CN107201561A - The coaxial of micro-/ nano composite sprays electrospinning method for preparing altogether - Google Patents
The coaxial of micro-/ nano composite sprays electrospinning method for preparing altogether Download PDFInfo
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- CN107201561A CN107201561A CN201710476104.3A CN201710476104A CN107201561A CN 107201561 A CN107201561 A CN 107201561A CN 201710476104 A CN201710476104 A CN 201710476104A CN 107201561 A CN107201561 A CN 107201561A
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- spinning
- coaxial
- shower nozzle
- micro
- liquid storage
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- 239000007921 spray Substances 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000001523 electrospinning Methods 0.000 title claims abstract description 14
- 239000002114 nanocomposite Substances 0.000 title claims abstract description 14
- 238000009987 spinning Methods 0.000 claims abstract description 119
- 238000005507 spraying Methods 0.000 claims abstract description 89
- 239000007788 liquid Substances 0.000 claims abstract description 51
- 239000003658 microfiber Substances 0.000 claims abstract description 24
- 239000002121 nanofiber Substances 0.000 claims abstract description 24
- 230000033228 biological regulation Effects 0.000 claims abstract description 16
- 239000002131 composite material Substances 0.000 claims abstract description 14
- 239000002105 nanoparticle Substances 0.000 claims abstract description 9
- 239000011859 microparticle Substances 0.000 claims abstract description 8
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 38
- 239000002033 PVDF binder Substances 0.000 claims description 24
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 24
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-dimethylformamide Substances CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 19
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 15
- 230000004888 barrier function Effects 0.000 claims description 12
- 239000002904 solvent Substances 0.000 claims description 10
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 claims description 8
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 229920000642 polymer Polymers 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 229910001873 dinitrogen Inorganic materials 0.000 claims 1
- 229920000592 inorganic polymer Polymers 0.000 claims 1
- 239000011238 particulate composite Substances 0.000 description 15
- 238000005516 engineering process Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 238000002360 preparation method Methods 0.000 description 8
- 239000002245 particle Substances 0.000 description 7
- 238000010041 electrostatic spinning Methods 0.000 description 6
- 230000005684 electric field Effects 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000011246 composite particle Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001962 electrophoresis Methods 0.000 description 1
- 238000009503 electrostatic coating Methods 0.000 description 1
- 238000007590 electrostatic spraying Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
- D01D5/30—Conjugate filaments; Spinnerette packs therefor
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/0007—Electro-spinning
- D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
- D01D5/0069—Electro-spinning characterised by the electro-spinning apparatus characterised by the spinning section, e.g. capillary tube, protrusion or pin
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/0007—Electro-spinning
- D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
- D01D5/0076—Electro-spinning characterised by the electro-spinning apparatus characterised by the collecting device, e.g. drum, wheel, endless belt, plate or grid
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Nonwoven Fabrics (AREA)
Abstract
Coaxial the invention discloses a kind of micro-/ nano composite sprays electrospinning method for preparing altogether, and this method configures certain density spray coating liquor and spinning solution as needed first, and is added separately to spray in liquid storage pump and spinning liquid storage pump accordingly；Spraying liquid storage pump and spinning liquid storage pump are connected with the core shower nozzle of Coaxial nozzle with shell shower nozzle respectively, the internal diameter ratio of regulation core shower nozzle and shell shower nozzle, to ensure the coaxial realization that spray is spun altogether；The other factors such as voltage, reception distance needed for adjusting means, to ensure the even distribution of the prepared micro/nano-fibre of the coaxial spinning of spray altogether and micro-/ nano particle.It the method achieve by the way that coaxially spray spinning equipment prepares micro-/ nano particle and micro/nano-fibre composite altogether.
Description
Technical field
It is total to the present invention relates to micro-/ nano field of composite material preparation, more particularly to a kind of the coaxial of micro-/ nano composite
Spray electrospinning method for preparing.
Background technology
Electrostatic spinning technique produces " Taylor circles under synergy of the polymer drop in electric field force and surface tension
Cone ", and then jet is produced, into receiver board running, drop enters line splitting and stretching, and solvent is volatilized, final fine
Dimension is deposited on receiver board.Traditional single shaft electrostatic spinning technique can only once prepare a kind of fibrous material.
Electrostatic spraying is the physical phenomenon according to electrophoresis, the polymer drop being atomized is taken negative electricity in high voltage electric field
Lotus, and crushed in the presence of electric field force, surface tension, gravity etc., and then after division, discrete jet is directionally formed,
Flow to positively charged receiving platform and deposited thereon.Traditional single shaft spraying technology can only once prepare a kind of granular materials.
The technology of composite fibre is prepared by coaxial electrostatic spinning it has been reported that coaxial electrospray is multiple to prepare simultaneously
The technology for closing particle also has been reported that.But coaxial electrostatic spinning can only prepare composite fibre, and coaxial electrospray can only be prepared again
Particle is closed, two kinds of technologies can not prepare micro/nano-fibre and particulate composite, and not utilize coaxial technology system at present
Standby micro/nano-fibre and the relevant report of particulate composite method.
The content of the invention
Based on the problems of prior art, it is an object of the invention to provide a kind of the coaxial of micro-/ nano composite
Electrospinning method for preparing is sprayed altogether, can be so that coaxially spray spinning mode prepares micro/nano-fibre and particulate composite altogether.
The purpose of the present invention is achieved through the following technical solutions：
Embodiment of the present invention provides a kind of the coaxial of micro-/ nano composite and sprays electrospinning method for preparing altogether, including：
Step one：Configuration can be dissolved in the Polymer Solution of solvent as spinning solution；Configuration can be dissolved in the inorganic high score of solvent
Sub- solution is used as spray coating liquor；
Step 2：The spray coating liquor is added in spraying liquid storage pump, the spinning solution is added in spinning liquid storage pump, will
Spraying liquid storage pump and spinning liquid storage pump are connected with the coaxial spinning equipment of spray altogether；
Step 3：The reception distance of the regulation coaxial spinning equipment of spray altogether and the spinning shell shower nozzle and spraying core of Coaxial nozzle
The internal diameter ratio of shower nozzle, when drop is formed below in spraying core shower nozzle, while the spinning solution of spinning shell shower nozzle wraps spraying core shower nozzle
Outer wall when, open high voltage power supply, adjust voltage, make spray coating liquor and spinning solution by setting flow velocity simultaneously to reception barrier film carry out
Equally distributed micro-/ nano particle and micro/nano-fibre composite are prepared in spraying and spinning.
As seen from the above technical solution provided by the invention, the coaxial spinning of spray altogether provided in an embodiment of the present invention is standby multiple
The method of condensation material, its advantage is：
This method by using spinning equipment is coaxially sprayed altogether, realize with coaxially altogether spray spinning mode prepare micro/nano-fibre with
Micro-/ nano particulate composite, the micro/nano-fibre and micro-/ nano particulate composite of preparation have with base material bonding firmly
With the advantage of high-specific surface area, can be while to base while have the associativity of more preferable uniformly dispersed and fiber and particle
Material provides the raising effect of enhancing effect and specific surface area.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, being used required in being described below to embodiment
Accompanying drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for this
For the those of ordinary skill in field, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is the coaxial schematic device for spraying electrospinning method for preparing altogether provided in an embodiment of the present invention；
Fig. 2 is that the SEM for the coaxial common standby composite process of spray spinning that the embodiment of the present invention 1 is provided schemes；
Fig. 3 is that the SEM for the coaxial common standby composite process of spray spinning that the embodiment of the present invention 2 is provided schemes；
Fig. 4 is that the SEM for the coaxial common standby composite process of spray spinning that the embodiment of the present invention 3 is provided schemes.
Embodiment
With reference to the particular content of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely retouched
State, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on the present invention
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made,
Belong to protection scope of the present invention.
The embodiment of the present invention provides a kind of the coaxial of micro-/ nano composite (i.e. micron order or nanocomposite)
Electrospinning method for preparing is sprayed altogether, can be prepared micro/nano-fibre and micro-/ nano particulate composite, be comprised the following steps：
Step one：Configuration can be dissolved in the Polymer Solution of solvent as spinning solution；Configuration can be dissolved in the inorganic high score of solvent
Sub- solution is used as spray coating liquor；
Step 2：The spray coating liquor is added in spraying liquid storage pump, the spinning solution is added in spinning liquid storage pump, will
Spraying liquid storage pump and spinning liquid storage pump are connected with the coaxial spinning equipment of spray altogether；
Step 3：The reception distance of the regulation coaxial spinning equipment of spray altogether and the spinning shell shower nozzle and spraying core of Coaxial nozzle
The internal diameter ratio of shower nozzle, when drop is formed below in spraying core shower nozzle, while the spinning solution of spinning shell shower nozzle wraps spraying core shower nozzle
Outer wall when, open high voltage power supply, adjust voltage, make spray coating liquor and spinning solution by setting flow velocity simultaneously to reception barrier film carry out
Equally distributed micro-/ nano particle and micro/nano-fibre composite are prepared in spraying and spinning.
In above-mentioned preparation method, spray coating liquor is formed by PVDF, DMF and acetone soln configuration；
The spinning solution is formed by PVDF, DMF and acetone soln configuration.
In above-mentioned preparation method, the PVDF mass fractions of spray coating liquor are DMF in 0.1%~100%, the spray coating liquor：Acetone
Mass ratio be 3：2；
The PVDF mass fractions of the spinning solution are DMF in 0.1%~100%, the spinning solution：The mass ratio of acetone is 3：
2。
As shown in figure 1, in above-mentioned preparation method, coaxially spray spinning equipment includes altogether：
Support 1, spinning liquid storage pump 2, spinning shell shower nozzle 3, spraying liquid storage pump 4, spraying core shower nozzle 5, spinning nitrogen pressurization dress
Put 7, spraying nitrogen pressure device 8, receiving platform 6 and high voltage power supply 9；Wherein,
The spinning liquid storage pump is set on the bracket, and the spinning liquid storage pump is connected with the spinning nitrogen pressure device,
The liquid outlet of the spinning liquid storage pump connects the spinning shell shower nozzle；
The spraying liquid storage pump is located in the spinning liquid storage pump, the spraying liquid storage pump and the spraying nitrogen pressure device
Connection, the liquid outlet connection spraying core shower nozzle of the spraying liquid storage pump, the spraying core shower nozzle is located at the spinning shell shower nozzle
Interior formation Coaxial nozzle, the Coaxial nozzle is electrically connected with the high voltage power supply negative pole；
Receiving platform, is located at below the Coaxial nozzle, is electrically connected with the high-voltage power cathode.
In above-mentioned preparation method, the shower nozzle that spinning shell shower nozzle and spraying core shower nozzle are made of conductive and heat-conductive metal；
The internal diameter of the spinning shell shower nozzle is 0.1mm~100mm；
The internal diameter for spraying core shower nozzle is 0.1mm~100mm.
In above-mentioned preparation method step 3, the internal diameter adjustable range of the spinning shell shower nozzle of Coaxial nozzle for 0.1mm~
100mm, the internal diameter adjustable range of spraying core shower nozzle is 0.1mm~100mm；
Receive distance adjustable range be：5~30cm；
The adjustable range of supply voltage is：0.1kV~50kV；
The flow rates for controlling spray coating liquor and spinning solution are 0.1~1000ml/h；
The barrier film of reception uses UHMWPE barrier films.
The coaxial spinning method of spray altogether of the invention is compared with traditional coaxial electrostatic spinning technology prepares composite：This is coaxially common
Spinning method can prepare two kinds of micro/nano-fibre composites being evenly distributed, and coaxially spray spinning method can prepare what is be evenly distributed altogether
Micro/nano-fibre and particulate composite.Coaxial spray spinning method altogether of the invention prepares multiple with traditional coaxial electrospray technology
Condensation material is compared：Coaxially spraying method can prepare two kinds of micro-/ nano particulate composites being evenly distributed altogether for this, and coaxial spray altogether is spun
Method can prepare the micro/nano-fibre and particulate composite being evenly distributed.
The embodiment of the present invention is specifically described in further detail below.
It is provided in an embodiment of the present invention a kind of by the way that coaxially spray spinning, for the method for composite, is comprised the following steps that altogether：
Step one：Configuration can be dissolved in all Polymer Solutions of solvent, by adjusting the concentration of above-mentioned solution, make it can
To be used as spinning solution；Configuration can be dissolved in the inorganic and high molecular solution of solvent, by adjusting its concentration, make it
For electrostatic masking liquid.The electrostatic spinning liquid and electrostatic coating liquid concentration configured is respectively 0.1%~100%；
Step 2：By above-mentioned spray coating liquor and spinning solution be added separately to spraying liquid storage pump and spinning liquid storage pump in it is stand-by, and
It is installed in the coaxial spinning equipment of spray altogether；
Step 3：The spinning shell shower nozzle internal diameter of the Coaxial nozzle of the coaxial spinning equipment of spray altogether is adjusted between 0.1mm~100mm
The coaxial reception distance for spraying spinning equipment altogether is adjusted with spraying core shower nozzle internal diameter, and in the range of 5~30cm, when spraying core spray
Droplet is formed below in head, while when the spinning solution of spinning shell shower nozzle wraps the outer wall of spraying core shower nozzle, high voltage power supply is opened,
Regulation voltage range is 0.1kV~50kV, applies 0.01MPa~20MPa pressure to spraying liquid storage pump and spinning liquid storage pump respectively
The speed of power, regulation spraying and spinning is in 0.1~1000ml/h, and preparing has micro-/ nano particle equally distributed to a certain degree
With micro/nano-fibre composite.
Raw material used in the embodiment of the present invention：DMF (Beijing Chemical Plant), PVDF (mean molecule quantity 534000, A Faai
Sha Chemical Co., Ltd.), UHMWPE barrier films (golden power new energy), acetone (Beijing Chemical Plant).
Be respectively configured PVDF mass fractions be 3% and 15% PVDF/DMF/ acetone solns as spray coating liquor and spinning solution,
DMF in PVDF solution:Acetone=3：2；Above-mentioned solution is added separately to corresponding spraying with spinning liquid storage pump, passing through Fig. 1
Shown coaxially sprays spinning equipment altogether, and the shell shower nozzle internal diameter of regulation Coaxial nozzle is 1.2mm, and core shower nozzle internal diameter is 0.7mm, and regulation connects
Receive distance and supply voltage, the flow velocity of control spray coating liquor and spinning solution is respectively 0.6ml/h and 1.3ml/h, using UHMWPE every
Film spins prepared micro/nano-fibre to coaxial spray altogether and micro-/ nano particulate composite is received.
Embodiment 1：
Be respectively configured PVDF mass fractions be 3% and 15% PVDF/DMF/ acetone solns as spray coating liquor and spinning solution,
DMF in PVDF solution:Acetone=3：2；Above-mentioned solution is added separately in corresponding spraying and spinning liquid storage pump, passes through Fig. 1
Shown coaxially sprays spinning equipment altogether, and the shell shower nozzle internal diameter of regulation Coaxial nozzle is 1.2mm, and core shower nozzle internal diameter is 0.7mm, and regulation connects
It is 15cm and supply voltage is 17kV to receive distance, and the flow velocity of control spray coating liquor and spinning solution is respectively 0.6ml/h and 1.3ml/h,
Prepared micro/nano-fibre is spun to coaxial spray altogether using UHMWPE barrier films and micro-/ nano particulate composite is received.From figure
As can be seen that now due to brownout in 2, electric field force be insufficient to allow jet cleave into it is micro- in silk, prepared composite/
Nano particle is more, and prepared micro/nano-fibre is very little, so voltage is not suitable for the coaxial progress that spray is spun altogether.
Embodiment 2：
Be respectively configured PVDF mass fractions be 3% and 15% PVDF/DMF/ acetone solns as spray coating liquor and spinning solution,
DMF in PVDF solution:Acetone=3：2.Above-mentioned solution is added separately in corresponding spraying and spinning liquid storage pump, passes through Fig. 1
Shown coaxially sprays spinning equipment altogether, and the shell shower nozzle internal diameter of regulation Coaxial nozzle is 1.2mm, and core shower nozzle internal diameter is 0.7mm, and regulation connects
Receipts distance is 7cm and supply voltage is 23kV, and the flow velocity of control spray coating liquor and spinning solution is respectively 0.6ml/h and 1.3ml/h, is made
Prepared micro/nano-fibre is spun to coaxial spray altogether with UHMWPE barrier films and micro-/ nano particulate composite is received.Now by
In receiving, distance is too near, and the solvent in spray coating liquor institute sprayed particle can not volatilize in time during decline, finally in lithium electricity
Pond membrane surface formation aggregate, and the intact particle of shape can not be formed, so receiving distance is not suitable for what coaxial spray altogether was spun
Carry out.
Embodiment 3：
Be respectively configured PVDF mass fractions be 3% and 15% PVDF/DMF/ acetone solns as spray coating liquor and spinning solution,
DMF in PVDF solution:Acetone=3：2.Above-mentioned solution is added separately in corresponding spraying and spinning liquid storage pump, passes through Fig. 1
Shown coaxially sprays spinning equipment altogether, and the shell shower nozzle internal diameter of regulation Coaxial nozzle is 1.2mm, and core shower nozzle internal diameter is 0.7mm, and regulation connects
It is 15cm and supply voltage is 23kV to receive distance, and the flow velocity of control spray coating liquor and spinning solution is respectively 0.6ml/h and 1.3ml/h,
Prepared micro/nano-fibre is spun to coaxial spray altogether using UHMWPE barrier films and micro-/ nano particulate composite is received.Now
Stable spraying and spinning is formed, and as can be seen from Figure 3 micro/nano-fibre and particle are bonded together well.
Embodiment 4：
Be respectively configured PVDF mass fractions be 3% and 15% PVDF/DMF/ acetone solns as spray coating liquor and spinning solution,
DMF in PVDF solution:Acetone=3：2.Above-mentioned solution is added separately in corresponding spraying and spinning liquid storage pump, passes through Fig. 1
Shown coaxially sprays spinning equipment altogether, and the shell shower nozzle internal diameter of regulation Coaxial nozzle is 1.2mm, and core shower nozzle internal diameter is 0.4mm, and regulation connects
It is 15cm and supply voltage is 23kV to receive distance, and the flow velocity of control spray coating liquor and spinning solution is respectively 0.6ml/h and 1.3ml/h,
Prepared micro/nano-fibre is spun to coaxial spray altogether using UHMWPE barrier films and micro-/ nano particulate composite is received.From figure
As can be seen that now because spraying nozzle internal diameter is too small, easily causing spraying and being obstructed in 4, only minimal amount of micro-/ nano particle
It is produced out.
The preparation method of the present invention is by the way that coaxially spray spinning mode prepares micro/nano-fibre and micro-/ nano Particles dispersed material altogether
Material, prepared micro/nano-fibre and micro-/ nano particulate composite have the spy that firm and high-specific surface area is bonded with base material
Point, while have the associativity of more preferable uniformly dispersed and fiber and particle, base material can be provided simultaneously enhancing effect with
The raising effect of specific surface area.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art is in the technical scope of present disclosure, the change or replacement that can be readily occurred in,
It should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claims
Enclose and be defined.
Claims (6)
1. a kind of the coaxial of micro-/ nano composite sprays electrospinning method for preparing altogether, it is characterised in that including：
Step one：Configuration can be dissolved in the Polymer Solution of solvent as spinning solution；The inorganic polymer that configuration can be dissolved in solvent is molten
Liquid is used as spray coating liquor；
Step 2：The spray coating liquor is added in spraying liquid storage pump, the spinning solution is added in spinning liquid storage pump, will be sprayed
Liquid storage pump and spinning liquid storage pump are connected with the coaxial spinning equipment of spray altogether；
Step 3：The reception distance of the regulation coaxial spinning equipment of spray altogether and the spinning shell shower nozzle and spraying core shower nozzle of Coaxial nozzle
Internal diameter ratio, when drop is formed below in spraying core shower nozzle, while the spinning solution of spinning shell shower nozzle wraps the outer of spraying core shower nozzle
During wall, high voltage power supply is opened, voltage is adjusted, makes spray coating liquor and spinning solution by setting flow velocity while being sprayed to the barrier film of reception
Equally distributed micro-/ nano particle and micro/nano-fibre composite are prepared with spinning.
2. the coaxial of micro-/ nano composite according to claim 1 sprays electrospinning method for preparing altogether, it is characterised in that described
Spray coating liquor is formed by PVDF, DMF and acetone soln configuration；
The spinning solution is formed by PVDF, DMF and acetone soln configuration.
3. the coaxial of micro-/ nano composite according to claim 2 sprays electrospinning method for preparing altogether, it is characterised in that described
The PVDF mass fractions of spray coating liquor are DMF in 0.1%~100%, the spray coating liquor：The mass ratio of acetone is 3：2；
The PVDF mass fractions of the spinning solution are DMF in 0.1%~100%, the spinning solution：The mass ratio of acetone is 3：2.
4. the coaxial of micro-/ nano composite according to any one of claims 1 to 3 sprays electrospinning method for preparing altogether, its feature
It is, the coaxial spinning equipment of spray altogether includes：
Support, spinning liquid storage pump, spinning shell shower nozzle, spraying liquid storage pump, spraying core shower nozzle, spinning nitrogen pressure device, spraying nitrogen
Gas pressue device, receiving platform and high voltage power supply；Wherein,
The spinning liquid storage pump is set on the bracket, and the spinning liquid storage pump is connected with the spinning nitrogen pressure device, the spinning
The liquid outlet of silk liquid storage pump connects the spinning shell shower nozzle；
The spraying liquid storage pump is located in the spinning liquid storage pump, and the spraying liquid storage pump connects with the spraying nitrogen pressure device
Connect, the liquid outlet connection spraying core shower nozzle of the spraying liquid storage pump, the spraying core shower nozzle is located in the spinning shell shower nozzle
Coaxial nozzle is formed, the Coaxial nozzle is electrically connected with the high voltage power supply negative pole；
Receiving platform, is located at below the Coaxial nozzle, is electrically connected with the high-voltage power cathode.
5. the coaxial of micro-/ nano composite according to claims 1 to 3 sprays electrospinning method for preparing altogether, it is characterised in that institute
State the shower nozzle that spinning shell shower nozzle and spraying core shower nozzle are made of conductive and heat-conductive metal；
The internal diameter of the spinning shell shower nozzle is 0.1mm~100mm；
The internal diameter for spraying core shower nozzle is 0.1mm~100mm.
6. the coaxial of micro-/ nano composite according to claims 1 to 3 sprays electrospinning method for preparing altogether, it is characterised in that institute
State in method and step three, the internal diameter adjustable range of the spinning shell shower nozzle of Coaxial nozzle is 0.1mm~100mm, spraying core shower nozzle
Internal diameter adjustable range is 0.1mm~100mm；
Receive distance adjustable range be：5~30cm；
The adjustable range of supply voltage is：0.1kV~50kV；
The flow rates for controlling spray coating liquor and spinning solution are 0.1~1000ml/h；
The barrier film of reception uses UHMWPE barrier films.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710476104.3A CN107201561B (en) | 2017-06-21 | 2017-06-21 | Micro-/ nano composite material coaxially sprays electrospinning method for preparing altogether |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710476104.3A CN107201561B (en) | 2017-06-21 | 2017-06-21 | Micro-/ nano composite material coaxially sprays electrospinning method for preparing altogether |
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| CN107201561B CN107201561B (en) | 2019-03-29 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108878736A (en) * | 2018-06-12 | 2018-11-23 | 北京石油化工学院 | A kind of device and method that coaxial spray altogether spins standby lithium ion composite diaphragm |
| CN111359452A (en) * | 2020-03-18 | 2020-07-03 | 北京化工大学 | Structure-enhanced hydrotalcite-immobilized composite fiber membrane, and preparation method and application thereof |
| CN111690993A (en) * | 2020-06-24 | 2020-09-22 | 湖南工程学院 | Coaxial injection needle tube for electrostatic spinning |
| CN115275509A (en) * | 2021-04-30 | 2022-11-01 | 中国石油化工股份有限公司 | Fiber diaphragm and preparation method and application thereof |
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| WO2010090868A2 (en) * | 2009-01-21 | 2010-08-12 | The Florida International University Board Of Trustees | Needle-in-needle electrospinning spinneret |
| US7856989B2 (en) * | 2004-12-30 | 2010-12-28 | Philip Morris Usa Inc. | Electrostatically produced fast dissolving fibers |
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| CN106519854A (en) * | 2016-12-02 | 2017-03-22 | 济南大学 | Magnetic sterilizing heat-insulation coating and preparation method thereof |
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| CN102817105A (en) * | 2012-08-24 | 2012-12-12 | 上海交通大学 | Preparation method of core-shell structured synthetic polymer-natural polymer composite fiber |
| CN105126770A (en) * | 2015-07-10 | 2015-12-09 | 西南科技大学 | Preparation method of pectin core-shell-structured microsphere adsorption material |
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| CN106519854A (en) * | 2016-12-02 | 2017-03-22 | 济南大学 | Magnetic sterilizing heat-insulation coating and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108878736A (en) * | 2018-06-12 | 2018-11-23 | 北京石油化工学院 | A kind of device and method that coaxial spray altogether spins standby lithium ion composite diaphragm |
| CN111359452A (en) * | 2020-03-18 | 2020-07-03 | 北京化工大学 | Structure-enhanced hydrotalcite-immobilized composite fiber membrane, and preparation method and application thereof |
| CN111690993A (en) * | 2020-06-24 | 2020-09-22 | 湖南工程学院 | Coaxial injection needle tube for electrostatic spinning |
| CN115275509A (en) * | 2021-04-30 | 2022-11-01 | 中国石油化工股份有限公司 | Fiber diaphragm and preparation method and application thereof |
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