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Preparation method and application of anionic/cationic fluorocarbon-fluorocarbon surfactant complex system based on short fluorocarbon chains

A surfactant and fluorocarbon surface technology, which is applied in fire prevention equipment, transportation and packaging, chemical instruments and methods, etc., can solve the problems of key performance degradation, low surface activity of fluorosurfactants, complex surfactant structure, etc. It achieves the effects of excellent fire extinguishing performance, excellent surface activity, and fast spreading speed of aqueous film formation

Inactive Publication Date: 2016-06-29
CIVIL AVIATION FLIGHT UNIV OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But at the same time, the shortening of the fluorocarbon chain often leads to a sharp drop in the key performance of the product (Chemosphere129(2015)4-19), and the common fluorosurfactant with simple structure has low surface activity
CN103446943A has proposed the preparation method of the gemini type cationic fluorocarbon surfactant with perfluorobutylsulfonyl fluoride as raw material and the application in the field of aqueous film-forming foam fire extinguishing agent, but this surfactant structure is complicated, and production difficulty and cost are both low. higher

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  • Preparation method and application of anionic/cationic fluorocarbon-fluorocarbon surfactant complex system based on short fluorocarbon chains
  • Preparation method and application of anionic/cationic fluorocarbon-fluorocarbon surfactant complex system based on short fluorocarbon chains
  • Preparation method and application of anionic/cationic fluorocarbon-fluorocarbon surfactant complex system based on short fluorocarbon chains

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preparation example Construction

[0032] A kind of preparation method of anion and cationic fluorocarbon-fluorocarbon surfactant complex system based on short fluorocarbon chain as above, comprises the following steps:

[0033] Step 1. Configure C with deionized water n FM solution;

[0034] Step 2. Configure C with deionized water m h k XR 1 R 2 R 3 solution;

[0035] Step 3, according to a certain proportion of C n FM solution and C m h k XR 1 R 2 R 3 The solutions are mixed and the volume is constant to obtain a compound system of anion and cation fluorocarbon-fluorocarbon surfactants with definite concentration and composition.

[0036] In the preparation method, the molar ratio of the anionic surfactant to the cationic surfactant in the compound system is in the range of 50:1 to 1:50.

[0037] An application of the above-mentioned short fluorocarbon chain-based anion and cationic fluorocarbon-fluorocarbon surfactant compound system in an aqueous film-forming foam fire extinguishing agent.

...

Embodiment 1

[0040] Measure 0.50MC 1 FNa solution 18mL, 0.50MC 4 h 3 I(CH 3 ) 3 Solution 18mL, the two are mixed and then fixed in a 100mL volumetric flask to obtain a total surfactant concentration of 0.18MC 1 FNa-C 4 h 3 I(CH 3 ) 3 (1:1) mixed solution;

[0041] Measure 0.50MC 1 FNa solution 12mL, 0.50MC 4 h 3 I(CH 3 ) 3 Solution 24mL, the two are mixed and then fixed in a 100mL volumetric flask to obtain a total surfactant concentration of 0.18MC 1 FNa-C 4 h 3 I(CH 3 ) 3 (1:2) mixed solution;

[0042] Measure 0.50MC 1 FNa solution 6mL, 0.50MC 4 h 3 I(CH 3 ) 3 Solution 30mL, the two are mixed and then fixed in a 100mL volumetric flask to obtain a total surfactant concentration of 0.18MC 1 FNa-C 4 h 3 I(CH 3 ) 3 (1:5) mixed solution;

[0043] Measure 0.50MC 1 FNa solution 24mL, 0.50MC 4 h 3 I(CH 3 ) 3 Solution 12mL, the two are mixed and then fixed in a 100mL volumetric flask to obtain a total surfactant concentration of 0.18MC 1 FNa-C 4 h 3 I(CH 3 ) ...

Embodiment 2

[0046] With embodiment 1, with 0.50MC 2 FNa solution and 0.50MC 4 h 3 I(CH 3 ) 3 The total concentration of surfactants prepared in the solution is 0.18MC 2 FNa-C 4 h 3 I(CH 3 ) 3 Mixture, C 2 FNa, C 4 h 3 I(CH 3 ) 3 The molar ratio is 1:1, 1:2, 1:5, 2:1, 5:1.

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Abstract

The invention discloses a preparation method and an application of an anionic / cationic fluorocarbon-fluorocarbon surfactant complex system based on short fluorocarbon chains. The structure of an anionic fluorocarbon surfactant and the structure of a cationic fluorocarbon surfactant are special. According to the preparation method of the complex fluorocarbon surfactant, the anionic and cationic fluorocarbon surfactants are directly mixed in certain concentration and in certain proportion. The complex system only contains surfactants which have short fluorocarbon chains and do not belong to lasting organic pollutants, has higher surface activity and can be used for aqueous film forming foam extinguishing agents and has good fire extinguishing performance, and an aqueous solution of the complex system can spread quickly on an oil surface.

Description

technical field [0001] The present invention relates to a preparation method of anion and cationic fluorocarbon-fluorocarbon surfactant composite system based on short fluorocarbon chains whose fluorocarbon chain length is no more than 4 carbons and its application in aqueous film-forming foam fire extinguishing agent application. Background technique [0002] Fluorine chemicals are a large class of chemicals used in many industrial and commercial applications, including adhesives, cleaning agents, coatings, electronic devices, and more. Among them, fluorosurfactants have the characteristics of high surface activity, high physical and chemical stability, and fluorocarbon chains that are both hydrophobic and oil-repellent, and have irreplaceable uses in many fields, such as aqueous film-forming foam fire extinguishing agents, special fabric finishing agents , Special coatings, etc. [0003] The long fluorocarbon chains contained in fluorosurfactants produced and applied on ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F17/00B01F17/26A62D1/02C09K23/00C09K23/26
CPCA62D1/0071C09K23/018
Inventor 贾旭宏伍毅陈现涛贺元骅肖进新贾井运应炳松
Owner CIVIL AVIATION FLIGHT UNIV OF CHINA
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