CN104826363A - Super-hydrophobic super-lipophilic emulsion separating mesh membrane, and production method and application thereof - Google Patents

Super-hydrophobic super-lipophilic emulsion separating mesh membrane, and production method and application thereof Download PDF

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CN104826363A
CN104826363A CN201510219805.XA CN201510219805A CN104826363A CN 104826363 A CN104826363 A CN 104826363A CN 201510219805 A CN201510219805 A CN 201510219805A CN 104826363 A CN104826363 A CN 104826363A
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separation
mixed solution
emulsions
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water
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冯琳
曹莹泽
陈雨宁
刘娜
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Tsinghua University
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Tsinghua University
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Abstract

The invention discloses a super-hydrophobic super-lipophilic emulsion separating mesh membrane, and a production method and an application thereof. The method comprises the following steps: 1, dissolving dopamine hydrochloride and tris(hydroxymethyl)aminomethane in water, and uniformly stirring to obtain a mixed solution A; 2, dipping a fabric net in the mixed solution A, and carrying out a reaction 1 to obtain a polydopamine membrane modified fabric net; 3, dissolving a siloxane precursor, a silane coupling agent 1, a silane coupling agent 2 and a titanium dioxide precursor in an organic solvent, and uniformly stirring to obtain a mixed solution 2; and 4, taking out the fabric net in step 2, washing, dipping the washed fabric net in the mixed solution B, adding water and ammonia water, and carrying out a reaction 2 to obtain the emulsion separating mesh membrane. The emulsion separating mesh membrane has the advantages of non-toxicity, harmlessness, environmental protection, easy cleaning and preservation, repeated use and good stability, can be widely used in separation of oil-water emulsions, and has a good separating effect.

Description

Separation of emulsions nethike embrane of a kind of super-hydrophobic super-oleophylic and preparation method thereof and application
Technical field
The invention belongs to solid material surface modification field, separation of emulsions nethike embrane being specifically related to a kind of super-hydrophobic super-oleophylic and preparation method thereof and application.
Background technology
Because sanitary sewage and industrial wastewater discharge in a large number, and Crude Oil at Sea leakage accident frequently occurs, and water-oil separating is the research emphasis of scientific worker always.The oil-water separation mesh film that present stage utilizes special wellability to prepare, great majority are the primary separation for the simple oil water mixture oil water mixture of autonomous layering (be mainly can).And in the oil water mixture of reality, usually also have a large amount of surfactants, so oil water mixture exists in the form of an emulsion.Therefore, seeking can to the effective breakdown of emulsion of emulsion and the nethike embrane carrying out water-oil separating becomes very important problem simultaneously.
Application number be 201110094312.X, 201110420531.2 Chinese invention patent application, individually disclose utilize dopamine be polymerized modification of surfaces modification method and for the tribological property that improves silica-base film and the method improving solid-phase micro-extraction coating aspect, but the two is all less than the research about surface wettability and water-oil separating.
Application number is 200510040447.2, the Chinese invention patent application of 01118387.X, individually disclose the oil-water separation mesh film preparing a kind of super-hydrophobic super-oleophylic, although the two all has the effect of water-oil separating, weak point is the use of fluorochemical and preparation technology is comparatively complicated.And for example the patent No. be 00110215 and notification number be the Chinese invention patent of 1265931, it is disclosed that and a kind of transition glue ester to be brushed in advance on metal grill, then with high-pressure blast blowing, then spray fluorinated ethylene propylene powder, the technology of last hot-working cooling.The preparation process of this patent of invention is too loaded down with trivial details, is unsuitable for large-scale production.
Summary of the invention
Separation of emulsions nethike embrane that the object of this invention is to provide a kind of super-hydrophobic super-oleophylic and preparation method thereof, this preparation method is simple, the separation of emulsions nethike embrane prepared without fluorine material, mechanicalness is strong, break milk separation efficiency is high and can repeatedly use.
The preparation method of the separation of emulsions nethike embrane of a kind of super-hydrophobic super-oleophylic provided by the present invention, comprises the steps:
1) Dopamine hydrochloride and trishydroxymethylaminomethane are dissolved in the water and stir obtain mixed solution A;
2) fabric web be impregnated in described mixed solution A, carry out reaction 1, obtain the fabric web that poly-dopamine is film modified;
3) siloxane precursors, silane coupler 1, silane coupler 2 and TiO 2 precursor to be dissolved in organic solvent and to stir, obtaining mixed solution B;
4) take out step 2) in fabric web, after cleaning, described fabric web be impregnated in described mixed solution B, and adds water and ammoniacal liquor wherein, carry out reaction 2, obtain described separation of emulsions nethike embrane.
In above-mentioned preparation method, step 1) in, in described mixed solution A, the mass percentage of described Dopamine hydrochloride is 0.1 ~ 10.0%, specifically can be 0.2% ~ 0.6%, 0.1%.
In described mixed solution A, the mass percentage of described trishydroxymethylaminomethane is 0.3 ~ 2.0%, specifically can be 0.4% ~ 0.8%.
The pH value of described mixed solution A is 8.0 ~ 12.0.
In above-mentioned preparation method, step 2) in, described fabric web specifically can be metal fabric net, described metal fabric net be selected from following any one: stainless (steel) wire, copper mesh, iron net, titanium net or aluminium alloy net.
The order number of described fabric web is 500 ~ 1000 orders, specifically can be 600 orders, 800 orders or 1000 orders.
The weaving method of described fabric web be selected from following any one: plain weave, twill weave, plain Dutch braiding, twill Dutch braiding or reverse Dutch weave.
The reaction time of described reaction 1 is 24 ~ 48h, specifically can be 24 ~ 36h.
The reaction temperature of described reaction 1 specifically can be 15-35 DEG C, is preferably 25 DEG C (room temperature).
Before described impregnation steps, described preparation method also comprises the step of cleaning described fabric web, concrete available ethanol and acetone mixed solution (volume ratio is 1:1) clean (as: ultrasonic cleaning) described fabric web, and dry for subsequent use.
In above-mentioned preparation method, step 3) in, described siloxane precursors specifically can be quanmethyl silicate and/or tetraethyl orthosilicate.
The mass percentage of described siloxane precursors is 0.1 ~ 10.0%, specifically can be 1.0% ~ 3.5%.
Described silane coupler 1 specifically can be aminopropyl triethoxysilane;
The mass percentage of described silane coupler 1 is 0.1 ~ 5.0%, specifically can be 0.5% ~ 2.0%.
Described silane coupler 2 specifically can be dodecyl trimethoxy silane and/or n-hexadecyl trimethoxy silane.
The mass percentage of described silane coupler 2 is 0.1 ~ 10.0%, specifically can be 2.0% ~ 4.0%.
Described TiO 2 precursor is butyl titanate.
The mass percentage of described TiO 2 precursor is 0.1 ~ 10%, specifically can be 0.5% ~ 3.0%.
Described organic solvent specifically can be ethanol.
In above-mentioned preparation method, step 4) in, described reaction 2 is reaction.
The reaction time of described reaction 2 is 24 ~ 60h, specifically can be 36 ~ 48h.
The reaction temperature of described reaction 2 specifically can be 15-35 DEG C, is preferably 25 DEG C (room temperature).
Described water, ammoniacal liquor and step 3) described in the volume ratio of organic solvent be 1:(10-12): (53-55), specifically can be 1:11:54.
Described ammoniacal liquor is the catalyst of reaction 2, and described water participates in the process of reaction.
The separation of emulsions nethike embrane of super-hydrophobic super-oleophylic provided by the present invention also belongs to protection scope of the present invention.
The application of separation of emulsions nethike embrane in separation of emulsions of super-hydrophobic super-oleophylic provided by the present invention also belongs to protection scope of the present invention.
Described separation of emulsions is specially the separation of emulsions of water-in-oil type.
Oil phase in described emulsion is selected from following at least one: n-hexane, chloroform, benzinum, benzene, gasoline, diesel oil, vegetable and animals oils and crude oil etc.
First the present invention utilizes mussel biomimetic chemistry to make Dopamine hydrochloride form poly-dopamine film at metal fabric net surface autohemagglutination, utilizes afterwards method, will have breakdown of emulsion and the silica-titania composite pellets of hydrophobic function is modified on nethike embrane by Michael addition reaction.Superhydrophobic property described in the present invention refers to that the apparent contact angle of oil droplet on separation of emulsions nethike embrane of the present invention is greater than 150 °.
The emulsion of separation of emulsions nethike embrane of the present invention to the highly stable water-in-oil type containing exhibiting high surface activating agent has break milk separation effect, and separation of emulsions nethike embrane of the present invention has, and mechanical strength is good and heat endurance is high., the raw material chosen is easy to get, and preparation method is simple, and the advantages such as preparation cost is low, reusable, can prepare on a large scale.
Separation of emulsions nethike embrane provided by the present invention separable Various Complex stable type water-in-oil emulsion, emulsion can also realize being separated by breakdown of emulsion on nethike embrane simultaneously, thus good separating effect, all there is good separating effect to n-hexane, chloroform, benzinum, benzene, gasoline, diesel oil, vegetable and animals oils and crude oil etc.This separation nethike embrane is nontoxic, environmental friendliness, and easy cleaning is preserved, can Reusability, has good stability.
Accompanying drawing explanation
Fig. 1 is the surface topography stereoscan photograph of the separation of emulsions nethike embrane of preparation in embodiment 1.
Fig. 2 is for measuring the shape picture of the separation of emulsions retinal surface that water (2 microlitre) is prepared in embodiment 1 in atmosphere.
Fig. 3 is the separation of emulsions nethike embrane prepared of embodiment 1-3 for separating of the experimental provision of water-in-oil type and experiment effect photo; Wherein respectively be labeled as: the filtrate after 1 water-in-oil emulsion, 2 oil-water separation mesh film, 3 are separated.
Fig. 4 is the Stabilily parameter experiment of water-in-oil emulsion prepared by embodiment 1, is from left to right followed successively by chloroform, toluene, gasoline and bavin water-in-oil emulsion.
Fig. 5 is the thermally-stabilised test experiments of separation of emulsions nethike embrane prepared by embodiment 1.
Detailed description of the invention
Be described method of the present invention below by specific embodiment, but the present invention is not limited thereto, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Experimental technique described in following embodiment, if no special instructions, is conventional method; Described reagent and material, if no special instructions, all can obtain from commercial channels.
The separation of emulsions nethike embrane of embodiment 1, preparation super-hydrophobic super-oleophylic and separation of emulsions effect:
(1) 1000 object stainless (steel) wires are immersed in ultrasonic cleaning 15min in the mixed solution of ethanol and acetone (volume ratio is 1:1), dry under normal temperature;
(2) under room temperature, 240ml water, 0.48g Dopamine hydrochloride and 0.96g trishydroxymethylaminomethane is added in the beaker of 250ml, magnetic agitation mixes, obtain mixed solution, in this mixed solution, the mass percentage of Dopamine hydrochloride is 0.20%, and the mass percentage of trishydroxymethylaminomethane is 0.40%, and solution ph is 8.5;
(3) stainless (steel) wire after step (1) being dried is soaked in the mixed solution that step (2) obtains, and after normal temperature places 48h, taking-up is clean with deionized water rinsing, naturally dries;
(4) under room temperature, add 270ml ethanol, 4.3g tetraethyl orthosilicate in the beaker of 500mL, 2.1g aminopropyl triethoxysilane and 5.8g dodecyl trimethoxy silane, obtain clear solution liquid under magnetic agitation.Stir after 10 minutes, add 7.0g butyl titanate.In this solution, tetraethyl orthosilicate mass percentage is 2.0%, and aminopropyl triethoxysilane mass percentage is 1.0%, and dodecyl trimethoxy silane mass percentage is 2.7%, and the mass percentage of butyl titanate is 2.0%;
(5) stainless (steel) wire of the coated Dopamine hydrochloride after step (3) being dried is soaked in the solution that step (4) obtains, after stirring at normal temperature 30min, add 5mL water and 55mL ammoniacal liquor, after continuing to stir 48h, use ethanol and washed with ether respectively, dry the oil-water separating net namely obtaining super-hydrophobic super-oleophylic.Wherein, water, ammoniacal liquor and solvent (ethanol) volume ratio are: 1:11:54.
The surface topography stereoscan photograph of the separation of emulsions nethike embrane that the present embodiment obtains as shown in Figure 1, can be learnt from Fig. 1: silicon dioxide and titanium dioxide composite Nano bead is grafted to stainless (steel) wire.
The contact angle of separation of emulsions nethike embrane to the water droplet of 2 microlitres that measurement the present embodiment obtains in atmosphere is greater than 150 ° (as shown in Figure 2);
Fig. 5 is the thermally-stabilised test experiments of the separation of emulsions nethike embrane of preparation in embodiment 1, can learn: nethike embrane still ensure that super-hydrophobic character at 160 DEG C from Fig. 5.
The experimental provision shown in Fig. 3 is utilized to carry out separation of emulsions test.Separation of emulsions nethike embrane 2 obtained above is clipped in the middle of fixture, two ends feed glass pipe and discharging glass tube, by emulsion (the volume ratio 114:1 of chloroform Bao Shui, containing class of 6.1mg/mL department 80, magnetic agitation 2 hours) be poured on above-mentioned separation of emulsions nethike embrane by the feed glass pipe of top, emulsion contacts nethike embrane realizes breakdown of emulsion, oil phase (i.e. chloroform) from below discharging glass tube flows out, water is blocked in the upper end being separated nethike embrane simultaneously, obtain the chloroform after being separated, Fig. 3 b) in shown in the bottle of the right, thus reach the object of simultaneously break milk separation.
The separation of emulsions nethike embrane of embodiment 2, preparation super-hydrophobic super-oleophylic and separation of emulsions effect:
(1) 600 object stainless (steel) wires to be immersed in the mixed solution of ethanol and acetone (volume ratio is 1:1) ultrasonic cleaning 15 minutes, to dry under normal temperature;
(2) under room temperature, 240ml water, 0.24g Dopamine hydrochloride and 0.96g trishydroxymethylaminomethane is added in the beaker of 250ml, magnetic agitation mixes, obtain mixed solution, in this mixed solution, the mass percentage of Dopamine hydrochloride is 0.60%, and the mass percentage of trishydroxymethylaminomethane is 0.40%, and solution ph is 8.5;
(3) stainless (steel) wire after step (1) being dried is soaked in the mixed solution that step (2) obtains, and after normal temperature places 24 hours, taking-up is clean with deionized water rinsing, naturally dries;
(4) under room temperature, add 270ml ethanol, 2.2g tetraethyl orthosilicate in the beaker of 500mL, 4.2g aminopropyl triethoxysilane and 8.5g dodecyl trimethoxy silane, obtain clear solution liquid under magnetic agitation.Stir after 10 minutes, add 10.5g butyl titanate.In this solution, tetraethyl orthosilicate mass percentage is 1.0%, and aminopropyl triethoxysilane mass percentage is 2.0%, and dodecyl trimethoxy silane mass percentage is 4.0%, and the mass percentage of butyl titanate is 3.0%;
(5) stainless (steel) wire of the coated Dopamine hydrochloride after step (3) being dried is soaked in the solution that step (4) obtains, after stirring at normal temperature 30min, add 5mL water and 55mL ammoniacal liquor, after continuing to stir 36h, use ethanol and washed with ether respectively, dry the oil-water separating net namely obtaining super-hydrophobic super-oleophylic.Wherein, water, ammoniacal liquor and solvent (ethanol) volume ratio are: 1:11:54.
The contact angle of separation of emulsions nethike embrane to the water droplet of 2 microlitres that measurement the present embodiment obtains in atmosphere is greater than 150 °;
The experimental provision shown in Fig. 3 is utilized to carry out separation of emulsions test.Separation of emulsions nethike embrane 2 obtained above is clipped in the middle of fixture, two ends feed glass pipe and discharging glass tube, by emulsion (the volume ratio 114:1 of toluene Bao Shui, containing class of 6.1mg/mL department 80, magnetic agitation 2 hours) be poured on above-mentioned separation of emulsions nethike embrane by the feed glass pipe of top, emulsion contacts nethike embrane realizes breakdown of emulsion, oil phase (i.e. toluene) from below discharging glass tube flows out, water is blocked in the upper end being separated nethike embrane simultaneously, obtain the toluene after being separated, Fig. 3 c) in shown in the bottle of the right, thus reach the object of simultaneously break milk separation.
The separation of emulsions nethike embrane of embodiment 3, preparation super-hydrophobic super-oleophylic and separation of emulsions effect:
(1) 800 object stainless (steel) wires to be immersed in the mixed solution of ethanol and acetone (volume ratio is 1:1) ultrasonic cleaning 15 minutes, to dry under normal temperature;
(2) under room temperature, 240ml water, 1.44g Dopamine hydrochloride and 0.96g trishydroxymethylaminomethane is added in the beaker of 250ml, magnetic agitation mixes, obtain mixed solution, in this mixed solution, the mass percentage of Dopamine hydrochloride is 0.10%, and the mass percentage of trishydroxymethylaminomethane is 0.74%, and solution ph is 8.5;
(3) stainless (steel) wire after step (1) being dried is soaked in the mixed solution that step (2) obtains, and after normal temperature places 24 hours, taking-up is clean with deionized water rinsing, naturally dries;
(4) under room temperature, add 270ml ethanol, 7.5g tetraethyl orthosilicate in the beaker of 500mL, 1.0g aminopropyl triethoxysilane and 4.3g dodecyl trimethoxy silane, obtain clear solution liquid under magnetic agitation.Stir after 10 minutes, add 1.8g butyl titanate.In this solution, tetraethyl orthosilicate mass percentage is 3.5%, and aminopropyl triethoxysilane mass percentage is 0.5%, and dodecyl trimethoxy silane mass percentage is 2.0%, and the mass percentage of butyl titanate is 0.5%;
(5) stainless (steel) wire of the coated Dopamine hydrochloride after step (3) being dried is soaked in the solution that step (4) obtains, after stirring at normal temperature 30min, add 5mL water and 55mL ammoniacal liquor, after continuing to stir 36h, use ethanol and washed with ether respectively, dry the oil-water separating net namely obtaining super-hydrophobic super-oleophylic.Wherein, water, ammoniacal liquor and solvent (ethanol) volume ratio are: 1:11:54.
The contact angle of separation of emulsions nethike embrane to the water droplet of 2 microlitres that measurement the present embodiment obtains in atmosphere is greater than 150 °;
The experimental provision shown in Fig. 4 is utilized to carry out separation of emulsions test.Separation of emulsions nethike embrane 2 obtained above is clipped in the middle of fixture, two ends feed glass pipe and discharging glass tube, by water in oil for vapour emulsion (volume ratio 114:1, containing class of 6.1mg/mL department 80, magnetic agitation 2 hours) be poured on above-mentioned separation of emulsions nethike embrane by the feed glass pipe of top, emulsion contacts nethike embrane realizes breakdown of emulsion, oil phase (i.e. gasoline) from below discharging glass tube flows out, water is blocked in the upper end being separated nethike embrane simultaneously, obtain the gasoline after being separated, Fig. 3 d) in shown in the bottle of the right, thus reach the object of simultaneously break milk separation.
The separation of emulsions nethike embrane of embodiment 4, preparation super-hydrophobic super-oleophylic and separation of emulsions effect:
(1) 600 object stainless (steel) wires to be immersed in the mixed solution of ethanol and acetone (volume ratio is 1:1) ultrasonic cleaning 15 minutes, to dry under normal temperature;
(2) under room temperature, 240ml water, 0.24g Dopamine hydrochloride and 0.96g trishydroxymethylaminomethane is added in the beaker of 250ml, magnetic agitation mixes, obtain mixed solution, in this mixed solution, the mass percentage of Dopamine hydrochloride is 0.60%, and the mass percentage of trishydroxymethylaminomethane is 0.40%, and solution ph is 8.5;
(3) stainless (steel) wire after step (1) being dried is soaked in the mixed solution that step (2) obtains, and after normal temperature places 24 hours, taking-up is clean with deionized water rinsing, naturally dries;
(4) under room temperature, add 270ml ethanol, 2.2g tetraethyl orthosilicate in the beaker of 500mL, 4.2g aminopropyl triethoxysilane and 8.5g dodecyl trimethoxy silane, obtain clear solution liquid under magnetic agitation.Stir after 10 minutes, add 10.5g butyl titanate.In this solution, tetraethyl orthosilicate mass percentage is 1.0%, and aminopropyl triethoxysilane mass percentage is 2.0%, and dodecyl trimethoxy silane mass percentage is 4.0%, and the mass percentage of butyl titanate is 3.0%;
(5) stainless (steel) wire of the coated Dopamine hydrochloride after step (3) being dried is soaked in the solution that step (4) obtains, after stirring at normal temperature 30min, add 5mL water and 55mL ammoniacal liquor, after continuing to stir 36h, use ethanol and washed with ether respectively, dry the oil-water separating net namely obtaining super-hydrophobic super-oleophylic.Wherein, water, ammoniacal liquor and solvent (ethanol) volume ratio are: 1:11:54.
The contact angle of separation of emulsions nethike embrane to the water droplet of 2 microlitres that measurement the present embodiment obtains in atmosphere is greater than 150 °;
The experimental provision shown in Fig. 3 is utilized to carry out separation of emulsions test.Separation of emulsions nethike embrane 2 obtained above is clipped in the middle of fixture, two ends feed glass pipe and discharging glass tube, by water in oil for bavin emulsion (volume ratio 114:1, containing class of 6.1mg/mL department 80, magnetic agitation 2 hours) be poured on above-mentioned separation of emulsions nethike embrane by the feed glass pipe of top, emulsion contacts nethike embrane realizes breakdown of emulsion, oil phase (i.e. diesel oil) from below discharging glass tube flows out, water is blocked in the upper end being separated nethike embrane simultaneously, obtain the diesel oil after being separated, Fig. 3 d) in shown in the bottle of the right, thus reach the object of simultaneously break milk separation.
Fig. 4 is the Stabilily parameter experiment of the water-in-oil emulsion prepared in embodiment 1-4, from left to right be followed successively by chloroform, toluene, gasoline and bavin water-in-oil emulsion, can learn from Fig. 4: water-in-oil emulsion is equal stable existence the placement process of the 1st day to the 90th day, water-in-oil emulsion is uniform and stable, and oil is separated with water is more difficult.
Experimental result of the present invention shows: water is 150 ° at the contact angle of separation of emulsions retinal surface of the present invention, namely water do not infiltrate on oil-water separation mesh film surface of the present invention and not by.The silica-titania composite pellets that nethike embrane carries has breakdown of emulsion function, as: when water-in-oil emulsion being poured in the tilted-putted glass tube accompanying separation of emulsions nethike embrane of the present invention, emulsion is breakdown of emulsion above nethike embrane, oil phase after breakdown of emulsion passes through nethike embrane, and water is blocked in above the nethike embrane of separation of emulsions, realize the object that oil hydrosol break milk separation carries out simultaneously.Water does not infiltrate completely on nethike embrane of the present invention, can not destroy the wellability of nethike embrane of the present invention, and therefore nethike embrane can Reusability.Separation of emulsions nethike embrane ethanol purge after using dries to be preserved, and does not need to be kept in complex environment.

Claims (10)

1. a preparation method for the separation of emulsions nethike embrane of super-hydrophobic super-oleophylic, comprises the steps:
1) Dopamine hydrochloride and trishydroxymethylaminomethane are dissolved in the water and stir obtain mixed solution A;
2) fabric web be impregnated in described mixed solution A, carry out reaction 1, obtain the fabric web that poly-dopamine is film modified;
3) siloxane precursors, silane coupler 1, silane coupler 2 and TiO 2 precursor to be dissolved in organic solvent and to stir, obtaining mixed solution B;
4) take out step 2) in fabric web, after cleaning, described fabric web be impregnated in described mixed solution B, and adds water and ammoniacal liquor wherein, carry out reaction 2, obtain described separation of emulsions nethike embrane.
2. preparation method according to claim 1, is characterized in that: step 1) in, in described mixed solution A, the mass percentage of described Dopamine hydrochloride is 0.1 ~ 10.0%;
In described mixed solution A, the mass percentage of described trishydroxymethylaminomethane is 0.3 ~ 2.0%;
The pH value of described mixed solution A is 8.0 ~ 12.0.
3. preparation method according to claim 1 and 2, is characterized in that: step 2) in, described fabric web is metal fabric net;
Described metal fabric net be selected from following any one: stainless (steel) wire, copper mesh, iron net, titanium net or aluminium alloy net;
The order number of described fabric web is 500 ~ 1000 orders;
The weaving method of described fabric web be selected from following any one: plain weave, twill weave, plain Dutch braiding, twill Dutch braiding or reverse Dutch weave.
4. the preparation method according to any one of claim 1-3, is characterized in that: the reaction time of described reaction 1 is 24 ~ 48h;
The reaction temperature of described reaction 1 is 15-35 DEG C;
Before described impregnation steps, described preparation method also comprises the step of cleaning described fabric web: clean described fabric web with ethanol and acetone mixed solution, and the volume ratio of described ethanol and acetone is 1:1.
5. the preparation method according to any one of claim 1-4, is characterized in that: step 3) in, described siloxane precursors is quanmethyl silicate and/or tetraethyl orthosilicate;
The mass percentage of described siloxane precursors is 0.1 ~ 10.0%;
Described silane coupler 1 is aminopropyl triethoxysilane;
The mass percentage of described silane coupler 1 is 0.1 ~ 5.0%;
Described silane coupler 2 is dodecyl trimethoxy silane and/or n-hexadecyl trimethoxy silane;
The mass percentage of described silane coupler 2 is 0.1 ~ 10.0%;
Described TiO 2 precursor is butyl titanate;
The mass percentage of described TiO 2 precursor is 0.1 ~ 10%;
Described organic solvent is ethanol.
6. the preparation method according to any one of claim 1-5, is characterized in that: step 4) in, described reaction 2 is reaction;
The reaction time of described reaction 2 is 24 ~ 60h;
The reaction temperature of described reaction 2 is 15-35 DEG C;
Described water, ammoniacal liquor and step 3) described in the volume ratio of organic solvent be 1:(10-12): (53-55).
7. the preparation method according to any one of claim 1-6 and the separation of emulsions nethike embrane of the super-hydrophobic super-oleophylic prepared.
8. the application of separation of emulsions nethike embrane in separation of emulsions of super-hydrophobic super-oleophylic according to claim 7.
9. application according to claim 8, is characterized in that: described separation of emulsions is the separation of emulsions of water-in-oil type.
10. application according to claim 8 or claim 9, is characterized in that: the oil phase in described emulsion is selected from following at least one: n-hexane, chloroform, benzinum, benzene, gasoline, diesel oil, vegetable and animals oils and crude oil.
CN201510219805.XA 2015-04-30 2015-04-30 Super-hydrophobic super-lipophilic emulsion separating mesh membrane, and production method and application thereof Pending CN104826363A (en)

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CN113082853A (en) * 2021-03-31 2021-07-09 华南理工大学 Three-dimensional Janus stainless steel mesh capable of separating emulsified oil and water and preparation method thereof
CN114436366A (en) * 2020-11-06 2022-05-06 中国石油天然气股份有限公司 Oil-water separation device and manufacturing method thereof
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CN111298480A (en) * 2020-03-02 2020-06-19 苏州水澜环保科技有限公司 Rapid oil-water separation material and preparation method and application thereof
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