CN104771936B - Preparation method of high oil absorption sponge for oil-water separation - Google Patents
Preparation method of high oil absorption sponge for oil-water separation Download PDFInfo
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- CN104771936B CN104771936B CN201510121548.6A CN201510121548A CN104771936B CN 104771936 B CN104771936 B CN 104771936B CN 201510121548 A CN201510121548 A CN 201510121548A CN 104771936 B CN104771936 B CN 104771936B
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- 238000010521 absorption reaction Methods 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract description 16
- 238000000926 separation method Methods 0.000 title abstract description 5
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 18
- 229920002635 polyurethane Polymers 0.000 claims abstract description 16
- 239000004814 polyurethane Substances 0.000 claims abstract description 16
- 239000003607 modifier Substances 0.000 claims abstract description 11
- 239000003795 chemical substances by application Substances 0.000 claims description 15
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 12
- 238000007654 immersion Methods 0.000 claims description 11
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 9
- 239000002904 solvent Substances 0.000 claims description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims description 6
- XDLMVUHYZWKMMD-UHFFFAOYSA-N 3-trimethoxysilylpropyl 2-methylprop-2-enoate Chemical compound CO[Si](OC)(OC)CCCOC(=O)C(C)=C XDLMVUHYZWKMMD-UHFFFAOYSA-N 0.000 claims description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 4
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 4
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 claims description 3
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- -1 mercapto Propyl Chemical group 0.000 claims description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 2
- 238000007725 thermal activation Methods 0.000 claims description 2
- DCQBZYNUSLHVJC-UHFFFAOYSA-N 3-triethoxysilylpropane-1-thiol Chemical compound CCO[Si](OCC)(OCC)CCCS DCQBZYNUSLHVJC-UHFFFAOYSA-N 0.000 claims 1
- 235000009508 confectionery Nutrition 0.000 claims 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims 1
- ARYZCSRUUPFYMY-UHFFFAOYSA-N methoxysilane Chemical compound CO[SiH3] ARYZCSRUUPFYMY-UHFFFAOYSA-N 0.000 claims 1
- 239000003921 oil Substances 0.000 abstract description 69
- 238000000034 method Methods 0.000 abstract description 14
- 239000003344 environmental pollutant Substances 0.000 abstract description 4
- 231100000719 pollutant Toxicity 0.000 abstract description 4
- 230000003213 activating effect Effects 0.000 abstract 1
- 238000001125 extrusion Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000003208 petroleum Substances 0.000 abstract 1
- 235000019198 oils Nutrition 0.000 description 52
- 239000000463 material Substances 0.000 description 12
- 235000015112 vegetable and seed oil Nutrition 0.000 description 7
- 239000008158 vegetable oil Substances 0.000 description 7
- 239000010687 lubricating oil Substances 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 238000007789 sealing Methods 0.000 description 4
- 239000006260 foam Substances 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 239000002250 absorbent Substances 0.000 description 2
- 238000003763 carbonization Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- 241000628997 Flos Species 0.000 description 1
- 241000124008 Mammalia Species 0.000 description 1
- JSRFLPZZQPDXMO-UHFFFAOYSA-N OCCC[Si](OC)(OC)C.C(CN)N Chemical compound OCCC[Si](OC)(OC)C.C(CN)N JSRFLPZZQPDXMO-UHFFFAOYSA-N 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 150000002118 epoxides Chemical class 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 239000005445 natural material Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- YUYCVXFAYWRXLS-UHFFFAOYSA-N trimethoxysilane Chemical compound CO[SiH](OC)OC YUYCVXFAYWRXLS-UHFFFAOYSA-N 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Landscapes
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention relates to a preparation method of a high oil absorption sponge for oil-water separation, which comprises the following specific steps: firstly, treating the surface of a polyurethane sponge framework by using a modifier to obtain a hydrophobic modified layer, and then heating and activating the treated sponge at a certain temperature to obtain the oil-absorbing sponge. The ultrathin hydrophobic modified layer of the modified sponge keeps the inherent characteristics of high porosity and high elasticity of the polyurethane sponge, and simultaneously obtains the characteristic of high-efficiency oil absorption. The oil absorption sponge prepared by the method has the advantages of only absorbing oil but not absorbing water, the oil absorption amount reaches dozens of times to hundreds of times of the self weight, and the like, and the absorbed oil product can be recovered in a simple extrusion mode. The sponge prepared by the method has the characteristics of low cost, simple and feasible process and good reusability, and can be produced on a large scale. The method is expected to be widely applied to the aspects of removing oil pollutants in water, petroleum exploitation, separation of industrial oil pollutants and the like.
Description
Technical field
The present invention relates to a kind of preparation method of water-oil separating high oil-absorbent material, more particularly to a kind of low cost, high suction
Oil cut rate, the reusable water-oil separating preparation method of high oil absorption sponge.
Background technology
With economic fast development, the extensive use of oil and its various downstream product, pollution of the oils to water body into
To influence a big serious problems of ecological environment, wherein being particularly acute with oils leakage problem.Oils leakage accident, which makes to have, to be poisoned
Compound rapidly enters food chain, and low to arrive lower algae, high to higher mammal, none is escaped by luck.Currently to the processing of this problem
Mode is based on adsorption treatment.Sorbing material can be divided into natural sorbing material and artificial synthesized sorbing material.Natural sorbing material
Such as stalk, cotton wool product and inorganic mineral zeolite, this kind of product has the advantages that to gather materials on the spot, cost is cheap, but its is low
Oil absorption and the low rate of adsorption limit the popularity used.Artificial synthesized sorbing material such as CNT, carbon nanometer foam etc.
The shortcomings that compensate for natural material, but have the shortcomings that complex process, with high costs.Patent CN104163934 A are disclosed
It is a kind of polymer foams are carried out it is partially carbonized to obtain the method for oleophilic oil material.This method requirement is in indifferent gas
High-temperature process is carried out to foamed material under body protection, high are required to process conditions, high energy consumption, and also it is inevitable in carbonisation
Toxic gas will be produced, brings new environmental pollution.In addition, carbonization can cause the volume contraction of foam and partially or completely lose
Elasticity is lost, oil suction multiplying power and repeat usage will be caused to decline.Therefore, there is an urgent need to develop a kind of ensureing oil absorbing effect and again
Multiple performance, cost is cheap, the simply selective water-oil separating material of technique.
The content of the invention
The invention aims to improve, existing oil absorption material oil suction multiplying power is low, adsorption time is long, preparation technology is complicated
The shortcomings of, and a kind of preparation method of water-oil separating high oil-absorbent material is provided.
The technical scheme is that：A kind of water-oil separating preparation method of high oil absorption sponge, it is comprised the following steps that：
A. hydrophobic modifier immersion treatment is carried out to polyurethane sponge surface：Polyurethane sponge is immersed in into mass concentration is
In the hydrophobically modified agent solution of 0.5-10% concentration, it is 0.5-20 hours to control time of contact, and Contact Temperature is 20-60 DEG C, is made
Hydrophobic modifier is adhered in sponge surface；
B. heat-activated is carried out to the polyurethane sponge of hydrophobically modified dose of immersion:Bubble processing is invaded by hydrophobically modified dose
Sponge is placed in drying box, carries out heat-activated, and heat-activated temperature is 50 DEG C -110 DEG C；The heat-activated time is that 0.5-20 is small
When, induction modifier molecules align obtained water-oil separating high oil absorption sea in sponge surface by hydrophobic grouping in the form of outwardly
It is continuous.
The mass concentration of hydrophobic modifier modifying agent described in preferred steps a is 3%-7%.
It is preferred that the hydrophobic modifier in hydrophobically modified agent solution includes but is not limited to aminopropyl triethoxysilane
(KH550), glycydoxy trimethoxy silane (KH560), methacryloxypropyl trimethoxy silane
(KH570), VTES (A151), VTES (A171), mercapto propyl group front three (second) epoxide
Silane (KH580, KH590), ethylenediaminepropyltriethoxysilane (KH792) or ethylenediamine hydroxypropyl methyl dimethoxysilane
(KBM602)；Solvent in hydrophobically modified agent solution is the solvent that can dissolve hydrophobic modifier, including but not limited to methanol, second
Alcohol, isopropanol, tetrahydrofuran, ethyl acetate or n-hexane.
Heat-activated temperature is 75 DEG C -90 DEG C in preferred steps b；The heat-activated time is 5-14 hours.
High oil absorption sponge obtained by the present invention is applied to the separation of oils and organic solvent and water.
Beneficial effect：
1st, the use of polyurethane sponge and hydrophobic modifier cheap and easy to get is raw material, preparation process only includes immersion and added
The step of thermal activation two, technique is extremely easy, contrasts other method, and cost is greatly reduced.
2nd, obtained sponge has highly water repellant oil-wet behavior, can be quickly to a variety of oils waterborne and underwater and organic molten
Agent carries out selective absorbing, and oil suction multiplying power is up to tens of to hundreds times of deadweight, so as to realize the effect of water-oil separating.
3rd, hydrophobically modified process does not destroy the intrinsic high resiliency of polyurethane sponge, and absorption can be reclaimed by way of extruding
Oils, it can repeatedly use, and oil suction multiplying power unobvious decline.
4th, it is simple for process, without complex device and atmosphere protection, it is easy to industrialized production, and raw material is simple and easy to get,
With good amplification prospect of production, it is expected in the removing of water body oil pollutant, oil exploitation, the separation of industrial oil pollutant etc.
Aspect is used widely.
Brief description of the drawings
Fig. 1 be in embodiment 1 water droplet and oil droplet in the wetting state photo of high oil absorption sponge surface；The left side is to leak into sea
Remaining oil stain inside silk floss, the right are water droplet in the form of pearl is maintained at sponge surface.
Fig. 2 is the electron scanning micrograph of high oil absorption sponge microscopic appearance prepared by embodiment 1.
Fig. 3 is the variation diagram of oil absorbency during high oil absorption sponge circulation absorption vegetable oil prepared by embodiment 1.
Embodiment
The present invention is further described below in conjunction with specific embodiment, but institute is not caused to the present invention to embodiment
The limitation of claim saturation range.
Embodiment 1
Take polyurethane sponge to be put into container, add the hydrophobically modified that the mass concentration prepared by solvent of ethanol is 4%
Agent --- γ-(methacryloxypropyl) propyl trimethoxy silicane (KH-570) solution, it is desirable to which solution is totally submerged sponge, and close
Seal container.Under the conditions of 50 DEG C, stir 20 hours.
By the sponge of hydrophobically modified dose of immersion treatment at 110 DEG C heat-activated 0.5 hour, that is, obtain oil suction sponge.
The oil suction sponge obtained in the present embodiment is respectively 118 times and 107 times to conduct oneself with dignity to the oil suction multiplying power of vegetable oil, lubricating oil.Inhale
Oily sponge possesses excellent hydrophobic oil absorption, and oil droplet is dropped on sponge surface inside quick infiltration sponge, only residual on surface
Stay a little oil stain；And water droplet can not then penetrate into oil suction sponge, but kept for a long time (Fig. 1) in pearl in sponge surface.Without changing
The initial sponge of property, oil droplet and water droplet can be quickly penetrated into inside sponge, i.e., do not possess oil-water selectivity, and can not be due to water body
Oily matter is optionally absorbed in system.Sponge can float for a long time in the water surface water surface, but not absorb water, and show excellent hydrophobic
Property.The oil content of sponge absorption is removed by extruding, sponge may be reused more than 10 times, and oil suction multiplying power does not occur substantially to drop
Low (Fig. 2).SEM is not it has been observed that the microstructure of the high oil absorption sponge of hydrophobically modified acquisition occurs substantially
Change, sponge surface is also without being evident that attachment (Fig. 3), it was confirmed that the ultra-slim features of hydrophobically modified layer, thus sponge
High porosity and high resiliency are maintained so that sponge obtains high oil suction multiplying power and reuses characteristic.
Embodiment 2
Take polyurethane sponge to be put into container, add the hydrophobically modified that the mass concentration prepared by solvent of ethanol is 10%
Agent KH-570 solution, it is desirable to which solution is totally submerged sponge, and sealing container.Under the conditions of 25 DEG C, stir 1 hour.
By the sponge of hydrophobically modified dose of immersion treatment at 75 DEG C heat-activated 16 hours, that is, obtain oil suction sponge.This
The sponge obtained in embodiment is respectively 94 times and 91 times to conduct oneself with dignity to the oil suction multiplying power of vegetable oil, lubricating oil.
Embodiment 3
Take polyurethane sponge to be put into container, add the hydrophobically modified that the mass concentration prepared by solvent of methanol is 5%
Agent --- aminopropyl triethoxysilane (KH550) solution, it is desirable to which solution is totally submerged sponge, and sealing container.In 40 DEG C of bars
Under part, stir 10 hours.
By the sponge of hydrophobically modified dose of immersion treatment at 50 DEG C heat-activated 20 hours, that is, obtain oil suction sponge.This
The sponge obtained in embodiment to the oil suction multiplying power of vegetable oil, lubricating oil is deadweight 91 times.
Embodiment 4
Polyurethane sponge is taken to be put into container, it is that 0.5% hydrophobic changes to add the mass concentration prepared by solvent of methanol
Property agent --- VTES (A151) solution, it is desirable to which solution is totally submerged sponge, and sealing container.In 50 DEG C of bars
Under part, stir 20 hours.
By the sponge of hydrophobically modified dose of immersion treatment at 80 DEG C heat-activated 10 hours, that is, obtain oil suction sponge.This
The sponge obtained in embodiment is respectively 115 times and 120 times to conduct oneself with dignity to the oil suction multiplying power of vegetable oil, lubricating oil.
Embodiment 5
Take polyurethane sponge to be put into container, add the mass concentration prepared by solvent of ethyl acetate be 7% it is hydrophobic
Modifying agent --- ethylenediaminepropyltriethoxysilane (KH792) solution, it is desirable to which solution is totally submerged sponge, and sealing container.
Under the conditions of 60 DEG C, stir 12 hours.
By the sponge of hydrophobically modified dose of immersion treatment at 70 DEG C heat-activated 5 hours, that is, obtain oil suction sponge.This reality
It is respectively 106 times and 111 times to conduct oneself with dignity to the oil suction multiplying power of vegetable oil, lubricating oil to apply the sponge obtained in example.
Embodiment 6
Polyurethane sponge is taken to be put into container, it is that 7% hydrophobic changes to add the mass concentration prepared by solvent of n-hexane
Property agent --- ethylenediamine hydroxypropyl methyl dimethoxysilane (KBM602) solution, it is desirable to which solution is totally submerged sponge, and seals appearance
Device.Under the conditions of 30 DEG C, stir 20 hours.
By the sponge of hydrophobically modified dose of immersion treatment at 90 DEG C heat-activated 10 hours, that is, obtain oil suction sponge.This
The sponge obtained in embodiment is respectively 104 times and 105 times to conduct oneself with dignity to the oil suction multiplying power of vegetable oil, lubricating oil.
Sponge prepared by above example may be reused more than 10 times, and oil suction multiplying power does not occur substantially to reduce.
Claims (4)
1. a kind of water-oil separating preparation method of high oil absorption sponge, it is comprised the following steps that：
A. hydrophobic modifier immersion treatment is carried out to polyurethane sponge surface：It is 0.5- that polyurethane sponge is immersed in into mass concentration
In the hydrophobically modified agent solution of 10% concentration, it is 0.5-20 hours to control time of contact, and Contact Temperature is 20-60 DEG C, is made hydrophobic
Modifying agent adheres in sponge surface；Hydrophobic modifier in hydrophobically modified agent solution is aminopropyl triethoxysilane, shrink is sweet
Oily ether epoxide propyl trimethoxy silicane, methacryloxypropyl trimethoxy silane, VTES, mercapto
Propyl trimethoxy silicane, mercaptopropyltriethoxysilane, ethylenediaminepropyltriethoxysilane or ethylenediamine hydroxypropyl methyl two
Methoxy silane；
B. heat-activated is carried out to the polyurethane sponge of hydrophobically modified dose of immersion:The sponge for invading bubble processing by hydrophobically modified dose
It is placed in drying box, carries out heat-activated, heat-activated temperature is 50 DEG C -110 DEG C；The heat-activated time is 0.5-20 hours,
Water-oil separating is made with high oil absorption sponge.
2. preparation method according to claim 1, it is characterised in that the mass concentration of the hydrophobic modifier described in step a
For 3%-7%.
3. preparation method according to claim 1, it is characterised in that the solvent in hydrophobically modified agent solution is methanol, second
Alcohol, isopropanol, tetrahydrofuran, ethyl acetate or n-hexane.
4. preparation method according to claim 1, it is characterised in that heat-activated temperature is 75 DEG C -90 DEG C in step b；Add
The thermal activation time is 5-14 hours.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510121548.6A CN104771936B (en) | 2015-03-19 | 2015-03-19 | Preparation method of high oil absorption sponge for oil-water separation |
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| CN201510121548.6A CN104771936B (en) | 2015-03-19 | 2015-03-19 | Preparation method of high oil absorption sponge for oil-water separation |
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| CN104771936B true CN104771936B (en) | 2018-02-23 |
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Families Citing this family (16)
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| CN105199126B (en) * | 2015-10-26 | 2017-12-15 | 东北林业大学 | A kind of preparation method of the sponge with pH responses |
| CN105601314A (en) * | 2015-12-29 | 2016-05-25 | 中国石油化工股份有限公司 | Preparation method of hydrophobic carbon-fiber aerogel for reclaiming oil spillage |
| CN105801903B (en) * | 2016-03-17 | 2019-01-15 | 中国船舶重工集团公司第七二五研究所 | A kind of preparation and its anticorrosion implementation method of super-hydrophobic sponge material |
| CN106147715A (en) * | 2016-06-02 | 2016-11-23 | 刘*泽 | Hydrophobic oleophilic oil environmental protection oil absorption material of repeatable utilization and preparation method thereof |
| CN106084282B (en) * | 2016-06-06 | 2019-04-19 | 北京化工大学 | A kind of quick cationic polymerization prepares the method and application of hydrophobic oleophilic oil composite material |
| CN107312197A (en) * | 2016-07-22 | 2017-11-03 | 中国石油化工股份有限公司 | Super-hydrophobic cavernosa material and preparation method thereof |
| CN106693444A (en) * | 2016-12-27 | 2017-05-24 | 西南石油大学 | Preparing method of reproducible super-hydrophobic graphite alkenyl oil absorption sponge |
| CN107245159A (en) * | 2017-05-22 | 2017-10-13 | 江苏大学 | A kind of Preparation method and use of silica constructing super-drainage melamine sponge |
| CN108192322A (en) * | 2017-12-04 | 2018-06-22 | 张芸 | A kind of preparation method of hydrophobic oleophilic oil type polyurethane sponge |
| CN108855013A (en) * | 2018-07-31 | 2018-11-23 | 李忠 | A kind of processing of oil spill is with sponge and preparation method thereof |
| CN110947359A (en) * | 2018-09-26 | 2020-04-03 | 中国石油天然气股份有限公司 | Low-density high-elasticity hydrophobic/oleophylic carbon sponge and preparation method and application thereof |
| CN109575353B (en) * | 2018-12-14 | 2020-12-08 | 中国科学院长春应用化学研究所 | Silanized hydrophobic modified polyvinyl alcohol-based porous material and preparation method thereof |
| CN110384953A (en) * | 2019-07-26 | 2019-10-29 | 山东大学 | A kind of carbon dots modification sponge oil absorption material and preparation method thereof |
| US11517859B2 (en) | 2020-06-10 | 2022-12-06 | Saudi Arabian Oil Company | Composite material for removal of hydrophobic components from fluid mixtures |
| CN113265087A (en) * | 2021-04-19 | 2021-08-17 | 优尔材料工业（深圳）有限公司 | Hydrophobic oleophylic foamed plastic and preparation method and equipment thereof |
| US11858815B2 (en) | 2021-09-30 | 2024-01-02 | Saudi Arabian Oil Company | Graphene modified with linear alkylamines for oil removal from produced water |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US9023908B2 (en) * | 2010-05-27 | 2015-05-05 | Basf Se | Oil-absorbent polyurethane sponges with good mechanical properties |
| CN103537120B (en) * | 2013-10-15 | 2015-06-03 | 南京工业大学 | Preparation method of sponge for oil-water separation |
| CN103877952B (en) * | 2014-03-20 | 2017-01-18 | 江苏大学 | Similar soft sweet type polysiloxane adsorption material as well as preparation and application of surface modified sponge |
| CN104017234B (en) * | 2014-05-27 | 2016-04-20 | 哈尔滨工业大学 | A kind of polyurethane sponge-double carbamate class compound oil spilling administers the preparation method of material |
| CN104324524B (en) * | 2014-11-21 | 2016-03-30 | 中国科学院新疆理化技术研究所 | The preparation method of the ultralight sponge of a kind of super-hydrophobic super-oleophylic |
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