C for about 1 h. The temperature was warmed to 60 ° C for about 4 h, stopped the reaction, washed the reaction liquid with an aqueous solution of the inorganic base, adjusted the pH of 8 or so, stationary, separation, and the lower oil liquid is three (2-chloroethyl) amine.

[0049]2) Take 56 ml of octylfluoropentanol and 16 g of sodium hydroxide in a 250 ml three flask which is 100 ml of diethyl ether, thoroughly stirring, 15 ml of 15 ml of constant pressure drops can slowly add it to the three flasks, warmed to The reaction was 50 ° C for 5 h. After the reaction was completed, the solid was removed, washed several different effluents with water, and the lower liquid evaporated to evaporat...

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Abstract

The invention discloses a novel fluorine-containing betaine surfactant and its preparation method and application. Alcohol amine compounds and fluorine-containing alcohols are used as raw materials to carry out deprotonation, halogenation and etherification reactions in sequence to obtain fluorine-containing tertiary surfactants. amine, and then carry out quaternization reaction with halides with different hydrophilic groups to obtain the fluorine-containing betaine-type surfactant. The surfactant is easy to degrade, has no bioaccumulation, excellent surface activity, simple reaction mechanism, little environmental pollution, and low cost. Economic added value, and at the same time provide a wide source, cheap and easy-to-get new raw material for the preparation of fluorine-containing surfactants, and also solve the problem of intractable by-products, and provide a new, efficient, cheap, and environmentally friendly fluorine-containing surfactant. Fluorosurfactant has a good application prospect.

Description

Technical field[0001]The present invention belongs to the technical field of a fluorine-containing surfactant, and more particularly to a new type of fluoroproteal-type surfactant and a preparation method thereof.Background technique[0002]Conventional fluorocarbon surfactants represented by perfluorobullic acid have high surface activity, as well as unique hydrophobic oleic, widely used in fluoropolymer production, electroplating, textile and other fields. However, this type of surfactant is poorly degraded, and it is easy to cause biological accumulation, which is a typical persistent organic contaminant. Moreover, conventional fluorocarbon surfactants consume a large amount of electrical energy during the production process, making it extremely high in production cost, difficult to apply.[0003]Beet base surfactant, due to the inner salt structural characteristics in the molecule, but also maintain good surface activity in a wider pH, but also maintain good surface activity, but al...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C229/12C09K23/18C09K23/02C09K23/20C09K23/46
CPCC07C229/12C07C305/10C07C309/14C07F9/091C09K23/00C09K23/14
Inventor 邹伟郑志明张嘉玉陈立义颜杰刘波杨虎郑汶江李颜利
Owner SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
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