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A kind of super-hydrophobic textile fabric and its preparation method and application

A superhydrophobic, textile cloth technology, applied in the direction of separation methods, textiles and papermaking, chemical instruments and methods, etc., can solve the problems of low separation efficiency, insufficient material bonding, and difficult collection, etc., and achieve low price and simple preparation method , good adsorption effect

Active Publication Date: 2021-08-10
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, commercial textiles can often adsorb both oil and water, resulting in inefficient separations
[0004] Due to its rich pore structure, rough surface and organic skeleton, polydivinylbenzene has superhydrophobic properties, so it is often used for the adsorption of organic solvents. However, since polydivinylbenzene is a powder material, it is not easy to Therefore, the polydivinylbenzene left behind after processing the environment is still an environmental pollutant. Therefore, some authors use the method of coating to compound polydivinylbenzene with other materials. However, the coating method often leads to the combination of the two materials. not strong enough

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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  • A kind of super-hydrophobic textile fabric and its preparation method and application
  • A kind of super-hydrophobic textile fabric and its preparation method and application
  • A kind of super-hydrophobic textile fabric and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Take 20 mL of tetrahydrofuran and 2 mL of water to mix, then add 2 g of divinylbenzene, then add 0.05 g of azobisisobutyronitrile, and stir the mixed solution at room temperature for 4 h. Ultrasonic cleaning is performed on the textile cloth with ethanol first, and then ultrasonic cleaning is performed on the textile cloth with water, and then put into an oven for drying. The woven cloth was imbibed with the solution, put into a stainless steel reactor with a polytetrafluoroethylene liner, and placed in an oven at 100 °C for 24 h. Afterwards, the woven fabric is cooled at room temperature to evaporate the organic solvent and water.

Embodiment 2

[0034] Measure 40 mL of ethyl acetate, then add 4 g of divinylbenzene, then add 0.10 g of azobisisobutyronitrile, and stir the mixed solution at room temperature for 4 h. Ultrasonic cleaning is performed on the textile cloth with ethanol first, and then ultrasonic cleaning is performed on the textile cloth with water, and then put into an oven for drying. The woven cloth was imbibed with the solution, put into a stainless steel reactor with a polytetrafluoroethylene liner, and placed in an oven at 100 °C for 24 h. Afterwards, the woven fabric is cooled at room temperature to evaporate the organic solvent and water.

Embodiment 3

[0036] Take 30 mL of tetrahydrofuran and 3 mL of water to mix, then add 3 g of divinylbenzene, then add 0.15 g of azobisisobutyronitrile, and stir the mixed solution at room temperature for 5 h. Ultrasonic cleaning is performed on the textile cloth with ethanol first, and then ultrasonic cleaning is performed on the textile cloth with water, and then put into an oven for drying. The woven cloth was imbibed with the solution, put into a stainless steel reactor with a polytetrafluoroethylene liner, and placed in an oven at 110 °C for 48 h. Afterwards, the woven fabric is cooled at room temperature to evaporate the organic solvent and water.

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Abstract

The invention discloses a superhydrophobic textile cloth, a preparation method and application thereof. The method is as follows: under the action of initiator azobisisobutyronitrile, divinylbenzene is polymerized on textile cloth in an organic solvent to generate polydivinylbenzene and superhydrophobic textile cloth. The contact angle of the woven fabric can reach 155.7°, showing superhydrophobic and superoleophilic properties, which can effectively and selectively separate oil-water mixtures. The superhydrophobic textile fabric prepared by the invention can be prepared by a hydrothermal method, has stable structure and performance, and good reproducibility, and can be widely used in the fields of water pollution control, volatile organic compound adsorption and the like.

Description

technical field [0001] The invention belongs to the technical field of functional materials, and in particular relates to a superhydrophobic textile fabric and its preparation method and application. Background technique [0002] With the development of industry and social economy, oil spills and industrial emissions of organic solvents are becoming more and more serious, causing serious damage to the ecological environment. Once these oily pollutants are discharged into the water environment, the dissolved oxygen content in the water will be significantly reduced, the plankton in the water will die due to lack of oxygen, and the taste of fish and shellfish will be changed, which is not suitable for consumption. At the same time, there are many toxic substances in oil and its decomposition products. These substances are ingested, absorbed, and enriched by aquatic organisms in the water body, causing aquatic organisms to deform. [0003] The methods commonly used to remove o...

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): D06M15/233B01D17/022
CPCB01D17/0202D06M15/233D06M2200/12
Inventor 胡芸谢俊张金辉
Owner SOUTH CHINA UNIV OF TECH
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