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Method of preparing fluorine and silicon containing hydrophobic and oil repellent fabric finishing agent

A technology for fabric finishing agent and compound, applied in the field of silicone hydrophobic and oil repellent fabric finishing agent and fluorine-containing field, can solve the problems of harming the ozone layer, etc., and achieve the effects of good stability, good permeability and film-forming ability, and simple preparation process

Inactive Publication Date: 2007-08-15
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

0.5% CF for CA129, 17036 3 (CF 2 ) 7 (CH 2 ) 2 Si(NCO) 3 C 2 Cl 3 f 3 Nylon fabrics can be treated with a solution to obtain good water and oil repellency, but since chlorofluorocarbons are used as solvents to harm the ozone layer, it is necessary to find alternative solvents for practical applications

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] 6.0 grams of perfluorohexyl ethyl acrylate, 4.0 grams of ethyl (meth)acrylate, 1.0 grams of methacryloxytrimethoxysilane, 1.0 grams of N-methylolacrylamide, 1.0 grams of cationic surfactant 1231, 3.4 grams of nonionic surfactant Pingping plus O, 0.1 gram of n-dodecanethiol, 0.1 gram of sodium bicarbonate, and 50 grams of deionized water were placed in the emulsification cup of the emulsifier, and pre-emulsified at room temperature for 0.5 hours, A stable white pre-emulsion was formed. The pre-emulsion obtained above is transferred to a four-neck flask equipped with devices such as stirring, nitrogen ventilation, condensation, and temperature measurement. Under the protection of nitrogen, stir and heat up, and at 50°C, add 0.10 g of ammonium persulfate. After 15 minutes of reaction, there will be obvious blue fluorescence. After 2.0 hours of heat preservation, the temperature can be lowered to obtain white lotion. According to AATTC22-1-1989 standard and AATTC118-1983 ...

Embodiment 2

[0044] 7.2 grams of perfluorooctyl ethyl acrylate, 4.5 grams of isooctyl (meth)acrylate, 1.5 grams of acryloxytrimethoxysilane, 1.5 grams of acrylamide, 2.0 grams of cationic surfactant 1631, 3.4 grams of non- Ionic surfactant Pingping plus O-25, 0.2 grams of n-dodecyl mercaptan acetate, 0.2 grams of potassium bicarbonate, 60 grams of deionized water are placed in the emulsification cup of the emulsifier, and pre-emulsified at room temperature for 0.5 hours , forming a stable white pre-emulsion.

[0045] The pre-emulsion obtained above is transferred to a four-neck flask equipped with devices such as stirring, nitrogen ventilation, condensation, and temperature measurement. Under the protection of nitrogen, stir, heat up, and at 55°C, add 0.15 grams of potassium persulfate, and after 12 minutes of reaction, there will be obvious blue fluorescence. lotion. According to AATTC22-1-1989 standard and AATTC118-1983 standard, the water-repellent and oil-repellent properties of the ...

Embodiment 3

[0048] 12.0 grams of perfluorooctyl ethyl acrylate, 8.2 grams of acrylate stearate, 4.5 grams of allyltrimethoxysilane, 1.7 grams of glycidyl methacrylate, 2.0 grams of cationic surfactant 1627, 8.0 grams of non Ionic surfactant Tween-80, 0.2 gram of n-dodecanethiol, 0.1 gram of potassium dihydrogen phosphate, and 120 grams of deionized water were placed in the emulsification cup of the emulsifier, and pre-emulsified at room temperature for 0.5 hour to form a stable White pre-emulsion.

[0049] The pre-emulsion obtained above is transferred to a four-neck flask equipped with devices such as stirring, nitrogen ventilation, condensation, and temperature measurement. Under the protection of nitrogen, stir, heat up, and at 70°C, add 0.30 g of ammonium persulfate, after 6 minutes of reaction, blue fluorescence appears, and after 1.0 hour of heat preservation, the temperature can be lowered to obtain a white color with blue fluorescence. lotion. According to AATTC22-1-1989 standar...

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Abstract

The invention discloses a method for preparing fluorine hydrophobic oil-repellent fabric finishing agent, wherein the finishing agent is lacte emulsion with blue fluorescence. And the preparation comprises that using fluorine monometer, hydrocarbons unsaturated monometer, acid monometer and functional monometer as material, with inducer, adjusting agent, buffer agent and emulsifier, via emulsion polymerization method to be composed to obtain needed finishing agent. The inventive finishing agent has better hydrophobic oil-repellent effect, high stability and high yield, or the like.

Description

(1) Technical field [0001] The present invention relates to a fluorine-containing, silicon-containing hydrophobic and oil-repellent fabric finishing agent synthesized by emulsion copolymerization using fluorine-containing monomers, silicon-containing monomers, hydrocarbon unsaturated monomers, and functional monomers as raw materials and its preparation method. (2) Background technology [0002] Fluorine-containing fabric finishing agent is an internationally recognized excellent fabric finishing agent. It has excellent performance and unique use, has great development prospects and promotion value, and has attracted the attention of the world. Its outstanding performance is characterized by excellent water and oil repellency, air permeability, washability, antifouling and easy decontamination; high surface activity and excellent performance in various environments such as strong acid, strong alkali, high temperature and high radiation. Very high stability. Because the flu...

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
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Application Information

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IPC IPC(8): D06M15/277C08F220/22C08F220/10C08F2/38C08F2/28C08F4/30
Inventor 施介华严巍王桂林王纪康
Owner ZHEJIANG UNIV OF TECH
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