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Super oleophilic and super hydrophobic oil-water separation terylene textile preparation method

A technology of oil-water separation and super-hydrophobicity, which is applied in the direction of separation methods, liquid separation, chemical instruments and methods, etc., can solve the problems of large pollution of fluorine-containing substances, and achieve the effect of smooth oil-water separation and excellent super-hydrophobicity

Inactive Publication Date: 2014-07-02
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] For obtaining super-hydrophobic and super-oleophilic functional network, Chinese patent CN100344341C discloses a super-hydrophobic and super-oleophilic oil-water separation network, which uses perfluoroalkylsiloxane to form a superhydrophobic and superoleophilic perfluoroalkylsiloxane film , although the effect is better, but the pollution of fluorine to the environment is greater

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Step 1: Using methanol as a solvent, record it in mass percentage, add 1.0% of the total mass of tetraethyl orthosilicate, and 3.0% of the total mass of ammonia solution; then add 1.0% of the total mass to a concentration of 0.02mol / L Hydrochloric acid solution, neutralize excess ammonia, and react for 1 hour; then, add ammonia solution to adjust the pH close to 8, and age the above solution for 16 hours; then, add hexamethyldisilazide dissolved in n-hexane solution alkane, make the molar ratio of hexamethyldisilazane and tetraethyl orthosilicate 1:0.75, react at 60°C to obtain hydrophobic silica sol, finally, filter the above silica sol and rinse with n-hexane, and dissolve the filtrate Ultrasonic dispersion in n-propanol to obtain hydrophobic silica sol.

[0018] Step 2: immerse the polyester fabric in the silica sol obtained in step 1 for padding treatment, take it out and dry it at 80°C, and finally bake it at 150°C to obtain a superhydrophobic and superoleophilic o...

Embodiment 2

[0020] Step 1: Using methanol as a solvent, record it in mass percentage, add 3% of total mass of tetraethyl orthosilicate, and 3.5% of total mass of ammonia solution; then add 1.4% of total mass to a concentration of 0.02mol / L Hydrochloric acid solution, neutralize excess ammonia, and react for 1 hour; then, add ammonia solution to adjust the pH close to 8, and age the above solution for 16 hours; then, add hexamethyldisilazide dissolved in n-hexane solution alkane so that the molar ratio of hexamethyldisilazane to ethyl orthosilicate is 1:1, react at 60°C to obtain a hydrophobic silica sol, and finally, filter the above silica sol and rinse with n-hexane to dissolve the filtrate Ultrasonic dispersion in n-propanol to obtain hydrophobic silica sol.

[0021] Step 2: Immerse the polyester fabric in the silica sol obtained in step 1 for padding treatment, take it out and dry it at 80°C, and finally bake it at 150°C to obtain a superhydrophobic and superoleophilic oil-water separ...

Embodiment 3

[0023] Step 1: Using methanol as a solvent, record it in mass percentage, add 4.5% of the total mass of tetraethyl orthosilicate to it, and an ammonia solution with an amount of 3.7% of the total mass; then add 1.8% of the total mass at a concentration of 0.02 mol / L hydrochloric acid solution, neutralize excess ammonia water, and react for 1 h; then, add ammonia solution to adjust the pH close to 8, and age the above solution; then, add hexamethyl di Silazane solution, the molar ratio of hexamethyldisilazane and ethyl orthosilicate is 1:1.25, react at 60°C to obtain hydrophobic silica sol; finally, filter the above silica sol and rinse with n-hexane, and The filtrate was dissolved in n-propanol and ultrasonically dispersed to obtain a hydrophobic silica sol.

[0024] Step 2: Immerse the polyester fabric in the silica sol obtained in step 1 for padding treatment, take it out and dry it at 80°C, and finally bake it at 150°C to obtain a superhydrophobic and superoleophilic oil-wa...

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Abstract

The present invention provides a super oleophilic and super hydrophobic oil-water separation terylene textile preparation method, which comprises: preparing a hydrophobic silica sol, carrying out an immersion rolling treatment on a terylene fabric in the hydrophobic silica sol, taking the fabric out, and carrying out drying and baking to obtain the finished product. With the method, a contact angle of the obtained textile and water drop is more than 150 DEG, and a contact angle of the obtained textile and oil drop is close to 0 DEG so as to obtain the terylene textile with a function of oil-water separation.

Description

technical field [0001] The invention relates to a preparation method of textiles, in particular to a preparation method of super-oleophilic and super-hydrophobic oil-water separation polyester textiles. Background technique [0002] With the rapid development of the petroleum industry, oil spill accidents continue to occur. Oil-water separation functional textiles have important application value in river pollution, seawater pollution, etc., and are widely used in daily life, such as kitchen supplies, furniture, etc. All have certain application value. [0003] In order to utilize the waterproof effect of the super-hydrophobic surface, Chinese patent CN102251391A discloses a method for super-water-repellent finishing of textiles, Chinese patent CN101474896A discloses a super-hydrophobic membrane of a composite structure, and Chinese patent CN102407634A discloses a finishing process of waterproof textiles. These patents use the modification of inorganic substances to endow t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/643B01D17/022D06M101/32
Inventor 薛朝华姬鹏婷贾顺田
Owner SHAANXI UNIV OF SCI & TECH
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