CN102418237A - Preparation method for electrostatic blended sugar-containing polyacrylonitrile (PAN) nano-fiber membrane - Google Patents
Preparation method for electrostatic blended sugar-containing polyacrylonitrile (PAN) nano-fiber membrane Download PDFInfo
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Abstract
The invention relates to a preparation method for an electrostatic blended sugar-containing polyacrylonitrile (PAN) nano-fiber membrane, which comprises the steps of: 1) dissolving diacid divinyl esters and glucose into anhydrous pyridine and synthesizing glucose vinyl esters by using an enzymatic synthesis technique; adding ammonium persulfate into the glucose vinyl esters, using H2O as solvent and conducting polymerization under the protection of nitrogen to obtain glucose vinyl ester homopolymers; 2) adding dimethyl formamide (DMF) solution of the PAN into the glucose vinyl ester homopolymers to obtain PAN/glucose vinyl ester homopolymer spinning solution; and 3) conducting electrostatic spinning to the PAN/glucose vinyl ester homopolymer spinning solution to obtain a PAN/glucose vinyl ester superfine nano-fiber membrane, and finally drying. The preparation method provided by the invention has the advantages that the operation is simple, the product is easy to obtain and the method is economic and environmental-friendly; and the membrane material provided by the invention contains rich reactive hydrophilic active functional groups and has a potential of being used for subsequent relevant experimental analysis.
Description
Technical field
The invention belongs to the preparation field of nano fibrous membrane, particularly a kind of electrostatic blended spinning contains the preparation method of sugared polyacrylonitrile nano tunica fibrosa.
Background technology
Electrostatic spinning is that a kind of charged Polymer Solution or melt of utilizing flows in electrostatic field and the technology of distortion preparation nanometer to the submicron-scale polymer fiber.With respect to the polymer fiber of conventional method preparation, the fiber that electro-spinning is equipped with has great specific area, and fiber surface has specific forms such as aperture.These characteristics make this fiber at aspects such as filtration, organizational project, hypersensitization sensors very big potential application foreground arranged.Characteristics such as electrostatic spinning also has simply, convenience, cheapness, thus people evoked to its great interest of furtheing investigate.
Polyacrylonitrile (PAN) is one type of commodity polymeric material, good, the anti-common solvent of its fibre forming property, not facile hydrolysis, anti-oxidant, chemically stable, and have excellent anti-bacterium aggressivity.Utilize electrostatic spinning technique, can prepare the PAN nanofiber simply and easily; The formed nano fibrous membrane of the unordered accumulation of PAN nanofiber then has high specific area and porosity, has mechanical strength preferably simultaneously, and its fibre morphology can also be regulated and control through preparation condition.These characteristics make this material demonstrate potential application foreground in fields such as bioengineering, composite, isolated by filtration, sensor and photoelectric devices.
Because its surperficial relative inertness and hydrophily are relatively poor; When separating as the aqueous solution; Especially for bio-medical field and other during with environment that biomolecule contacts, the polyacrylonitrile microporous barrier can with biomolecule generation non-specific interaction, cause protein, blood platelet etc. in a large amount of absorption in film surface; Cause film to pollute, have a strong impact on the military service stability of film.Therefore, be necessary the polyacrylonitrile microporous barrier is carried out surface modification, improve the hydrophily of film on the one hand, improve the contamination resistance of film, increase the service life; Give film on the other hand with new function, widen its range of application.
Summary of the invention
Technical problem to be solved by this invention provides the preparation method that a kind of electrostatic blended spinning contains sugared polyacrylonitrile nano tunica fibrosa; This method is simple to operate, product is prone to handle and economic environmental protection; This nano fibrous membrane has overcome the intrinsic defective of polyacrylonitrile; But contain abundant reactive hydrophilic activated functional groups, improved the non-specific adsorption of material surface and improved the biocompatibility of material surface.
A kind of electrostatic blended spinning of the present invention contains the preparation method of sugared polyacrylonitrile nano tunica fibrosa, comprising:
(1) diacid divinyl ester and glucose were dissolved in the anhydrous pyridine in 1: 1 in molar ratio～4: 1, utilize enzymatic synthetic technology synthesis of glucose ethene fat; In above-mentioned glucose ethene fat, add ammonium persulfate as initator, add H again
2O makes solvent, and stirring reaction 3-5h under 55-60 ℃ of nitrogen protection obtains glucose ethene fat homopolymers after the polymerisation end then;
(2) PAN is dissolved in DMF and obtains the PAN solution that concentration is 0.05～0.07g/ml, add above-mentioned glucose ethene fat homopolymers then, be stirred to dissolving fully, leave standstill then, get PAN/ glucose ethene fat homopolymers spinning solution;
(3) above-mentioned PAN/ glucose ethene fat homopolymers spinning solution is carried out electrostatic spinning and get PAN/ glucose ethene fat superfine nano tunica fibrosa, final drying promptly gets and contains sugared polyacrylonitrile nano tunica fibrosa.
Enzymatic synthetic technology described in the step (1) is: diacid divinyl ester and glucose were dissolved in 50～100mL anhydrous pyridine in 1: 1 in molar ratio～4: 1; Add 0.5～1.5g alkali protease; Putting into 40～60 ℃ of constant-temperature shaking culture casees reacted 3～5 days; Rotating speed is 210rpm, synthesis of glucose ethene fat;
Glucose ethene fat described in the step (1), its crude product separate with silica gel column chromatography purifies, and eluant, eluent is an ethyl acetate, and solvent is that volume ratio is ethyl acetate/methanol/water of 17: 3: 1, uses I
2Colour developing.
It is 0.2～2% that ammonium persulfate described in the step (1) accounts for glucose ethene lipid amount mark.
Adding H described in the step (1)
2After O made solvent, the concentration of glucose ethene fat was 2-3mol/L.
After polymerisation described in the step (1) finishes, with product through acetone precipitation and remove the glucose ethene fat that does not have reaction.
The mass fraction of glucose ethene fat homopolymers is 10%～90% in the PAN/ glucose ethene fat homopolymers spinning solution described in the step (2).
The mass fraction of glucose ethene fat homopolymers is 50%, 55%, 60%, 65% or 70% in the PAN/ glucose ethene fat homopolymers spinning solution described in the step (2).
The technological parameter of the electrostatic spinning described in the step (3) is: the syringe specification is 5ml; The syringe needle internal diameter is 0.4～0.7mm, ejection flow velocity 0.8～2ml/h, electrostatic pressure 10～18kv; Receiving screen adopts the reception of aluminium foil ground connection; Accepting distance is 10～20cm, adopts orthogonal method (change a certain parameter, fix other parameter) adjusting spinning parameter to carry out electricity and spin.
The diameter of the PAN/ glucose ethene fat superfine nano tunica fibrosa of gained is almost constant along with the increase of glucose ethene fat homopolymers mass fraction in the step (3), is 80～250nm.
Drying described in the step (3) is for putting into 40～60 ℃ of freeze-day with constant temperature 24～48h of vacuum drying chamber.
Sugar is a kind of in the biomolecule, extensively is present in the organism, and be the polyhydroxyl compound, have extremely strong hydrophily, therefore, the surface of introducing material to sugar is with the biocompatibility that effectively improves material surface.Therefore, sugar-containing polymer often is used to improve the non-specific adsorption of the material such as hydrophily and CKIs matter of material at material surface.
The present invention obtains diameter and aperture at nano level membrane material PAN/ glucose ethene fat superfine nano tunica fibrosa with polyacrylonitrile and glucose ethene lipid blend.This membrane material has overcome the intrinsic defective of polyacrylonitrile, but contains abundant reactive hydrophilic activated functional groups, has improved the non-specific adsorption of material surface and has improved the biocompatibility of material surface, has to use it and do the potentiality that follow-up related experiment is analyzed.
The present invention is main spinning material with PAN; And mix the good synthesis of glucose ethene fat homopolymers of surfaces for biocompatibility; Through adjustment solvent and relevant spinning condition parameter, successful realization blending, for the research and development of novel nano bioactive materials are offered reference.
Beneficial effect
(1) the present invention adopts the aqueous phase precipitation polymerization to prepare glucose ethene fat homopolymers, and the preparation method is simple to operate, product is prone to handle and economic environmental protection.
(2) membrane material of the present invention has overcome the intrinsic defective of polyacrylonitrile; But contain abundant reactive hydrophilic activated functional groups; Improved the non-specific adsorption of material surface and improved the biocompatibility of material surface, had and use it and do the potentiality that follow-up related experiment is analyzed.
Description of drawings
Fig. 1 is the stereoscan photograph that contains sugared polyacrylonitrile nano tunica fibrosa of Comparative Examples 1, embodiment 1-5 gained; Wherein the stereoscan photograph that contains sugared polyacrylonitrile nano tunica fibrosa of Comparative Examples 1, embodiment 1-5 is respectively (a) and (b) (c), (d), (e) and (f) (spinning voltage is 15kv; Receiving range is 15cm, and the injection flow velocity is 1.5ml/h);
Fig. 2 is the diameter that contains sugared polyacrylonitrile nano tunica fibrosa of Comparative Examples 1, embodiment 1-5 gained and the graph of a relation of glucose ethene fat homopolymers concentration; Wherein the mass fraction of glucose ethene fat homopolymers is respectively 0 (a), 50% (b), 55% (c), 60% (d), 65% (e) in the PAN/ glucose ethene fat homopolymers spinning solution, (electrostatic pressure is 15kv to 70% (f); Receiving range is 15cm, and the injection flow velocity is 1.5ml/h);
Fig. 3 is different monomers and hybrid films FT-IR resolution chart (a. glucose ethene fat; B. glucose ethene fat homopolymers; C.PAN/ glucose ethene fat homopolymers nano fibrous membrane; D.PAN)
The specific embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in the restriction scope of the present invention.Should be understood that in addition those skilled in the art can do various changes or modification to the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
(1) with diacid divinyl ester and glucose according to a certain percentage (4: 1, mol ratio) be dissolved in the anhydrous pyridine, utilize enzymatic synthetic technology synthesis of glucose ethene fat.After reaction finished, crude product separates with silica gel column chromatography purified, and eluant, eluent is an ethyl acetate, solvent be ethyl acetate/methanol/water (17: 3: 1, v/v/v), develop the color with I2.Above-mentioned glycolipid is put in the micro-polymerization pipe, as initator, adds H with ammonium persulfate (APS) (accounting for glucose ethene lipid amount mark is 1.0)
2O makes solvent, and (monomer concentration is 2.5mol/LH
2O), sealing vacuumizes the logical nitrogen in back, repeated multiple times with oil pump.System is placed stirring reaction 3h under 55～60 ℃ of nitrogen protections.
(2) PAN of certain mass is dissolved in DMF and obtains the PAN solution that concentration is 0.06g/ml; Add the homopolymerization of glucose ethene fat then, make its shared mass fraction be respectively 50%, stirred for several hour is to dissolving fully, leaves standstill bubble to be stirred fully form the homogeneous spinning solution.
(3) extract PAN/ glucose ethene fat homopolymers with syringe, be fixed on the electrostatic spinning apparatus, control ejection flow velocity 1.5ml/h; Electrostatic pressure 15kv; Receiving screen adopts the reception of aluminium foil ground connection, and the distance of syringe needle and receiving screen is 10～20cm, adopts orthogonal method (to change a certain parameter; Fix other parameter) the different spinning parameters of adjusting carry out electricity and spin, and must diameter be the PAN/ glucose ethene fat homopolymers superfine nano tunica fibrosa of 80～250nm; Put into 60～80 ℃ of freeze-day with constant temperature 36h of vacuum drying chamber, process the regeneration nano composite membrane, its electromicroscopic photograph is shown in Fig. 1 (b), and diameter Distribution is shown in Fig. 2 (b).
(1) with diacid divinyl ester and glucose according to a certain percentage (3: 1, mol ratio) be dissolved in the anhydrous pyridine, utilize enzymatic synthetic technology synthesis of glucose ethene fat.After reaction finished, crude product separates with silica gel column chromatography purified, and eluant, eluent is an ethyl acetate, solvent be ethyl acetate/methanol/water (17: 3: 1, v/v/v), use I
2Colour developing.Above-mentioned glycolipid is put in the micro-polymerization pipe, as initator, adds H with ammonium persulfate (APS) (accounting for glucose ethene lipid amount mark is 1.0)
2O makes solvent, and (monomer concentration is 2.5mol/L H
2O), sealing vacuumizes the logical nitrogen in back, repeated multiple times with oil pump.System is placed stirring reaction 5h under 55～60 ℃ of nitrogen protections.
(2) PAN of certain mass is dissolved in DMF and obtains the PAN solution that concentration is 0.06g/ml; Add the homopolymerization of glucose ethene fat then, make its shared mass fraction be respectively 55%, stirred for several hour is to dissolving fully, leaves standstill bubble to be stirred fully form the homogeneous spinning solution.
(3) extract PAN/ glucose ethene fat homopolymers with syringe, be fixed on the electrostatic spinning apparatus, control ejection flow velocity 1.5ml/h; Electrostatic pressure 15kv; Receiving screen adopts the reception of aluminium foil ground connection, and the distance of syringe needle and receiving screen is 10～20cm, adopts orthogonal method (to change a certain parameter; Fix other parameter) the different spinning parameters of adjusting carry out electricity and spin, and must diameter be the PAN/ glucose ethene fat homopolymers superfine nano tunica fibrosa of 80-250nm; Put into 60～80 ℃ of freeze-day with constant temperature 24h of vacuum drying chamber, process the regeneration nano composite membrane, its electromicroscopic photograph is shown in Fig. 1 (c), and diameter Distribution is shown in Fig. 2 (c).
Embodiment 3
(1) with diacid divinyl ester and glucose according to a certain percentage (2: 1, mol ratio) be dissolved in the anhydrous pyridine, utilize enzymatic synthetic technology synthesis of glucose ethene fat.After reaction finished, crude product separates with silica gel column chromatography purified, and eluant, eluent is an ethyl acetate, solvent be ethyl acetate/methanol/water (17: 3: 1, v/v/v), use I
2Colour developing.Above-mentioned glycolipid is put in the micro-polymerization pipe, as initator, adds H with ammonium persulfate (APS) (accounting for glucose ethene lipid amount mark is 1.0)
2O makes solvent, and (monomer concentration is 2.5mol/L H
2O), sealing vacuumizes the logical nitrogen in back, repeated multiple times with oil pump.System is placed stirring reaction 4h under 55～60 ℃ of nitrogen protections.
(2) PAN of certain mass is dissolved in DMF and obtains the PAN solution that concentration is 0.06g/ml; Add the homopolymerization of glucose ethene fat then, make its shared mass fraction be respectively 60%, stirred for several hour is to dissolving fully, leaves standstill bubble to be stirred fully form the homogeneous spinning solution.
(3) extract PAN/ glucose ethene fat homopolymers with syringe, be fixed on the electrostatic spinning apparatus, control ejection flow velocity 1.5ml/h; Electrostatic pressure 15kv; Receiving screen adopts the reception of aluminium foil ground connection, and the distance of syringe needle and receiving screen is 10～20cm, adopts orthogonal method (to change a certain parameter; Fix other parameter) the different spinning parameters of adjusting carry out electricity and spin, and must diameter be the PAN/ glucose ethene fat homopolymers superfine nano tunica fibrosa of 80～250nm; Put into 60～80 ℃ of freeze-day with constant temperature 30h of vacuum drying chamber, process the regeneration nano composite membrane, its electromicroscopic photograph is shown in Fig. 1 (d), and diameter Distribution is shown in Fig. 2 (d).
Embodiment 4
(1) with diacid divinyl ester and glucose according to a certain percentage (4: 1, mol ratio) be dissolved in the anhydrous pyridine, utilize enzymatic synthetic technology synthesis of glucose ethene fat.After reaction finished, crude product separates with silica gel column chromatography purified, and eluant, eluent is an ethyl acetate, solvent be ethyl acetate/methanol/water (17: 3: 1, v/v/v), use I
2Colour developing.Above-mentioned glycolipid is put in the micro-polymerization pipe, as initator, adds H with ammonium persulfate (APS) (accounting for glucose ethene lipid amount mark is 1.0)
2O makes solvent, and (monomer concentration is 2.5mol/L H
2O), sealing vacuumizes the logical nitrogen in back, repeated multiple times with oil pump.System is placed stirring reaction 3h under 55～60 ℃ of nitrogen protections.
(2) PAN of certain mass is dissolved in DMF and obtains the PAN solution that concentration is 0.06g/ml; Add the homopolymerization of glucose ethene fat then, make its shared mass fraction be respectively 65%, stirred for several hour is to dissolving fully, leaves standstill bubble to be stirred fully form the homogeneous spinning solution.
(3) extract PAN/ glucose ethene fat homopolymers with syringe, be fixed on the electrostatic spinning apparatus, control ejection flow velocity 1.5ml/h; Electrostatic pressure 15kv; Receiving screen adopts the reception of aluminium foil ground connection, and the distance of syringe needle and receiving screen is 10～20cm, adopts orthogonal method (to change a certain parameter; Fix other parameter) the different spinning parameters of adjusting carry out electricity and spin, and must diameter be the PAN/ glucose ethene fat homopolymers superfine nano tunica fibrosa of 80～250nm; Put into 60～80 ℃ of freeze-day with constant temperature 40h of vacuum drying chamber, process the regeneration nano composite membrane, its electromicroscopic photograph is shown in Fig. 1 (e), and diameter Distribution is shown in Fig. 2 (e).
Embodiment 5
(1) with diacid divinyl ester and glucose according to a certain percentage (4: 1, mol ratio) be dissolved in the anhydrous pyridine, utilize enzymatic synthetic technology synthesis of glucose ethene fat.After reaction finished, crude product separates with silica gel column chromatography purified, and eluant, eluent is an ethyl acetate, solvent be ethyl acetate/methanol/water (17: 3: 1, v/v/v), use I
2Colour developing.Above-mentioned glycolipid is put in the micro-polymerization pipe, as initator, adds H with ammonium persulfate (APS) (accounting for glucose ethene lipid amount mark is 1.0)
2O makes solvent, and (monomer concentration is 2.5mol/L H
2O, sealing vacuumizes the logical nitrogen in back, repeated multiple times with oil pump.System is placed stirring reaction 5h under 55～60 ℃ of nitrogen protections.
(2) PAN of certain mass is dissolved in DMF and obtains the PAN solution that concentration is 0.06g/ml; Add glucose ethene fat homopolymers then, make its shared mass fraction be respectively 70%, stirred for several hour is to dissolving fully, leaves standstill bubble to be stirred fully form the homogeneous spinning solution.
(3) extract PAN/ glucose ethene fat homopolymers with syringe, be fixed on the electrostatic spinning apparatus, control ejection flow velocity 1.5ml/h; Electrostatic pressure 15kv; Receiving screen adopts the reception of aluminium foil ground connection, and the distance of syringe needle and receiving screen is 10～20cm, adopts orthogonal method (to change a certain parameter; Fix other parameter) the different spinning parameters of adjusting carry out electricity and spin, and must diameter be the PAN/ glucose ethene fat homopolymers superfine nano tunica fibrosa of 80～250nm; Put into 60～80 ℃ of freeze-day with constant temperature 48h of vacuum drying chamber, process the regeneration nano composite membrane, its electromicroscopic photograph is shown in Fig. 1 (f), and diameter Distribution is shown in Fig. 2 (f).
Embodiment 6
Glucose ethene fat, glucose ethene fat homopolymers, blending nano fibrous membrane, the PAN of gained among the embodiment 1 are characterized with FI-IR, and its result is as shown in Figure 3 respectively.Can find out the two key (1647cm in the glucose ethene fat by Fig. 3 (a) and 3 (b)
-1) disappear.Can find out that from Fig. 3 (b), 3 (c) and 3 (d) (characteristic peak combines the characteristic of 3 (b), 3 (d) to the blending nano fibrous membrane among 3 (c).
Comparative Examples 1
(1) diacid divinyl ester and glucose are dissolved in the anhydrous pyridine by (4: 1, mol ratio), utilize enzymatic synthetic technology synthesis of glucose ethene fat.After reaction finished, crude product separates with silica gel column chromatography purified, and eluant, eluent is an ethyl acetate, solvent be ethyl acetate/methanol/water (17: 3: 1, v/v/v), use I
2Colour developing.Above-mentioned glycolipid is put in the micro-polymerization pipe, as initator, adds H with ammonium persulfate (APS) (accounting for glucose ethene lipid amount mark is 1.0)
2O makes solvent, and (monomer concentration is 2.5mol/L H
2O), sealing vacuumizes the logical nitrogen in back, repeated multiple times with oil pump.System is placed stirring reaction 3h under 55～60 ℃ of nitrogen protections.
(2) PAN with certain mass is dissolved among the DMF.Stirred for several hour is to dissolving fully, leaves standstill bubble to be stirred fully form the homogeneous spinning solution, and obtaining concentration is the PAN solution of 6%g/ml.
(3) extract PAN/ glucose ethene fat homopolymers with syringe, be fixed on the electrostatic spinning apparatus, control ejection flow velocity 1.0～1.5ml/h; Electrostatic pressure 10～18kv; Receiving screen adopts the reception of aluminium foil ground connection, and the distance of syringe needle and receiving screen is 10～20cm, adopts orthogonal method (to change a certain parameter; Fix other parameter) the different spinning parameters of adjusting carry out electricity and spin, and must diameter be the PAN/ glucose ethene fat superfine nano tunica fibrosa of 80～250nm; Put into 60～80 ℃ of freeze-day with constant temperature 36h of vacuum drying chamber, process the regeneration nano composite membrane, its electromicroscopic photograph is shown in Fig. 1 (a), and diameter Distribution is shown in Fig. 2 (a).
Claims (10)
1. an electrostatic blended spinning contains the preparation method of sugared polyacrylonitrile nano tunica fibrosa, comprising:
(1) diacid divinyl ester and glucose were dissolved in the anhydrous pyridine in 1: 1 in molar ratio～4: 1, utilize enzymatic synthetic technology synthesis of glucose ethene fat; In above-mentioned glucose ethene fat, add ammonium persulfate as initator, add H again
2O makes solvent, and stirring reaction 3-5h under 55～60 ℃ of nitrogen protections obtains glucose ethene fat homopolymers after the polymerisation end then;
(2) polyacrylonitrile (PAN) is dissolved in DMF and obtains the PAN solution that concentration is 0.05～0.07g/ml, add above-mentioned glucose ethene fat homopolymers then, be stirred to dissolving fully, leave standstill then, get PAN/ glucose ethene fat homopolymers spinning solution;
(3) above-mentioned PAN/ glucose ethene fat homopolymers spinning solution is carried out electrostatic spinning and get PAN/ glucose ethene fat superfine nano tunica fibrosa, final drying promptly gets and contains sugared polyacrylonitrile nano tunica fibrosa.
2. a kind of electrostatic blended spinning according to claim 1 contains the preparation method of sugared polyacrylonitrile nano tunica fibrosa; It is characterized in that: the glucose ethene fat described in the step (1); Its crude product separates with silica gel column chromatography purifies; Eluant, eluent is an ethyl acetate, and solvent is that volume ratio is ethyl acetate/methanol/water of 17: 3: 1, uses I
2Colour developing.
3. a kind of electrostatic blended spinning according to claim 1 contains the preparation method of sugared polyacrylonitrile nano tunica fibrosa, it is characterized in that: it is 02～2% that the ammonium persulfate described in the step (1) accounts for glucose ethene lipid amount mark.
4. a kind of electrostatic blended spinning according to claim 1 contains the preparation method of sugared polyacrylonitrile nano tunica fibrosa, it is characterized in that: the adding H described in the step (1)
2After O made solvent, the concentration of glucose ethene fat was 2-3mol/L.
5. a kind of electrostatic blended spinning according to claim 1 contains the preparation method of sugared polyacrylonitrile nano tunica fibrosa, it is characterized in that: after the polymerisation described in the step (1) finishes, product is removed the glucose ethene fat that does not have reaction simultaneously through acetone precipitation.
6. a kind of electrostatic blended spinning according to claim 1 contains the preparation method of sugared polyacrylonitrile nano tunica fibrosa, it is characterized in that: the mass fraction of glucose ethene fat homopolymers is 10%～90% in the PAN/ glucose ethene fat homopolymers spinning solution described in the step (2).
7. a kind of electrostatic blended spinning according to claim 1 contains the preparation method of sugared polyacrylonitrile nano tunica fibrosa, it is characterized in that: the mass fraction of glucose ethene fat homopolymers is 50%, 55%, 60%, 65% or 70% in the PAN/ glucose ethene fat homopolymers spinning solution described in the step (2).
8. a kind of electrostatic blended spinning according to claim 1 contains the preparation method of sugared polyacrylonitrile nano tunica fibrosa; It is characterized in that: the technological parameter of the electrostatic spinning described in the step (3) is: the syringe specification is 5ml, and the syringe needle internal diameter is 0.4～0.7mm, ejection flow velocity 0.8～2ml/h; Electrostatic pressure 10～18kv; Receiving screen employing aluminium foil ground connection receives, and accepting distance is 10～20cm, adopts orthogonal method adjusting spinning parameter to carry out electricity and spins.
9. a kind of electrostatic blended spinning according to claim 1 contains the preparation method of sugared polyacrylonitrile nano tunica fibrosa, it is characterized in that: the diameter of the PAN/ glucose ethene fat superfine nano tunica fibrosa of gained is 80～250nm in the step (3).
10. a kind of electrostatic blended spinning according to claim 1 contains the preparation method of sugared polyacrylonitrile nano tunica fibrosa, it is characterized in that: the drying described in the step (3) is for putting into 40～60 ℃ of freeze-day with constant temperature 24～48h of vacuum drying chamber.
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| CN103194857A (en) * | 2013-04-12 | 2013-07-10 | 东华大学 | Preparation method of electrostatic spinning glucose ether/acrylonitrile copolymer nanofiber membrane |
| CN104947226A (en) * | 2015-07-13 | 2015-09-30 | 山东大学 | Method for preparing PAN/POMs composite fiber membrane through electrostatic spinning |
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| CN102758268A (en) * | 2012-05-11 | 2012-10-31 | 东华大学 | Preparation method of double-hydrophilic thermal-sensitive nanofiber membrane |
| CN102758268B (en) * | 2012-05-11 | 2014-07-02 | 东华大学 | Preparation method of double-hydrophilic thermal-sensitive nanofiber membrane |
| CN102776599A (en) * | 2012-07-10 | 2012-11-14 | 东华大学 | Preparation method of electrospun multi-wall carbon nanotube (MWCNT)/glycopolymer nanofiber membrane |
| CN102899735A (en) * | 2012-07-10 | 2013-01-30 | 东华大学 | Static spinning glycopolymer and acrylonitrile copolymer nano fiber film preparation method |
| CN102776599B (en) * | 2012-07-10 | 2014-02-26 | 东华大学 | Preparation method of electrospun multi-wall carbon nanotube (MWCNT)/glycopolymer nanofiber membrane |
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| CN103194857A (en) * | 2013-04-12 | 2013-07-10 | 东华大学 | Preparation method of electrostatic spinning glucose ether/acrylonitrile copolymer nanofiber membrane |
| CN105155139A (en) * | 2015-06-11 | 2015-12-16 | 浪莎针织有限公司 | Preparation method for electrostatic spinning glucose ester/acrylonitrile copolymer nanofiber membrane and application thereof |
| CN104947226A (en) * | 2015-07-13 | 2015-09-30 | 山东大学 | Method for preparing PAN/POMs composite fiber membrane through electrostatic spinning |
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Application publication date: 20120418 |