Unlock instant, AI-driven research and patent intelligence for your innovation.
Fluorine-containing imidazole surfactant and preparation method and application thereof
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A surfactant, fluorine-containing imidazole technology, used in chemical instruments and methods, organic chemistry, transportation and packaging, etc., can solve the problems of product quality decline, easy volatility, and sudden increase in cost.
Active Publication Date: 2021-05-11
江门市华熊新材料有限公司
View PDF10 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
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 hydrogenchloride 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 Using a similar scheme for large-scale production greatly increases the production threshold of fluorosurfactants, which is obviously not conducive to industrial production
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0050] The present embodiment has prepared a kind of imidazole surfactant containing monofluorocarbon chain, and the specific process is as follows:
[0051]
[0052] Specifically, the operation steps are as follows:
[0053] S1. Add 161.63 g of imidazolium amine salt compound dropwise to 418.15 g of fluorocarbonacrylate compound, the temperature does not exceed 60°C during the addition, and after the addition is completed, keep the temperature at 40°C and 50°C for 1 hour each;
[0054] S2, reduce the temperature to room temperature (25°C), add 98.06 grams of maleic anhydride, the temperature does not exceed 60°C during the addition, and keep the temperature at 80°C and 100°C for 1 hour after the addition is completed;
[0055] S3, step S2 is cooled to below 80 ℃ after the insulation finishes, add 297.31 grams of isopropanol and 743.28 grams of water to dilute, add 89.14 grams of N,N-dimethylethanolamine to neutralize;
[0056] S4, cooling to below 40 ℃, 200 mesh filtrati...
Embodiment 2
[0059] The present embodiment prepares a kind of preparation of imidazole surfactant containing double fluorocarbon chain, and the specific process is:
[0060]
[0061] Specifically, the operation steps are as follows:
[0062] S1. Add 190.68 g of imidazolium amine salt compound dropwise to 836.30 g of fluorocarbon acrylate compound, the temperature does not exceed 60°C during the addition, and after the addition is completed, the temperature is kept at 40°C and 50°C for 1 hour each;
[0063] S2, reduce the temperature to room temperature (25°C), add 196.12 grams of maleic anhydride, the temperature does not exceed 60°C during the addition, and keep the temperature at 80°C and 100°C for 1 hour after the addition is completed;
[0064] S3, step S2 is cooled to below 80 ℃ after the insulation finishes, add 556.96 grams of isopropanol and 1392.40 grams of water to dilute, add 178.28 grams of N,N-dimethylethanolamine to neutralize;
[0065] S4, cooling to below 40 ℃, 200 mesh...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
PUM
Property
Measurement
Unit
Surface tension
aaaaa
aaaaa
Login to View More
Abstract
The invention discloses a fluorine-containing imidazole surfactant and a preparation method thereof. The fluorine-containing imidazole surfactant disclosed by the invention can have good surface tension and can be prepared through a safe and efficient process. The fluorine-containing imidazole surfactant has at least one of the following structural formulas as described in the specification, in the formula I or II, Rf is independently fluoroalkyl or hydroxyl-containing substituted fluoroalkyl; Rc is independently selected from a carboxylic acid chain of which the carbon atom number is 2-30 and the tail end is a carboxylic acid group; and X is independently selected from one of Cl, Br, BF4 or PF4. The preparation method comprises the following steps of carrying out Michael addition reaction on a fluorocarbonacrylate compound and an imidazole amine salt compound, reacting with anhydride, and adding alkali for neutralization to obtain the surfactant.
Description
technical field [0001] The invention relates to the technical field of surfactants, in particular to a fluorine-containing imidazole surfactant and a preparation method and application thereof. Background technique [0002] Surfactant is a kind of flexible and versatile fine chemical products with a wide range of uses. It has both hydrophilic and lipophilic groups, which can significantly reduce the surface (interfacial) tension of the dispersion system. Specialty surfactants are a large class of surfactants with specific composition and structure, with special functions, high surface activity, and wide application range. Compared with traditional surfactants, fluorosurfactants have low surface tension, excellent high and low temperature resistance, low dosage, water repellency, oil repellency and antifouling properties, etc. Significant advantages, it has been widely used in oil extraction, pesticides, coatings, inks, adhesives and other fields as wetting agents, defoaming...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More