CN203999954U - A kind of heating using microwave melt electrostatic spinning device - Google Patents
A kind of heating using microwave melt electrostatic spinning device Download PDFInfo
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- CN203999954U CN203999954U CN201420469526.XU CN201420469526U CN203999954U CN 203999954 U CN203999954 U CN 203999954U CN 201420469526 U CN201420469526 U CN 201420469526U CN 203999954 U CN203999954 U CN 203999954U
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- boost pump
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- shower nozzle
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Abstract
The utility model belongs to melt electrostatic spinning equipment technical field, relate to a kind of heating using microwave melt electrostatic spinning device, the leading flank of boost pump is provided with boost pump button, boost pump switch and electronic display, the upper end fixed installation of boost pump is shaped with barrel, one end of barrel is connected with propeller, the other end is connected with materail tube, and materail tube is arranged in microwave heating chamber; Materail tube is connected with melting shower nozzle through microwave heating chamber, and the leading flank of microwave heating chamber is provided with microwave frequency adjusting knob, heat time heating time setting knob and temperature control handle; The positive pole of high voltage source is connected with melting shower nozzle, and negative pole is connected with the vertical gathering-device of placing; Distance between melting shower nozzle and gathering-device is 10-20 centimetre; High voltage source is provided with high-voltage electric switch and voltage-regulation knob; It is simple in structure, easy to operate, uses safety, and cost is low, and spinning efficiency is high, and automaticity is high, and environmental friendliness is beneficial to industrialization and prepares on a large scale nanofiber.
Description
Technical field:
The utility model belongs to melt electrostatic spinning equipment technical field, relates to a kind of heating using microwave melt electrostatic spinning device, prepares micro nanometer fiber for scale.
Background technology:
The advantages such as electrostatic spinning is to prepare at present the simplest one of the method efficiently of polymer micro-nanometer fiber, simple with its device, raw material sources are extensive, with low cost, are subject to domestic and international extensive concern and research.The principle of electrostatic spinning technique is very simple, in electrostatic spinning process, polymer solution or melt form taylor cone under electric field force and capillary acting in conjunction, along with the increase of voltage, in the time that electrostatic force is greater than Surface Tension of Liquid Drops, taylor cone cone point can eject charged unstable jet, and jet is subject to slenderizing (whip moves effect) or the splitting refinement of electric field force in dropping process, finally on collecting board, obtains curing nanofiber.Compared with traditional solution electrostatic spinning, the following advantage of melt electrostatic spinning: the one, economical, in spinning process without the need for machine solvent, therefore without cost and the recovery problem of considering solvent (particularly some harmful or higher solvent of price under scale electrostatic spinning); The 2nd, efficient, the fiber fineness making is high, avoids the residue problem of solvent; The 3rd, environmental protection, effectively avoids the harm of organic solvent emission to the mankind and environment.Along with the continuous progress of electrostatic spinning technique, as the melt electrostatic spinning of important branch, improving spinning output, expand the aspects such as fiber applications field and have the incomparable huge advantage of solution electrostatic spinning, in recent years, develop and improve melt electrostatic spinning technology and become one of electrospinning study hotspot.
Although melt electrostatic spinning just proposes in the people's such as Charles Norton in 1936 patent, but because the fibre diameter of preparing is large and need the reasons such as heater, until within 1981, just there is relevant research paper to occur, after entering 21 century, really start the research boom of melt electrostatic spinning technology.Along with making constant progress of electrospinning, various improved novel melt electrostatic spinning devices are in the news out, always are for the development and Design of melt electrostatic spinning firing equipment the focus that researchers pay close attention to.The mode of heating of taking at present mainly contains LASER HEATING (J.Appl.Polym.Sci., 2007,104:1368), electrical heating, fluid heating (Biotechnol.J., 2006,1:98) and Hot-blast Heating (Polymer, 2007,48:6823) etc., wherein electrical heating is current comparatively general mode of heating, but while adopting electrically-heated coil to heat polymer melt, because heat time heating time is longer, may cause depolymerization, for the consideration of safety factor, how to avoid a difficult problem for voltage disturbance simultaneously, make equipment and instrument more complicated; Laser heating device hot spot concentrate, heat time heating time is short, and with high voltage without influencing each other, but defect is to realize the accurate control of heating-up temperature; Although Hot-blast Heating equipment is simple, cost is lower, the existence of air-flow often easy motion and deposition to melt jet causes interference; Fluid heating, conventionally according to melting point polymer difference, adopts respectively water-bath or oil bath, is wherein suitable for the melting point polymer temperature of circulating water heating at 55-60 DEG C; The heatable temperature of recycle oil reaches 255 DEG C, and the limitation of temperature range has limited the versatility of device greatly, and security is little in operating process.Therefore, seek to design a kind of flexible operation, simple in structure, Universal efficient, can be used in scale and prepare the melt electrostatic spinning device of micro nanometer fiber and there is good research and using value.
Summary of the invention:
Goal of the invention of the present utility model is to overcome the shortcoming that prior art exists; for common melt electrostatic spinning device complicated structure, heating-up temperature and spinning process not easy-regulating, be difficult to the shortcomings such as large-scale production, seek to design the efficient heating using microwave melt electrostatic spinning device of a kind of Portable safety.
To achieve these goals, agent structure of the present utility model comprises boost pump, barrel, microwave heating chamber, melting shower nozzle, materail tube, boost pump knob, boost pump switch, microwave frequency adjusting knob, heat time heating time setting knob, temperature control handle, high-voltage electric switch, voltage-regulation knob, high voltage source, gathering-device and electronic display; The leading flank of boost pump is provided with boost pump button, boost pump switch and electronic display, the opening and closing of boost pump switch control boost pump, and the propelling speed of boost pump is by regulating the setting of boost pump knob, the propelling speed that electronic display screen displays is set; The upper end fixed installation of boost pump is shaped with barrel, and one end of barrel is connected with propeller, and the other end is connected with materail tube, and materail tube is arranged in microwave heating chamber; Materail tube is connected with melting shower nozzle through microwave heating chamber, and the leading flank of microwave heating chamber is provided with microwave frequency adjusting knob, heat time heating time setting knob and temperature control handle; The positive pole of high voltage source is connected with melting shower nozzle, and negative pole is connected with the vertical gathering-device of placing; Distance between melting shower nozzle and gathering-device is 10-20 centimetre; High voltage source is provided with high-voltage electric switch and voltage-regulation knob.
When the utility model uses, first electrostatic spinning raw material is added in feeding cylinder, regulate boost pump knob to set the propelling speed of boost pump, electronical display screen display advances speed; Open again boost pump switch, under the impetus of boost pump, electrostatic spinning raw material is delivered in materail tube, then regulate microwave frequency adjusting knob, select microwave frequency to heat according to electrostatic spinning raw material, heat time heating time by heat time heating time setting knob set, by temperature control handle regulation and control heating-up temperature, the heating-up temperature of setting will be higher than the melt temperature of electrostatic spinning raw material; Electrostatic spinning heating raw materials, after the heating-up temperature of setting, is opened high-voltage electric switch, and regulation voltage adjusting knob makes operating voltage pass to melting shower nozzle, and electrostatic spinning process starts, and on gathering-device, collects and obtains electrostatic spinning nano fiber.
Electrostatic spinning raw material described in the utility model is one or more in the macromolecular materials such as Kynoar (PVDF), polyurethane (PU), PLA (PLA), poly-(ethylene glycol-caprolactone), poly-(ethylene-vinyl alcohol), polypropylene PP, polythene PE, full aromatic rings polyester, polyester, PEN.
The utility model compared with prior art, have the following advantages: the one, heating using microwave has the advantages such as firing rate is fast, the thermal efficiency is high, security is good, easy to use, mode of heating using microwave as melt electrospinning, not only can make up the deficiency of traditional melt electric spinning equipment, and prepare on a large scale nanofiber for industrialization thinking and reference are provided; The 2nd, microwave frequency can be set according to the different of material-to-be-heated shape, material from power, both can effectively improve the efficiency of heating surface, shorten heat time heating time, can cut down finished cost again, promotes greatly the suitability for industrialized production of melt electrostatic spinning; The 3rd, realized the controlling in real time accurately of barrel and melting shower nozzle place temperature, the temperature that overcomes traditional melt electric spinning equipment is difficult for a manipulation difficult problem, have control in time, be quick on the draw, the feature of convenient and efficient; The 4th, all parts contacting with microwave in the microwave heating chamber adopting is provided with anti-microwave leakage structure according to technical requirement, and in the time of design, with reference to existing micro-wave oven anti-microwave leakage structure technology, technical process is safety and environmental protection more; It is simple in structure, easy to operate, uses safety, and cost is low, and spinning efficiency is high, and automaticity is high, and environmental friendliness is beneficial to industrialization and prepares on a large scale nanofiber.
Brief description of the drawings:
Fig. 1 is agent structure principle schematic of the present utility model.
Detailed description of the invention:
Below by embodiment, also the utility model is described in further detail by reference to the accompanying drawings.
The agent structure of the present embodiment comprises boost pump 1, barrel 2, microwave heating chamber 3, melting shower nozzle 4, materail tube 5, boost pump knob 6, boost pump switch 7, microwave frequency adjusting knob 8, heat time heating time setting knob 9, temperature control handle 10, high-voltage electric switch 11, voltage-regulation knob 12, high voltage source 13, gathering-device 14 and electronic display 15; The leading flank of boost pump 1 is provided with boost pump button 6, boost pump switch 7 and electronic display 15, boost pump switch 7 is controlled the opening and closing of boost pump 1, the propelling speed of boost pump 1 is set by adjusting boost pump knob 6, the propelling speed of electronic display 15 display settings; The upper end fixed installation of boost pump 1 is shaped with barrel 5, and one end of barrel 5 is connected with propeller 1, and the other end is connected with materail tube 5, and materail tube 5 is arranged in microwave heating chamber 3; Materail tube 5 is connected with melting shower nozzle 4 through microwave heating chamber 3, and the leading flank of microwave heating chamber 3 is provided with microwave frequency adjusting knob 8, heat time heating time setting knob 9 and temperature control handle 10; The positive pole of high voltage source 13 is connected with melting shower nozzle 4, and negative pole is connected with the vertical gathering-device 14 of placing; Distance between melting shower nozzle 4 and gathering-device 14 is 10-20 centimetre; High voltage source 13 is provided with high-voltage electric switch 11 and voltage-regulation knob 12.
When the present embodiment uses, first electrostatic spinning raw material is added in feeding cylinder 2, regulate boost pump knob 6 to set the propelling speed of boost pump 1, electronical display screen display advances speed; Open again boost pump switch 7, under the impetus of boost pump 7, electrostatic spinning raw material is delivered in materail tube 5, then regulate microwave frequency adjusting knob 8, select microwave frequency to heat according to electrostatic spinning raw material, heat time heating time by heat time heating time setting knob 9 set, regulate and control heating-up temperature by temperature control handle 10, the heating-up temperature of setting will be higher than the melt temperature of electrostatic spinning raw material; Electrostatic spinning heating raw materials, after the heating-up temperature of setting, is opened high-voltage electric switch 11, and regulation voltage adjusting knob 12 makes operating voltage pass to melting shower nozzle 4, and electrostatic spinning process starts, and on gathering-device 14, collects and obtains electrostatic spinning nano fiber.
Embodiment 1: heating using microwave melt electrostatic spinning device is prepared Kynoar (PVDF) nanofiber
The present embodiment first joins PVDF powder in barrel 2, regulate boost pump knob 6 to carry out setting parameter to boost pump 1, control feed and advance speed, in electronic display 15, show that concrete flow advances speed, open again boost pump switch 7, under the progradation of boost pump, PVDF raw material is pushed in materail tube 5; In microwave heating chamber 3, regulate microwave frequency adjusting knob 8, select the microwave frequency of 2.4～2.5GHz to heat according to spinning material PVDF, heat time heating time by temperature adjustment knob 9 be set as 30 seconds～2 minutes, select regulating and controlling temperature by temperature control handle 10, design temperature is 205-235 DEG C, higher than 175 DEG C of the melt temperatures of PVDF; If actual temperature exceedes design temperature, heating mode is automatically changeb to insulation pattern; Being carried out to heating using microwave, PVDF raw material reaches after design temperature, open high-voltage electric switch 11, adjusting knob 12 selects the operating voltage of 20-60 kilovolt to be applied on melting shower nozzle 4, can on gathering-device 14, obtain PVDF nanofiber, the distance between fuse shower nozzle 4 and gathering-device 14 is 10-20 centimetre.
Embodiment 2: heating using microwave melt electrostatic spinning device is prepared polyvinylidene fluoride/polyurethane (PVDF/PU) composite nano fiber
The PVDF that the present embodiment is first 80:20 by mass ratio and PU powder mix, then join in barrel 2, regulate boost pump flow knob 6 to carry out setting parameter to boost pump 1, control feed and advance speed, in electronic display 15, show that concrete flow advances speed, open boost pump switch 7, under the progradation of boost pump, PVDF/PU raw material is pushed in materail tube 5, in microwave heating chamber 3, regulate microwave frequency adjusting knob 8, selecting microwave frequency according to spinning material PVDF/PU is that 2.4～2.5GHz heats, heat time heating time by temperature adjustment knob 9 be set as 30 seconds～2 minutes, select regulating and controlling temperature by temperature control handle 10, design temperature is 205-235 DEG C, higher than 165 DEG C of the melt temperatures of 175 DEG C of the melt temperatures of PVDF and PU, being carried out to heating using microwave, PVDF/PU raw material reaches after design temperature, open high-voltage electric switch 11, adjusting knob 12 selects the operating voltage of 20-60 kilovolt to be applied on melting shower nozzle 4, can on gathering-device 14, obtain PVDF/PU nanofiber, distance between fuse shower nozzle 4 and gathering-device 14 is 10-20 centimetre.
Claims (1)
1. a heating using microwave melt electrostatic spinning device, is characterized in that agent structure comprises boost pump, barrel, microwave heating chamber, melting shower nozzle, materail tube, boost pump knob, boost pump switch, microwave frequency adjusting knob, heat time heating time setting knob, temperature control handle, high-voltage electric switch, voltage-regulation knob, high voltage source, gathering-device and electronic display; The leading flank of boost pump is provided with boost pump button, boost pump switch and electronic display, and the upper end fixed installation of boost pump is shaped with barrel, and one end of barrel is connected with propeller, and the other end is connected with materail tube, and materail tube is arranged in microwave heating chamber; Materail tube is connected with melting shower nozzle through microwave heating chamber, and the leading flank of microwave heating chamber is provided with microwave frequency adjusting knob, heat time heating time setting knob and temperature control handle; The positive pole of high voltage source is connected with melting shower nozzle, and negative pole is connected with the vertical gathering-device of placing; Distance between melting shower nozzle and gathering-device is 10-20 centimetre; High voltage source is provided with high-voltage electric switch and voltage-regulation knob.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420469526.XU CN203999954U (en) | 2014-08-19 | 2014-08-19 | A kind of heating using microwave melt electrostatic spinning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420469526.XU CN203999954U (en) | 2014-08-19 | 2014-08-19 | A kind of heating using microwave melt electrostatic spinning device |
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| Publication Number | Publication Date |
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| CN203999954U true CN203999954U (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420469526.XU Expired - Fee Related CN203999954U (en) | 2014-08-19 | 2014-08-19 | A kind of heating using microwave melt electrostatic spinning device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106350873A (en) * | 2016-09-22 | 2017-01-25 | 南通纺织丝绸产业技术研究院 | Hot-melting electrostatic integrated spinning machine |
-
2014
- 2014-08-19 CN CN201420469526.XU patent/CN203999954U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106350873A (en) * | 2016-09-22 | 2017-01-25 | 南通纺织丝绸产业技术研究院 | Hot-melting electrostatic integrated spinning machine |
| CN106350873B (en) * | 2016-09-22 | 2018-11-02 | 南通纺织丝绸产业技术研究院 | A kind of hot melt electrostatic integration spinning machine equipment |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20170819 |
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| CF01 | Termination of patent right due to non-payment of annual fee |