CN104278345B - A kind of method preparing skin-core structure biconstituent filaments - Google Patents
A kind of method preparing skin-core structure biconstituent filaments Download PDFInfo
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- CN104278345B CN104278345B CN201410502491.XA CN201410502491A CN104278345B CN 104278345 B CN104278345 B CN 104278345B CN 201410502491 A CN201410502491 A CN 201410502491A CN 104278345 B CN104278345 B CN 104278345B
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- Prior art keywords
- tinsel
- sandwich layer
- core structure
- syringe
- skin
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- 229920000642 polymer Polymers 0.000 claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 238000010041 electrostatic spinning Methods 0.000 claims abstract description 12
- 238000010924 continuous production Methods 0.000 claims abstract description 4
- 238000004804 winding Methods 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 238000009987 spinning Methods 0.000 abstract description 25
- 230000003068 static Effects 0.000 abstract description 10
- 238000007712 rapid solidification Methods 0.000 abstract description 4
- 238000006555 catalytic reaction Methods 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 239000003814 drug Substances 0.000 abstract description 2
- 229940079593 drugs Drugs 0.000 abstract description 2
- 238000001914 filtration Methods 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 15
- 239000002121 nanofiber Substances 0.000 description 12
- 238000001990 intravenous administration Methods 0.000 description 7
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 4
- 238000001523 electrospinning Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 239000004809 Teflon Substances 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- HNPPKZRZKDKXDO-UHFFFAOYSA-N N,N-dimethylformamide;propan-2-one Chemical compound CC(C)=O.CN(C)C=O HNPPKZRZKDKXDO-UHFFFAOYSA-N 0.000 description 1
- 229920000520 Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) Polymers 0.000 description 1
- 210000003491 Skin Anatomy 0.000 description 1
- HFQOLOYVZLYECE-CGXUPHRESA-N [(2R)-4-oxo-4-[(3R)-1-oxo-1-[(2R)-4-oxo-4-[(3R)-1-oxopentan-3-yl]oxybutan-2-yl]oxypentan-3-yl]oxybutan-2-yl] (3R)-3-[(3R)-3-hydroxybutanoyl]oxypentanoate Chemical compound O=CC[C@@H](CC)OC(=O)C[C@@H](C)OC(=O)C[C@@H](CC)OC(=O)C[C@@H](C)OC(=O)C[C@@H](CC)OC(=O)C[C@@H](C)O HFQOLOYVZLYECE-CGXUPHRESA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001054 cortical Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
Abstract
The invention discloses a kind of electrostatic spinning device preparing skin-core structure biconstituent filaments and the method using this device, syringe draws polymer solution；Pump is advanced to be released from syringe by polymer solution, by extruding from syringe needle end after conduit；The polymer solution being extruded is formed jet, on directive tinsel sandwich layer by the electrostatic force of the voltage generator being connected with syringe needle；Tinsel sandwich layer has the rotation of certain speed so that jet is uniformly coated on tinsel core layer surface；The roller coiler device that tinsel sandwich layer is had certain rotating speed by its end winds, it is achieved the continuous production of skin-core structure biconstituent filaments.Present configuration is simple and convenient to operate, by receive device change into one can the tinsel of rotation, prevent spinning liquid rapid solidification so that Static Spinning jet is uniformly coated on tinsel core layer surface, have good application prospect at aspects such as filtration, catalysis, energy conversion, drug loadings.
Description
Technical field
The present invention relates to a kind of electrostatic spinning device preparing skin-core structure biconstituent filaments and method, belong to and prepare polymer nanofiber technical field.
Background technology
Method of electrostatic spinning is the common methods preparing polymer nanofiber, has equipment simple, it is easy to operation and the advantage such as gained fiber is stable.General electrostatic spinning device is polymer solution or melt to be extruded from thinner needle tubing with certain speed, electrostatic force makes spinning liquid form taylor cone, fiber penetrates from taylor cone top, and in jet, solvent volatilizees in flight course, thus receives at negative pole and collect nanofiber on pole plate.
Generally, the pole plate that receives of negative pole is the metallic plate being perpendicular to jet, there is the roller of certain rotating speed, or Liquid acquisition pole, it is longer that the most traditional Static Spinning typically sets receiving range, so that spinning liquid has time enough to solidify, so will result in Static Spinning jet and there is unstable disturbance, make the nanofiber of final gained with unordered or have the nonwoven felt form of certain orientation and exist, greatly limit the application of nanofiber.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of simple in construction, easy to operate, prevent the electrostatic spinning device preparing skin-core structure biconstituent filaments and the method for spinning liquid rapid solidification, solve traditional Static Spinning setting receiving range longer, and the pole plate that receives of negative pole is the metallic plate being perpendicular to jet, the problem causing spinning liquid rapid solidification.
In order to solve above-mentioned technical problem, the technical scheme is that and provide a kind of electrostatic spinning device preparing skin-core structure biconstituent filaments, it is characterized in that, including advancing pump, the movable end on pump is advanced to be connected with the compression end of syringe, the port of export of syringe is connected with one end of syringe needle by conduit, the interlude of syringe needle is connected with the positive pole of voltage generator, the negative pole of voltage generator is connected with roller coiler device by tinsel sandwich layer, the outer sheath of tinsel sandwich layer is provided with cortex, one end ground connection that tinsel sandwich layer is connected with the negative pole of voltage generator.
A kind of method using electrostatic spinning device to prepare skin-core structure biconstituent filaments, it is characterised in that comprise the following steps:
Step 1: syringe draws polymer solution；
Step 2: advance pump to be released from syringe by polymer solution, by extruding from syringe needle end after conduit；
Step 3: the polymer solution being extruded is formed jet, on directive tinsel sandwich layer by the electrostatic force of the voltage generator being connected with syringe needle；
Step 4: tinsel sandwich layer has the rotation of certain speed so that jet is uniformly coated on tinsel core layer surface；
Step 5: the roller coiler device that tinsel sandwich layer is had certain rotating speed by its end winds, it is achieved the continuous production of skin-core structure biconstituent filaments.
Preferably, described propelling pump is speed adjustable propelling pump, and its adjustable-speed scope is 0.1～5ml/h.
Preferably, the liquid quality fraction of described polymer solution is 6～20%.
Preferably, described tinsel sandwich layer is diameter Homogeneous Circular tinsel between 0.05～1mm.
Preferably, the rotational velocity of described tinsel sandwich layer is 10～1000 r/min.
Preferably, the winding speed of described roller coiler device is 1～1000m/min.
Preferably, described voltage generator can produce the electrostatic pressure of 0～50kV.
Preferably, described syringe needle end is between 5～300mm to the distance of tinsel sandwich layer.
Present configuration is simple and convenient to operate, by changing the reception device of negative pole receiving terminal, by receive device change into one can the tinsel of rotation, again by other parameters during adjustment Static Spinning, prepare a kind of with tinsel as sandwich layer, skin-core structure biconstituent filaments with polymer nanofiber as cortex, prevent spinning liquid rapid solidification, make Static Spinning jet be uniformly coated on tinsel core layer surface, have good application prospect at aspects such as filtration, catalysis, energy conversion, drug loadings.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of electrostatic spinning device preparing skin-core structure biconstituent filaments.
Wherein: 1 for advancing pump, and 2 is syringe, and 3 is conduit, and 4 is syringe needle, and 5 is voltage generator, and 6 is cortex, and 7 is tinsel sandwich layer, and 8 is roller coiler device.
Detailed description of the invention
For making the present invention become apparent, hereby with preferred embodiment, and accompanying drawing is coordinated to be described in detail below.
A kind of electrostatic spinning device preparing skin-core structure biconstituent filaments, as it is shown in figure 1, comprising: propulsion system, reception system and voltage generator 5.Three mutually coordinated cooperations of system, complete the preparation of the skin-core structure biconstituent filaments of different shape.Propulsion system includes advancing pump 1, the movable end on pump 1 is advanced to be connected with the compression end of syringe 2, the port of export of syringe 2 is connected with one end of syringe needle 4 by conduit 3, reception system includes tinsel sandwich layer 7, one end of tinsel sandwich layer 7 is connected with roller coiler device 8, the outside of tinsel sandwich layer 7 is cased with cortex 6, and the interlude of syringe needle 4 is connected with the positive pole of voltage generator 5, the other end ground connection of tinsel sandwich layer 7 and being connected with the negative pole of voltage generator 5.Conduit 3 is teflon catheter, and cortex 6 is polymer nanofiber cortex.
Skin-core structure biconstituent filaments can be prepared by this electrostatic spinning device, and use near-field electrostatic to spin or the realization of routine intravenous electrospinning, as long as the constant speed that propulsion system is responsible for spinning liquid (i.e. polymer solution) pushes.
First specification is that the syringe 2 of 5ml draws polymer solution (liquid quality fraction is 6～20%), by a speed adjustable propelling pump 1 with certain speed (0.01～5ml/h) by polymer solution extruding-injection device 1 (fltting speed that near-field electrostatic spins typically is less than routine intravenous electrospinning), through teflon catheter, finally extrude from syringe needle 4 end；The voltage (near-field electrostatic spins required voltage and is generally less than routine intravenous electrospinning) of the 0～50kV of voltage generator 5 generation, voltage generator 5 both positive and negative polarity is connected with the tinsel sandwich layer 7 of the system of reception respectively at the distal tip 4 of propulsion system, syringe needle 4 end is that between 5～300mm, (receiving range that near-field electrostatic spins is typically between 5～50mm to the distance of tinsel sandwich layer 7, routine intravenous electrospinning is then between 30～300mm), the spinning liquid being extruded is formed jet by electrostatic force, on the tinsel sandwich layer 7 in directive reception system；Receive the circular homogeneous metal silk of extremely diameter 0.05～1mm, it has the rotation (10～1000r/min) of certain speed simultaneously, jet is made to be uniformly coated on tinsel sandwich layer 7 surface, additionally, owing to tinsel sandwich layer 7 end has the coiler device (0.1～50m/min) of certain rotating speed to wind, it is achieved the continuous production of skin-core structure biconstituent filaments.
By controlling the parameters in device, it is achieved the preparation of different shape skin-core structure biconstituent filaments.
Embodiment 1
Spinning liquid is the Kynoar/DMF solution of 10%, use routine intravenous electric spinning equipment, by 5ml syringe draw solution, fltting speed is set as that 1ml/h, voltage generator output voltage are set to 15kV, and receiving range is set as 150mm, with the tinsel sandwich layer of a diameter of 0.4mm as receiving pole, tinsel sandwich layer rotational velocity is 60 r/min, and tinsel sandwich layer end winding speed is 6 m/min, carries out Static Spinning experiment.
Obtaining uniform skin-core structure biconstituent filaments, fibrocortex thickness is about 0.5mm, fits not tight between nanofiber, and Cortical fiber entirety is more fluffy.
Embodiment 2
Spinning liquid is the PHBV/ chloroform soln of 8%, use routine intravenous electric spinning equipment, by 5ml syringe draw solution, fltting speed is set as that 1.2 ml/h, voltage generator output voltage are set to 18kV, and receiving range is set as 150mm, with the tinsel sandwich layer of a diameter of 0.4mm as receiving pole, tinsel sandwich layer rotational velocity is 60 r/min, and tinsel sandwich layer end winding speed is 6 m/min, carries out Static Spinning experiment.
Obtaining uniform skin-core structure biconstituent filaments, fibrocortex thickness is about 0.3mm, fits tightr between nanofiber.
Embodiment 3
Spinning liquid is the Kynoar/DMF acetone combination solution of 6%, use routine intravenous electric spinning equipment, by 5ml syringe draw solution, fltting speed is set as that 1 ml/h, voltage generator output voltage are set to 15kV, and receiving range is set as 150mm, with the tinsel sandwich layer of a diameter of 0.4mm as receiving pole, tinsel sandwich layer rotational velocity is 60 r/min, and tinsel sandwich layer end winding speed is 6 m/min, carries out Static Spinning experiment.
Obtaining uniform skin-core structure biconstituent filaments, fibrocortex thickness is about 0.1mm, fits relatively tight between nanofiber, and is formed and have the nanofiber of bead structure and mutually tangle.
Embodiment 4
Spinning liquid is the Kynoar/DMF solution of 10%, use near-field electrostatic spinning equipment, by 5ml syringe draw solution, fltting speed is set as that 0.1 ml/h, voltage generator output voltage are set to 2kV, and receiving range is set as 10mm, with the tinsel sandwich layer of a diameter of 0.4mm as receiving pole, tinsel sandwich layer rotational velocity is 60 r/min, and tinsel sandwich layer end winding speed is 3 m/min, carries out Static Spinning experiment.
Obtaining uniform skin-core structure biconstituent filaments, skin thickness is about 0.05mm, and cortex does not observes obvious nanofiber, is primarily due to jet and does not solidifies and be i.e. mapped on tinsel sandwich layer so that be inter-adhesive between fiber.
Claims (8)
1. the method preparing skin-core structure biconstituent filaments, uses a kind of skin-core structure biconstituent filaments prepared
Electrostatic spinning device, including advancing pump (1), advances the compression end of the movable end on pump (1) and syringe (2)
Connecting, the port of export of syringe (2) is connected with one end of syringe needle (4) by conduit (3), syringe needle (4)
Interlude be connected with the positive pole of voltage generator (5), the negative pole of voltage generator (5) passes through wire core
Layer (7) is connected with roller coiler device (8), and the outer sheath of tinsel sandwich layer (7) is provided with cortex (6),
One end ground connection that tinsel sandwich layer (7) is connected with the negative pole of voltage generator (5), it is characterised in that include
Following steps:
Step 1: syringe (2) draws polymer solution；
Step 2: advance pump (1) to be released from syringe (2) by polymer solution, by conduit (3)
After from syringe needle (4) end extrude；
Step 3: the polymer solution being extruded is by the electrostatic of the voltage generator (5) being connected with syringe needle (4)
Power effect forms jet, on directive tinsel sandwich layer (7)；
Step 4: tinsel sandwich layer (7) has the rotation of certain speed so that jet is uniformly coated on gold
Belong to silk sandwich layer (7) surface；
Step 5: tinsel sandwich layer (7) is had roller coiler device (8) winding of certain rotating speed by its end,
Realize the continuous production of skin-core structure biconstituent filaments.
A kind of method preparing skin-core structure biconstituent filaments, it is characterised in that institute
The propelling pump (1) stated is speed adjustable propelling pump, and its adjustable-speed scope is 0.1～5ml/h.
A kind of method preparing skin-core structure biconstituent filaments, it is characterised in that institute
The liquid quality fraction of the polymer solution stated is 6～20%.
A kind of method preparing skin-core structure biconstituent filaments, it is characterised in that institute
The tinsel sandwich layer (7) stated is diameter Homogeneous Circular tinsel between 0.05～1mm.
A kind of method preparing skin-core structure biconstituent filaments, it is characterised in that institute
The rotational velocity of the tinsel sandwich layer (7) stated is 10～1000r/min.
A kind of method preparing skin-core structure biconstituent filaments, it is characterised in that institute
The winding speed of the roller coiler device (8) stated is 1～1000m/min.
A kind of method preparing skin-core structure biconstituent filaments, it is characterised in that institute
The voltage generator (5) stated can produce the electrostatic pressure of 0～50kV.
A kind of method preparing skin-core structure biconstituent filaments, it is characterised in that institute
Syringe needle (4) end stated is between 5～300mm to the distance of tinsel sandwich layer (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410502491.XA CN104278345B (en) | 2014-09-26 | A kind of method preparing skin-core structure biconstituent filaments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410502491.XA CN104278345B (en) | 2014-09-26 | A kind of method preparing skin-core structure biconstituent filaments |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104278345A CN104278345A (en) | 2015-01-14 |
| CN104278345B true CN104278345B (en) | 2017-01-04 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6106913A (en) * | 1997-10-10 | 2000-08-22 | Quantum Group, Inc | Fibrous structures containing nanofibrils and other textile fibers |
| CN101033563A (en) * | 2007-03-30 | 2007-09-12 | 东南大学 | High-strength composite nano fiber long yarn and manufacturing method thereof |
| CN103132194A (en) * | 2011-11-30 | 2013-06-05 | 杨恩龙 | Orientation electro-spinning nanometer fiber spinning method and device thereof |
| CN104032423A (en) * | 2014-06-20 | 2014-09-10 | 东华大学 | Nano-fiber covering yarn electrostatic spinning device and application thereof |
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6106913A (en) * | 1997-10-10 | 2000-08-22 | Quantum Group, Inc | Fibrous structures containing nanofibrils and other textile fibers |
| CN101033563A (en) * | 2007-03-30 | 2007-09-12 | 东南大学 | High-strength composite nano fiber long yarn and manufacturing method thereof |
| CN103132194A (en) * | 2011-11-30 | 2013-06-05 | 杨恩龙 | Orientation electro-spinning nanometer fiber spinning method and device thereof |
| CN104032423A (en) * | 2014-06-20 | 2014-09-10 | 东华大学 | Nano-fiber covering yarn electrostatic spinning device and application thereof |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Granted publication date: 20170104 Termination date: 20190926 |