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Super-hydrophobic glass fiber composite oil-water separation material as well as preparation method and application thereof

A super-hydrophobic glass fiber, oil-water separation technology, applied in semi-permeable membrane separation, chemical instruments and methods, water/sludge/sewage treatment, etc. It can improve the hydrophobic and lipophilic performance, good demulsification effect and good separation effect.

Inactive Publication Date: 2022-05-06
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Second, the existing oil-water separation technology still faces many problems that cannot be overcome, so it brings certain difficulties in use and promotion
However, due to the pressure difference problem, the mixed fiber has a service life problem, which is difficult to be practically applied
Blass et al. (Blass M E.Separation of liquid-liquid dispersion by flow through fiber beds[J].Filtration&Separation,1997.) reported that the combination of hydrophilic glass fiber and stainless steel metal fiber media can improve filtration efficiency, while polytetrafluoroethylene Fibre-combination filter efficiency is poor
Patelsu et al. (Patel S U, Chase G G. Separation of water droplets from water-in-diesel dispersion using superhydrophobic polypropylene fibrousmembranes [J]. Separation and Purification Technology, 2014, 126:62–68.) studied hydrophobic fibers and hydrophilic The reusability performance of non-toxic fibers, found that in the process of repeated use, the strength and filtration efficiency of hydrophobic fibers are not affected, but when the hydrophilic fibers are reused, the oil-water separation is significantly reduced, which is difficult for practical industrial application

Method used

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  • Super-hydrophobic glass fiber composite oil-water separation material as well as preparation method and application thereof
  • Super-hydrophobic glass fiber composite oil-water separation material as well as preparation method and application thereof
  • Super-hydrophobic glass fiber composite oil-water separation material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] (1) Cut an appropriate amount of glass fiber mat, first use ethanol to ultrasonically clean the glass fiber mat for 10 minutes, then wash it with deionized water, and dry it in an oven at 60°C until it is completely dry;

[0040] (2) Dissolving 3g of basic copper carbonate in 250ml volume concentration of 30% ammonia solution, magnetically stirred for 30min until fully dissolved to obtain a basic copper carbonate-ammonia mixed solution;

[0041] (3) Immerse the glass fiber mat cleaned and dried in step (1) in a mixed solution of basic copper carbonate-ammonia water, put it into a reaction vessel, and conduct a hydrothermal deposition reaction at 100°C for 30 minutes to obtain CuO@glass fiber mat; take it out For CuO@glass fiber mat, wash and clean the glass fiber mat with deionized water, and dry it in an oven at 60°C until it is completely dry;

[0042] (4) Add 1 g of polydimethylsiloxane (PDMS) solution into 100 g of n-hexane solution, and stir magnetically for 30 min...

Embodiment 2

[0047] (1) Cut an appropriate amount of glass fiber felt, first use ethanol to ultrasonically clean the glass fiber composite material for 10 minutes, then wash it with deionized water, and dry it in an oven at 60°C until it is completely dry;

[0048] (2) 3g basic copper carbonate was dissolved in 250ml of 30% ammonia solution, and magnetically stirred for 30min until completely dissolved to obtain basic copper carbonate-ammonia mixed solution;

[0049] (3) Immerse the glass fiber mat cleaned and dried in step (1) in a mixed solution of basic copper carbonate-ammonia water, put it into a reaction vessel, and conduct a hydrothermal deposition reaction at 100°C for 30 minutes to obtain CuO@glass fiber mat; take it out For CuO@glass fiber mat, wash and clean the glass fiber mat with deionized water, and dry it in an oven at 60°C until it is completely dry;

[0050] (4) Add 2 g of polydimethylsiloxane (PDMS) solution into 100 g of organic solvent n-hexane solution, and stir magne...

Embodiment 3

[0054] (1) Cut an appropriate amount of glass fiber felt, first use ethanol to ultrasonically clean the glass fiber composite material for 10 minutes, then wash it with deionized water, and dry it in an oven at 60°C until it is completely dry;

[0055] (2) Dissolve 3g of basic copper carbonate in 250ml of 30% ammonia solution, magnetically stir for 30min until completely dissolved, basic copper carbonate-ammonia mixed solution;

[0056] (3) Immerse the glass fiber mat cleaned and dried in step (1) in a mixed solution of basic copper carbonate-ammonia water, put it into a reaction vessel, and conduct a hydrothermal deposition reaction at 100°C for 30 minutes to obtain CuO@glass fiber mat; take it out For CuO@glass fiber mat, wash and clean the glass fiber mat with deionized water, and dry it in an oven at 60°C until it is completely dry;

[0057] (4) Add 5 g of polydimethylsiloxane (PDMS) solution into 100 g of organic solvent n-hexane solution, and stir magnetically for 30 min...

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Abstract

The invention discloses a preparation method and application of a super-hydrophobic glass fiber composite oil-water separation material, and the material preparation method comprises the following steps: dissolving basic cupric carbonate in an alkali solution to obtain a mixed solution I; impregnating a glass fiber felt in the mixed solution I to obtain a CuO glass fiber felt; dissolving polydimethylsiloxane in an organic solvent to obtain a mixed solution II; and soaking the CuO glass fiber felt in the mixed solution II, and carrying out high-temperature curing treatment to obtain the super-hydrophobic glass fiber composite oil-water separation material. The super-hydrophobic glass fiber composite oil-water separation material is prepared by loading a copper oxide crystal and a polydimethylsiloxane (PDMS) solution onto the surface of a glass fiber composite material by using a hydrothermal deposition method and an excessive impregnation method respectively. Due to ultrahigh hydrophobic and oleophylic properties and a superposable combination mode, the material has a good demulsification effect on various emulsified oil, and can be widely applied to oil-water separation operation.

Description

technical field [0001] The invention relates to the technical fields of environmental protection and oil recovery, in particular to a superhydrophobic glass fiber composite oil-water separation material and its preparation method and application. Background technique [0002] As the world's number one energy consumer, petroleum has made an irreplaceable and important contribution to the development of the national economy. During the production and use of petroleum, it often causes environmental pollution, especially the treatment of oil-water mixtures or emulsions, which has always been a difficult pain point in the petroleum industry. More importantly, most offshore oilfields adopt the water flooding development method. With the continuous increase of production years, a large number of oilfields enter the stage of high water content, and oil-water separation technology is required to achieve stable production of liquid and create economic benefits. Effectively separating...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D67/00B01D69/02B01D69/10B01D71/70C02F1/44C02F101/32
CPCB01D71/70B01D69/105B01D67/0079B01D69/02C02F1/44B01D2325/38C02F2101/32
Inventor 何锋杨德志万武波吴重宽方蒋栋陈鹏
Owner ZHEJIANG UNIV OF TECH
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