Fluorosurfactant and its preparation method and application

A surfactant and fluoroalkyl technology, which is applied in the field of fluorine-containing surfactants and their preparation, can solve the problems of increased production threshold of fluorosurfactants, unfavorable industrial production, complex production process, etc., and achieve easy control of molecular structure, The effect of lowering the preparation threshold and making the preparation method efficient and safe

Active Publication Date: 2021-11-30
江门市华熊新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as we all know, phosphorus oxychloride is very easy to absorb moisture, and when it absorbs moisture, it will release heat significantly. If the heat cannot be removed in time, it will cause a fire, which is extremely dangerous; phosphorus oxychloride is not only extremely toxic and volatile, but also due to side reactions If the produced hydrogen chloride is not effectively absorbed and separated, it will greatly corrode the inner wall of the reaction kettle and the stirring paddle, resulting in complex production process, sudden increase in cost and decline in product quality
At present, only fluorine chemical giants such as Daikin and DuPont can adopt similar schemes for large-scale production, which greatly increases the production threshold of fluorosurfactants, which is obviously not conducive to industrial production

Method used

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  • Fluorosurfactant and its preparation method and application
  • Fluorosurfactant and its preparation method and application
  • Fluorosurfactant and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0061] (1) Preparation of surfactant containing monofluorocarbon chain:

[0062]

[0063] (2) Preparation of surfactant containing two fluorocarbon chains:

[0064]

[0065] (3) Preparation of surfactant containing trifluorocarbon chain:

[0066]

[0067] in, Can be the following fluorine-containing (meth)acrylate monomers:

[0068]

[0069] Among them, unit amine H 2 N-R can be aliphatic amine (n-octylamine, dodecylamine, octadecylamine, etc.) or polyether monoamine (JEFFAMINE series polyether monoamine, such as M2070, M1000, etc.), the specific structure is as follows:

[0070]

[0071] Diamine H 2 N-R-NH 2 It can be aliphatic diamine (such as ethylene diamine, butylene diamine, hexamethylene diamine, octyl diamine, etc.) or polyether diamine (such as Huntsman JEFFAMINE series polyether diamine), the specific structure is as follows:

[0072]

[0073] Triamine It can be aliphatic amine (such as tris(2-aminoethyl)amine) or polyether triamine (such a...

Embodiment 1

[0076] Embodiment 1: Preparation of surfactant containing monofluorocarbon chain

[0077] At room temperature, throw 129.24 grams of n-octylamine into a four-necked flask equipped with a stirring device, start stirring, and add 418.00 grams of trifluorooctyl acrylate dropwise while stirring at room temperature, and control the rate of addition to ensure that the temperature of the reaction system does not exceed 60°C . After dropping, keep warm at 40°C and 50°C for 1 hour respectively, and return to room temperature (25°C) after the warming is over. When the temperature reaches room temperature, slowly add 148.11 grams of phthalic anhydride, and control the reaction temperature not to exceed 60° C. by controlling the feeding speed. After throwing phthalic anhydride, keep warm at 80°C and 100°C for 1 hour respectively. After the heat preservation is completed, when the temperature is lowered to below 80°C, it is diluted with 100 g of isopropanol and 274 g of deionized water, ...

Embodiment 2

[0079] Embodiment 2: the preparation of the surfactant containing two fluorocarbon chains

[0080] At room temperature, throw 116.20 grams of 1,6-hexanediamine into a four-necked flask equipped with a stirring device, start stirring, and add 836.00 grams of trifluorooctyl acrylate dropwise while stirring at room temperature, and control the rate of addition to ensure the temperature of the reaction system Do not exceed 60°C. After dropping, keep warm at 40°C and 50°C for 1 hour respectively, and return to room temperature (25°C) after the warming is over. When the temperature reaches room temperature, slowly add 296.22 grams of phthalic anhydride, and control the reaction temperature not to exceed 60° C. by controlling the feeding speed. After throwing phthalic anhydride, keep warm at 80°C and 100°C for 1 hour respectively. After the heat preservation is completed, when the temperature is lowered to below 80°C, it is diluted with 200 g of isopropanol and 454 g of deionized w...

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Abstract

The invention discloses a fluorine-containing surfactant and its preparation method and application. The preparation method of the surfactant is to react a fluorocarbon acrylate compound with an amine compound and then react with an acid anhydride to obtain a fluorine-containing surfactant. Chain surfactants, this reaction can prepare a new type of fluorosurfactant containing 1 to 3 fluorocarbon chains by using different unit amines, diamines and triamines. This new type of surfactant has excellent The characteristics of reducing the surface tension of the liquid, the preparation method has the advantages of easy to obtain raw materials, easy structure control, high reaction yield and good product characteristics. At the same time, the preparation method avoids the use of phosphorus oxychloride or phosphorus trichloride. Pollution and high-risk chemical materials reduce the threshold for the preparation of fluorine-containing surfactants, no by-products are eliminated during the reaction process, and production equipment will not be corroded, which is especially helpful for industrial production.

Description

technical field [0001] The invention relates to the field of surfactants, in particular to fluorine-containing surfactants and their preparation methods and applications. Background technique [0002] Surfactants have both hydrophilic and lipophilic groups, which can significantly reduce the surface (interfacial) tension of the dispersion. Fluorosurfactants are a class of special surfactants. Compared with traditional surfactants, they have low surface tension, excellent high temperature and low temperature resistance, less dosage, water repellency, oil repellency and antifouling properties, etc. With significant advantages, it has been widely used in oil exploration, pesticides, coatings, inks, adhesives and other fields as wetting agents, defoamers, dispersants and emulsifiers, and household products. [0003] According to the existing published patent technology reports, phosphorus oxychloride (POCl 3 ) react with fluoroalkyl alcohol or fluoroalkylthiol to obtain a mixt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01F17/22B01F17/28B01F17/42C07C231/02C07C233/49C09K8/584C08G69/48C09K23/22C09K23/28C09K23/42
CPCC07C231/02C07C233/49C07C227/06C09K8/584C08G69/48C09K23/00C09K23/16
Inventor 翁义湖
Owner 江门市华熊新材料有限公司
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