Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation method and application of oil-water separation fabric with hydrophilic and oleophobic properties modified by titanium oxide compound

A titanium oxide compound, oil-water separation technology, applied in separation methods, chemical instruments and methods, liquid separation, etc., can solve the problems of insufficient stability of oil-water separation omentum, unable to withstand long-term water erosion, poor water retention of fabric substrates, etc. , to achieve the effects of low preparation cost, good stability and water retention, and high oil-water separation efficiency

Inactive Publication Date: 2016-10-05
BEIHANG UNIV
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Oil-water separation using omentum coated with hydrogel material has made great progress in solving the problem of oil pollution separation net or omentum, but due to the property of water-swelling hydrogel material, it cannot withstand long-term This makes the hydrogel material easy to fall off from the screen substrate, resulting in insufficient stability of the oil-water separation mesh, thus limiting its application.
[0006] In order to overcome this shortcoming, the Chinese invention patent CN102350094A discloses a porous mesh fabric mesh substrate based on a micro-nano hierarchical structure, such as stainless steel, copper, aluminum, iron or titanium metal fabric mesh, etc., on which a nanorod array structure is grown. Make it superhydrophilic and superoleophobic, although the stability is improved, but the water retention of the fabric substrate is poor
[0007] Therefore, there are still considerable challenges in achieving stable, efficient, and environmentally friendly fabrication of water-oil separation devices.

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method and application of oil-water separation fabric with hydrophilic and oleophobic properties modified by titanium oxide compound
  • Preparation method and application of oil-water separation fabric with hydrophilic and oleophobic properties modified by titanium oxide compound
  • Preparation method and application of oil-water separation fabric with hydrophilic and oleophobic properties modified by titanium oxide compound

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1: Adopt the preparation method provided by the invention to prepare oil-water separation fabric, such as Image 6 As shown, it specifically includes the following steps:

[0032] (1) At room temperature, weigh 3ml of tetrabutyl titanate and pour it into a beaker, then add 15ml of absolute ethanol, stir evenly, add 3ml of glacial acetic acid to adjust the pH and stir magnetically for 1 hour to obtain solution A.

[0033] (2) Weigh 15ml of absolute ethanol and 15ml of ultrapure water, mix well to obtain solution B; slowly pour solution B into solution A which is being magnetically stirred. After mixing was complete seal and continue stirring for 0.5 hours. The resulting solution was sealed and aged for 12 hours for use.

[0034] (3) Put the fabric into the aging solution in step (2) and soak for 1 hour. After taking it out, it is dried at room temperature for 5 hours to obtain the superhydrophilic and superoleophobic oil-water separation fabric modified wit...

Embodiment 2

[0041] The hydrophilic and oleophobic fabric of the micro-nano hierarchical structure in this embodiment is made by the following steps, as Image 6 As shown, it specifically includes the following steps:

[0042] (1) At room temperature, weigh 3ml of tetrabutyl titanate and pour it into a beaker, then add 30ml of absolute ethanol, stir evenly, add 9ml of glacial acetic acid to adjust the pH and magnetically stir for 5 hours to obtain solution A.

[0043] (2) Weigh 150ml of absolute ethanol and 30ml of ultrapure water, mix well and slowly pour into solution A that is being stirred by magnetic force in step (1), seal it after mixing and continue stirring for 3 hours. The resulting solution was sealed and aged for 12 hours for use.

[0044] (3) Put the fabric into the aging solution in step (2) and soak for 1 hour. After taking it out, it is dried at room temperature for 5 hours to obtain the superhydrophilic and superoleophobic oil-water separation fabric modified with titani...

Embodiment 3

[0049] The oil-water separation fabric is prepared by the preparation method provided by the present invention. The oil-water separation fabric has a micro-nano hierarchical structure and is an omentum with hydrophilic and oleophobic properties. The preparation method specifically includes the following steps:

[0050] (1) At room temperature, weigh 3ml of tetrabutyl titanate and pour it into a beaker, then add 15ml of absolute ethanol, stir well, add 3ml of glacial acetic acid to adjust the pH and stir magnetically for 5 hours.

[0051] (2) Weigh 150ml of absolute ethanol and 15ml of ultrapure water, mix well and slowly pour into the solution being magnetically stirred in step (1), seal it after mixing and continue stirring for 0.5 hours. The resulting solution was sealed and aged for 120 h for use.

[0052] (3) Put the fabric into the aging solution in step (2) and soak for 1 hour. After taking it out, it is dried at room temperature for 5 hours to obtain the superhydrophil...

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
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a preparation method and application of hydrophilic-oleophobic oil-water separation fabric modified by titanium oxides, and relates to the technical fields of chemistry and chemical engineering, and functional materials. According to the method, titanium oxides with super hydrophilic and underwater super oleophobic characteristics are modified on a fabric base, so that the super hydrophilic and super oleophobic effects are achieved, oil-water separation is realized, and the underwater oil and water separation performance is high. The oil and water separation characteristic of the oil-water separation fabric is determined by a composite structure formed by the fabric with a micron structure and nano-scale titanium oxides. The hydrophilic property of the fabric disclosed by the invention is formed under an extremely mild condition, and the fabric has the characteristics of having an underwater self-cleaning effect, and being stable to water and friendly to environment. The preparation method disclosed by the invention is low in cost, high in speed, simple and convenient. Theoretical direction and technical support are provided for promoting and controlling development and application of apparatuses in the fields of filtration and separation.

Description

technical field [0001] The invention relates to the technical fields of chemical engineering and functional materials, in particular to a preparation and application method of a fabric with hydrophilic and oleophobic properties that can be used for oil-water separation. Background technique [0002] Oil-water separation is a work of great significance in production and life. At present, water pollution, especially oil pollution, occurs frequently. According to the content of oil and water, it can be roughly divided into two categories: oily sewage and watery waste oil. Among them, oily sewage comes from a wide range of sources, such as oil spills, ship ballast water, land mining of petroleum ore, and food, textile, mechanical processing, and tanning. Many industries, such as many industries, will discharge a large amount of oily sewage into the environment. Oily sewage endangers human health and safety, pollutes the environment, and destroys the ecological balance. Therefor...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): D06M11/46B01D17/022
Inventor 田东亮郑曦郭振燕张孝芳翟锦江雷
Owner BEIHANG UNIV