Oil-water separation fiber membrane with excellent anti-pollution capability and preparation method thereof

An oil-water separation membrane and fiber technology, which is used in fiber processing, non-woven fabrics, textiles and papermaking, etc., can solve the problems of complex preparation and modification process, low membrane water flux, limited improvement, etc., and achieve high mechanical strength. , The effect of good separation effect and huge application value

Inactive Publication Date: 2016-10-12
CHINA UNIV OF PETROLEUM (EAST CHINA)
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AI Technical Summary

Problems solved by technology

However, the preparation and modification process of these membranes is complicated, and the water flux of the membrane is not high
In addition, the improvement of the anti-fouling performance of the above-mentioned separation membrane is through a single adjustment of the chemical composition of the membrane surface, and the degree of improvement is limited.

Method used

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  • Oil-water separation fiber membrane with excellent anti-pollution capability and preparation method thereof
  • Oil-water separation fiber membrane with excellent anti-pollution capability and preparation method thereof
  • Oil-water separation fiber membrane with excellent anti-pollution capability and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0016] Example 1, 5 ml of dimethylformamide solution was taken, 0.525 g of polyacrylonitrile was added into the dimethylformamide solution, and magnetically stirred at room temperature for 6 hours to obtain a uniformly mixed solution. Take 5 ml of dimethylformamide solution, add 150 g of graphene oxide into the dimethylformamide solution, and disperse in ultrasonic for 2 hours to obtain a uniform mixed solution. 1.75 ml of graphene oxide dispersion was added to the polyacrylonitrile solution, and magnetically stirred for 6 hours to obtain a uniformly mixed solution. Inhale 3ml of solution into a 5ml syringe and install a 20-gauge needle. Put the syringe into the syringe pump of the electrospinning equipment, adjust the advancing speed of the syringe pump to 1ml per hour, and adjust the distance from the needle to the receiver to 8~ 15 cm. Cover the roller receiver with a layer of tinfoil, and adjust the receiver rotation speed to 60 revolutions per minute. Connect the positi...

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Abstract

The invention provides an oil-water separation fiber membrane with an excellent anti-pollution capability and a preparation method thereof and belongs to the technical field of new materials. Polyacrylonitrile and graphene oxide are used as preparation raw materials and a hydrolyzed polyacrylonitrile and graphene oxide compound fiber membrane is prepared through an electrostatic spinning technology and an alkali treatment method. Fibers of the fiber membrane have a lot of fusiform nodes and the nodes are induced through the graphene oxide. Furthermore, the fiber membrane is subjected to alkali treatment so that the hydrophility of the membrane is improved. Dual regulation and control on shape and surface hydrophility of the fiber membraneare carried out so that oil-water latex separation efficiency and anti-pollution performance of the membrane are remarkably improved. The preparation method of the separation membrane is simple and feasible and is safe and environmentally friendly; and the oil-water separation fiber membrane has very good application value and market prospect in the aspect of oil-containing wastewater treatment.

Description

technical field [0001] The invention relates to an anti-pollution oil-water separation material, in particular to an anti-pollution, large-flux fiber oil-water separation membrane and a preparation method thereof, belonging to the technical field of new materials. Background technique [0002] With the development of science and technology and the progress of industry, the demand for various oil products in various countries in the world is increasing rapidly. In the process of oil extraction, transportation and use, a large amount of oily sewage is discharged, and the direct discharge of oily sewage will cause serious harm to the environment and human health. Therefore, the effective treatment of oily sewage is of great significance to environmental protection, oil recovery and water recycling. The oil-water separation membrane, using the sieving of the membrane pore size and the wettability difference between the membrane material and the substance, can separate the oily ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/43D04H1/728D01F6/54D01F1/10D06M11/38D06M11/13D06M101/28
CPCD04H1/728D01F1/10D01F6/54D04H1/43D06M11/13D06M11/38D06M2101/28D10B2505/04
Inventor 薛庆忠张建强潘兴龙何大亮
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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