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Emulsion water of finishing agent for textile containing fluorin

A technology of fluorine-containing fabrics and water emulsions, which is applied in fiber processing, textiles and papermaking, etc., can solve the problems of lower ignition point of water emulsions, adverse effects on the personal safety of craftsmen, incomplete emulsification, etc., and achieve uniform distribution of emulsion particles and excellent repellency Water and oil repellency, good storage stability

Inactive Publication Date: 2007-05-09
JUHUA GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of organic solvents will also lead to an increase in the VOC value (volatile organic compounds) of the final aqueous emulsion and a decrease in the ignition point of the aqueous emulsion, which will also cause adverse effects on the environment and the personal safety of the craftsmen to a certain extent during the finishing process.
[0006] Furthermore, due to the large specific gravity of the perfluoroalkyl acrylate monomer (relative to the water density of about 1.5), it is difficult or incomplete to emulsify only by ordinary mechanical stirring devices.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Perfluoroalkyl acrylate (perfluorocarbon number is 6, 8, 10 or 12) 10g, stearyl methacrylate 5g, N hydroxyacrylamide 0.8g, butyl methacrylate 4g, methyl ethyl ketone 3g, a Dipropylene glycol 7g, OP-101.03g, cetyltrimethylammonium bromide 1.33g, potassium persulfate 0.6g, dodecyl mercaptan 0.1g, deionized water 65g, placed in a Emulsify at 40°C for 30 minutes in a 100ml three-necked flask with a reflux tube and a nitrogen device, raise the temperature to 65°C with stirring, initiate polymerization for 5 hours, and obtain a white emulsion with bluish fluorescence. Diluted to a concentration of 2g / 100ml, dried at 120°C for 2 minutes and baked at 160°C for 2 minutes. After testing, the white cotton cloth is water-repellent to grade 60 and oil-repellent to grade 6, and the white plain cotton cloth is water-repellent to grade 90 and oil-repellent to grade 7 (repellent Water test refers to national standard GB4745-1984, oil repellency test refers to AATCC118-1998)

Embodiment 2

[0031] Perfluoroalkyl acrylate 10g, stearyl methacrylate 6g, N hydroxyethyl acrylate 0.5g, butyl acrylate 1g, acetone 8g, isopropanol 2g, TX-11 and TX-13 were 0.7 and 0.3g, 0.6g of cetyltrimethylammonium bromide, 55g of deionized water, 0.1g of dodecyl mercaptan, and 0.05g of glacial acetic acid were pre-emulsified in a container at 40°C for 3 minutes by ultrasonic waves, and then the emulsion Place in a 100ml three-neck flask equipped with a stirring paddle, a thermometer, a reflux tube, and a nitrogen device, emulsify at 40°C for 10min, add 0.25g of azobisisobutylamidino hydrochloride aqueous solution under stirring, and heat up to 60°C ℃, initiate polymerization and keep warm at 65 ℃ for 4 hours to obtain a white emulsion with bluish fluorescence. The emulsion is diluted to 2g / 100ml, dried at 120°C for 2 minutes, baked at 160°C for 1.5 minutes, tested with white plain polyester cotton cloth for water repellency level 100 and oil repellency level 5; diluted to 5g / 100ml, drie...

Embodiment 3

[0033] Perfluoroalkyl acrylate 10g, octadecyl acrylate 5g, N hydroxyethyl acrylate 0.5g, 2 hydroxycyclohexyl acrylate 0.5g, butyl acrylate 1g, acetone 9g, isopropanol 2g, NP-8 and 0.6 and 0.4g of NP-10, 0.5g of hexadecyltrimethylammonium bromide, 55g of deionized water, and 0.05 of glacial acetic acid were pre-emulsified in a container at 40°C for 5 minutes by ultrasonic waves, and then the emulsion was placed in a belt In a 100ml three-necked flask with a stirring paddle, a thermometer, a condensing reflux tube, and a nitrogen device, emulsify at 40°C for 10 minutes, add 0.25g of azobisisobutylamidino hydrochloride aqueous solution under stirring, and add a metered amount of metachloride 1 g of ethylene was heated up to 50°C for 2 hours, and then kept at 65°C for 4 hours to obtain a white emulsion with bluish fluorescence. The emulsion is diluted to 2g / 100ml, dried at 120°C for 2 minutes, baked at 160°C for 1.5 minutes, tested with white plain polyester cotton cloth for water...

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PUM

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Abstract

The present invention relates to a fabric finishing agent water emulsion, in particular, it relates to a fabric finishing agent water emulsion containing acrylic perfluoroalkyl ester. Its composition includes (by wt%) 10-40% of comonomer mixture formed from at least (methyl) acrylic perfluoroalkyl ester and (methyl) acrylic straight chain alkyl ester, 10-20% of solvent, 30-70% of deionic water, 1.0-5.0% of emulsifier and small quantity of molecular weight regulating agent.

Description

technical field [0001] The invention relates to an aqueous fabric finishing agent emulsion, in particular to an aqueous fabric finishing agent emulsion containing perfluoroalkyl acrylate. Background technique [0002] Utilizing the low surface energy characteristics of perfluoroalkyl acrylate copolymers, the surface treatment of perfluoroalkyl acrylate copolymers can endow all kinds of fabrics, paper and other materials with excellent surface water and oil repellent finishing effects, and maintain the original material Some good air permeability. In terms of form, the water and oil repellent of perfluoroalkyl copolymers is mainly water-dispersed emulsion type. [0003] As we all know, the perfluoroalkyl acrylate monomer polymer directly forms a film, has a very low surface energy, and has good water and oil repellency effects. After the material is formed into a film, the water and oil repellent effect declines or decays very low and slowly, which i...

Claims

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Application Information

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IPC IPC(8): D06M15/277C08F220/10C08F2/22
Inventor 王亮吴周安陈向荣张庆华
Owner JUHUA GRP
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