CN102505447B - Device and method for continuously processing fiber surface by atmospheric low temperature radio frequency plasma - Google Patents
Device and method for continuously processing fiber surface by atmospheric low temperature radio frequency plasma Download PDFInfo
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- CN102505447B CN102505447B CN 201110296753 CN201110296753A CN102505447B CN 102505447 B CN102505447 B CN 102505447B CN 201110296753 CN201110296753 CN 201110296753 CN 201110296753 A CN201110296753 A CN 201110296753A CN 102505447 B CN102505447 B CN 102505447B
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Abstract
The invention relates to a device and method for continuously processing a fiber surface by atmospheric low temperature radio frequency plasma. The device comprises a tube body, and a first ceramic tube arranged in the tube body by support connection blocks arranged at the two ends and the middle of the tube body. The support connection blocks at the two ends of the tube body are provided with a second ceramic tube inside, the second ceramic tube communicates with the first ceramic tube, one electrode is arranged on each of the two sides of the first ceramic tube, and one of the support connection blocks at the two ends of the tube body is provided with a gas inlet tube in communication with the second ceramic tube. One of the two electrodes is grounded while the other one is connected tohigh voltage. The outer wall of the tube body is grounded. In the method, a fiber bundle passes through the first ceramic tube, and the electrode is applied with voltage to form a discharge plasma region inside the first ceramic tube so as to process the surface of the fiber. The invention can generate uniform and stable low-temperature plasma to remarkably improve the fiber surface structure andperformance.
Description
Technical field
The present invention relates to the fiber surface processing technology field, particularly relate to the device and method that a kind of atmos low-temperature radio frequency plasma is handled fiber surface continuously.
Background technology
Fibre reinforced composites are very meaningful and with broad prospects for development a kind of materials now, have characteristics such as the high and quality of intensity is light, are widely used in high-tech sector and civilian industries such as Aeronautics and Astronautics and national defence.The high-performance fiber that has advantages such as high strength, high-modulus, high elasticity as the fiber of reinforcing material is as carbon fiber, high-strength high-modulus polyethylene (UHMWPE) fiber, aramid fiber, polyparaphenylene's benzo dioxazole (PBO) fiber.Yet, most high-performance fiber smooth surface, chemical reactivity is low, and is bad with resin matrix adhesiveness and wettability, causes the interface bonding very poor, seriously restricted its application in high-performance composite materials.Therefore, necessary these high-performance fibers are carried out surface modification, to improve the adhesive property of itself and matrix material.
The method of these high-performance fibers being carried out surface modification has a lot, and wherein the plasma fiber surface modification is a kind of efficient and low cost method, and it only acts on the fiber top layer, and is little to the fibrous matrix damage, has efficient, environmental protection, simple operation and other advantages.Traditional plasma modification carries out under environment under low pressure, needs complicated vacuum system, the cost height, and can not handle continuously, limited the promotion and application of this technology.Atmospheric pressure plasma has overcome the shortcoming of low pressure plasma, and it does not need vacuum system, can work under normal pressure, and cost is low, and can realize continuous processing, is applicable to online production, is subjected to domestic and international researcher's extensive attention in recent years.At present, the form that fiber is shown the main plate electrode discharge of the method for carrying out atmospheric plasma treatment, this method can realize the large tracts of land discharge, but have following problem in handling continuously: 1) the electric discharge device volume is bigger, it is bigger to take up an area of the space, need the working gas of high flow capacity to keep the stable of discharge simultaneously, increased the consumption of gas; 2) region of discharge length is shorter, and Cement Composite Treated by Plasma speed is slower when causing serialization to be handled, and energy utilizes insufficient; 3) for reducing unit temp, most of device needs water cooling plant, has increased complexity and the use cost of device.
Summary of the invention
Technical problem to be solved by this invention provides the device and method that a kind of atmos low-temperature radio frequency plasma is handled fiber surface continuously, makes gas consumption reduce under the prerequisite of discharge stability keeping.
The technical solution adopted for the present invention to solve the technical problems is: provide a kind of atmos low-temperature radio frequency plasma to handle the device of fiber surface continuously, comprise body and first earthenware, described first earthenware is arranged in the described body by being arranged on the middle support and connection piece of described body two ends and body; Be provided with second earthenware in the support and connection piece at described body two ends, described second earthenware communicates with first earthenware; The described first earthenware both sides respectively are provided with an electrode; A support and connection piece in the support and connection piece at described body two ends is provided with the air inlet pipe that communicates with second earthenware; In described two electrodes, an electrode grounding, another root electrode connects high pressure; The outer wall ground connection of described body.
Also be provided with transformer in the described body; On the sidewall of described body fan is installed; Described transformer links to each other with fan.
Be provided with spacer between described transformer and the electrode.
Have louvre on two relative sidewalls of described body.
Be provided with a movable block in the described support and connection piece that is inserted with air inlet pipe; Described movable block is positioned at the other end that second earthenware does not communicate with first earthenware.
Described first earthenware is that the cross section is foursquare earthenware, is of a size of 450mm * 15mm * 15mm, and the wall thickness of first earthenware is 2.5mm; The width of electrode is 5mm, and length is 450mm; Second earthenware is that the cross section is circular earthenware, and interior diameter is 3mm, and wall thickness is 1mm.
The technical solution adopted for the present invention to solve the technical problems is: also provide a kind of atmos low-temperature radio frequency plasma to handle the method for fiber surface continuously, may further comprise the steps:
(1) from fiber roll, pulls out fibre bundle through wire feeder, send in described first earthenware and pass, reel by receiving silk device again;
(2) pure gas or mist are sent in first earthenware by air inlet pipe, gas flow direction is opposite with the direction of motion of fibre bundle;
(3) open radio-frequency power supply, make the electrifying electrodes that connects high pressure, form the plasma discharging body region in the earthenware of winning thereby make;
(4) open the receipts silk device, receive silk.
Be provided with rotating axle in the middle of the described fiber roll and support, this axle provides tension force to fibre bundle in the continuous processing procedure of fiber.
Described receipts silk device is digital up-coiler, receives silk with the linear velocity of the 1-100m/min that sets.
Beneficial effect
Owing to adopted above-mentioned technical scheme, the present invention compared with prior art, have following advantage and good effect: the present invention adopts said apparatus that fibre bundle is handled continuously, owing to belong to the frequency medium barrier glow discharging, can produce uniform and stable low temperature plasma, obviously improved structure and the performance of fiber surface, the adhesive property of itself and resin compounded has been improved greatly, and can not reduce the mechanical property of fiber; The copper bar electrode width that adopts is 5mm, make whole fibre bundle be in region of discharge, under the suitable situation of copper bar width, increased simultaneously the length (single 450mm) of copper bar, make plasma act on more effectively on the fiber surface, reduced energy consumption, improved the speed of continuous processing fibre bundle; Adopting internal diameter is the round earthenware of 3mm, has guaranteed that fibre bundle can pass in and out the plasma zone smoothly on the one hand, guarantees the interior plasma of square earthenware zone working gas purity on the other hand and has reduced gas consumption; Adopt the commutator transformer of 12V to lower the temperature to device as the power drives fan, and dispel the heat by louvre, to the influence of fibre structure and mechanical property, compare with the water-cooling apparatus of complexity simultaneously when having avoided unit temp too high, reduced complexity and the expense of device; Employing top electrode ground connection, transformer are installed in the form of device inside, whole stainless steel outer wall ground connection, have increased the processing safety of this device.
Description of drawings
Fig. 1 is system architecture schematic diagram of the present invention;
Fig. 2 is the partial sectional view of system of the present invention;
Fig. 3 is the cutaway view along A-A among Fig. 2;
Fig. 4 is the vertical view of the polytetrafluoroethylene (PTFE) piece of right-hand member among Fig. 1;
Fig. 5 is the left view of the polytetrafluoroethylene (PTFE) piece of left end among Fig. 1;
Fig. 6 is the stainless steel rear wall schematic diagram that fan is installed.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used for explanation the present invention and be not used in and limit the scope of the invention.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
As depicted in figs. 1 and 2, atmospheric pressure radio frequency glow discharge plasma of the present invention is handled the device of fiber surface continuously, comprise square earthenware 1, two copper bar electrodes 2 and 3 up and down, polytetrafluoroethylene (PTFE) support and connection piece 5,9 and 10, air inlet pipe 6, round ceramic pipe 8, transformer 11 and polytetrafluoroethylene (PTFE) spacer 12, fan 14, stainless steel body and be arranged on louvre 15 on the stainless steel tube wall 13,16,17 and 20.
Two copper bar electrodes 2 and 3 constitute earth electrode and high-field electrode respectively up and down, form the gas discharge plasma zone in square earthenware 1; Transformer 11 drives electric fan 14 and rotates, by louvre 15 heat radiations on stainless steel outer wall 13 and 20; Be provided with a polytetrafluoroethylene (PTFE) movable block 7 in the polytetrafluoroethylene (PTFE) support and connection piece 5, it can be taken out the square earthenware 1 that inserts another same size, thereby can increase the length in gas discharge plasma zone as required.
Design feature of the present invention is as follows:
1) square earthenware 1 is simultaneously as dielectric barrier and plasma reaction chamber, and earthenware wall thickness and internal clearance are respectively 2.5mm and 11mm * 11mm, and joint length is 450mm; The copper bar electrode width is 5mm, top electrode 2 ground connection, and bottom electrode 3 connects radio-frequency power supply; Adopt stainless steel as the device outer wall, simultaneously with whole outer wall ground connection, as Fig. 1, Fig. 2 and shown in Figure 3.
2) respectively there is a round ceramic pipe 8 at polytetrafluoroethylene (PTFE) support and connection piece 7 and 9 center, and the wall thickness of round ceramic pipe 8 and internal diameter are respectively 1mm and 3mm; Gas feeds from the air inlet pipe 6 on the polytetrafluoroethylene (PTFE) support and connection piece 5, discharges via the round ceramic pipe 8 at two ends, as Fig. 1, Fig. 2, Fig. 4 and shown in Figure 5.
3) the polytetrafluoroethylene (PTFE) movable block 7 in the polytetrafluoroethylene (PTFE) support and connection piece 5 can take out it as required, and inserts another identical square earthenware 1 at this place, as depicted in figs. 1 and 2.
4) commutator transformer 11 of 12V is positioned over body inside, and separates by polytetrafluoroethylene (PTFE) spacer 12 and electrode 2 and 3, drives the fan 14 that is installed on the stainless steel outer wall 13 and rotates; Louvre 15 is opened on stainless steel outer wall 13 and 20 simultaneously, as Fig. 1 and shown in Figure 6.
5) the device two ends are by the wire feeder of being made up of fiber roll 25, spiral coil 24 and branch silk device 19 and receipts silk device 25.
Specific embodiments of the invention and step:
1) a volume fiber 25 is inserted on the rotary axle, fibre bundle 18 is passed through spiral coil 24 and divides silk device 19, send into the gas-discharge tube plasma zone in the square earthenware 1, after being come out by the round ceramic pipes 8 in the polytetrafluoroethylene (PTFE) support and connection piece 5, be wrapped in and receive on the silk device 23, between 1-100m/min, configure the speed that needs simultaneously.
2) pure gas or mist are sent in the square earthenware 1 (gas flow can be controlled by flowmeter) by air inlet pipe 6, gas flow direction is opposite with the direction of motion of fibre bundle 18.
3) open the switch of fan 14, open the 2MHz radio-frequency power supply, gas discharge under atmospheric pressure produces the frequency medium barrier glow discharging plasma, makes and forms the plasma discharging body region in the earthenware of winning.
4) open receipts silk device 23, carry out plasma and handle continuously.
5), polytetrafluoroethylene (PTFE) movable block 7 can be taken out, with square earthenware one end of another same apparatus, earthenware left end as shown in Figure 1 (removing polytetrafluoroethylene (PTFE) piece 9) inserts if needed, and the electrode with two same apparatus connects with lead simultaneously.At this moment, breather pipe 6 is (on the polytetrafluoroethylene (PTFE) piece 5 between two devices) still in situ, and namely gas feeds in the middle of installing.
Be not difficult to find, the present invention adopts said apparatus and method that fibre bundle is handled continuously, owing to belong to the frequency medium barrier glow discharging, can produce uniform and stable low temperature plasma, structure and the performance of fiber surface have obviously been improved, the adhesive property of itself and resin compounded is improved greatly, and can not reduce the mechanical property of fiber; The copper bar electrode width that adopts is 5mm, make whole fibre bundle be in region of discharge, under the suitable situation of copper bar width, increased simultaneously the length (single 450mm) of copper bar, make plasma act on more effectively on the fiber surface, reduced energy consumption, improved the speed of continuous processing fibre bundle; Adopting internal diameter is the round earthenware of 3mm, has guaranteed that fibre bundle can pass in and out the plasma zone smoothly on the one hand, guarantees the interior plasma of square earthenware zone working gas purity on the other hand and has reduced gas consumption; Adopt the commutator transformer of 12V to lower the temperature to device as the power drives fan, and dispel the heat by louvre, to the influence of fibre structure and mechanical property, compare with the water-cooling apparatus of complexity simultaneously when having avoided unit temp too high, reduced complexity and the expense of device; Employing top electrode ground connection, transformer are installed in the form of device inside, whole stainless steel outer wall ground connection, have increased the processing safety of this device.
Claims (9)
1. an atmos low-temperature radio frequency plasma is handled the device of fiber surface continuously, comprise body and first earthenware (1), it is characterized in that described first earthenware (1) is by being arranged on the middle support and connection piece (5 of described body two ends and body, 9,10) be arranged in the described body; Be provided with second earthenware (8) in the support and connection piece (5,9) at described body two ends, described second earthenware (8) communicates with first earthenware (1); Described first earthenware (1) both sides respectively are provided with an electrode (2,3); Support and connection piece (5) in the support and connection piece (5,9) at described body two ends is provided with the air inlet pipe (6) that communicates with second earthenware (8); In two electrodes (2,3), an electrode (2) ground connection, another root electrode (3) connects high pressure; The outer wall of described body (13,16,17,20) ground connection.
2. atmos low-temperature radio frequency plasma according to claim 1 is handled the device of fiber surface continuously, it is characterized in that, also is provided with transformer (11) in the described body; On the outer wall (13) of described body fan (14) is installed; Described transformer (11) links to each other with fan (14).
3. atmos low-temperature radio frequency plasma according to claim 2 is handled the device of fiber surface continuously, it is characterized in that, is provided with spacer (12) between described transformer (11) and the electrode.
4. atmos low-temperature radio frequency plasma according to claim 1 is handled the device of fiber surface continuously, it is characterized in that, has louvre (15) on two relative outer walls (13,17) of described body.
5. atmos low-temperature radio frequency plasma according to claim 1 is handled the device of fiber surface continuously, it is characterized in that, is provided with a movable block (7) in the described support and connection piece (5) that is inserted with air inlet pipe (6); Described movable block (7) is positioned at the other end that second earthenware (8) does not communicate with first earthenware.
6. atmos low-temperature radio frequency plasma according to claim 1 is handled the device of fiber surface continuously, it is characterized in that, described first earthenware (1) is of a size of 450mm * 16mm * 16mm for the cross section is foursquare earthenware, and the wall thickness of first earthenware (1) is 2.5mm; The width of described electrode (2,3) is 5mm, and length is 450mm; Described second earthenware (8) is circular earthenware for the cross section, and interior diameter is 3mm, and wall thickness is 1mm.
7. the described device of arbitrary claim is handled the method for fiber surface among a use such as the claim 1-6, it is characterized in that, may further comprise the steps:
(1) from fiber roll, pulls out fibre bundle through wire feeder, send in described first earthenware and pass, reel by receiving silk device again;
(2) pure gas or mist are sent in first earthenware by air inlet pipe, gas flow direction is opposite with the direction of motion of fibre bundle;
(3) open radio-frequency power supply, make the electrifying electrodes that connects high pressure, form the plasma discharging body region in the earthenware of winning thereby make;
(4) open the receipts silk device, receive silk.
8. the method for processing fiber surface according to claim 7 is characterized in that, is provided with rotating axle in the middle of the described fiber roll and supports, and this axle provides tension force to fibre bundle in the continuous processing procedure of fiber.
9. the method for processing fiber surface according to claim 7 is characterized in that, described receipts silk device is digital up-coiler, receives silk with the linear velocity of the 1-100m/min that sets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110296753 CN102505447B (en) | 2011-09-27 | 2011-09-27 | Device and method for continuously processing fiber surface by atmospheric low temperature radio frequency plasma |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110296753 CN102505447B (en) | 2011-09-27 | 2011-09-27 | Device and method for continuously processing fiber surface by atmospheric low temperature radio frequency plasma |
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| CN102505447A CN102505447A (en) | 2012-06-20 |
| CN102505447B true CN102505447B (en) | 2013-10-09 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP3187653B1 (en) * | 2014-07-22 | 2020-07-08 | Silk Wave Sangyo Co. Ltd. | Method for manufacturing surface-modified fiber material |
| CN105442297B (en) * | 2016-01-08 | 2017-07-04 | 南京苏曼等离子科技有限公司 | Uniform Discharge low temperature plasma fabric processing equipment and method under intelligent atmospheric pressure |
| CN110139457A (en) * | 2018-11-06 | 2019-08-16 | 南京苏曼等离子科技有限公司 | Sub- vacuum low-temperature plasma on-line continuous material handling device |
| CN117545158A (en) * | 2023-11-09 | 2024-02-09 | 东莞市晟鼎精密仪器有限公司 | Radio frequency linear plasma generating device |
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| CN2471812Y (en) * | 2001-04-17 | 2002-01-16 | 华中科技大学 | Radio frequency exciting plasma fabric modifying apparatus |
| CN1428188A (en) * | 2001-12-27 | 2003-07-09 | 财团法人工业技术研究院 | Dielectric layer discharging device for treating perfluoride and its module |
| CN1198012C (en) * | 2002-12-12 | 2005-04-20 | 东华大学 | Medium-blocked continuous discharge treater for modifying surface of fiber material |
| JP2005089908A (en) * | 2003-09-18 | 2005-04-07 | Toyobo Co Ltd | Electric discharge treatment apparatus |
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