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Preparation method of super-hydrophobic magnetic polyurethane/ferroferric oxide composite material

A technology of ferroferric oxide and composite materials, which is applied in the field of preparation of superhydrophobic magnetic polyurethane/ferroferric oxide composite materials, which can solve the problems that the adsorption materials cannot be reused after oil-water separation and recovery, and the adsorption capacity of oil-water separation materials is poor.

Inactive Publication Date: 2016-01-06
仇颖超
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem mainly solved by the present invention: Aiming at the disadvantages that the bionic interface oil-water separation material has poor adsorption capacity, large-area oil-water separation and recovery cannot be realized, and the adsorption material cannot be reused, a polyurethane sponge is used as the substrate, and dopamine is used to fix the tetroxide The method of triiron particles and dodecanethiol constructs micro-nano structures on the surface of the sponge and introduces low surface energy substances to prepare sponge composites with superhydrophobic and superoleophilic properties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0017] First, FeCl is mixed in a mass ratio of 2:1 3 ·6H 2 O and FeCl 2 4H 2 O was stirred and mixed, and dissolved in distilled water, followed by nitrogen into the distilled water, magnetically stirred at 600r / min for 10min to prepare a mixed solution of ferric chloride and ferrous chloride, then the mixed solution was transferred to a three-necked flask, and It continuously feeds nitrogen gas, and after heating up to 60°C, under 600r / min magnetic stirring, dropwise add hydrochloric acid solution with a mass fraction of 50% at a rate of 3mL / min, adjust the pH to 3, and then place it under 70KHz ultrasonic vibration Treat for 50 minutes; prepare the ferric oxide precursor, then transfer the ferric oxide precursor to a polytetrafluoroethylene-lined high-pressure reactor, heat up to 160°C and react for 5 hours. After the reaction is completed , the product was washed twice with distilled water and centrifuged at 1000r / min, the lower precipitate was collected and washed with ...

example 2

[0019] First, FeCl is mixed in a mass ratio of 2:1 3 ·6H 2 O and FeCl 2 4H 2 O was stirred and mixed, and dissolved in distilled water, followed by nitrogen into the distilled water, magnetically stirred at 700r / min for 12min to prepare a mixed solution of ferric chloride and ferrous chloride, then the mixed solution was transferred to a three-necked flask, and It continuously feeds nitrogen gas, and after heating up to 62°C, under 700r / min magnetic stirring, dropwise add hydrochloric acid solution with a mass fraction of 50% at a speed of 3mL / min, adjust the pH to 3, and then place it under 75KHz ultrasonic vibration Treat for 55 minutes; prepare the ferric oxide precursor, then transfer the ferric oxide precursor to a polytetrafluoroethylene-lined high-pressure reactor, heat up to 165°C and react for 5 hours. After the reaction is completed , the product was washed twice with distilled water and centrifuged at 1100r / min, the lower precipitate was collected and washed with...

example 3

[0021] First, FeCl is mixed in a mass ratio of 2:1 3 ·6H 2 O and FeCl 2 4H 2O was stirred and mixed, and dissolved in distilled water, followed by nitrogen into the distilled water, magnetically stirred at 800r / min for 15min to prepare ferric chloride and ferrous chloride mixed solution, then the mixed solution was transferred to a three-necked flask, and It continuously feeds nitrogen gas, and after heating up to 65°C, under 800r / min magnetic stirring, dropwise add hydrochloric acid solution with a mass fraction of 50% at a speed of 3mL / min, adjust the pH to 4, and then place it under 80KHz ultrasonic vibration Treat for 60 minutes; prepare the ferric oxide precursor, then transfer the ferric oxide precursor to a polytetrafluoroethylene-lined high-pressure reactor, heat up to 170°C and react for 6 hours. After the reaction is completed , the product was washed 3 times with distilled water, and centrifuged at 1200r / min, the lower precipitate was collected and washed with de...

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Abstract

The invention relates to a preparation method of a super-hydrophobic magnetic polyurethane / ferroferric oxide composite material, and belongs to the field of modification materials. Aiming at the shortcomings that an oil-water separation material on a bionic interface is lower in adsorption capacity, separation and recycling of a large area of oil and water cannot be realized, and an adsorption material cannot be repeatedly used, the preparation method is used for preparing a sponge composite material with super-hydrophobic and super-oleophilic characteristics by taking polyurethane sponge as a base body, fixing ferroferric oxide particles and dodecanethiol by dopamine, constructing a micro-nano structure on the surface of the sponge and introducing a low-surface-energy substance into the surface of the sponge. Therefore the composite material has the performances of being high in oil absorption capacity, selectively separating an oil-water mixture, quickly recycling an oil product and being recyclable.

Description

technical field [0001] The invention relates to a preparation method of a superhydrophobic magnetic polyurethane / ferric oxide composite material, belonging to the field of modified materials. Background technique [0002] In modern society, the rapid economic development has produced a large amount of industrial water resources polluted by organic matter. Similarly, marine pollution incidents such as oil spills are prone to occur in the process of oil extraction, transportation, and storage. These oil-polluted water sources have caused great damage to the ecological environment. How to quickly and efficiently separate oil-water from oil-polluted water sources has attracted widespread attention from governments and the public. The methods for oil-water separation mainly include centrifugal method, gravity method, adsorption method, flotation method, biological oxidation method and chemical method. When choosing an oil-water separation method, factors such as the water treatm...

Claims

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Application Information

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IPC IPC(8): B01J20/26B01J20/30C08L75/04C08K9/04C08K3/22B01D17/022C02F1/40C02F1/28
Inventor 仇颖超高力群
Owner 仇颖超
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