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 finis

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

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0024] Example 1: Durable superhydrophobic and superoleophobic textile finishing agent A

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

Example Embodiment

[0026] Example 2: Durable super-hydrophobic and super-oleophobic textile finishing agent B

[0027] 5g of tetraethoxysilane silane was slowly added dropwise to the mixed solution of 300mL of ethanol and 30mL of ammonia, and reacted for 24h. The supernatant was removed by centrifugation and dried. Wash the silicon balls with ethanol, repeat centrifugation, drying and washing 5 times, and dry at 80 degrees overnight. 1g of silica balls, 5g of fluoropolyether with molecular weight of 1000, 2g of TDI, 0.1g of dibutyltin dilaurate were dispersed in 100mL of acetone to obtain durable superhydrophobic and superoleophobic textile finishing agent B. Immerse 1g of cotton cloth in the above durable super-hydrophobic and super-oleophobic textile finishing agent B for 5 hours, put the soaked cotton fabric in an oven at 80°C for 30 min, and 120°C for 24 hours to obtain super-hydrophobic and super-oleophobic textile B.

Example Embodiment

[0028] Example 3: Durable super hydrophobic and super oleophobic textile finishing agent C

[0029] 5g of tetraethoxysilane silane was slowly added dropwise to the mixed solution of 300mL of ethanol and 30mL of ammonia, and reacted for 24h. The supernatant was removed by centrifugation and dried. Wash the silicon balls with ethanol, repeat centrifugation, drying and washing 5 times, and dry at 80 degrees overnight. 1g of silica balls, 10g of fluoropolyether with a molecular weight of 2000, 2g of TDI, 0.1g of dibutyltin dilaurate were dispersed in 100mL of acetone to obtain a durable superhydrophobic and superoleophobic textile finishing agent C. 1g of cotton cloth was immersed in the aforementioned durable superhydrophobic and superoleophobic textile finishing agent C for 5h, and the soaked cotton fabric was placed in an oven at 80°C for pre-baking for 30min and 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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