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

A technology of fabric finishing agent and compound, which is applied in silicon hydrophobic and oleophobic fabric finishing agent and fluorine-containing field, can solve problems such as harming the ozone layer, achieve good stability, high yield, and simple preparation process

Inactive Publication Date: 2009-04-22
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

CA129, 17036 with 0.5% CF 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

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] 6.0 g of perfluorohexyl ethyl acrylate, 4.0 g of ethyl (meth)acrylate, 1.0 g of methacryloxytrimethoxysilane, 1.0 g of N-methylol acrylamide, 1.0 g of cationic surfactant 1231, 3.4 grams of non-ionic surfactants were added with O, 0.1 grams of n-dodecanethiol, 0.1 grams 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 is formed. The pre-emulsion obtained above is transferred to a four-neck bottle equipped with devices for stirring, nitrogen flow, condensation, and temperature measurement. Under the protection of nitrogen, stir, heat up, and add 0.10 g of ammonium persulfate at 50°C. After 15 minutes of reaction, there will be obvious blue fluorescence. After the temperature is kept for 2.0 hours, the temperature can be lowered to obtain a white with blue fluorescence. Lotion. The water- and oil-repellent properties of the emulsion ...

Embodiment 2

[0044] 7.2 grams of perfluorooctyl ethyl acrylate, 4.5 grams of isooctyl (meth)acrylate, 1.5 grams of acryloxy trimethoxysilane, 1.5 grams of acrylamide, 2.0 grams of cationic surfactant 1631, 3.4 grams of non- Ionic surfactants are added with O-25, 0.2g n-dodecyl mercaptan acetate, 0.2g potassium bicarbonate, 60g deionized water, put in the emulsification cup of the emulsifier, and pre-emulsify at room temperature for 0.5 hours , Forming a stable white pre-emulsion.

[0045] Transfer the pre-emulsion obtained above to a four-necked flask equipped with devices for stirring, venting nitrogen, condensation, and temperature measurement. Under the protection of nitrogen, stir, heat up, and add 0.15 g of potassium persulfate at 55°C. After 12 minutes of reaction, there will be obvious blue fluorescence. After the temperature is kept for 2.0 hours, the temperature can be reduced to obtain a white with blue fluorescence. Lotion. The water- and oil-repellent properties of the emulsion are...

Embodiment 3

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

[0049] The pre-emulsion obtained above is transferred to a four-neck bottle equipped with devices for stirring, nitrogen flow, condensation, and temperature measurement. Under the protection of nitrogen, stir, heat up, and add 0.30 g of ammonium persulfate at 70°C. After 6 minutes of reaction, there will be obvious blue fluorescence. After the temperature is kept for 1.0 hour, the temperature can be lowered to obtain a white with blue fluorescence. Lotion. The water- and oil-repellent properties of the emulsion were measured...

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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PUM

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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 invention relates to a fluorine-containing and 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 preparation thereof method. (2) Background technology [0002] Fluorine-containing fabric finishing agent is internationally recognized as an excellent fabric finishing agent. It has excellent performance and unique uses, has great development prospects and promotion value, and has been attracted worldwide attention. Its outstanding performance is that it has excellent water and oil repellency, air permeability, washing resistance, antifouling and easy decontamination; it has high surface activity and has a variety of environments such as strong acid, strong alkali, high temperature and high radiation. Very high stability. Because the fluorine-contain...

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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Patent Type & Authority Patents(China)
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