CN108940231A - The melamine sponge water-oil separating material and preparation method of a kind of modification of poly-dopamine and application - Google Patents
The melamine sponge water-oil separating material and preparation method of a kind of modification of poly-dopamine and application Download PDFInfo
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- CN108940231A CN108940231A CN201810731672.8A CN201810731672A CN108940231A CN 108940231 A CN108940231 A CN 108940231A CN 201810731672 A CN201810731672 A CN 201810731672A CN 108940231 A CN108940231 A CN 108940231A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/26—Synthetic macromolecular compounds
- B01J20/265—Synthetic macromolecular compounds modified or post-treated polymers
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/285—Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
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Abstract
The present invention provides a kind of melamine sponge water-oil separating material of poly-dopamine modification and preparation method and applications.The present invention is using melamine sponge as substrate, poly-dopamine is generated in substrate surface oxidation polymerization with dopamine, utilize poly-dopamine reactivity site abundant, octadecylamine and lauryl mercaptan are connected on its surface, it is prepared a kind of super-hydrophobic melamine sponge water-oil separating material, which is easy to get, simple process, operation are convenient, low in cost.The present invention also provides a kind of melamine sponge water-oil separating materials of poly-dopamine modification, accessing two kinds of low-surface energy substances simultaneously and generating synergistic effect realizes more preferably ultra-hydrophobicity, oil-water separativeness is further increased, the material angle maximum is up to 160.5 °, the water-oil separating that can be widely used for various occasions, has a good application prospect.
Description
Technical field
The invention belongs to chemical synthesis function adsorbed polymer Material Field, in particular to a kind of poly-dopamine is modified close
Amine sponge water-oil separating material and preparation method and application.
Background technique
With the continuous development of modern industry, leaked offshore oil event takes place frequently, these greasy dirts not only directly destroy ecology
Environment, it is also possible to cause a large amount of noxious materials contained in marine organisms mortality or even crude oil will be by the tired of food chain
Product finally endangers the health of the mankind.In addition, industrial production and the unprocessed oily waste water arbitrarily discharged of people's daily life
Water also drastically influences we itself living environment.Therefore, it is necessary to reinforce correlative study to handle the such environmental problem of reply.
At present the processing technique of common oily waste water mainly have combustion method, centrifugal process, gravitational method, floatation, biochemical method,
Chemical flocculation etc..These methods are although easy to operate, but more or less exist low separation efficiency, energy consumption it is high, it is at high cost, hold
The defects of easily causing secondary pollution.For absorption method using the oils in lipophilic material adsorbed water body, it is right in multiple times to be simple and efficient
Many organic pollutants are handled.
Melamine sponge (MFS), i.e. melamine-formaldehyde sponge are a kind of common porous material substrates, it is to belong to ammonia
One of base plastics thermosetting resin, melamine sponge are moulded as a kind of novel foam of three dimensional network structure for having high opening rate
Material, due to Superhydrophilic, big rough surface and three-dimensional open-framework, can be used as a kind of functionalization matrix be used to prepare it is super
Hydrophobic adsorbent.In addition to this, melamine has excellent flame-retarding characteristic, and when encountering open fire, carbonization, surface shape occur for sponge
At carbon-coating and then become protective layer, prevents the further contact of flame.In addition, sponge releases nitrogen substitution while carbonization
The oxygen of surrounding prevents the further burning of material.Therefore, super-hydrophobic sponge is prepared in absorption oil by substrate of melamine sponge
Meanwhile the security risks such as fire explosion can be substantially reduced.
It is graft-polymerized currently, this field major part researcher is typically employed in melamine sponge surface to reach super-hydrophobic
Purpose；Also someone is first surface modified one layer of polymer coating with adhesive attraction to melamine sponge, is coated with one layer of nothing
Then machine nano particle is re-introduced into some low-surface energy substances to prepare super-hydrophobic water-oil separating material.Complicated technique in this way
Technology or cumbersome operation will limit further applying for super-hydrophobic melamine sponge.
Summary of the invention
The primary purpose of the present invention is that the shortcomings that overcoming the prior art and deficiency, do melamine sponge surface modification technique
It is further improved, a kind of preparation method of the melamine sponge water-oil separating material of poly-dopamine (PDA) modification is provided.Poly-dopamine
It is polymerized by dopamine monomer oxidation, there is preferable adhesiveness in its most of matrix surface, and also contain a large amount of hydroxyl
Base, amino active site can carry out many reactions, and the present invention carries out table to material using poly-dopamine as multi-functional middle layer
Face is modified.The preparation method is easy to operate, first modifies melamine sponge with poly-dopamine, then on the surface for the melamine sponge being modified
Access chain alkyl amine (such as octadecylamine (ODA)) and two kinds of low-surface-energy objects of chain alkyl mercaptan (such as lauryl mercaptan (DT))
Matter is finally prepared into super-hydrophobic melamine sponge water-oil separating material.
Another object of the present invention is to provide the melamine seas of the modification of the poly-dopamine as made from the preparation method
Continuous water-oil separating material.
A further object of the present invention is to provide answering for the melamine sponge water-oil separating material of poly-dopamine modification
With.
The purpose of the invention is achieved by the following technical solution:
A kind of preparation method of the melamine sponge water-oil separating material of poly-dopamine modification, including steps are as follows preparation step
It is rapid:
(1) melamine sponge is immersed in dopamine solution and is reacted, allowed dopamine in the fully oxidized polymerization of matrix surface, do
The dry melamine sponge up to poly-dopamine modification；
(2) the melamine sponge that poly-dopamine made from step (1) is modified is immersed in chain alkyl amine aqueous solution, after taking-up
Washing, drying, obtain the melamine sponge containing chain alkyl amine；
(3) the melamine sponge containing chain alkyl amine made from step (2) is put into chain alkyl thiol solution and is soaked
Bubble washs after taking-up, is dry to get super-hydrophobic melamine sponge absorbent-type water-oil separating material.
The sequencing interchangeable of step (2) and step (3).
The chain alkyl amine is preferably the alkylamine of C14~C20, further preferably octadecylamine.
The chain alkyl mercaptan is preferably the alkyl hydrosulfide of C12~C18, further preferably lauryl mercaptan.
Further, dopamine solution described in step (1) is dopamine buffer solution；The buffer solution is further excellent
It is selected as Tris-HCl (trishydroxymethylaminomethane-hydrochloric acid) buffer solution, pH is preferably 8.5.
Further, the dopamine concentration of dopamine solution described in step (1) is 2mgmL-1~10mgmL-1；From
Save the principle consideration of material, more preferably 2mgmL-1。
Further, the temperature of reaction described in step (1) is 15~85 DEG C, more preferably 55 DEG C.
Further, the time of immersion described in step (1) is 12~24 hours, more preferably 24 hours.
Further, the temperature of drying described in step (1) is not higher than 60 DEG C.
Further, the melamine sponge of step (1) can also first be pre-processed as follows: be successively immersed in acetone, ethyl alcohol,
It is cleaned by ultrasonic in deionized water, it is spare after dry.This step can effectively take out a small amount of impurity in melamine sponge.
The time of the ultrasonic cleaning is preferably 10min.
The temperature of the drying is preferably 60 DEG C.
Further, the concentration of octadecylamine is 10mmolL in step (2)-1；The octadecyl amine aqueous solution it is molten
Agent is preferably ethyl alcohol.
Further, soaking time described in step (2) is 12~24 hours, more preferably 12 hours.
Further, the concrete operations of washing described in step (2) are as follows: successively washed with ethyl alcohol, deionized water.
Further, drying described in step (2) is preferably dried in vacuo；The temperature of the drying is not higher than 50 DEG C.
Further, the concentration of lauryl mercaptan is 10mmolL in step (3)-1。
Further, the solvent of lauryl mercaptan solution described in step (3) is ethyl alcohol.
Further, the time of immersion described in step (3) is 12~24 hours, more preferably 12 hours.
Further, the concrete operations of washing described in step (3) are as follows: successively washed with ethyl alcohol, deionized water.
Further, drying described in step (3) is preferably dried in vacuo；The drying temperature is not higher than 50 DEG C.
The super-hydrophobic melamine sponge water-oil separating material that the preparation method as described in any of the above item obtains.
Application of the super-hydrophobic melamine sponge water-oil separating material in processing oily waste water.
Further, the greasy dirt of the oily waste water is containing n-hexane, n-amyl alcohol, hexamethylene, acetone, toluene, dichloromethane
Alkane, chloroform, N,N-dimethylformamide, N-Methyl pyrrolidone, dimethyl sulfoxide, tetrahydrofuran, olive oil, diesel oil,
Gasoline etc..
The present invention has the following advantages and effects with respect to the prior art:
1, the present invention is using the poly-dopamine active site abundant modified in melamine sponge surface, while two kinds of access is low
Surface energy substance, to reach more preferably ultra-hydrophobicity by the synergistic effect of the two, water-oil separating performance, which has, further to be mentioned
It is high.
2, raw material of the invention is easy to get, is from a wealth of sources.
3, raw material melamine sponge is typical fire proofing, is had during largely processing sea pollution by oil apparent excellent
Gesture.
4, poly-dopamine used is modified, and by DOPA amine monomers, oxidation polymerization is formed poly-dopamine in air, operation
It is easy；Poly-dopamine is strong in the adhesive force of matrix surface, and reactivity site is more, can carry out a variety of react with many substances.
5, the super-hydrophobic melamine sponge water-oil separating material of obtained poly-dopamine modification for organic solvent have compared with
High absorption property and recovery efficiency, and processing cost is low, easy to operate, recyclable is used for multiple times.
Detailed description of the invention
Fig. 1 is the water contact angle photo figure of material made from each step in embodiment 1, wherein figure a is raw material melamine sea
Continuous water contact angle photo, figure b are the water contact angle photo of the melamine sponge of poly-dopamine modification, and figure c is the melamine sea of modification
Silk floss connects the water contact angle photo of octadecylamine, and figure d is that the melamine sponge of modification connects the water contact angle photo of lauryl mercaptan,
Figure e is that the melamine sponge of modification connects the water contact angle photo of octadecylamine and lauryl mercaptan simultaneously.
Fig. 2 is the water contact angle test result analysis figure of embodiment 3.
Fig. 3 is that the super-hydrophobic sponge of embodiment 15 adsorbs test result analysis figure to n-hexane recycle.
Specific embodiment
Present invention will now be described in further detail with reference to the embodiments and the accompanying drawings, but embodiments of the present invention are unlimited
In this.
Reagent used in the following example can be obtained from commercial channel.
Embodiment 1
1, the pretreatment of material:
Melamine sponge is cut into 3cm × 3cm × 3cm square, is then successively immersed in acetone, ethyl alcohol, deionized water
Middle ultrasonic cleaning 10min is subsequently placed in drying for standby in 60 DEG C of electric drying oven with forced convections.This step can effectively take out melamine sponge
In a small amount of impurity.
2, the modification of melamine sponge:
(1) by melamine sponge, in the Tris-HCl buffer solution of dopamine, (concentration of dopamine is 2mgmL-1) in impregnate
For 24 hours, allow dopamine in the fully oxidized polymerization of matrix surface, reaction temperature is 15 DEG C, is placed at 60 DEG C and is drying to obtain poly-dopamine
The melamine sponge of modification；
(2) ethanol solution (octadecylamine of the melamine sponge for modifying poly-dopamine in step (1) in octadecylamine
Concentration be 10mmolL-1) in impregnate 12h, successively washed with ethyl alcohol, deionized water after taking-up, juxtaposition is in a vacuum drying oven
It is dry at 50 DEG C；
(3) the melamine sponge in step (2) containing octadecylamine is put into ethanol solution (12 sulphur of lauryl mercaptan
The concentration of alcohol is 10mmolL-1) in impregnate 12h, successively washed with ethyl alcohol, deionized water after taking-up, be placed in vacuum oven
In at 50 DEG C dry to get super-hydrophobic melamine sponge absorbent-type water-oil separating material.
Fig. 1 is the water contact angle photo prepared in each step: wherein scheming the water contact angle that a is raw material melamine sponge and shines
Piece, figure b are the water contact angle photo of the melamine sponge of poly-dopamine modification, and figure c is that the melamine sponge of modification connects octadecyl
The water contact angle photo of amine, figure d are that the melamine sponge of modification connects the water contact angle photo of lauryl mercaptan, and figure e is the close of modification
Amine sponge connects the water contact angle photo of octadecylamine and lauryl mercaptan simultaneously.It can be seen that the melamine sea that the present invention modifies
Silk floss connects octadecylamine simultaneously and the ultra-hydrophobicity of lauryl mercaptan has obtained significant raising.
Embodiment 2
1, the pretreatment of material:
Melamine sponge is cut into 3cm × 3cm × 3cm square, is then successively immersed in acetone, ethyl alcohol, deionized water
Middle ultrasonic cleaning 10min is subsequently placed in drying for standby in 60 DEG C of electric drying oven with forced convections.This step can effectively take out melamine sponge
In a small amount of impurity.
2, the modification of melamine sponge:
(1) by melamine sponge, in the Tris-HCl buffer solution of dopamine, (concentration of dopamine is 2mgmL-1) in impregnate
For 24 hours, allow dopamine in the fully oxidized polymerization of matrix surface, reaction temperature be respectively 15 DEG C, 25 DEG C, 35 DEG C, 45 DEG C, 55 DEG C,
65 DEG C, 75 DEG C, 85 DEG C are placed at 60 DEG C and are drying to obtain the melamine sponge of poly-dopamine modification；
(2) ethanol solution (octadecylamine of the melamine sponge for modifying poly-dopamine in step (1) in octadecylamine
Concentration be 10mmolL-1) in impregnate 12h, successively washed with ethyl alcohol, deionized water after taking-up, juxtaposition is in a vacuum drying oven
It is dry at 50 DEG C；
(3) the melamine sponge in step (2) containing octadecylamine is put into ethanol solution (12 sulphur of lauryl mercaptan
The concentration of alcohol is 10mmolL-1) in impregnate 12h, successively washed with ethyl alcohol, deionized water after taking-up, be placed in vacuum oven
In at 50 DEG C dry to get super-hydrophobic melamine sponge absorbent-type water-oil separating material.
Embodiment 3
The sponge that the amine-modified melamine sponge reaction of DOPA under different temperatures in embodiment 2 is prepared is subjected to contact angle survey
Examination, data are as shown in Figure 2.It can be found that when the amine-modified melamine sponge reaction temperature of DOPA is 55 DEG C, the sea that is prepared
Continuous water contact angle is maximum, and up to 160.5 °, super-hydrophobic effect is best.
Embodiment 4
Institute is prepared by the optimal experimental program of embodiment 2 (i.e. the amine-modified melamine sponge reaction temperature of DOPA is 55 DEG C) by one piece
The sponge obtained is put into the glass culture dish equipped with 5g n-hexane (oil red O stain), the n-hexane (oil red being adsorbed onto culture dish
O dyes red) it is red invisible, that is, show that absorption is completed；The n-hexane of absorption is squeezed out again, measures the n-hexane of recycling
Quality is 4.93g, the rate of recovery 98.6%.
Embodiment 5
Resulting sponge is prepared by the optimal experimental program of embodiment 2 for one piece to be put into containing 5g n-hexane (oil red O stain)
With adsorb n-hexane in n-hexane-water mixed liquid beaker of 35g water, then the n-hexane of absorption squeezed out, measuring recycling just
Hexane quality is 4.83g, the rate of recovery 96.6%.
Embodiment 6
By one piece by the optimal experimental program of embodiment 2 prepare resulting sponge be put into containing 5g chloroform (oil red O stain) and
Adsorb n-hexane in n-hexane-water mixed liquid beaker of 35g water, then the n-hexane of absorption squeezed out, measure recycling just oneself
Alkane quality is 4.9g, the rate of recovery 98%.
Embodiment 7
Preparing gained 3cm × 3cm × 3cm quality by the optimal experimental program of embodiment 2 for one piece is that 0.2967g (is denoted as
m1) super-hydrophobic melamine sponge be placed in 30min in the beaker containing 500mL water, then take out sponge weighing 0.2980g (be denoted as
m2), pass through formula (m2-m1)/m1The water absorption rate for calculating super-hydrophobic sponge is 0.44%.
Embodiment 8
Preparing gained 3cm × 3cm × 3cm quality by the optimal experimental program of embodiment 2 for one piece is that 0.2932g (is denoted as
m1) super-hydrophobic melamine sponge be placed in the beaker containing 500mL DMSO, adsorb 30min after take out sponge drain adsorption
Oil after weighing 30.4856g (be denoted as m2), pass through formula (m2-m1)/m1Calculate super-hydrophobic sponge is to the adsorption rate of DMSO
102.9g·g-1。
Embodiment 9
Preparing gained 3cm × 3cm × 3cm quality by the optimal experimental program of embodiment 2 for one piece is that 0.3011g (is denoted as
m1) super-hydrophobic melamine sponge be placed in the beaker containing 500mL n-amyl alcohol, adsorb 30min after take out sponge drain surface suction
The 22.8836g that weighs after attached oil (is denoted as m2), pass through formula (m2-m1)/m1Calculate absorption of the super-hydrophobic sponge to n-amyl alcohol
Rate is 75gg-1。
Embodiment 10
Preparing gained 3cm × 3cm × 3cm quality by the optimal experimental program of embodiment 2 for one piece is that 0.2988g (is denoted as
m1) super-hydrophobic melamine sponge be placed in the beaker containing 500mL methylene chloride, adsorb 30min after take out sponge drain surface
The 34.7265g that weighs after the oil of absorption (is denoted as m2), pass through formula (m2-m1)/m1Super-hydrophobic sponge is calculated to methylene chloride
Adsorption rate is 115.2gg-1。
Embodiment 11
Preparing gained 3cm × 3cm × 3cm quality by the optimal experimental program of embodiment 2 for one piece is that 0.2922g (is denoted as
m1) super-hydrophobic melamine sponge be placed in the beaker containing 500mL n-hexane, adsorb 30min after take out sponge drain surface suction
The 21.3773g that weighs after attached oil (is denoted as m2), pass through formula (m2-m1)/m1Calculate absorption of the super-hydrophobic sponge to n-hexane
Rate is 72.16gg-1。
Embodiment 12
Preparing gained 3cm × 3cm × 3cm quality by the optimal experimental program of embodiment 2 for one piece is that 0.3142g (is denoted as
m1) super-hydrophobic melamine sponge be placed in the beaker containing 500mL ethyl acetate, adsorb 30min after take out sponge drain surface
The 29.5378g that weighs after the oil of absorption (is denoted as m2), pass through formula (m2-m1)/m1Super-hydrophobic sponge is calculated to ethyl acetate
Adsorption rate is 93gg-1。
Embodiment 13
Preparing gained 3cm × 3cm × 3cm quality by the optimal experimental program of embodiment 2 for one piece is that 0.3019g (is denoted as
m1) super-hydrophobic melamine sponge be placed in the beaker containing 500mL acetone, adsorb 30min after take out sponge drain adsorption
Oil after weighing 26.6427g (be denoted as m2), pass through formula (m2-m1)/m1Calculate super-hydrophobic sponge is to the adsorption rate of acetone
87.25g·g-1。
Embodiment 14
Preparing gained 3cm × 3cm × 3cm quality by the optimal experimental program of embodiment 2 for one piece is that 0.2876g (is denoted as
m1) super-hydrophobic melamine sponge be placed in the beaker containing 500mL olive oil, adsorb 30min after take out sponge drain surface suction
The 18.2051g that weighs after attached oil (is denoted as m2), pass through formula (m2-m1)/m1Calculate absorption of the super-hydrophobic sponge to olive oil
Rate is 64.3gg-1。
Embodiment 15
Preparing gained 3cm × 3cm × 3cm quality by the optimal experimental program of embodiment 2 for one piece is that 0.2922g (is denoted as
m1) super-hydrophobic melamine sponge the multiple circulation absorption adsorbed again to absorption-squeezing-of n-hexane is carried out by embodiment 11, lead to
Cross formula (m2-m1)/m1Super-hydrophobic sponge is calculated to the adsorption rate each time of n-hexane, adsorption rate is most after recycling 30 times
Decline 17.4%, line chart is as shown in Figure 3.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (10)
1. a kind of preparation method of the melamine sponge water-oil separating material of poly-dopamine modification, which is characterized in that such as including step
Lower preparation step:
(1) melamine sponge is immersed in dopamine solution and is reacted, allow dopamine in the fully oxidized polymerization of matrix surface, drying is
Obtain the melamine sponge of poly-dopamine modification；
(2) the melamine sponge that poly-dopamine made from step (1) is modified is immersed in chain alkyl amine aqueous solution, is washed after taking-up
It washs, dry, obtain the melamine sponge containing chain alkyl amine；
(3) the melamine sponge containing chain alkyl amine made from step (2) is put into chain alkyl thiol solution and is impregnated, taken
It is washed after out, is dry to get super-hydrophobic melamine sponge absorbent-type water-oil separating material；
The sequencing interchangeable of step (2) and step (3).
2. the preparation method of the melamine sponge water-oil separating material of poly-dopamine modification according to claim 1, feature
It is:
The chain alkyl amine is the alkylamine of C14~C20；
The chain alkyl mercaptan is the alkyl hydrosulfide of C12~C18.
3. the preparation method of the melamine sponge water-oil separating material of poly-dopamine modification according to claim 1, feature
It is:
The chain alkyl amine is octadecylamine；
The chain alkyl mercaptan is lauryl mercaptan.
4. the preparation method of the melamine sponge water-oil separating material of poly-dopamine modification according to claim 3, feature
It is:
The concentration of octadecylamine is 10mmolL in step (2)-1；
The solvent of octadecyl amine aqueous solution described in step (2) is ethyl alcohol；
The concentration of lauryl mercaptan is 10mmolL in step (3)-1；
The solvent of lauryl mercaptan solution described in step (3) is ethyl alcohol.
5. the preparation method of the melamine sponge water-oil separating material of poly-dopamine modification according to claim 1, feature
It is:
Dopamine solution described in step (1) is dopamine buffer solution.
6. the preparation method of the melamine sponge water-oil separating material of poly-dopamine modification according to claim 5, feature
It is:
The dopamine buffer solution is the Tris-HCl buffer solution that pH is 8.5.
7. the preparation method of the melamine sponge water-oil separating material of poly-dopamine modification according to claim 1, feature
It is:
The dopamine concentration of dopamine solution described in step (1) is 2mgmL-1~10mgmL-1；
The temperature of reaction described in step (1) is 55 DEG C.
8. the preparation method of the melamine sponge water-oil separating material of poly-dopamine modification according to claim 1, feature
It is:
The temperature of reaction described in step (1) is 15~85 DEG C；
The time of immersion described in step (1) is 12~24 hours；
The temperature of drying described in step (1) is not higher than 60 DEG C；
Soaking time described in step (2) is 12~24 hours；
The temperature of drying described in step (2) is not higher than 50 DEG C；
The time of immersion described in step (3) is 12~24 hours；
Drying temperature described in step (3) is not higher than 50 DEG C.
9. a kind of melamine sponge water-oil separating material of poly-dopamine modification, it is characterised in that:
Pass through the preparation method for the melamine sponge water-oil separating material that poly-dopamine according to any one of claims 1 to 8 is modified
It is made.
10. melamine sponge water-oil separating material the answering in processing oily waste water of poly-dopamine modification as claimed in claim 9
With.
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| CN111285432A (en) * | 2020-02-17 | 2020-06-16 | 江苏师范大学 | Super-hydrophobic oleophylic cigarette end and preparation method and application thereof |
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| CN112029409A (en) * | 2020-08-21 | 2020-12-04 | 东南大学 | Polydopamine concrete hydrophobic coating material and preparation method thereof |
| CN114452683A (en) * | 2022-01-28 | 2022-05-10 | 苏州希夫安材料科技有限公司 | Silica gel/PDA/COFs three-layer composite material for oil-water separation and preparation method thereof |
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| CN110465133A (en) * | 2019-08-07 | 2019-11-19 | 中科广化（重庆）新材料研究院有限公司 | A kind of high hydrophobic stability cotton filter cloth and preparation method thereof |
| CN111285432A (en) * | 2020-02-17 | 2020-06-16 | 江苏师范大学 | Super-hydrophobic oleophylic cigarette end and preparation method and application thereof |
| CN111285432B (en) * | 2020-02-17 | 2022-03-29 | 江苏师范大学 | Super-hydrophobic oleophylic cigarette end and preparation method and application thereof |
| CN111410767A (en) * | 2020-04-20 | 2020-07-14 | 南京工业大学 | Carborane-based super-hydrophobic material and preparation method and application thereof |
| CN111410767B (en) * | 2020-04-20 | 2022-03-11 | 南京工业大学 | Carborane-based super-hydrophobic material and preparation method and application thereof |
| CN112029409A (en) * | 2020-08-21 | 2020-12-04 | 东南大学 | Polydopamine concrete hydrophobic coating material and preparation method thereof |
| CN114452683A (en) * | 2022-01-28 | 2022-05-10 | 苏州希夫安材料科技有限公司 | Silica gel/PDA/COFs three-layer composite material for oil-water separation and preparation method thereof |
| CN114452683B (en) * | 2022-01-28 | 2023-09-22 | 苏州交大鼎泽新材料科技有限公司 | Silica gel/PDA/COFs three-layer composite material for oil-water separation and preparation method thereof |
| CN115340587A (en) * | 2022-08-26 | 2022-11-15 | 湖南福来格生物技术有限公司 | Method for preparing taurochenodeoxycholic acid and taurocholic acid from poultry bile |
| CN115584051A (en) * | 2022-09-30 | 2023-01-10 | 武汉工程大学 | Polydopamine modified hydrophobic sponge, preparation method thereof and application thereof in water-in-oil emulsion separation |
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Application publication date: 20181207 |