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Durable super-hydrophobic and super-oleophobic textile finishing agent and finishing method thereof

A super-hydrophobic and super-oleophobic, textile finishing technology, applied in textiles and papermaking, fiber processing, plant fibers, etc., can solve the problems of adding toxic substances to the finishing agent, high cost, and weak adhesion between the finishing agent coating and the substrate. , to achieve the effect of simple and easy method, overcoming high cost and wide source of raw materials

Active Publication Date: 2015-09-16
GUANGZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention proposes a durable super-hydrophobic and super-oleophobic textile finishing agent, which solves the problem of weak adhesion between the finishing agent coating and the substrate in the prior art, and overcomes the addition of toxic substances in the finishing agent in the prior art and high cost defects

Method used

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  • Durable super-hydrophobic and super-oleophobic textile finishing agent and finishing method thereof
  • Durable super-hydrophobic and super-oleophobic textile finishing agent and finishing method thereof
  • Durable super-hydrophobic and super-oleophobic textile finishing agent and finishing method thereof

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Experimental program
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Effect test

Embodiment 1

[0024] Embodiment 1: durable superhydrophobic superoleophobic textile finishing agent A

[0025] Slowly add 5g of tetraethoxysilane dropwise into the mixed solution of 300mL ethanol and 30mL ammonia water, and react for 24h. The supernatant was removed by centrifugation and dried. Wash the silica spheres with ethanol, repeat centrifugation, drying and washing 5 times, and dry overnight at 80°C. 1g of silicon spheres, 5g of fluorine-containing polyether with a molecular weight of 500, 2g of TDI, and 0.1g of dibutyltin dilaurate were dispersed in 100mL of acetone to obtain durable superhydrophobic and superoleophobic textile finishing agent A. Soak 1g of cotton cloth in the above-mentioned durable superhydrophobic and superoleophobic textile finishing agent A for 5 hours, put the soaked cotton fabric in an oven for pre-baking at 80°C for 30min, and bake at 120°C for 24h to obtain superhydrophobic and superoleophobic textile A.

Embodiment 2

[0026] Embodiment 2: durable superhydrophobic superoleophobic textile finishing agent B

[0027] Slowly add 5 g of tetraethoxysilane silane dropwise into a mixed solution of 300 mL of ethanol and 30 mL of ammonia water, and react for 24 hours. The supernatant was removed by centrifugation and dried. Wash the silica spheres with ethanol, repeat centrifugation, drying and washing 5 times, and dry overnight at 80°C. 1g of silicon spheres, 5g of fluorine-containing polyether with a molecular weight of 1000, 2g of TDI, and 0.1g of dibutyltin dilaurate were dispersed in 100mL of acetone to obtain durable superhydrophobic and superoleophobic textile finishing agent B. Soak 1g of cotton cloth in the above-mentioned durable superhydrophobic and superoleophobic textile finishing agent B for 5 hours, put the soaked cotton fabric in an oven for pre-baking at 80°C for 30min, and bake at 120°C for 24h to obtain superhydrophobic and superoleophobic textile B.

Embodiment 3

[0028] Embodiment 3: durable superhydrophobic superoleophobic textile finishing agent C

[0029] Slowly add 5 g of tetraethoxysilane silane dropwise into a mixed solution of 300 mL of ethanol and 30 mL of ammonia water, and react for 24 hours. The supernatant was removed by centrifugation and dried. Wash the silica spheres with ethanol, repeat centrifugation, drying and washing 5 times, and dry overnight at 80°C. 1g of silicon spheres, 10g of fluorine-containing polyether with a molecular weight of 2000, 2g of TDI, and 0.1g of dibutyltin dilaurate were dispersed in 100mL of acetone to obtain durable superhydrophobic and superoleophobic textile finishing agent C. Soak 1g of cotton cloth in the above-mentioned durable superhydrophobic and superoleophobic textile finishing agent C for 5 hours, put the soaked cotton fabric in an oven for pre-baking at 80°C for 30min, and bake at 120°C for 24h to obtain superhydrophobic and superoleophobic textile C.

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Abstract

The invention provides a durable super-hydrophobic and super-oleophobic textile finishing agent. The durable super-hydrophobic and super-oleophobic textile finishing agent is prepared by mixing the following raw materials: a nano-scale silicon material, fluorine-containing polyether, isocyanate compounds, a catalyst and a solvent. Furthermore, the invention provides a finishing method of textiles by virtue of the durable super-hydrophobic and super-oleophobic textile finishing agent. According to the finishing method, a textile is sprayed or dip-coated with the durable super-hydrophobic and super-oleophobic textile finishing agent, and then the textile is pre-dried and roasted. The durable super-hydrophobic and super-oleophobic textile finishing agent disclosed by the invention is prepared from the readily available materials, is free from a chlorine-containing solvent, and has certain abrasive resistance and washing resistance as well as the super-hydrophobic and super-oleophobic properties. The durable super-hydrophobic and super-oleophobic textile finishing agent disclosed by the invention has significant application prospects in the fields of textile functional finishing and various textile products. The finishing method of textiles with the durable super-hydrophobic and super-oleophobic textile finishing agent is simple and easy to implement.

Description

technical field [0001] The invention relates to the technical field of textile finishing, in particular to a durable superhydrophobic and superoleophobic textile finishing agent, and also relates to a finishing method of the durable superhydrophobic and superoleophobic textile finishing agent. Background technique [0002] On superhydrophobic and superoleophobic surfaces, liquids such as water, surfactant solutions, alcohols, and various organic solvents have a contact angle of more than 150°. The property that liquids are difficult to wet makes superhydrophobic and superoleophobic materials have good application prospects in many fields such as textiles, electronic equipment, automobiles and construction. The property that liquids cannot wet or pollute makes superhydrophobic and superoleophobic textiles self-cleaning, which can be used to prepare disposable shoes, tablecloths, chef clothes, lab coats, tents and other textile products, and can be used for metal, rubber, etc....

Claims

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Application Information

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IPC IPC(8): D06M15/576D06M15/568D06M11/78D06M101/06
Inventor 吴旭王正平陈景远钟细明肖创洪
Owner GUANGZHOU UNIVERSITY
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