CN109929128A - Near field direct write based on PEO electrospinning film substrate focuses and micro- pattern is detached from method - Google Patents
Near field direct write based on PEO electrospinning film substrate focuses and micro- pattern is detached from method Download PDFInfo
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Abstract
The present invention relates to electrospinning direct-writing technical fields, it is focused more particularly to the near field direct write based on PEO electrospinning film substrate and micro- pattern is detached from method, the invention proposes a kind of electrospinning substrates using PEO electrospinning film in conjunction with aluminium foil, and the focusing of electrospinning direct-writing jet stream and the lossless disengaging of micro- pattern are realized for electrospinning material not soluble in water.This method needs first first to spin one layer of water solubility PEO tunica fibrosa with electrostatic spinning technique in grounded metal substrate, a composite electrospun substrate is made, micro- pattern is printed with electrospinning direct writing technology toward in substrate later, composite substrate is finally inconjunction with micro- pattern to be immersed in together in selection solution, PEO can dissolve at this time, and micro- pattern will not then dissolve, at this time since linking objective tunica fibrosa and the material of substrate dissolve, therefore micro- pattern is detached from substrate.The present invention uses the above method, and the autocollimatic coke and the micro- pattern of electrospinning direct-writing that electrospinning direct-writing can be realized are separated with the lossless of metallic substrates.
Description
Technical field
The present invention relates to electrospinning direct-writing technical fields, and in particular to a kind of PEO electrospinning film is poly- as the electrospinning direct-writing of substrate
Burnt and micro- pattern is detached from technology.
Background technique
Electrostatic spinning (Electrospinning) is a kind of effect using electric field to viscosity solution, so that solution overcomes
Surface tension generates jet stream, and the technology of micrometer/nanometer grade fiber is generated with this.And electrospinning direct-writing technology
(Electrohydrodynamic Direct Writing, EDW) is then a kind of novel solid jet based on electrostatic spinning
Printing techniques, it is suppressed that spiral, bending and the unsteady motion of conventional electrostatic spinning jet overcome conventional electrostatic spinning nanometer
The shortcomings that fiber unordered deposition, utilizes stability line jet stream to carry out the direct write preparation of ordered nano-structure.With it is costly and complicated
Photoetching process is compared, and electrospinning direct-writing technology is a kind of simple and effective nanofiber direct write deposition mode, he can be by nano material
The device done with manufacturing methods such as conventional lithographies effectively integrates, therefore in flexible electronic, MEMS, microsensor, biofiltration
The characteristics of fields such as device, microelectronics suffer from extensive use, and wherein flexible electronic technology is due to low cost, flexibility, mass
Slowly become the mainstream of electronic industry and the development of minute manufacturing technology, and improves the core of electronic market of new generation competitiveness
The heart.The base material of flexible electronic mainly includes flexible glass plate, organic polymer, flexible metal foil etc., and organic polymer
Base material has very high flexible, lower cost and can use the mass production of roll-to-roll process integration realization, therefore
As most common material in flexible electronic substrate.Electrospinning direct-writing technology has outstanding advantage in flexible electronic manufacturing field, but
It is due to polymer material poorly conductive, using it as the application of substrate progress polymer solution electrospinning direct-writing, there are exceptional hardships.
It is very big that correlative study shows that the electric conductivity of electrospinning direct-writing substrate influences jet stream deposition, due to deposition in non-conducting material substrate
Charge on fiber can not be guided by substrate, cause to accumulate a large amount of charges in substrate, electrical charge rejection electrospinning jet leads to jet stream
The dynamic aggravation of whip, greatly weakens direct write precision.Simultaneously as most of flexible circuit cannot be directly written on conductor, and straight
The extremely difficult grafting for separating and realizing flexible circuit with substrate of the nanofiber write, therefore strongly limit electrospinning direct-writing technology metal
The application of substrate.The above problem greatly constrains electrospinning direct-writing technology in the development in flexible electronic field, in order to overcome these to ask
Topic
Summary of the invention
For this reason, it may be necessary to provide a kind of simple and easy to do, method for not needing investment extras, during overcoming electrospinning direct-writing
The whip of jet stream moves problem and the micro- pattern of electrospinning direct-writing is difficult to the problem of tearing off from substrate, realize the autocollimatic of electrospinning direct-writing it is burnt and
The lossless quick separating of the micro- pattern of electrospinning direct-writing and substrate.
To achieve the above object, it is focused the present invention provides the near field direct write based on PEO electrospinning film substrate and micro- pattern is de-
From method comprising the steps of: Step 1: spinning one layer of sacrifice isolation fibre in electrospinning substrate with electrostatic spinning technique PEO
Film is tieed up, sacrifice isolation tunica fibrosa is known as PEO tunica fibrosa；Step 2: with electrospinning direct-writing technology target material on PEO tunica fibrosa
The material spinning micro- pattern of target, since the high pore characteristic of PEO tunica fibrosa realizes that the autocollimatic of electrospinning direct-writing is burnt；Step 3: by metal
Substrate is impregnated together with PEO tunica fibrosa and micro- pattern into ionized water, and dissolution removes PEO tunica fibrosa, realizes the micro- pattern of electrospinning direct-writing
With the lossless quick separating of electrospinning substrate.
Further, the target material is Kynoar, i.e. PVDF, any one in PAN, PI, PS or PES
Material not soluble in water.
Further, the target material is the PVDF solution of 6wt%~20wt%, the ratio of NMP and acetone in solvent
Example 2:8~8:2, step are as follows: the NMP of volume needed for measuring then weighs PVDF powder, is added in aforementioned liquids, then measures again
Take acetone, pour into aforementioned liquids, magnetic particle is finally added into mixed liquor, under magnetic field stir 6~make each ingredient abundant for 24 hours
Mixing, the target material is not soluble in water and is in deionized water not in curling, shrinkage.
Further, the electrospinning substrate is aluminium foil, tinfoil paper or smooth metal plate.
Further, the electric spinning equipment of spinning PEO tunica fibrosa and the micro- patterns of electrospinning direct-writing is same set of electric spinning equipment.
Further, spinning PEO tunica fibrosa is two sets of different electrospinnings from the electric spinning equipment of the micro- patterns of electrospinning direct-writing
Device.
Further, in the step 2, after the completion of PEO tunica fibrosa spinning, electrospinning direct-writing is carried out immediately and spins micro- pattern.
Further, in the step 2, after the completion of PEO tunica fibrosa spinning, interval carries out electrospinning direct-writing spinning after S seconds micro-
Pattern.
Further, the S is the random natural number more than or equal to 1.
It is different from the prior art, above-mentioned technical proposal has the advantages that
1, the present invention provides a kind of electrospinning substrates using PEO electrospinning film in conjunction with aluminium foil, for electricity not soluble in water
Woven material realizes the focusing of electrospinning direct-writing jet stream and the lossless disengaging of micro- pattern.The present invention uses in grounded metal substrate first
Electrostatic spinning technique first spins one layer of water solubility PEO tunica fibrosa, and a composite electrospun substrate is made, later toward using electrospinning direct in substrate
Writing technology prints micro- pattern, and composite substrate is finally inconjunction with micro- pattern and is immersed in selection solution together, PEO can be molten at this time
Solution, and micro- pattern will not then dissolve, at this time since linking objective tunica fibrosa and the material of substrate dissolve, therefore micro- pattern is detached from base
Bottom.
2, the present invention affects distribution of charges, changes space electric field since there are gaps in the PEO tunica fibrosa of spinning,
It forms point effect and the effect that auxiliary electric field focuses, stablizes jet stream is produced to electrospinning direct-writing process, it is achieved that electrospinning direct
The autocollimatic write is burnt.
2, the present invention provides a kind of methods that is simple and easy to do, not needing investment extras to realize autocollimatic coke and electrospinning
The lossless quick separating of the micro- pattern of direct write and substrate, application of the extension electrospinning direct-writing technology in flexible electronic field.
3, the present invention spins one layer of PEO tunica fibrosa first in substrate, the micro- pattern of electrospinning direct-writing on PEO tunica fibrosa, due to
The operational characteristic of electrostatic spinning, 1cm2Only have the PEO tunica fibrosa of μ g/mg rank, the amount of the PEO material deposited on unit area down
Actually seldom, it therefore can quickly dissolve in deionized water clean.
4, electrospinning fibre of the invention unordered deposition stack so that PEO tunica fibrosa there are certain space thickness so that
It can well separate the micro- pattern of electrospinning direct-writing with substrate, prevent viscous the case where the sticking substrate generation of electrospinning direct-writing pattern with this,
Therefore it can be realized the micro- pattern of electrospinning direct-writing to separate with the lossless of metallic substrates.
Detailed description of the invention
Fig. 1 is the spinning schematic diagram of far field PEO electrospinning fibre.
Fig. 2 is the schematic diagram of PEO tunica fibrosa made from the electrospinning of far field.
Fig. 3 is near field electrospinning PVDF fibre spinning schematic diagram.
Fig. 4 is the micro- pattern schematic diagram of PVDF made from the electrospinning of near field.
Fig. 5 is dissolved in the schematic diagram that the micro- pattern of PVDF made from the electrospinning of near field is obtained after water for PEO tunica fibrosa.
Detailed description of main elements:
1. conductive substrates, 2. far field PEO electrospinning fibres, PEO tunica fibrosa made from 3. far field electrospinnings, 4. near field electrospinnings
PVDF fiber, the micro- pattern of PVDF made from 5. near field electrospinnings, 6. deionized waters.
Specific embodiment
Technology contents, construction feature, the objects and the effects for detailed description technical solution, below in conjunction with specific reality
It applies example and attached drawing is explained in detail.
Embodiment 1:
With reference to shown in Fig. 1-Fig. 5, high porosity and water-soluble characteristic of the present embodiment using PEO tunica fibrosa, it is difficult to realize
It is dissolved in the focusing of the electrospinning direct-writing jet stream of the material of water and the lossless disengaging of micro- pattern.Near field based on PEO electrospinning film substrate
Direct write focuses and micro- pattern is detached from method comprising the steps of:
One, material selects
In the present embodiment, target material is Kynoar (PVDF), and isolation expendable material is polyethylene glycol oxide (PEO),
Collection substrate is masking foil, and separatory solution is deionized water H2O；The mixing liquid of DMF and acetone is chosen as PVDF's
Solvent chooses the solvent of alcohol and deionized water as PEO.Wherein Kynoar is a kind of macromolecule material for being insoluble in water
Material, and be in deionized water not in significantly to deform.Electrospinning substrate can be the conductions such as aluminium foil, tinfoil paper, smooth metal plate
Material.
Two, the preparation of electrospinning liquid
The PVDF solution 100mL of 10wt% is prepared, the ratio of NMP and acetone is 5:5, step in solvent are as follows: measures 50mL
NMP then weighs 10.069gPVDF powder, is added in aforementioned liquids, then measures 50mL acetone again, pour into aforementioned liquids,
Magnetic particle is finally added into mixed liquor, 12h is stirred under magnetic field is sufficiently mixed each ingredient.
Wherein, different solution concentrations is corresponded to, the ratio of NMP and acetone can arbitrarily be selected within the scope of 2:8~8:2 in solvent
It selects, changes solvent evaporation rate, to control fiber morphology.
The PEO solution 72mL of 10wt% is prepared, the ratio of alcohol and deionized water is 3:1 in solvent, and step is substantially are as follows: amount
15mL deionized water is taken, 8gPEO powder is then weighed, is added in aforementioned liquids, is then measured 57mL alcohol again, pour into aforementioned liquid
In body, magnetic particle is finally added into mixed liquor, 12h is stirred under magnetic field is sufficiently mixed each ingredient.
Three, the preparation of electrospun fiber membrane and the micro- pattern of electrospinning direct-writing are produced
Using electrospinning device, electrostatic spinning is carried out under suitable parameter.Refering to what is shown in Fig. 1, first interpolar away from
8cm, voltage across poles 10kV under conditions of 120 μ L/h of liquid supply speed, spin one layer with prepared PEO solution on collecting substrate
Tunica fibrosa, the spinning time is 2h, with reference to shown in Fig. 2.Then with reference to shown in Fig. 3 and Fig. 4, in interpolar away from 6mm, voltage across poles
Under conditions of 2.5kV, 20 μ L/h of liquid supply speed, with prepared PVDF solution micro- figure that direct write is set on collecting substrate
Case.
In the process since the charge of direct writing of materials institute band can pass through PEO fiber via the DMF/ acetone soln that do not wave completely
The hole of film greatly weakens repulsive interaction of the substrate to jet stream, while deposited picture forms from ground connection aluminum foil substrate export
Zero potential protrusion, changes space electric field, and point effect produces auxiliary electric field focusing to electrospinning direct-writing process, stablizes jet stream
Effect, therefore obtain the high nanofiber pattern of precision.And since the high porosity of PEO tunica fibrosa makes electrospinning direct-writing
The non-volatile complete solvent of target material penetrates into metallic ground substrate through hole in the process, in micro- pattern and conductive substrates
Between built a conductive channel, charge of the accumulation on micro- pattern is imported into the earth, substrate is eliminated to the electricity of jet stream with this
Lotus repels, and plays the role of stable jet stream；Meanwhile the micro- pattern for emptying charge forms zero potential protrusion, changes space
Electric field, point effect produce the effect that auxiliary electric field focuses, stablizes jet stream to electrospinning direct-writing process, improve electric field direct write
Pattern accuracy；Same set of equipment can be used by spinning micro- pattern and PEO tunica fibrosa, avoid additional investment.Certainly in other
In embodiment, PEO tunica fibrosa is spinned from the electric spinning equipment of electrospinning direct-writing patterns and is also possible to two different covering devices；It sacrifices
It is isolated after the completion of tunica fibrosa spinning, the micro- pattern of electrospinning direct-writing can spin immediately, have great flexibility, so that streamlined produces
It is possibly realized.Therefore after the completion of PEO tunica fibrosa spinning, electrospinning direct-writing is carried out immediately and spins micro- pattern.Any second can also be spaced
Electrospinning direct-writing is carried out afterwards spins micro- pattern.
Four, the separation of target fibers film and substrate
With reference to shown in Fig. 4 and Fig. 5, tinfoil paper substrate is impregnated in ionized water of entering together with tunica fibrosa, due to Static Spinning
The operational characteristic of silk, the only PEO tunica fibrosa of μ g/mg rank under 1cm2, the amount of the PEO material deposited on unit area is actually
Seldom, therefore in deionized water can quickly dissolve it is clean, using PEO and target material for the poor solubility of deionized water
It is different, PEO sacrificial layer is dissolved quickly, so that the separation layer between the micro- pattern of target and substrate disappears, electrospinning direct-writing figure is realized with this
Lossless disengaging between case and substrate.The unordered deposition of electrospinning fibre stacks so that PEO tunica fibrosa makes there are certain space thickness
Obtaining it can well separate the micro- pattern of electrospinning direct-writing with substrate, prevent viscous the case where the sticking substrate hair of electrospinning direct-writing pattern with this
Raw, the dissolution process of PEO tunica fibrosa is greatly facilitated in the distinctive high porosity of electrospun fiber membrane, high-specific surface area characteristic；At this time
The micro- pattern of PVDF is detached from substrate naturally, thus separates and obtains the micro- pattern of high-precision PVDF, which can be grafted high score
In sub- flexible substrates, to obtain the flexible electronic of high-precision high molecular material substrate.
Five, implementation result
In the case where no investment extras, the present embodiment realize the micro- pattern of PVDF high-precision electrospinning direct-writing and
Micro- pattern is separated with the lossless of substrate in high precision, easy to operate, technique refining.The micro- pattern of the high-precision of acquisition is transferred to arbitrarily
In flexible substrates, the flexible electronic of different base is obtained with this, it might even be possible to realize high molecular material substrate in this way
Micro- pattern flexible electronic is produced in high precision, is had broad application prospects.
Embodiment 2
The basic procedure of the present embodiment is same as Example 1, the difference is that:
The PVDF solution 100mL of 6wt% is prepared, the ratio of NMP and acetone is 5:5, step in solvent are as follows: measures 50mL
NMP then weighs 5.785gPVDF powder, is added in aforementioned liquids, then measures 50mL acetone again, pour into aforementioned liquids,
Magnetic particle is finally added into mixed liquor, 12h is stirred under magnetic field is sufficiently mixed each ingredient.
Wherein, different solution concentrations is corresponded to, the ratio of NMP and acetone can arbitrarily be selected within the scope of 2:8~8:2 in solvent
It selects, changes solvent evaporation rate, to control fiber morphology.
Embodiment 3
The basic procedure of the present embodiment is same as Example 1, the difference is that:
The PVDF solution 100mL of 20wt% is prepared, the ratio of NMP and acetone is 5:5, step in solvent are as follows: measures 50mL
NMP then weighs 22.656gPVDF powder, is added in aforementioned liquids, then measures 50mL acetone again, pour into aforementioned liquids,
Magnetic particle is finally added into mixed liquor, 12h is stirred under magnetic field is sufficiently mixed each ingredient.
Wherein, different solution concentrations is corresponded to, the ratio of NMP and acetone can arbitrarily be selected within the scope of 2:8~8:2 in solvent
It selects, changes solvent evaporation rate, to control fiber morphology.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or the terminal device that include a series of elements not only include those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or end
The intrinsic element of end equipment.In the absence of more restrictions, being limited by sentence " including ... " or " including ... "
Element, it is not excluded that there is also other elements in process, method, article or the terminal device for including the element.This
Outside, herein, " being greater than ", " being less than ", " being more than " etc. are interpreted as not including this number；" more than ", " following ", " within " etc. understand
Being includes this number.
Although the various embodiments described above are described, once a person skilled in the art knows basic wounds
The property made concept, then additional changes and modifications can be made to these embodiments, so the above description is only an embodiment of the present invention,
It is not intended to limit scope of patent protection of the invention, it is all to utilize equivalent structure or equivalent made by present specification
Process transformation, being applied directly or indirectly in other relevant technical fields, similarly includes in patent protection model of the invention
Within enclosing.
Claims (9)
1. the near field direct write based on PEO electrospinning film substrate focuses and micro- pattern is detached from method, it is characterised in that: include following step
Rapid: Step 1: spinning one layer of sacrifice in electrospinning substrate with electrostatic spinning technique PEO is isolated tunica fibrosa, sacrifice isolation is fine
Dimension film is known as PEO tunica fibrosa；Step 2: the micro- pattern of target is spinned with electrospinning direct-writing technology target material on PEO tunica fibrosa,
Since the high pore characteristic of PEO tunica fibrosa realizes that the autocollimatic of electrospinning direct-writing is burnt；Step 3: by metallic substrates together with PEO tunica fibrosa
And micro- pattern impregnates in ionized water of entering, dissolution removes PEO tunica fibrosa, and the realization micro- pattern of electrospinning direct-writing is lossless with electrospinning substrate
Quick separating.
2. the near field direct write according to claim 1 based on PEO electrospinning film substrate focuses and micro- pattern is detached from method, special
Sign is: the target material is Kynoar (PVDF), PAN, PI, PS or PES.
3. the near field direct write according to claim 2 based on PEO electrospinning film substrate focuses and micro- pattern is detached from method, special
Sign is: the target material is the PVDF solution of 6wt%~20wt%, ratio 2:8~8:2 of NMP and acetone in solvent, step
Suddenly are as follows: the NMP of volume needed for measuring then weighs PVDF powder, is added in aforementioned liquids, acetone is then measured again, before pouring into
State in liquid, magnetic particle be finally added into mixed liquor, under magnetic field stir 6~be for 24 hours sufficiently mixed each ingredient, the target
Material is not soluble in water and is in deionized water not in curling, shrinkage.
4. the near field direct write according to claim 1 based on PEO electrospinning film substrate focuses and micro- pattern is detached from method, special
Sign is: the electrospinning substrate is aluminium foil, tinfoil paper or smooth metal plate.
5. the near field direct write according to claim 1 based on PEO electrospinning film substrate focuses and micro- pattern is detached from method, special
Sign is: the electric spinning equipment of spinning PEO tunica fibrosa and the micro- patterns of electrospinning direct-writing is same set of electric spinning equipment.
6. the near field direct write according to claim 1 based on PEO electrospinning film substrate focuses and micro- pattern is detached from method, special
Sign is: spinning PEO tunica fibrosa is two sets of different electric spinning equipments from the electric spinning equipment of the micro- patterns of electrospinning direct-writing.
7. the near field direct write according to claim 1 based on PEO electrospinning film substrate focuses and micro- pattern is detached from method, special
Sign is: in the step 2, after the completion of PEO tunica fibrosa spinning, carrying out target material electrospinning direct-writing immediately and spins micro- pattern.
8. the near field direct write according to claim 1 based on PEO electrospinning film substrate focuses and micro- pattern is detached from method, special
Sign is: in the step 2, after the completion of PEO tunica fibrosa spinning, interval carries out target material electrospinning direct-writing and spins micro- figure after S seconds
Case.
9. the near field direct write according to claim 8 based on PEO electrospinning film substrate focuses and micro- pattern is detached from method, special
Sign is: the S is the random natural number more than or equal to 1.
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| CN201910078347.0A CN109929128B (en) | 2019-01-28 | 2019-01-28 | Near-field direct-writing focusing and micro-pattern separation method based on PEO (polyethylene oxide) electrospun membrane substrate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111710473A (en) * | 2020-06-09 | 2020-09-25 | 西安交通大学 | Preparation method of patterned flexible conductive film |
| CN113388899A (en) * | 2021-07-15 | 2021-09-14 | 东华大学 | Magnetic lens electrostatic spinning device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101844406A (en) * | 2010-04-23 | 2010-09-29 | 厦门大学 | Device and method for manufacturing micro-nano porous structure |
| WO2012158461A2 (en) * | 2011-05-13 | 2012-11-22 | University Of Florida Research Foundation, Inc. | Fabrication of nanoporous membrane |
-
2019
- 2019-01-28 CN CN201910078347.0A patent/CN109929128B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101844406A (en) * | 2010-04-23 | 2010-09-29 | 厦门大学 | Device and method for manufacturing micro-nano porous structure |
| WO2012158461A2 (en) * | 2011-05-13 | 2012-11-22 | University Of Florida Research Foundation, Inc. | Fabrication of nanoporous membrane |
Non-Patent Citations (1)
| Title |
|---|
| 郑高峰等: "基于近场静电纺丝的微/纳米结构直写技术", 《纳米技术与精密工程》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111710473A (en) * | 2020-06-09 | 2020-09-25 | 西安交通大学 | Preparation method of patterned flexible conductive film |
| CN113388899A (en) * | 2021-07-15 | 2021-09-14 | 东华大学 | Magnetic lens electrostatic spinning device |
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