CN106012291A - Oil-water separation fiber membrane with excellent anti-pollution capability and preparation method thereof - Google Patents
Oil-water separation fiber membrane with excellent anti-pollution capability and preparation method thereof Download PDFInfo
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
- D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
- D04H1/728—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by electro-spinning
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- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
- D01F6/54—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polymers of unsaturated nitriles
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4282—Addition polymers
- D04H1/43—Acrylonitrile series
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- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/07—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof
- D06M11/11—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof with halogen acids or salts thereof
- D06M11/13—Ammonium halides or halides of elements of Groups 1 or 11 of the Periodic System
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- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/38—Oxides or hydroxides of elements of Groups 1 or 11 of the Periodic System
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/18—Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/26—Polymers or copolymers of unsaturated carboxylic acids or derivatives thereof
- D06M2101/28—Acrylonitrile; Methacrylonitrile
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- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
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Abstract
The invention provides an oil-water separation fiber membrane with an excellent anti-pollution capability and a preparation method thereof and belongs to the technical field of new materials. Polyacrylonitrile and graphene oxide are used as preparation raw materials and a hydrolyzed polyacrylonitrile and graphene oxide compound fiber membrane is prepared through an electrostatic spinning technology and an alkali treatment method. Fibers of the fiber membrane have a lot of fusiform nodes and the nodes are induced through the graphene oxide. Furthermore, the fiber membrane is subjected to alkali treatment so that the hydrophility of the membrane is improved. Dual regulation and control on shape and surface hydrophility of the fiber membraneare carried out so that oil-water latex separation efficiency and anti-pollution performance of the membrane are remarkably improved. The preparation method of the separation membrane is simple and feasible and is safe and environmentally friendly; and the oil-water separation fiber membrane has very good application value and market prospect in the aspect of oil-containing wastewater treatment.
Description
Technical field
The present invention relates to a kind of anti-soil oil-water separation material, be specifically related to fiber oil-water separation film of a kind of antipollution, big flux and preparation method thereof, belong to new material technology field.
Background technology
Along with the development of science and technology, the progress of industry, the demand of all kinds of oil products is increased rapidly by countries in the world.During oil product exploitation, transporting and use, discharging substantial amounts of oil-polluted water, environment and human health can be caused serious harm by the direct discharge of oil-polluted water.Therefore, effective process of oil-polluted water is significant to environmental conservation, oil recovery and water circulation use.Oil-water separation film, utilizes the wettability difference of the screening of membrane aperture and membrane material and material, oil-polluted water can be carried out simple, separate efficiently, and then solve the problem that oil-polluted water environmental pollution is serious.But, oil-water separation film in use, owing to oil droplet is piled up in the adhesion within film surface and duct, causes membrane flux rapid decrease, has a strong impact on the service life of film, constrain promoting the use of of oil-water separation film.Research and development have the oil-water separation membrane material of excellent stain resistance and are significant.
Recent research indicate that, suitably regulation and control environmental microbes and increase the hydrophilic of material, can the pollution resistance of reinforcing membrane significantly.Meng Jianqiang et al. by commodity Kynoar membrane surface modification, enhancing the hydrophilic on film surface, make film have high-dirt-resistance can under the conditions of high concentration oil-water separation long-play (publication number CN 104313796A).Zhang Feng et al. is prepared for carboxyted polypropylene nitrile oil-water separation film by alkali induction polyacrylonitrile inversion of phases.This film has Superhydrophilic and low oily adhesiveness, and after oil hydrosol can realize sharp separation, and separation, flow recovery is up to 85% (Journal of Membrane Science, 2016,513:67-73).Above-mentioned oil-water separation film has preferable separating effect to oil water mixture, has certain stain resistance.But the preparation of these films and modification are more complicated, and the water flux of film is the highest.Additionally, the raising of above-mentioned separation film antifouling property is the chemical composition by single regulation film surface, promote limitation.Therefore we need badly and find one to prepare flux height, the method for the oil-water separation film that stain resistance is good.
We have chosen polyacrylonitrile and the graphene oxide raw material as reaction, is prepared for hydrolyzed polyacrylonitrile and the compound porous fibrous membrane of graphene oxide by electrostatic spinning technique and alkali treatment method.The fiber forming this fibrous membrane has a lot of fusiform node, and these nodes are induced by graphene oxide.Then, this porous fiber film is carried out alkali process, fiber surface is hydrolyzed, increase the hydrophilic of film.The pattern of fibrous membrane and hydrophilic can process intensity by graphene oxide concentration and alkali and regulate and control respectively.This porous fiber film has good oil hydrosol separating power and the most excellent antifouling property after testing.Polyacrylonitrile stable chemical nature, cheap, it is good porous fibre membrane material；Graphene oxide has the two-dimensional structure of uniqueness, and surface and the oxygen-containing functional group of edge rich in oil, it is easy to dispersion.Oil hydrosol can be separated by hydrolyzed polyacrylonitrile and the compound porous fibrous membrane of graphene oxide, and good separating effect, mechanical strength are high, and preparation method is simple, safety and environmental protection, has good using value and market prospect.
Summary of the invention
The present invention seeks to use a kind of simple and environmentally-friendly method to prepare a kind of separable oil hydrosol, and good separating effect, mechanical strength is high, is difficult to contaminated oil hydrosol separation film.
As a example by polyacrylonitrile and graphene oxide, illustrate that the present invention's realizes process below.We have chosen polyacrylonitrile and the graphene oxide raw material as reaction, is prepared for hydrolyzed polyacrylonitrile and the compound porous fibrous membrane of graphene oxide by electrostatic spinning technique and alkali treatment method.Polyacrylonitrile stable chemical nature, is good porous fiber film backing material；Polyvinylpyrrolidone and polyethyleneglycol diacrylate are respectively provided with good amphipathic property, can be with the separating property of reinforcing membrane；Graphene oxide has the two-dimensional structure of uniqueness, and surface and the oxygen-containing functional group of edge rich in oil, it is easy to dispersion.Oil hydrosol can be separated by hydrolyzed polyacrylonitrile and the compound porous fibrous membrane of graphene oxide, and good separating effect, mechanical strength are high, and preparation method is simple, safety and environmental protection, and it is realized by step in detail below:
(1) polyacrylonitrile is dissolved in dimethyl formamide solution, stirs 6 hours under room temperature.Again in graphene oxide ultrasonic disperse to dimethylformamide, concentration is 30mg/mL.By admixed together for the solution of polyacrylonitrile and graphene oxide, according to the mass ratio 10:1 of polyacrylonitrile and graphene oxide.By mixture magnetic agitation 6 hours at normal temperatures, get a uniform mixture.
(2) suck the homogeneous mixture solotion that step (1) obtains in syringe, and No. 20 syringe needles are installed.Syringe is loaded in the syringe pump of electrospinning device, adjust the fltting speed of syringe pump be 1 milliliter per hour, adjusting syringe needle to the distance of transfer roller receptor is 8～15 centimetres.Covering one layer of masking foil on transfer roller receptor, adjusting transfer roller receptor velocity of rotation is 60～100 rpms.The positive high voltage of high voltage power supply is connected to syringe needle, and adjusting voltage is 15～20 kilovolts, and the negative high voltage of high voltage power supply is connected to transfer roller receptor, and adjusting voltage is-1～-2 kilovolts.
(3) starting syringe pump system, spinning 2 hours under the conditions of 40 DEG C, spinning is taken masking foil and porous fiber film from transfer roller receptor off after completing, it is dried 6 hours under the conditions of 80 DEG C.After drying porous fiber film is taken off from masking foil.
(4) porous fiber film that step (3) obtains is put in the sodium hydroxide solution of 10 mMs every liter, soak 5 hours under the conditions of 40～50 DEG C.Put in the dilute hydrochloric acid of 1 mM every liter after taking-up, soak 1 hour under the conditions of 40～50 DEG C.With deionized water rinsing after taking-up, it is dried 5 hours at again 60 DEG C.
The present invention uses a kind of simple and environmentally-friendly method to be prepared for separable oil hydrosol, and good separating effect, and mechanical strength is high, is difficult to contaminated porous fiber film, has huge applications and be worth in terms of oily waste water treatment.
Accompanying drawing illustrates:
Accompanying drawing 1 is the scanning electron microscope diagram sheet according to porous fiber film provided by the present invention.
Accompanying drawing 2 is according to porous fiber film provided by the present invention water contact angle picture the most in the same time.
Accompanying drawing 3 is oil hydrosol comparison diagram before and after this material separation.
Detailed description of the invention:
The present invention is described in detail below in conjunction with the accompanying drawings with embodiment.
Embodiment 1, takes 5 milliliters of dimethyl formamide solutions, joins in dimethyl formamide solution by 0.525 gram of polyacrylonitrile, and magnetic agitation 6 hours, get a uniform mixture at normal temperatures.Take 5 milliliters of dimethyl formamide solutions, 150 grams of graphene oxides are joined in dimethyl formamide solution, ultrasonic disperse 2 hours, get a uniform mixture.In polyacrylonitrile solution, add the graphene oxide dispersion of 1.75 milliliters, magnetic agitation 6 hours, get a uniform mixture.Suck 3 milliliters of solution in 5 milliliters of syringes, and No. 20 syringe needles be installed, syringe is loaded in the syringe pump of electrospinning device, adjust the fltting speed of syringe pump be 1 milliliter per hour, adjusting syringe needle to the distance of receptor is 8～15 centimetres.Covering one layer of masking foil on transfer roller receptor, adjusting receptor velocity of rotation is 60 rpms.The positive high voltage of high voltage power supply is connected to syringe needle, and adjusting voltage is 18 kilovolts, and the negative high voltage of high voltage power supply is connected to transfer roller receptor, adjusts voltage and is-1.5 kilovolts.Starting syringe pump system, spinning 2 hours under the conditions of 40 DEG C, spinning takes masking foil and porous fiber film off after completing from transfer roller receptor, it is dried 6 hours under the conditions of 80 DEG C.After drying porous fiber film is taken off from masking foil.Dried porous fiber film is put in the sodium hydroxide solution of 10 mMs every liter, soak 5 hours under the conditions of 40 DEG C.Put in the dilute hydrochloric acid of 1 mM every liter after taking-up, soak 1 hour under the conditions of 40 DEG C.With deionized water rinsing after taking-up, it is dried 5 hours at again 60 DEG C.
The most dried porous fiber film is installed to solution strainer, under 0.1bar pressure, pours deionized water into, measure pure water flux F1.Then, under 0.1bar pressure, pour lubricating oil emulsion into, measure osmotic water flux F, F and be up to 3700 liters every square metre per hour.Test terminates the lubricating oil that rear deionized water rinsing film surface retains, and is pouring deionized water into, measures pure water flux F2.Generally F2Compare F1Value be flow regeneration rate, record flow regeneration rate and be up to 90%.
Fig. 1 gives the scanning electron microscope diagram sheet of porous fiber film, from the figure, it can be seen that have obvious node structure at fiber surface, fibre diameter is about 300～500 nanometers.
Fig. 2 gives porous fiber film water contact angle picture the most in the same time, from the figure, it can be seen that fibrous membrane has extraordinary Superhydrophilic, it is possible to achieve quick humidification.
Fig. 3 is oil hydrosol comparison diagram before and after this material separation, and before and after finding to separate, emulsion color occurs substantially to change, and shows that porous fiber film has the separating effect of excellence to emulsion.
Claims (1)
1. there is a fiber oil-water separation film for excellent antifouling property, obtain especially by following methods:
(1) polyacrylonitrile is dissolved in dimethyl formamide solution, stirs 6 hours under room temperature, then graphene oxide ultrasonic disperse to dimethyl formyl
In amine, concentration is 30mg/mL, by admixed together for the solution of polyacrylonitrile and graphene oxide, according to polyacrylonitrile and the quality of graphene oxide
Ratio 10:1, by mixture magnetic agitation 6 hours at normal temperatures, gets a uniform mixture；
(2) suck the homogeneous mixture solotion that step (1) obtains in syringe, and No. 20 syringe needles are installed, syringe is loaded the note of electrospinning device
Penetrate in pump, adjust the fltting speed of syringe pump be 1 milliliter per hour, adjusting syringe needle to the distance of transfer roller receptor is 8～15 centimetres, connects at transfer roller
Receiving and cover one layer of masking foil on device, adjusting transfer roller receptor velocity of rotation is 60～100 rpms, and the positive high voltage of high voltage power supply is connected to syringe
Syringe needle, adjusting voltage is 15～20 kilovolts, and the negative high voltage of high voltage power supply is connected to transfer roller receptor, and adjusting voltage is-1～-2 kilovolts；
(3) starting syringe pump system, spinning 2 hours under the conditions of 40 DEG C, spinning takes masking foil and porous fiber film off after completing from transfer roller receptor,
It is dried 6 hours under the conditions of 80 DEG C, after drying porous fiber film is taken off from masking foil；
(4) porous fiber film that step (3) obtains is put in the sodium hydroxide solution of 10 mMs every liter, under the conditions of 40～50 DEG C, soak 5 little
Time, put in the dilute hydrochloric acid of 1 mM every liter after taking-up, soak 1 hour under the conditions of 40～50 DEG C, with deionized water rinsing after taking-up, again
It is dried 5 hours at 60 DEG C；
Oil hydrosol can be separated by this porous fiber film, and good separating effect, antifouling property are strong.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107059249A (en) * | 2017-04-21 | 2017-08-18 | 浙江华晨非织造布有限公司 | A kind of footwear material and the special hydrophilic nonwoven fabrics of filtering and its manufacture method |
| CN107983180A (en) * | 2017-11-20 | 2018-05-04 | 中国石油大学(华东) | A kind of oil hydrosol seperation film of metal organic framework compound/polyacrylonitrile |
| CN108103771A (en) * | 2017-11-28 | 2018-06-01 | 东华大学 | A kind of redox graphene assembling polyacrylonitrile fibre and preparation method thereof |
| CN108246112A (en) * | 2018-02-12 | 2018-07-06 | 天津工业大学 | A kind of preparation method of super hydrophilic, underwater superoleophobic polyacrylonitrile-radical water-oil separationg film |
| CN108950715A (en) * | 2018-07-02 | 2018-12-07 | 中国石油天然气集团有限公司 | A kind of carbon ball/polyacrylonitrile fibre material and its preparation method and application |
| WO2019007217A1 (en) * | 2017-07-01 | 2019-01-10 | 中国石油化工股份有限公司 | Spider-silk-like polymer fiber, preparation method therefor and use thereof |
| CN109208102A (en) * | 2017-07-01 | 2019-01-15 | 中国石油化工股份有限公司 | A kind of class spider silk polymer fiber and preparation method thereof based on column chromatography silica gel |
| CN109208110A (en) * | 2017-07-01 | 2019-01-15 | 中国石油化工股份有限公司 | A kind of class spider silk polymer fiber and preparation method thereof based on aspherical small porous particle |
| CN109736022A (en) * | 2019-03-07 | 2019-05-10 | 浙江理工大学 | A kind of preparation method of the water-oil separating material with photothermal response |
| CN110424099A (en) * | 2019-07-31 | 2019-11-08 | 厦门理工学院 | A kind of multistage composite nano fibrous membrane and preparation method thereof for water-oil separating |
| CN112915807A (en) * | 2021-01-29 | 2021-06-08 | 华中科技大学 | Polar aprotic solvent-resistant polyacrylonitrile separation membrane and preparation method and application thereof |
| CN114150435A (en) * | 2021-12-06 | 2022-03-08 | 东北林业大学 | Electrostatic spinning nano composite fiber membrane and preparation method thereof |
| CN114197114A (en) * | 2021-12-01 | 2022-03-18 | 同济大学 | Super-hydrophilic conductive nanofiber membrane and method for treating emulsion by using same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107059249A (en) * | 2017-04-21 | 2017-08-18 | 浙江华晨非织造布有限公司 | A kind of footwear material and the special hydrophilic nonwoven fabrics of filtering and its manufacture method |
| CN110914488A (en) * | 2017-07-01 | 2020-03-24 | 中国石油化工股份有限公司 | Spider silk-like polymer fibers, method for producing same, and use thereof |
| CN110914488B (en) * | 2017-07-01 | 2022-01-07 | 中国石油化工股份有限公司 | Spider silk-like polymer fibers, method for producing same, and use thereof |
| CN109208110B (en) * | 2017-07-01 | 2020-06-09 | 中国石油化工股份有限公司 | Spider silk-like polymer fiber based on non-spherical porous particles and preparation method thereof |
| TWI786144B (en) * | 2017-07-01 | 2022-12-11 | 大陸商中國石油化工科技開發有限公司 | Spider silk-like polymer fiber, its preparation method and its use |
| WO2019007217A1 (en) * | 2017-07-01 | 2019-01-10 | 中国石油化工股份有限公司 | Spider-silk-like polymer fiber, preparation method therefor and use thereof |
| CN109208102A (en) * | 2017-07-01 | 2019-01-15 | 中国石油化工股份有限公司 | A kind of class spider silk polymer fiber and preparation method thereof based on column chromatography silica gel |
| CN109208110A (en) * | 2017-07-01 | 2019-01-15 | 中国石油化工股份有限公司 | A kind of class spider silk polymer fiber and preparation method thereof based on aspherical small porous particle |
| US11572638B2 (en) | 2017-07-01 | 2023-02-07 | China Petroleum & Chemical Corporation | Spider-silk-like polymer fiber, preparation method therefor and use thereof |
| CN107983180A (en) * | 2017-11-20 | 2018-05-04 | 中国石油大学(华东) | A kind of oil hydrosol seperation film of metal organic framework compound/polyacrylonitrile |
| CN108103771B (en) * | 2017-11-28 | 2020-10-30 | 东华大学 | Reduced graphene oxide assembled polyacrylonitrile fiber and preparation method thereof |
| CN108103771A (en) * | 2017-11-28 | 2018-06-01 | 东华大学 | A kind of redox graphene assembling polyacrylonitrile fibre and preparation method thereof |
| CN108246112B (en) * | 2018-02-12 | 2021-06-11 | 天津工业大学 | Preparation method of super-hydrophilic and underwater super-oleophobic polyacrylonitrile-based oil-water separation membrane |
| CN108246112A (en) * | 2018-02-12 | 2018-07-06 | 天津工业大学 | A kind of preparation method of super hydrophilic, underwater superoleophobic polyacrylonitrile-radical water-oil separationg film |
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| CN108950715A (en) * | 2018-07-02 | 2018-12-07 | 中国石油天然气集团有限公司 | A kind of carbon ball/polyacrylonitrile fibre material and its preparation method and application |
| CN109736022A (en) * | 2019-03-07 | 2019-05-10 | 浙江理工大学 | A kind of preparation method of the water-oil separating material with photothermal response |
| CN109736022B (en) * | 2019-03-07 | 2020-06-30 | 浙江理工大学 | Preparation method of oil-water separation material with photo-thermal responsiveness |
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| CN112915807A (en) * | 2021-01-29 | 2021-06-08 | 华中科技大学 | Polar aprotic solvent-resistant polyacrylonitrile separation membrane and preparation method and application thereof |
| CN112915807B (en) * | 2021-01-29 | 2022-08-02 | 华中科技大学 | Polar aprotic solvent-resistant polyacrylonitrile separation membrane and preparation method and application thereof |
| CN114197114A (en) * | 2021-12-01 | 2022-03-18 | 同济大学 | Super-hydrophilic conductive nanofiber membrane and method for treating emulsion by using same |
| CN114150435A (en) * | 2021-12-06 | 2022-03-08 | 东北林业大学 | Electrostatic spinning nano composite fiber membrane and preparation method thereof |
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Application publication date: 20161012 |