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Composite high molecular surfactant, preparation method thereof and application of composite high molecular surfactant in foam coating process

A composite polymer and surfactant technology, applied in textiles and papermaking, fiber treatment, plant fiber, etc., can solve the problems of insufficient guarantee of foam stability, loss of moisture absorption and perspiration ability, and influence on clothing comfort, etc., to achieve The effects of good compactness, increased scope of application, and simple and easy-to-operate production process

Active Publication Date: 2015-08-19
SUZHOU TANGHUA NANO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The three-proofing agent has appeared on the market more than ten years ago, but after finishing the textiles with the three-proofing agent, the three-proofing agent penetrates into the fibers of the fabric, making the fiber lose its hygroscopicity. If the clothing is worn next to the skin, it will lose its moisture absorption. The ability to sweat, and the feel is hard, which affects the comfort of clothing. Therefore, waterproof and anti-fouling fabrics have not been promoted in the clothing market for daily wear.
This requires increasing the amount of liquid carried by the foam, and the increase in the amount of liquid carried will lead to a decrease in the stability of the foam. Therefore, how to simultaneously improve the amount of liquid carried and the stability of the foam has become a difficult problem in the foam dyeing and finishing technology.
[0006] Foam is a thermodynamically unstable system. When the foam is formed, the surface area of ​​the liquid increases, and the surface energy of the system increases accordingly. The surface tension is greatly reduced, which is not only easy to foam, but also conducive to the stability of the foam. However, simply reducing the surface tension cannot fully ensure the stability of the foam. Only when the surface film has a certain strength and can form polyhedral foam, Only by effectively reducing the surface tension of the liquid film can the pressure difference of the surface tension discharge be reduced, preventing the thinning of the liquid film, which is beneficial to the stability of the foam

Method used

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  • Composite high molecular surfactant, preparation method thereof and application of composite high molecular surfactant in foam coating process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Step 1: Preparation of dimethyl ditrifluoropropenyl ammonium chloride

[0046] Weigh a certain amount of trifluoropropene and place it in a reaction kettle, add a certain amount of isopropyl ether and sodium hydroxide, turn on the stirring device, heat to 30°C, keep a constant temperature, and slowly add a certain amount of N,N-di Methylamine, then seal. After constant temperature reaction for 6 hours, stop heating and stirring, slowly release the pressure, then adjust the pH of the solution to 8~9 with hydrochloric acid, filter with suction, wash the filter cake with isopropyl ether for 3~5 times (merge the washing solvent into the filtrate), and then carry out Concentrate until no solvent flows out. After vacuum drying, a transparent orange-red viscous liquid is obtained, which is dimethyl ditrifluoropropenyl ammonium chloride.

[0047] Among them: the molar ratio of trifluoropropene, isopropyl ether, sodium hydroxide, and N,N-dimethylamine is 1:10:0.8:1.

[00...

Embodiment 2

[0059] The parameters of Embodiment 1 are modified as follows, and the rest are the same as in Embodiment 1.

[0060] In step 1, the molar ratio of trifluoropropene, isopropyl ether, sodium hydroxide, and N,N-dimethylamine is 1:11:1:1.2.

[0061] In step 2, the molar ratio of chitosan (calculated by unit body), cerium ammonium nitrate, maleic acid, and dimethyl ditrifluoropropenyl ammonium chloride is 1:0.09:1.8:0.9.

[0062] In step 3, the composite polymer surfactant is mixed with sodium lauryl sulfate, thickener (sodium alginate), three-proofing agent and water in a mass ratio of 1:1.2::0.6:11:100.

[0063] In step 4, the cloth traveling speed is 14m / s, and the drying temperature is 160°C to obtain sample 2.

[0064] After testing, the product quality parameters are as follows: according to water-based grade 5, oil repellency grade 5, water absorption rate 118%, water absorption rate 116s, soft to the touch.

Embodiment 3

[0066] The parameters of Embodiment 1 are modified as follows, and the rest are the same as in Embodiment 1.

[0067] In step 1, the molar ratio of trifluoropropene, isopropyl ether, sodium hydroxide, and N,N-dimethylamine is: 1:9:1.1:0.9.

[0068] In step 2, the molar ratio of chitosan (calculated by unit body), cerium ammonium nitrate, maleic acid, and dimethyl ditrifluoropropenyl ammonium chloride is 1:0.12:2.2:1.2.

[0069] In step 3, the composite polymer surfactant is mixed with sodium lauryl sulfate, thickener (sodium alginate), three-proofing agent and water in a mass ratio of 1:0.9::0.4:9:100.

[0070] In step 4, the cloth travel speed is 12m / s, and the drying temperature is 170°C to obtain sample 3.

[0071] After testing, the product quality parameters are as follows: according to the water level of 5, oil repellency of 5.5, water absorption rate of 105%, water absorption rate of 107s, soft to the touch.

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Abstract

The invention relates to a composite high molecular surfactant, a preparation method thereof and application of the composite high molecular surfactant in a foam coating process. Enabling chitosan, maleic acid and dimethyl 2, 3-trifluoropropenyl ammonium chloride to react at 90 DEG C to 110 DEG C under the action of a catalyst, the composite high molecular surfactant is formed. By compounding the composite high molecular surfactant and a micromolecule surfactant, and then adding a thickener and a three-proofing agent, a foam coating agent with good foaming performance, high solution viscosity, high foam film strength and good compactness is formed, and is applied to the foam coating process in the textile dyeing and finishing industry, the control on foam film thickness can be realized, and the liquid carrying quantity of foam is increased in a certain range, so that the thickness of a single-face coating is increased, the firmness of the coating is strengthened, and the problem that the single-face coating is not washable is solved.

Description

technical field [0001] The invention belongs to the technical field of finishing of textile fabrics, and in particular relates to a composite polymer surfactant, a preparation method thereof and an application in a foam coating process. Background technique [0002] As people's requirements for living standards are getting higher and higher, various functional textiles emerge in an endless stream. Whether you are an adult or a child, it is inevitable that you will accidentally stain your clothes, such as red wine, coffee, milk, vegetable soup, etc., and the more you wipe the stain, the more ugly it will be. If it is in a public place, it will affect the individual. Image, if it is a child, it is more common to make clothes dirty, which often makes mothers busy in order to keep their children clean. Therefore, clothing with waterproof and antifouling functions has a great market prospect. The three-proofing agent has appeared on the market more than ten years ago, but after ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B37/08D06M15/03D06M13/262D06M15/13D06M101/06
Inventor 陈艳珍刘宇清关晋平黄海彬张仁海
Owner SUZHOU TANGHUA NANO TECH
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