CN105611711A - Gas-liquid two-phase plasma generating device for polymer surface modification - Google Patents
Gas-liquid two-phase plasma generating device for polymer surface modification Download PDFInfo
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- CN105611711A CN105611711A CN201510995200.XA CN201510995200A CN105611711A CN 105611711 A CN105611711 A CN 105611711A CN 201510995200 A CN201510995200 A CN 201510995200A CN 105611711 A CN105611711 A CN 105611711A
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- fixedly connected
- casing
- liquid
- connecting rod
- generating device
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/24—Generating plasma
- H05H1/2406—Generating plasma using dielectric barrier discharges, i.e. with a dielectric interposed between the electrodes
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B19/00—Teaching not covered by other main groups of this subclass
Abstract
The invention provides a gas-liquid two-phase plasma generating device for polymer surface modification. The gas-liquid two-phase plasma generating device comprises a box body, wherein four corners of the lower end surface at the bottom of the box body are fixedly connected with four legs; a water channel for accommodating liquid is formed in the bottom surface of the interior of the box body; the inner side surface of the box body is fixedly connected with a fixed pole plate component; the fixed pole plate component is positioned above the water channel; the top of the box body is fixedly connected with a movable pole plate component; the movable pole plate component is positioned above the fixed pole plate component; and the movable pole plate component and the fixed pole plate component are oppositely arranged up and down. Moreover, the top of the box body is further provided with a digital dial gauge, an air inlet hole, an air outlet hole, a pressure gauge and the like. The device provided by the invention can realize single gas-phase medium barrier discharge of different gas compositions and gas-phase medium barrier discharge of different liquid compositions, plasma surface modification experiments for polymer materials such as polypropylene are realized, and the hydrophilic recovery state of polymers is observed.
Description
Technical field
The present invention relates to experimental facilities field, especially relate to a kind of polymer surface modification gas-liquid two-phase plasma generating device.
Background technology
The surface treatment of dielectric barrier discharge plasma to materials such as polymer such as polypropylene, its advantage is that the time of effect is short, and useful effect is only limited to superficial layer, and the Physical Mechanical loss of energy of material is little. But atmospheric low-temperature dielectric barrier discharge plasma is because of the active specy of its generation, is difficult to the chemical reaction occurring and is being subject to extensive concern aspect degradation reaction, synthetic reaction, material preparation and modification as high-octane electronics, free radical can cause. The chemical reaction mechanism that simple gas discharge plasma causes is radical mechanism, and this is favourable for degradable reaction, but for synthetic reaction, object selectivity of product is lower. For improving the selective of synthetic reaction product or improving degradation reaction efficiency, introduce solid or liquid medium to simple gas discharge plasma. With respect to solid dielectric, liquid phase medium has the special nature such as mobility and vapo(u)rability, the impact of plasma discharge characteristics is larger, and most of chemical reaction carries out in liquid phase, therefore studies under low temperature plasma effect the chemical reaction in liquid phase significant. But do not produce in the market the device product of gas-liquid plasma, so need independent research.
Summary of the invention
The object of the present invention is to provide a kind of polymer surface modification gas-liquid two-phase plasma generating device, be mainly used in studying the plasma surface modification effect of gas-liquid plasma to polymeric materials such as polypropylene.
In order to achieve the above object, the technical scheme that the present invention takes is: a kind of polymer surface modification gas-liquid two-phase plasma generating device, comprise casing, the Si Ge angle, lower surface of described bottom half is fixedly connected with four post legs, described box house bottom surface is provided with the tank of contain fluid, described box house is fixedly connected with fixed polar plate parts on side, fixed polar plate parts are positioned at the top of tank, the top of described casing is fixedly connected with movable polar plate parts, movable polar plate parts are positioned at the top of fixed polar plate parts, and movable polar plate parts and fixed polar plate parts are oppositely arranged up and down.
Described movable polar plate parts comprise insulated connecting rod, screw rod, top crown, adjust handwheel, limit shaft, traveling nut, instruction connecting rod, limiting plate, described insulated connecting rod vertically arranges, lower end and the top crown of insulated connecting rod removably connect, screw rod is positioned at the top of vertical insulated connecting rod, and the lower end of screw rod is connected by traveling nut with the upper end of insulated connecting rod, the upper end of screw rod is arranged on the upper surface of casing, the end, upper end of screw rod is fixedly connected with adjustment handwheel, described limit shaft is vertically through insulated connecting rod setting, the left end of limit shaft and vertical being fixedly connected with in lower end of indicating connecting rod, the upper end of instruction connecting rod is arranged on the upper surface of casing, vertical being slidably connected of lower end vertical plate of the right-hand member of limit shaft and limiting plate, the upper end level board of limiting plate is fixedly connected with the side of casing.
Described fixed polar plate parts comprise bottom crown, fixed support, described fixed support comprises the first horizon bar, the first vertical rod, the second horizon bar, the upper end of the first vertical rod is fixedly connected with one end of the first horizon bar, the other end of the first horizon bar is fixedly connected with the side of casing, the lower end of the first vertical rod is fixedly connected with one end of the second horizon bar, and the other end and the bottom crown of the second horizon bar removably connect; Top crown is parallel with bottom crown to be oppositely arranged, and is provided with spacing between top crown and bottom crown.
The top of described casing is provided with pore, air admission hole, aspirating hole, the top of described casing is fixedly connected with dial indicator bracket, on dial indicator bracket, be fixedly connected with digital dial gauge, and the pointer of digital dial gauge contacts with the end, upper end of instruction connecting rod, and the side of described casing is provided with positive electrode joint, negative electrode connector.
Between the bottom of described tank and the upper surface of bottom half, be provided with tank backing plate.
The center line of described screw rod, insulated connecting rod, top crown, bottom crown is all on same straight line.
Between described fixed support and casing, be provided with link, and link is inverted "L" shaped, the horizontal segment of link is fixedly connected with support bracket fastened the first horizon bar, and the vertical section of link is fixedly connected with the side of box house.
Described limiting plate is inverted "L" shaped structure, and the vertical plate of the inverted "L" shaped structure of limiting plate is fixedly connected with limit shaft, and the level board of the inverted "L" shaped structure of limiting plate is fixedly connected with the upper surface of box house.
The side of described casing is provided with observation window, and described observation window is provided with quartz glass.
The quantity of described limit shaft is two.
The side of described casing is provided with the access door of being convenient to equipment inspection, and access door is in the time of closed condition, between access door and casing, seals and arranges.
The side of described traveling nut is provided with vertical opening, and the lower end of opening and the lower surface of traveling nut communicate, and the upper end of opening and the upper surface of traveling nut are provided with spacing.
On described screw rod, be arranged with spring, and spring is between the upper surface and traveling nut of casing.
The invention has the beneficial effects as follows, device of the present invention can be realized the single gas phase media of gas with various composition and the gas phase media barrier discharge of different liquids composition, realize the plasma surface modification experiment of the polymeric materials such as polypropylene, the hydrophily recovery of observing polymer.
Brief description of the drawings
Fig. 1 is the overall structure schematic diagram of apparatus of the present invention;
Fig. 2 is the perspective view of movable polar plate parts of the present invention;
Fig. 3 is the cross-sectional view of movable polar plate parts of the present invention;
Fig. 4 is fixed polar plate modular construction schematic diagram of the present invention.
Detailed description of the invention
For making object of the present invention, technical scheme and beneficial effect clearer, below in conjunction with accompanying drawing, embodiment of the present invention is described in further detail.
As shown in Figure 1, a kind of polymer surface modification gas-liquid two-phase plasma generating device, comprise casing 1, the Si Ge angle, lower surface of described casing 1 bottom is fixedly connected with four post legs 2, described casing 1 inner bottom surface is provided with the tank 3 of contain fluid, between the bottom of tank 3 and the upper surface of casing 1 bottom, is provided with tank backing plate 13. In described casing 1 inner side, be fixedly connected with fixed polar plate parts 4, fixed polar plate parts 4 are positioned at the top of tank 3, the top of described casing 1 is fixedly connected with movable polar plate parts 5, movable polar plate parts 5 are positioned at the top of fixed polar plate parts 4, and movable polar plate parts 5 are oppositely arranged up and down with fixed polar plate parts 4.
As shown in Figure 2 and Figure 3, described movable polar plate parts 5 comprise insulated connecting rod 51, screw rod 52, top crown 53, traveling nut 54, adjust handwheel 55, limit shaft 56, instruction connecting rod 57, limiting plate 58, described insulated connecting rod 51 vertically arranges, the lower end of insulated connecting rod 51 and top crown 53 removably connect, screw rod 52 is positioned at the top of vertical insulated connecting rod 51, and the lower end of screw rod 52 is connected by traveling nut 54 with the upper end of insulated connecting rod 51. the side of described traveling nut 54 is provided with vertical opening, and the lower end of opening communicates with the lower surface of traveling nut 54, and the upper surface of the upper end of opening and traveling nut 54 is provided with spacing. the upper end of screw rod 52 is arranged on the upper surface of casing 1, the end, upper end of screw rod 52 is fixedly connected with adjustment handwheel 55, the side of described traveling nut 54 is provided with vertical opening, two limit shafts 56 vertically pass insulated connecting rod 51 by vertical opening, the left end of limit shaft 56 and vertical being fixedly connected with in lower end of indicating connecting rod 57, the upper end of instruction connecting rod 57 is arranged on the upper surface of casing 1, vertical being slidably connected of lower end vertical plate of the right-hand member of limit shaft 56 and inverted "L" shaped structure limiting plate 58, in the present embodiment by being provided with vertical opening on the lower end vertical plate at inverted "L" shaped structure limiting plate 58, the right-hand member of limit shaft 56 is passed from vertical opening, and the right-hand member of limit shaft 56 can slide up and down in vertical opening, the upper end level board of inverted "L" shaped structure limiting plate 58 is fixedly connected with the upper surface of casing 1 inside, in addition, on described screw rod 52, be arranged with spring 19, and spring 19 is between the upper surface and traveling nut 54 of casing 1, so more be conducive to adjust the rotation adjusting of handwheel 55.
As shown in Figure 4, described fixed polar plate parts 4 comprise fixed support 41, bottom crown 42, described fixed support 41 comprises the first horizon bar 411, the first vertical rod 412, the second horizon bar 413, the upper end of the first vertical rod 412 is fixedly connected with one end of the first horizon bar 411, the other end of the first horizon bar 411 is fixedly connected with the side of casing 1, the lower end of the first vertical rod 412 is fixedly connected with one end of the second horizon bar 413, the other end of the second horizon bar 413 and bottom crown 42 removably connect, and described screw rod 52, insulated connecting rod 51, top crown 53, the center line of bottom crown 42 is all on same straight line. top crown 53 is parallel with bottom crown 42 to be oppositely arranged, and is provided with spacing between top crown 53 and bottom crown 42.
Between described fixed support 41 and casing 1, be provided with link 14, and link 14 is inverted "L" shaped, the horizontal segment of link 14 is fixedly connected with the first horizon bar 411 of fixed support 41, and the vertical section of link 14 is fixedly connected with the side of casing 1 inside.
As shown in Figure 1, the top of described casing 1 is provided with pore 15, air admission hole 6, aspirating hole 7, described pore 15 is provided with Pressure gauge 16, the top of described casing 1 is fixedly connected with dial indicator bracket 8, on dial indicator bracket 8, be fixedly connected with digital dial gauge 9, and the pointer of digital dial gauge 9 contacts with the end, upper end of instruction connecting rod 57, and the side of described casing 1 is provided with positive electrode joint 17, negative electrode connector 18.
The side of described casing 1 is provided with observation window 10, and described observation window 10 is provided with quartz glass 11, is convenient to the course of reaction to the inside in experimentation and observes. The side of described casing 1 is provided with the access door 12 of being convenient to equipment inspection, when access door 12 is during in closed condition, between access door 12 and casing 1, in sealing state, in the time that experimental provision breaks down, opens access door 12, so that experimental provision is overhauled.
In the time that device carries out single gas phase plasma test, at the air admission hole 6 of casing 1, on venthole 7, be installed into respectively tracheae and escape pipe, when direct employing air carries out the surperficial modification experiment of the polymeric materials such as polypropylene as reacting gas, can be by the distance between top crown 53 and bottom crown 42 being carried out to the accurate adjustment of millimeter magnitude, be rotated down and adjust handwheel 55, and then drive screw rod 52 to move down, screw rod 52 presses limit shaft 56, limit shaft 56 drives instruction connecting rod 57, insulated connecting rod 51, top crown 53 moves down, change the distance between top crown 53 and bottom crown 42, the size that wherein top crown 53 moves down distance is shown by the pointer movement of indicating connecting rod 57 to touch digital dial gauge 9, when wherein the distance between top crown 53 and bottom crown 42 adjusting, all need each time the pointer zeroing to digital dial gauge 9, on the basis of returning to zero at the pointer of digital dial gauge 9, adjust. after adjusting distance, positive electrode joint 17, negative electrode connector 18 are connected respectively with negative pole with the positive pole of external plasma power supply, are in series with resistance, play dividing potential drop effect, then connect oscillograph, carry out gaseous plasma test simultaneously. voltage, the current waveform figure of electric discharge can be shown by oscillograph, the size of effective discharge voltage, electric current, virtual value, peak-to-peak value (superiors and lower peak-to-peak difference) can also be read. gather discharge waveform figure oringe software analysis experimental data. change the spacing between top crown 53 and bottom crown 42 by adjusting handwheel 55, for example, when spacing is 1 millimeter, 2 millimeters, 3 millimeters, 4 millimeters, carry out respectively plasma discharge test, collection parameter. in the process of test, can observe the test situation in casing by the quartz glass 11 on observation window 10.
Air in this outer case can also be replaced according to requirement of experiment with helium, nitrogen, carbon dioxide, oxygen etc.
In the time that device produces liqu id plasmas test, open the access door 12 on casing 1 side, in tank 3, add the needed solution such as water or acetone, bottom crown 42 is immersed in liquid, then remaining test operation step is identical with the operating procedure of gaseous plasma test.
After plasma discharge testing experiment finishes, to its flash-over characteristic data analysis, research discharge parameter (voltage, power, frequency) is on producing the impact of gas-liquid two-phase dielectric barrier discharge plasma.
More than show and described general principle of the present invention, principal character and advantage of the present invention. The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and description, describes just illustrates principle of the present invention; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall within the scope of claimed invention. The claimed scope of the present invention is defined by appending claims and equivalent.
Claims (10)
1. a polymer surface modification gas-liquid two-phase plasma generating device, comprise casing, the Si Ge angle, lower surface of described bottom half is fixedly connected with four post legs, it is characterized in that: described box house bottom surface is provided with the tank of contain fluid, described box house is fixedly connected with fixed polar plate parts on side, fixed polar plate parts are positioned at the top of tank, the top of described casing is fixedly connected with movable polar plate parts, movable polar plate parts are positioned at the top of fixed polar plate parts, and movable polar plate parts and fixed polar plate parts are oppositely arranged up and down;
Described movable polar plate parts comprise insulated connecting rod, screw rod, top crown, adjust handwheel, limit shaft, traveling nut, instruction connecting rod, limiting plate, described insulated connecting rod vertically arranges, lower end and the top crown of insulated connecting rod removably connect, screw rod is positioned at the top of vertical insulated connecting rod, and the lower end of screw rod is connected by traveling nut with the upper end of insulated connecting rod, the upper end of screw rod is arranged on the upper surface of casing, the end, upper end of screw rod is fixedly connected with adjustment handwheel, described limit shaft is vertically through insulated connecting rod setting, the left end of limit shaft and vertical being fixedly connected with in lower end of indicating connecting rod, the upper end of instruction connecting rod is arranged on the upper surface of casing, vertical being slidably connected of lower end vertical plate of the right-hand member of limit shaft and limiting plate, the upper end level board of limiting plate is fixedly connected with the side of casing,
Described fixed polar plate parts comprise bottom crown, fixed support, described fixed support comprises the first horizon bar, the first vertical rod, the second horizon bar, the upper end of the first vertical rod is fixedly connected with one end of the first horizon bar, the other end of the first horizon bar is fixedly connected with the side of casing, the lower end of the first vertical rod is fixedly connected with one end of the second horizon bar, and the other end and the bottom crown of the second horizon bar removably connect; Top crown is parallel with bottom crown to be oppositely arranged, and is provided with spacing between top crown and bottom crown;
The top of described casing is provided with pore, air admission hole, aspirating hole, the top of described casing is fixedly connected with dial indicator bracket, on dial indicator bracket, be fixedly connected with digital dial gauge, and the pointer of digital dial gauge contacts with the end, upper end of instruction connecting rod, and the side of described casing is provided with positive electrode joint, negative electrode connector.
2. polymer surface modification gas-liquid two-phase plasma generating device according to claim 1, is characterized in that: between the bottom of described tank and the upper surface of bottom half, be provided with tank backing plate.
3. polymer surface modification gas-liquid two-phase plasma generating device according to claim 1, is characterized in that: the center line of described screw rod, insulated connecting rod, top crown, bottom crown is all on same straight line.
4. polymer surface modification gas-liquid two-phase plasma generating device according to claim 1, it is characterized in that: between described fixed support and casing, be provided with link, and link is inverted "L" shaped, the horizontal segment of link is fixedly connected with support bracket fastened the first horizon bar, and the vertical section of link is fixedly connected with the side of box house.
5. polymer surface modification gas-liquid two-phase plasma generating device according to claim 1, it is characterized in that: described limiting plate is inverted "L" shaped structure, and the vertical plate of the inverted "L" shaped structure of limiting plate is fixedly connected with limit shaft, the level board of the inverted "L" shaped structure of limiting plate is fixedly connected with the upper surface of box house.
6. polymer surface modification gas-liquid two-phase plasma generating device according to claim 1, is characterized in that: the side of described casing is provided with observation window, described observation window is provided with quartz glass.
7. polymer surface modification gas-liquid two-phase plasma generating device according to claim 1, is characterized in that: the quantity of described limit shaft is two.
8. polymer surface modification gas-liquid two-phase plasma generating device according to claim 1, it is characterized in that: the side of described casing is provided with the access door of being convenient to equipment inspection, and access door is in the time of closed condition, and between access door and casing, sealing arranges.
9. polymer surface modification gas-liquid two-phase plasma generating device according to claim 1, it is characterized in that: the side of described traveling nut is provided with vertical opening, and the lower end of opening communicates with the lower surface of traveling nut, the upper end of opening and the upper surface of traveling nut are provided with spacing.
10. polymer surface modification gas-liquid two-phase plasma generating device according to claim 9, is characterized in that: on described screw rod, be arranged with spring, and spring is between the upper surface and traveling nut of casing.
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| CN201510995200.XA CN105611711B (en) | 2015-12-24 | 2015-12-24 | A kind of polymer surface modification gas-liquid two-phase plasma generating device |
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| CN201510995200.XA CN105611711B (en) | 2015-12-24 | 2015-12-24 | A kind of polymer surface modification gas-liquid two-phase plasma generating device |
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| CN105611711A true CN105611711A (en) | 2016-05-25 |
| CN105611711B CN105611711B (en) | 2017-10-20 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108135067A (en) * | 2018-01-19 | 2018-06-08 | 河海大学常州校区 | Water fog medium barrier discharge plasma and surface processing device |
| CN109195297A (en) * | 2018-10-23 | 2019-01-11 | 山东大学 | It is a kind of can fine adjustment dielectric barrier discharge device and method |
| CN109553066A (en) * | 2018-11-20 | 2019-04-02 | 上海交通大学 | A kind of method of nano material plasma surface transformation |
| CN111787681A (en) * | 2020-07-16 | 2020-10-16 | 上海大学 | Electrode, electrode preparation method and liquid phase discharge plasma device |
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| CN109553066A (en) * | 2018-11-20 | 2019-04-02 | 上海交通大学 | A kind of method of nano material plasma surface transformation |
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| CN111787681A (en) * | 2020-07-16 | 2020-10-16 | 上海大学 | Electrode, electrode preparation method and liquid phase discharge plasma device |
| CN111787681B (en) * | 2020-07-16 | 2021-06-22 | 上海大学 | Electrode, electrode preparation method and liquid phase discharge plasma device |
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Granted publication date: 20171020 Termination date: 20211224 |