CN211947314U - Green high-strength melt jet spinning nanofiber preparation device - Google Patents
Green high-strength melt jet spinning nanofiber preparation device Download PDFInfo
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- CN211947314U CN211947314U CN202020346318.6U CN202020346318U CN211947314U CN 211947314 U CN211947314 U CN 211947314U CN 202020346318 U CN202020346318 U CN 202020346318U CN 211947314 U CN211947314 U CN 211947314U
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- 238000009987 spinning Methods 0.000 title claims abstract description 98
- 239000002121 nanofiber Substances 0.000 title claims abstract description 75
- 238000002360 preparation method Methods 0.000 title claims abstract description 41
- 239000000155 melt Substances 0.000 claims abstract description 24
- 239000007921 spray Substances 0.000 claims abstract description 9
- 238000005520 cutting process Methods 0.000 claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 17
- 238000005516 engineering process Methods 0.000 abstract description 12
- 239000002904 solvent Substances 0.000 abstract description 12
- 230000007547 defect Effects 0.000 abstract description 9
- 229920001169 thermoplastic Polymers 0.000 abstract description 5
- 231100000331 toxic Toxicity 0.000 abstract description 5
- 230000002588 toxic effect Effects 0.000 abstract description 5
- 229920000642 polymer Polymers 0.000 description 39
- 239000000289 melt material Substances 0.000 description 21
- 239000000835 fiber Substances 0.000 description 15
- 238000010438 heat treatment Methods 0.000 description 14
- 239000000203 mixture Substances 0.000 description 13
- 239000003638 chemical reducing agent Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 238000004804 winding Methods 0.000 description 8
- 238000009966 trimming Methods 0.000 description 7
- -1 polypropylene Polymers 0.000 description 6
- 150000003839 salts Chemical class 0.000 description 6
- 238000009826 distribution Methods 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 description 3
- 238000010041 electrostatic spinning Methods 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 description 3
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 2
- DTQVDTLACAAQTR-UHFFFAOYSA-N Trifluoroacetic acid Chemical compound OC(=O)C(F)(F)F DTQVDTLACAAQTR-UHFFFAOYSA-N 0.000 description 2
- 230000005686 electrostatic field Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229920000747 poly(lactic acid) Polymers 0.000 description 2
- 239000004626 polylactic acid Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000000518 rheometry Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- UXGNZZKBCMGWAZ-UHFFFAOYSA-N dimethylformamide dmf Chemical compound CN(C)C=O.CN(C)C=O UXGNZZKBCMGWAZ-UHFFFAOYSA-N 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
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- Artificial Filaments (AREA)
- Nonwoven Fabrics (AREA)
Abstract
The utility model discloses a green high strength melt jet spinning nanofiber preparation facilities, include: the device comprises a screw extruder, a metering pump, a spinning spray head assembly, a mesh belt receiver and an edge cutting winder, wherein the screw extruder is communicated with the metering pump, the metering pump is communicated with the spinning spray head assembly, the spinning spray head assembly corresponds to and is matched with the mesh belt receiver, and the edge cutting winder corresponds to and is matched with the mesh belt receiver to wind nano fibers into coils; the melt-jet nano-spinning technology is adopted, the thermoplastic polymer melt is processed to form the spinning nano-fiber, no toxic solvent is volatilized in the preparation process, the preparation process belongs to a green preparation process, the diameter of the prepared nano-fiber is uniformly distributed, the surface of the nano-fiber is dense and smooth, the hole defect is avoided, and the mechanical property is high; the melt jet nanofiber preparation device has high spinning efficiency and is suitable for industrial mass production.
Description
Technical Field
The utility model relates to a nano-material technical field, concretely relates to green high strength melt jet spinning nanofiber preparation facilities.
Background
The specific surface area of the nano-fiber is more than 100 times higher than that of the micron fiber, so that the nano-fiber has a very wide application scene in the aspects of energy, electronics, biomedicine, sanitary protection, catalyst loading, high-performance fabrics, future building materials and the like. Electrostatic spinning is a special fiber manufacturing process as a commonly used nanofiber preparation technology, and polymer solution or melt is subjected to jet spinning in a strong electric field. This way, polymer filaments of nanometer-scale diameter can be produced. But the production efficiency is low, and the method is not suitable for large-scale production; a high-voltage electrostatic field is needed, and a related matched protection device is needed in the using process to ensure the production safety; due to the application of electrostatic fields, there is a requirement for fiber receiving equipment that cannot deposit fibers onto any material surface.
The nanofiber is prepared by adopting a solution jet spinning technology, so that the nanofiber preparation efficiency can be effectively improved. But solute in the use solution needs to be dissolved in the solvent, the solvent comprises organic solvents such as chloroform, ethanol, dimethyl formamide DMF, trifluoroacetic acid mixture electrostatic spinning acid, dichloromethane and the like, the volatility is good, the rapid volatilization can be realized, the rapid fiber forming of jet flow is ensured, but the toxicity is certain, and the requirement on the production environment is high. Solvent volatilization causes only 1-30% of polymer to be solidified into fiber, and the production efficiency is low. The temperature and humidity of the production environment affect the viscosity of the solution and the solvent volatilization rate, and indirectly affect the fineness of the fibers, the surface pore characteristics and the spinnability of the fibers. The produced fiber has many holes due to solvent volatilization and poor mechanical strength.
The melt electrostatic spinning technology needs higher voltage due to poor melt dielectric property, is easy to cause corona phenomenon, and has higher requirements for production raw materials.
Therefore, the appearance of a green high-strength melt jet spinning nanofiber preparation device is urgently needed, a melt jet nano spinning technology is adopted, the thermoplastic polymer melt is processed to form the nanofiber, the polymer melt belongs to a high-molecular fluid thick system, no toxic solvent is volatilized in the preparation process, the preparation process belongs to a green preparation process, and the range of applicable polymer raw materials is wide; the influence of the environmental temperature and humidity on the spinning process is not obvious; the prepared nano-fibers have uniform diameter distribution, compact and smooth surfaces, no hole defects and high mechanical properties; the melt jet nanofiber preparation device has high spinning efficiency and is suitable for industrial mass production.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a green high strength melt-jet spinning nanofiber preparation facilities adopts the melt-jet nano spinning technique, forms the nanofiber through processing thermoplastic polymer melt, and the polymer melt belongs to the fluidic dense system of macromolecule, and the preparation process does not have toxic solvent to volatilize, belongs to green preparation process, and it is extensive to be suitable for polymer raw and other materials; the influence of the environmental temperature and humidity on the spinning process is not obvious; the prepared nano-fibers have uniform diameter distribution, dense and smooth fiber surfaces, no hole defects and high mechanical properties; the melt jet nanofiber preparation technology has high spinning efficiency and is suitable for industrial mass production.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
the preparation method of the green high-strength melt jet spinning nanofiber comprises the following preparation steps:
s1, adding ionic salt or a chain-reducing agent into the high-molecular polymer to obtain a mixture;
s2, adding the mixture into a screw extruder, and heating to obtain a polymer melt material;
s3, adding the polymer melt material into the spinning nozzle assembly through a metering pump by a set feed flow;
s4, carrying out melt airflow jet nano spinning to a mesh belt receiver through a spinning nozzle assembly;
and the S5 mesh belt receiver conveys the received nano fibers to a trimming winder for winding into a coil.
The utility model provides a green high strength melt jet spinning nanofiber preparation facilities adopts the melt jet nano spinning technique, forms nanofiber through processing thermoplastic polymer melt, and the polymer melt belongs to the fluidic dense system of polymer, and the preparation process does not have toxic solvent and volatilizes, belongs to green preparation process, and it is extensive to be suitable for polymer raw and other materials scope; the influence of the environmental temperature and humidity on the spinning process is not obvious; the prepared nano-fibers have uniform diameter distribution, compact and smooth surfaces, no hole defects and high mechanical properties; the melt jet nanofiber preparation technology has high spinning efficiency and is suitable for industrial mass production.
On the basis of the technical scheme, the following improvements can be made:
preferably, the high molecular polymer is one or more of polypropylene, polyethylene, polylactic acid, polyvinyl alcohol or polyethylene oxide.
Preferably, the weight percentage of the ionic salt is 0.5-2.5%, the weight percentage of the chain reducing agent is 0.5-2.5%, and the chain reducing agent is a rheology modifying chain reducing agent.
Preferably, the heating temperature of the screw extruder in the step S2 is 180-220 ℃, and the viscosity of the polymer melt material is 20-200 Pa.s.
Preferably, the feed rate set in step S3 is a single needle melt feed rate of 0.5-1.5 ml/h.
Preferably, the air pressure of the jet of the melt stream by the spinning nozzle assembly in the step S4 is 0.06-1MPa, the distance of the jet of the melt stream by the spinning nozzle assembly in the step S4 is 5-50cm, and the diameter of the nano-fiber is 100-600 nm.
As a preferred scheme, the green high-strength melt-jet spinning nanofiber preparing device comprises: the device comprises a screw extruder, a metering pump, a spinning spray head assembly, a mesh belt receiver and an edge cutting winder, wherein the screw extruder is communicated with the metering pump, the metering pump is communicated with the spinning spray head assembly, the spinning spray head assembly is corresponding to the mesh belt receiver and is matched with the mesh belt receiver, and the edge cutting winder is corresponding to the mesh belt receiver and is matched with the mesh belt receiver to wind nano fibers into coils.
Preferably, a melt filter is arranged between the screw extruder and the metering pump, and the melt filter is respectively communicated with the screw extruder and the metering pump.
Preferably, the method comprises the following steps: the spinning nozzle assembly comprises an air compressor and an air heater, wherein the air compressor is communicated with the air heater, and the air heater is communicated with the spinning nozzle assembly.
Preferably, the method comprises the following steps: and the air exhaust fan corresponds to the mesh belt receiver and is matched with the mesh belt receiver.
Drawings
FIG. 1 is a schematic diagram of an apparatus for preparing green high-strength melt-blown spinning nanofibers according to an embodiment of the present invention;
wherein: 1. the device comprises a screw extruder, 2 metering pumps, 3 spinning nozzle assemblies, 4 mesh belt receivers, 5 trimming and winding machines, 6 melt filters, 7 air compressors, 8 air heaters, 9 exhaust fans, 10 conveying rollers and 11 feed hoppers.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
In order to achieve the purpose of the present invention, as shown in fig. 1, the method for preparing green high-strength melt-jet-spun nanofibers in this embodiment includes the following steps:
s1, adding ionic salt or a chain-reducing agent into the high-molecular polymer to obtain a mixture;
s2, adding the mixture into a screw extruder, and heating to obtain a polymer melt material with viscosity and thermoplasticity;
s3, adding the polymer melt material into the spinning nozzle assembly through the set feeding flow rate of the polymer melt material by a metering pump;
s4, carrying out melt airflow jet nano spinning to a mesh belt receiver through a spinning nozzle assembly;
and the S5 mesh belt receiver conveys the received nano fibers to a trimming winder for winding into a coil.
The utility model provides a green high strength melt jet spinning nanofiber preparation facilities adopts the melt jet nano spinning technique, forms nanofiber through processing thermoplastic polymer melt, and the polymer melt belongs to the fluidic dense system of polymer, and the preparation process does not have toxic solvent and volatilizes, belongs to green preparation process, and it is extensive to be suitable for polymer raw and other materials scope; the influence of the environmental temperature and humidity on the spinning process is not obvious; the prepared nano-fibers have uniform diameter distribution, dense and smooth fiber surfaces, no hole defects and high mechanical properties; the melt jet nanofiber preparation technology has high spinning efficiency and is suitable for industrial mass production.
In some embodiments, the high molecular polymer is one or more of polypropylene, polyethylene, polylactic acid, polyvinyl alcohol, or polyethylene oxide.
In some embodiments, the ionic salt is present in an amount of 0.5 to 2.5% by weight, the chain reducer is present in an amount of 0.5 to 2.5% by weight, and the chain reducer is a rheology modifying chain reducer.
In some embodiments, the heating temperature of the screw extruder in step S2 is 180 ℃ to 220 ℃, and the viscosity of the polymer melt material is 20pa.s to 200 pa.s.
In some embodiments, the feed rate set in step S3 is a single needle melt feed rate of 0.5-1.5 ml/h.
In some embodiments, the air pressure of the jet of the melt stream by the spinning nozzle assembly in the step S4 is 0.06-1MPa, the distance of the jet of the melt stream by the spinning nozzle assembly in the step S4 is 5-50cm, and the diameter of the nano-fiber is 100-600 nm.
In some embodiments, a green high intensity melt jet spinning nanofiber manufacturing apparatus, comprises: screw extruder 1, measuring pump 2, spinning nozzle subassembly 3, guipure receiver 4 and side cut winder 5, screw extruder 1 with measuring pump 2 intercommunication, measuring pump 2 with spinning nozzle subassembly 3 intercommunication, spinning nozzle subassembly 3 with guipure receiver 4 is corresponding and mutually support, side cut winder 5 with guipure receiver 4 is corresponding and mutually support and convolute the lapping with nanofiber.
Adopt above-mentioned embodiment, its simple structure, convenient operation, screw extruder 1 with be linked together through dope pipeline and metering pump pipeline between the metering pump 2, metering pump 2 with be linked together through metering pump pipeline and dope pipeline between the spinning nozzle subassembly 3, guipure receiver 4 is used for receiving the spinning nozzle subassembly 3 and goes up melt air jet nanofiber, side cut winder 5 is used for convoluteing the lapping to the nanofiber that the preparation obtained.
In some embodiments, a melt filter 6 is disposed between the screw extruder 1 and the metering pump 2, and the melt filter 6 is respectively communicated with the screw extruder 1 and the metering pump 2.
Adopt above-mentioned embodiment, its simple structure, convenient operation, melt filter 6 respectively with be linked together through the spinning liquid pipeline between the screw extruder 1, melt filter 6 with be linked together through the spinning liquid pipeline and metering pump pipeline between the metering pump 2, be convenient for filter polymer melt material.
In some embodiments, the method comprises: the spinning nozzle assembly comprises an air compressor 7 and an air heater 8, wherein the air compressor 7 is communicated with the air heater 8, and the air heater 8 is communicated with the spinning nozzle assembly 3.
By adopting the embodiment, the structure is simple, the operation is convenient, the air compressor 7 is communicated with the air heater 8 through the heating pipeline, the air heater 8 is communicated with the spinning nozzle component 3 through the heating pipeline, and the air heater 8 can promote the solvent to be quickly volatilized when the spinning nozzle component is heated and operated, so that the polymer melt material can be drawn.
In some embodiments, the method comprises: and the exhaust fan 9 corresponds to and is matched with the mesh belt receiver 4.
By adopting the embodiment, the structure is simple, the operation is convenient, and when the exhaust fan 9 runs, the prepared nano fibers are conveniently cooled.
Adding ionic salt or a chain reducing agent into a high molecular polymer to obtain a mixture, adding the mixture into a screw extruder 1 through a feed hopper, heating to obtain a polymer melt material with viscosity and thermoplasticity, connecting the feed hopper 11 with the screw extruder 1, adding the polymer melt material into a spinning nozzle assembly 3 through a metering pump 2 at a set feed flow, carrying out melt airflow jet nano spinning through the spinning nozzle assembly 3 to a mesh belt receiver 4, and conveying the nano fibers to a trimming and winding machine 5 through a conveying roller 10 by the mesh belt receiver 4 to be wound into a coil; when the air heater 8 is used for heating, the rapid volatilization of the solvent can be promoted, and the drawing of the polymer melt material is facilitated; the mesh belt receiver 4 is used for receiving the melt airflow jet nano spinning on the spinning nozzle assembly; when the exhaust fan 9 operates, the prepared nano-fibers can be cooled to room temperature; when the conveying rollers 10 operate, the nano fibers cooled to room temperature are conveyed to the edge cutting and winding machine 5 through the conveying rollers 10 to be wound into rolls, the diameter of the obtained nano fibers is 100-600nm, the diameter distribution of the prepared nano fibers is uniform, the fiber surface is dense and smooth, and hole defects do not exist, at least more than five groups of conveying rollers 10 are arranged on the mesh belt receiver 4, the conveying rollers 10 are connected with the mesh belt receiver 4, the tensile strength of the nano fibers is 43.0-120 MPa, and the mechanical property is improved; the melt jet nanofiber preparation technology has high spinning efficiency and is suitable for industrial mass production.
The preparation method of the green high-strength melt jet spinning nanofiber 1 comprises the following preparation steps:
s1, adding 1% of Irgatec CR76 chain reducing agent into polypropylene to obtain a mixture;
s2, adding the mixture into a screw extruder, and heating to obtain a polymer melt material with viscosity and thermoplasticity, wherein the heating temperature is 200 ℃, and the viscosity of the polymer melt material is 110 Pa.s;
s3 adding the polymer melt material into the spinning nozzle assembly through a metering pump through a single-needle melt feeding flow of 1 ml/h;
s4, carrying out melt airflow jet nano spinning to a mesh belt receiver through a spinning nozzle assembly, wherein the airflow pressure of the spinning nozzle assembly for carrying out melt airflow jet is 0.53MPa, and the distance of the spinning nozzle assembly for carrying out melt airflow jet is 27 cm;
and (3) conveying the nano-fiber cooled to room temperature to a trimming and winding machine by an S5 mesh belt receiver to be wound into a roll, wherein the diameter of the prepared nano-fiber is 350 nm.
The diameter of the spinning nanofiber 1 prepared by the embodiment is uniformly distributed, the surface of the fiber is dense and smooth, the defect of holes does not exist, the tensile strength of the spinning nanofiber is 120MPa, and the mechanical property is improved; the melt jet nanofiber preparation technology has high spinning efficiency and is suitable for industrial mass production.
The preparation method of the green high-strength melt jet spinning nanofiber 2 comprises the following preparation steps:
s1, adding 0.5% ionic salt into polyethylene to obtain a mixture;
s2, adding the mixture into a screw extruder, heating to obtain a polymer melt material with viscosity and thermoplasticity, wherein the heating temperature is 180 ℃, and the viscosity of the polymer melt material is 20 Pa.s;
s3 adding the polymer melt material into the spinning nozzle assembly through a metering pump through a single-needle melt feed flow of 0.5 ml/h;
s4, carrying out melt airflow jet nano spinning to a mesh belt receiver through a spinning nozzle assembly, wherein the airflow pressure of the spinning nozzle assembly for carrying out melt airflow jet is 0.06MPa, and the distance of the spinning nozzle assembly for carrying out melt airflow jet is 5 cm;
and (3) conveying the nano-fiber cooled to room temperature to a trimming winder for winding into a coil by using an S5 mesh belt receiver, and preparing the prepared nano-fiber with the diameter of 100 nm.
The diameter of the spinning nanofiber 2 prepared by the embodiment is uniformly distributed, the surface of the fiber is dense and smooth, the defect of holes does not exist, the tensile strength of the nanofiber is 43.0MPa, and the mechanical property is improved; the melt jet nanofiber preparation technology has high spinning efficiency and is suitable for industrial mass production.
The preparation method of the green high-strength melt jet spinning nanofiber 3 comprises the following preparation steps:
s1 adding 2.5% of Irgatec CR76 into polyvinyl alcohol to obtain a mixture;
s2, adding the mixture into a screw extruder, and heating to obtain a polymer melt material with viscosity and thermoplasticity, wherein the heating temperature is 220 ℃, and the viscosity of the polymer melt material is 200 Pa.s;
s3 adding the polymer melt material into the spinning nozzle assembly through a metering pump through a single-needle melt feed flow of 1.5 ml/h;
s4, carrying out melt airflow jet nano spinning to a mesh belt receiver through a spinning nozzle assembly, wherein the airflow pressure of the spinning nozzle assembly for carrying out melt airflow jet is 1MPa, and the distance of the spinning nozzle assembly for carrying out melt airflow jet is 50 cm;
and (3) conveying the nano-fiber cooled to room temperature to a trimming winder for winding into a coil by using an S5 mesh belt receiver, and preparing the prepared nano-fiber with the diameter of 600 nm.
The diameter of the spinning nanofiber 3 prepared by the embodiment is uniformly distributed, the surface of the fiber is dense and smooth, the defect of holes does not exist, the tensile strength of the spinning nanofiber is 96.0MPa, and the mechanical property is improved; the melt jet nanofiber preparation technology has high spinning efficiency and is suitable for industrial mass production.
The above is only the preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many variations and modifications can be made without departing from the inventive concept, and these all fall into the protection scope of the present invention.
Claims (6)
1. Green high strength melt jet spinning nanofiber preparation facilities, its characterized in that includes: the device comprises a screw extruder, a metering pump, a spinning spray head assembly, a mesh belt receiver and an edge cutting winder, wherein the screw extruder is communicated with the metering pump, the metering pump is communicated with the spinning spray head assembly, the spinning spray head assembly is corresponding to the mesh belt receiver and is matched with the mesh belt receiver, and the edge cutting winder is corresponding to the mesh belt receiver and is matched with the mesh belt receiver to wind nano fibers into coils.
2. The apparatus for preparing green high-strength melt-blown spinning nanofibers according to claim 1, wherein a melt filter is disposed between the screw extruder and the metering pump, and the melt filter is respectively communicated with the screw extruder and the metering pump.
3. The apparatus for preparing green high-strength melt-jet-spun nanofibers according to claim 2, comprising: the spinning nozzle assembly comprises an air compressor and an air heater, wherein the air compressor is communicated with the air heater, and the air heater is communicated with the spinning nozzle assembly.
4. The apparatus for preparing green high-strength melt-jet-spun nanofibers according to claim 3, comprising: and the air exhaust fan corresponds to the mesh belt receiver and is matched with the mesh belt receiver.
5. The apparatus for preparing green high-strength melt-jet-spun nanofibers according to claim 4, comprising: the feed hopper is connected with the screw extruder.
6. The apparatus of claim 5, wherein the mesh belt receiver is provided with at least five groups of conveying rollers, and the conveying rollers are connected with the mesh belt receiver.
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| CN202020346318.6U CN211947314U (en) | 2020-03-18 | 2020-03-18 | Green high-strength melt jet spinning nanofiber preparation device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111254508A (en) * | 2020-03-18 | 2020-06-09 | 江苏科来材料科技有限公司 | Preparation method and preparation device of green high-strength melt jet spinning nanofiber |
| CN113893614A (en) * | 2021-11-15 | 2022-01-07 | 深圳市净万嘉环保科技有限公司 | Embedded composite material and preparation equipment and preparation method thereof |
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2020
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111254508A (en) * | 2020-03-18 | 2020-06-09 | 江苏科来材料科技有限公司 | Preparation method and preparation device of green high-strength melt jet spinning nanofiber |
| CN113893614A (en) * | 2021-11-15 | 2022-01-07 | 深圳市净万嘉环保科技有限公司 | Embedded composite material and preparation equipment and preparation method thereof |
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