WO2022114504A1 - 평판형 필터 전극을 이용한 분말 표면처리용 플라즈마 장치 - Google Patents
평판형 필터 전극을 이용한 분말 표면처리용 플라즈마 장치 Download PDFInfo
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- WO2022114504A1 WO2022114504A1 PCT/KR2021/013691 KR2021013691W WO2022114504A1 WO 2022114504 A1 WO2022114504 A1 WO 2022114504A1 KR 2021013691 W KR2021013691 W KR 2021013691W WO 2022114504 A1 WO2022114504 A1 WO 2022114504A1
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- filter
- powder
- electrode
- filter electrode
- surface treatment
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- 239000000843 powder Substances 0.000 title claims abstract description 172
- 238000004381 surface treatment Methods 0.000 title claims description 57
- 238000001179 sorption measurement Methods 0.000 claims abstract description 36
- 238000000034 method Methods 0.000 claims description 33
- 230000035939 shock Effects 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
- 239000011858 nanopowder Substances 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000009832 plasma treatment Methods 0.000 description 3
- 238000009700 powder processing Methods 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 2
- 239000002041 carbon nanotube Substances 0.000 description 2
- 229910021393 carbon nanotube Inorganic materials 0.000 description 2
- 238000007306 functionalization reaction Methods 0.000 description 2
- 229910021389 graphene Inorganic materials 0.000 description 2
- 238000010297 mechanical methods and process Methods 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000005596 ionic collisions Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 239000007921 spray Substances 0.000 description 1
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- 239000002351 wastewater Substances 0.000 description 1
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Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J19/087—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy
- B01J19/088—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J19/10—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing sonic or ultrasonic vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J19/12—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electromagnetic waves
- B01J19/122—Incoherent waves
- B01J19/129—Radiofrequency
-
- 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
- H05H1/46—Generating plasma using applied electromagnetic fields, e.g. high frequency or microwave energy
-
- 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
- H05H1/46—Generating plasma using applied electromagnetic fields, e.g. high frequency or microwave energy
- H05H1/4645—Radiofrequency discharges
- H05H1/466—Radiofrequency discharges using capacitive coupling means, e.g. electrodes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00274—Sequential or parallel reactions; Apparatus and devices for combinatorial chemistry or for making arrays; Chemical library technology
- B01J2219/00583—Features relative to the processes being carried out
- B01J2219/00603—Making arrays on substantially continuous surfaces
- B01J2219/00605—Making arrays on substantially continuous surfaces the compounds being directly bound or immobilised to solid supports
- B01J2219/00632—Introduction of reactive groups to the surface
- B01J2219/00635—Introduction of reactive groups to the surface by reactive plasma treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J2219/0803—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy
- B01J2219/0805—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges
- B01J2219/0807—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges involving electrodes
- B01J2219/0824—Details relating to the shape of the electrodes
- B01J2219/0835—Details relating to the shape of the electrodes substantially flat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J2219/0894—Processes carried out in the presence of a plasma
Definitions
- the present invention relates to a plasma apparatus for surface treatment of powder using a plate-type filter electrode, and more particularly, by dispersing and adsorbing nano- or micro-sized powder on a porous, plate-shaped filter electrode, the surface can be treated more uniformly. It relates to a plasma device for powder surface treatment.
- carbon nanopowder materials such as carbon nanotubes and graphene are prone to mutual aggregation despite their excellent physical properties.
- the conventional dispersion technique may be divided into a mechanical method such as milling, a wet method using a chemical reaction, and a dry method using plasma.
- the dry plasma method is a preferred method in consideration of mass productivity and environmental friendliness, but a device such as rotation and stirring is essential to uniformly mix carbon nanopowders in order to perform plasma surface treatment on carbon nanopowders, As the size of the powder decreases, it is very difficult to uniformly treat the surface, the functionalization efficiency is low, and the processing time is long.
- a plasma apparatus for powder surface treatment using a plate-type filter electrode comprising: a chamber for forming a space in which plasma is generated; a filter electrode installed inside the chamber, formed to have a flat plate shape and a porous structure, and to generate plasma when power is applied to surface-treat and functionalize the powder; adsorption means for reducing the internal pressure of the filter electrode to adsorb the powder to the surface of the filter electrode; and a vibration generator provided in any one of the chamber and the filter electrode, and applying vibration to the filter electrode in at least one of a vertical direction and a horizontal direction to disperse the powder on the surface of the filter electrode.
- a plurality of the filter electrodes are stacked so as to have spaced apart spaces from each other, and are arranged in each of the spaced spaces to supply the powder to the spaced space so that the powder is adsorbed on the upper and lower surfaces of the filter electrodes to generate a powder injector.
- a plurality of the filter electrodes are stacked so as to have a space apart from each other, and are provided to be movable along the space, so that the powder is adsorbed on the upper and lower surfaces of the filter electrodes continuously for each space.
- By supplying it further includes a powder injector.
- a rack formed to be fitted with the plurality of filter electrodes, and a shock absorbing member provided between the rack and the filter electrode to absorb shock when the filter electrode vibrates.
- the adsorption means includes a vacuum pump that sucks air from each lower portion of the plurality of filter electrodes to form each interior of the filter electrodes in a vacuum state, and a vacuum connecting the vacuum pump and each lower portion of the plurality of filter electrodes includes euros.
- the adsorption means includes a vacuum pump that sucks the air inside the filter electrode and forms the inside of the filter electrode in a vacuum state.
- the filter electrode is formed between an upper filter part having an upper surface and formed in a porous structure, a lower filter part having a lower surface and formed in a porous structure, and formed between the upper filter part and the lower surface filter part to be vacuumed by the vacuum pump. It includes a vacuum part to be in a state.
- the filter electrodes are arranged in a vertical direction so that a plurality of the filter electrodes have spaced apart spaces from each other, and further include a powder injector for supplying the powder to the spaced space between the plurality of filter electrodes.
- the vibration generator includes an acoustic vibration module that generates sound and resonates to apply acoustic vibration.
- the vibration generator includes an ultrasonic vibrator for applying vibration by generating ultrasonic waves.
- the powder includes nano or micro-sized powder.
- a plasma apparatus for powder surface treatment using a plate-type filter electrode comprising: a chamber for forming a space in which plasma is generated; a filter electrode installed inside the chamber, formed to have a flat plate shape and a porous structure, and to generate plasma when power is applied to surface-treat and functionalize the powder; an adsorption means for reducing the internal pressure of the filter electrode to adsorb the powder to the surface of the filter electrode; provided in any one of the chamber and the filter electrode, to the filter electrode in at least one of a vertical direction and a horizontal direction and a vibration generator for dispersing the powder on the surface of the filter electrode by applying vibration to a vacuum pump for sucking the internal air of the filter electrodes to form a vacuum state inside each of the filter electrodes, and a vacuum flow path connecting the vacuum pump and the plurality of filter electrodes, wherein the vibration generator is provided to each It is provided and includes an ultrasonic vibrator vibrating by generating ultrasonic waves.
- the powder includes nano or micro-sized powder.
- a plasma apparatus for powder surface treatment using a plate-type filter electrode comprising: a chamber for forming a space in which plasma is generated; a filter electrode installed inside the chamber, formed to have a flat plate shape and a porous structure, and to generate plasma when power is applied to surface-treat and functionalize the powder; adsorption means for reducing the internal pressure of the filter electrode to adsorb the powder to the surface of the filter electrode; a vibration generator provided in any one of the chamber and the filter electrode and applying vibration to the filter electrode in at least one of a vertical direction and a horizontal direction to disperse the powder on the surface of the filter electrode; A plurality of silvers are stacked so as to have a space apart from each other, and the adsorption means is provided in the chamber to suck the internal air of the plurality of filter electrodes to form a vacuum state inside each of the filter electrodes. a pump, and a vacuum passage connecting the vacuum pump and the plurality of filter electrodes, where
- the powder includes nano or micro-sized powder.
- a plasma apparatus for surface treatment of powder using a plate-type filter electrode is formed to have a flat plate shape and a porous structure, and generates plasma when power is applied to surface-treat nano- or micro-sized powder a filter electrode for functionalization; a vibration generator for vibration-dispersing the powder on a surface of the filter electrode by applying vibration to the filter electrode; and an adsorption means for adsorbing the powder to the surface of the filter electrode by reducing the internal pressure of the filter electrode so as to prevent the vibration-dispersed powder from being separated from the filter electrode to the outside.
- the vibration generator includes at least one of an ultrasonic vibrator that generates ultrasonic waves to apply vibration, and an acoustic vibration module that generates sound and resonates to apply acoustic vibrations.
- the adsorption means includes a vacuum pump that sucks the air inside the filter electrode and forms the inside of the filter electrode in a vacuum state.
- a plurality of the filter electrodes are stacked so as to have a space apart from each other.
- a plasma apparatus for surface treatment of powder using a flat filter electrode comprises: a filter electrode formed of a flat plate having a porous structure, generating plasma when power is applied to surface-treat and functionalize the powder; a ground electrode stacked vertically spaced apart from the filter electrode, formed in a flat plate to correspond to the filter electrode, and grounded; and an adsorption means for reducing the internal pressure of any one of the filter electrode and the ground electrode to adsorb the powder to the surface of any one of the filter electrode and the ground electrode.
- a plurality of the filter electrodes are stacked so as to have a space apart from each other, and a plurality of the ground electrodes are alternately stacked with the filter electrodes.
- the filter electrode and the ground electrode By applying vibration to any one of the filter electrode and the ground electrode, it further includes a vibration generator for vibration-dispersing the powder on one surface of the filter electrode and the ground electrode.
- the vibration generator includes at least one of an ultrasonic vibrator that generates ultrasonic waves to apply vibration, and an acoustic vibration module that generates sound and resonates to apply acoustic vibrations.
- the adsorption means includes a vacuum pump that sucks the internal air of any one of the filter electrode and the ground electrode to form the inside in a vacuum state.
- the processing capacity that can be processed at once can be maximized, and thus processing efficiency can be improved.
- the powder can be evenly dispersed and mixed on the surface of the filter electrode, so that the powders are evenly surface treated can do.
- FIG. 1 is a block diagram schematically showing a plasma apparatus for powder surface treatment using a plate-type filter electrode according to a first embodiment of the present invention.
- FIG. 2 is a side view illustrating the plate-type filter electrode shown in FIG. 1 .
- FIG. 3 is a perspective view illustrating the plate-type filter electrode shown in FIG. 1 .
- FIG. 4 is a cross-sectional view showing a filter electrode according to a second embodiment of the present invention.
- FIG. 5 is a diagram schematically showing a plasma apparatus for powder surface treatment using a plate-type filter electrode according to a third embodiment of the present invention.
- FIG. 6 is a diagram schematically showing a plasma apparatus for powder surface treatment using a plate-type filter electrode according to a fourth embodiment of the present invention.
- FIG. 7 is a view schematically showing a plasma apparatus for powder surface treatment using a plate-type filter electrode according to a fifth embodiment of the present invention.
- FIG. 8 is a diagram schematically showing a plasma apparatus for powder surface treatment using a plate-type filter electrode according to a sixth embodiment of the present invention.
- FIG. 9 is a diagram schematically showing a plasma apparatus for powder surface treatment using a plate-type filter electrode according to a seventh embodiment of the present invention.
- FIG. 1 is a block diagram schematically showing a plasma apparatus for powder surface treatment using a plate-type filter electrode according to an embodiment of the present invention.
- FIG. 2 is a side view illustrating the plate-type filter electrode shown in FIG. 1 .
- FIG. 3 is a perspective view illustrating the plate-type filter electrode shown in FIG. 1 .
- the plasma apparatus for powder surface treatment using a plate-type filter electrode includes a chamber 10, a filter electrode 20, an adsorption means 30, and a vibration generator.
- the chamber 10 forms a space in which the plurality of filter electrodes 20 are accommodated and plasma is generated therein.
- a power supply (not shown) and a gas supply unit (not shown) for supplying external gas are connected to the chamber 10 .
- the chamber 10 is grounded and serves as a ground electrode.
- a rack 25 into which the plurality of filter electrodes 20 are fitted is provided inside the chamber 10 .
- the present invention is not limited thereto, and it is of course possible to stack the plurality of filter electrodes 20 in a vertical direction spaced apart from each other by a predetermined distance without using the rack 25 .
- the rack 25 may be fixedly installed inside the chamber 10, and is installed to be withdrawable from the chamber 10 so that the plurality of filter electrodes 20 are inserted and then reintroduced. It is possible.
- the filter electrode 20 is a power electrode to which power is applied from the power supply device (not shown).
- the filter electrode 20 is formed into a plasma inside the chamber 10 .
- RF radio frequency
- one filter electrode 20 is used and a high-frequency power source is applied to the filter electrode 20 as an example.
- the present invention is not limited thereto, and AC plasma discharge or DC plasma discharge is also possible, and the filter electrode 20 is a first electrode and a configuration including a second electrode having a potential difference with the first electrode is also possible, It is also possible to use as a second electrode by grounding. In the case of AC plasma discharge, each electrode is covered with a dielectric.
- the plasma generated from the filter electrode 20 makes the powder functionalized by surface treatment.
- Surface functionalization of the powder disperses the powders without agglomeration without deterioration of existing physical properties, but the interfacial bonding force between the powder and other dissimilar materials can be improved.
- the filter electrode 20 is formed in a flat plate shape so that the powder is placed on the upper surface.
- the filter electrode 20 is, for example, described as having a rectangular plate shape, but is not limited thereto, and it is of course possible to have a disc shape.
- a plurality of the filter electrodes 20 are stacked so as to have a space apart from each other in the vertical or horizontal direction.
- the plurality of filter electrodes 20 will be described as an example that 10 of the plurality of filter electrodes 20 are vertically spaced apart from each other in the rack 25 .
- the number of stacks of the filter electrodes 20 can be adjusted according to the processing capacity.
- the filter electrode 20 is formed to have a porous structure, respectively.
- the filter electrode 20 includes a filter part 20a formed of a porous body or a porous mesh, and a vacuum part 20b formed under the filter part 20a and brought into a vacuum state by a vacuum pump 32 to be described later. includes Of course, the filter electrode 20 may be formed so that only the upper surface has a porous structure.
- the filter unit 20a is processed to a nano or micro unit size, and it is preferable that pores are formed smaller than the size of the powder or a nano nonwoven fabric is provided to prevent the powder from passing through.
- the adsorption means 30 is a device for reducing the internal pressure of the filter electrode 20 to adsorb the powder on the surface of the filter electrode 20 .
- the adsorption means 30 includes a vacuum pump 32 , a vacuum flow path 33 , and a powder blocking unit (not shown) for filtering powder.
- the vacuum pump 32 is installed outside the chamber 10, sucks air from the inside of the plurality of filter electrodes 20, and turns the inside of the plurality of filter electrodes 20 into a vacuum state. to form
- the vacuum flow path 33 is a flow path connecting the vacuum pump 32 and the lower portions of the plurality of filter electrodes 20 .
- One end of the vacuum passage 33 is connected to the lower portions of the plurality of filter electrodes 20 , and the other end is connected to the vacuum pump 32 .
- the vacuum flow path 33 is connected to the vacuum part 20b of the filter electrode 20 .
- the present invention is not limited thereto, and the vacuum pump 32 may be installed in each lower portion of the filter electrode 20 , and may of course be installed in the rack 25 .
- the vibration generator applies vibration to the filter electrode 20 in at least one of a vertical direction and a horizontal direction to disperse the powder on the surface of the filter electrode 20 . That is, the vibration generator disperses the powder by generating vibration such as an effect of tapping the lower portion of the filter electrode 20 .
- the vibration generator may use an acoustic vibration module (not shown) or an ultrasonic vibrator 40 .
- the acoustic vibration module (not shown) is an acoustic resonance vibrator that generates and resonates sound to generate acoustic vibration in the filter electrode 20 .
- the acoustic vibration module may be mounted on the filter electrode 20 or may be installed on the rack 25 .
- the ultrasonic vibrator is used as an example.
- the ultrasonic vibrator 40 is provided on the filter electrode 20, respectively, and generates an ultrasonic wave with power applied from the power supply device (not shown) to generate vibration.
- the ultrasonic vibrator 40 will be described as an example mounted on each lower portion of the filter electrode 20 .
- a plurality of the ultrasonic vibrator 40 may be mounted to be spaced apart from each other by a predetermined distance.
- the ultrasonic vibrator 40 will be described as an example in which three are provided on the lower central side of the filter electrode 20 .
- the ultrasonic vibrator 40 applies vibration to the lower central side of the filter electrode 20 to disperse the powder on the surface of the filter electrode 20 from the center to the edges.
- the ultrasonic vibrator 40 is attached to the lower surface of the vacuum part 20b of the filter electrode 20 as an example, but it is not limited thereto and the ultrasonic vibrator 40 is the filter electrode It is of course also possible to be installed to be spaced apart from (20) by a predetermined interval.
- the ultrasonic vibrator 40 is installed in the rack 25 , it is of course possible to apply vibration to the rack 25 to vibrate the plurality of filter electrodes 20 .
- the powder includes nano- or micro-sized powders such as carbon nanotubes and graphene.
- the filter electrodes 20 After putting powder on each of the upper surfaces of the plurality of filter electrodes 20 , the filter electrodes 20 are inserted into the rack 25 to be stacked.
- the plurality of filter electrodes 20 are sandwiched between the rack 25 and the plurality of filter electrodes 20 are stacked for example, but the present invention is not limited thereto, and the plurality of filters without using the rack 25 . It is of course also possible to stack the electrodes 20 to be spaced apart from each other by a predetermined distance.
- the present invention is not limited to the above embodiment, and it is of course possible to supply powder to the plurality of filter electrodes 20 mounted in the chamber 10 .
- the powder When the inside of the vacuum part 20b of the filter electrodes 20 is in a vacuum state, the powder is adsorbed to the surfaces of the filter electrodes 20 . That is, the adsorption force A acts on the powders in a direction toward the surface of the filter electrodes 20 .
- vibration is applied to the filter electrodes 20 by the ultrasonic vibrator 40 .
- a dispersion force B acts on the powders in a bouncing direction from the surface of the filter electrode 20 .
- the adsorption force (A) and the dispersion force (B) can be adjusted according to the suction force of the vacuum pump 30 and the vibration strength of the ultrasonic vibrator 40 .
- the adsorption force (A) and the dispersing force (B) can be optimally calculated by experiments or the like.
- the surface treatment process by the plasma may be performed for a preset time. When the set time elapses, the plasma treatment is stopped and the powder is collected.
- powders are adsorbed and dispersed on the surfaces of the plurality of filter electrodes 20 and then surface-treated by plasma.
- the powders can move to each other without flying from the surface of the filter electrode 20 , so that the entire powder is evenly treated with plasma is possible
- the powder can be evenly mixed and dispersed, so that a uniform surface treatment is possible.
- FIG. 4 is a cross-sectional view showing a filter electrode according to a second embodiment of the present invention.
- the filter electrode 220 includes an upper filter unit 220a, a lower filter unit 220b and a vacuum unit 220c. is different from, and the rest of the configurations and actions are similar, so that the description will be focused on the different configurations and detailed descriptions of the similar configurations will be omitted.
- the filter electrode 220 is formed to have a porous structure, and a plurality of the filter electrodes 220 are stacked to have a space apart from each other in the vertical direction.
- the upper filter part 220a and the lower filter part 220b are formed of a porous body or a porous mesh.
- the upper filter part 220a and the lower filter part 220b are processed to a nano or micro unit size, and the pores are formed smaller than the size of the powder or are formed to prevent the powder from passing by providing a nano nonwoven fabric desirable.
- the vacuum unit 220c is formed between the upper filter unit 220a and the lower filter unit 220b, and is in a vacuum state by the vacuum pump 32 .
- a vacuum flow path 33 is connected to the vacuum part 220c.
- the vacuum pump 32 When the vacuum pump 32 is operated, the vacuum pump 32 sucks the internal air of the vacuum part 220c so that the inside of the vacuum part 220c is in a vacuum state.
- the powder supplied to the inside of the chamber 10 or around the filter electrode 220 is transferred to the upper filter part 220a and the lower filter part 220b. can be adsorbed on the surface of
- the plasma treatment capacity can be increased.
- FIG. 5 is a diagram schematically showing a plasma apparatus for powder surface treatment using a plate-type filter electrode according to a third embodiment of the present invention.
- a plasma apparatus for powder processing using a plate-type filter electrode includes a chamber 310 , a filter electrode 320 , an adsorption means 330 , and a vibration generator.
- the vibration generator is different from the first embodiment in that the acoustic vibration module 355 is different from the first embodiment, and the rest of the configuration and operation are similar.
- the acoustic vibration module 355 is an acoustic resonance vibrator that generates and resonates sound to generate acoustic vibration in the filter electrode 320 .
- An upper portion of the acoustic vibration module 355 is connected to the filter electrode 320 by a connecting member 352 .
- one filter electrode 320 is disposed, but the present invention is not limited thereto, and a plurality of the filter electrodes 320 may be disposed to be spaced apart from each other by a predetermined distance in the vertical or horizontal direction. have.
- a vacuum flow path 333 connected to a vacuum pump (not shown) is connected to the inside of the filter electrode 320 .
- a rack is provided inside the chamber so that the filter electrode 320 is inserted therein, and a rack is provided between the rack and the filter electrode 320 to absorb shock when the filter electrode 320 vibrates.
- a shock absorbing member (not shown) may be provided.
- FIG. 6 is a diagram schematically showing a plasma apparatus for powder surface treatment using a plate-type filter electrode according to a fourth embodiment of the present invention.
- a plurality of filter electrodes 420 are vertically spaced apart from each other at predetermined intervals, and the filter electrodes are 420 is different from the third embodiment in that it includes an upper filter unit 420a, a lower filter unit 420b, and a vacuum unit 420c, respectively, and the rest of the configuration and operation are similar, so focus on the different configurations and a detailed description of similar configurations will be omitted.
- a plurality of the filter electrodes 420 are stacked so as to have a space apart from each other in the vertical direction.
- the number of stacks of the filter electrodes 420 can be adjusted according to the processing capacity.
- the upper filter unit 420a and the lower filter unit 420b are formed of a porous body or a porous mesh.
- the upper filter unit 420a and the lower filter unit 420b are machined in nano or micro unit size, and pores are formed smaller than the size of the powder to prevent the powder from passing through.
- the vacuum part 420c is formed between the upper filter part 420a and the lower surface filter part 420b, and is in a vacuum state by the vacuum pump 432 .
- a vacuum flow path 433 is connected to the vacuum part 420c.
- the vacuum pump 432 When the vacuum pump 432 is operated, the vacuum pump 432 sucks the internal air of the vacuum part 420c, so that the inside of the vacuum part 420c is in a vacuum state.
- the powder supplied to the inside of the chamber 310 or around the filter electrode 420 is transferred to the upper filter unit 420a and the lower filter unit 420b. can be adsorbed on the surface of
- the plasma treatment capacity can be increased.
- the vacuum part 420c of the plurality of filter electrodes 420 has been described as being in a vacuum state by one vacuum pump 432, but the present invention is not limited thereto, and the plurality of filters It is of course possible that a vacuum passage and a vacuum pump are respectively connected to each of the vacuum units 420c of the electrodes 420 .
- a powder sprayer (not shown) for spraying and supplying powder is provided in the space between the plurality of filter electrodes 420 .
- the powder injector (not shown) is disposed for each spaced space between the plurality of filter electrodes 420, and it is also possible to collectively inject the powder into the spaced space, and one powder injector (not shown) moves in the vertical direction. It is of course also possible to continuously spray each spaced space between the filter electrodes 420 while being installed to be movable. In addition, the powder injector (not shown) may of course inject the powder into the chamber 310 .
- FIG. 7 is a view schematically showing a plasma apparatus for powder surface treatment using a plate-type filter electrode according to a fifth embodiment of the present invention.
- the filter electrode 520 and the ground electrode 530 are disposed to be spaced apart from each other in the vertical direction.
- the point in which the powder is supplied between the filter electrode 520 and the ground electrode 530 is different from the first embodiment, and the rest of the configuration and operation are similar, and thus the different points will be described in detail.
- the filter electrode 520 is formed in a flat plate shape having a porous structure, and generates plasma when power is applied to surface-treat the powder to make it functional.
- the power source any one of RF, AC, and DC pluse plasma power may be used. In this embodiment, it will be described as an example that RF power is applied.
- the filter electrode 520 includes a filter unit 520a formed of a porous material or a porous mesh, and a vacuum unit 520b formed under the filter unit 520a and brought into a vacuum state by a vacuum pump to be described later.
- the filter electrode 520 may be formed such that only the upper surface has a porous structure.
- a separation space is formed between the filter electrode 520 and the ground electrode 530 .
- the ground electrode 530 is formed in a flat plate shape to correspond to the filter electrode 520 .
- the ground electrode 530 may have a porous structure or may be formed in a general flat plate shape.
- the adsorption means is provided under the filter electrode 520 .
- the adsorption means further includes a vacuum passage 540 connected to the vacuum part 520b of the filter electrode 520 and a vacuum pump (not shown) connected to the vacuum passage 540 .
- a vibration generator (not shown) for vibration-dispersing the powder is provided under each of the filter electrode 520 and the ground electrode 530 .
- the vibration generator (not shown) may use an ultrasonic vibrator, an acoustic vibration module, or the like.
- FIG. 8 is a diagram schematically showing a plasma apparatus for powder surface treatment using a plate-type filter electrode according to a sixth embodiment of the present invention.
- the filter electrode 620 and the ground electrode 630 are disposed to be spaced apart from each other in the vertical direction. It is different from the fifth embodiment in that the suction means is provided under the ground electrode 630 , and the rest of the configuration and operation are similar.
- the filter electrode 620 is formed in a flat plate shape having a porous structure, and generates plasma when power is applied to surface-treat the powder to make it functional.
- the power source any one of RF, AC, and DC pluse plasma power may be used. In this embodiment, it will be described as an example that RF power is applied.
- a separation space is formed between the filter electrode 620 and the ground electrode 630 .
- the ground electrode 630 is formed in a flat plate shape to correspond to the filter electrode 620 .
- the ground electrode 630 will be described as an example having a porous structure.
- the ground electrode 630 includes a porous part 630a formed of a porous body or a porous mesh, and a vacuum part 630b formed under the porous part 630a and brought into a vacuum state by a vacuum pump to be described later.
- the ground electrode 630 may be formed so that only the upper surface has a porous structure.
- the adsorption means is provided under the ground electrode 630 .
- the adsorption means further includes a vacuum passage 640 connected to the vacuum 630b of the ground electrode 630 and a vacuum pump (not shown) connected to the vacuum passage 640 .
- a vibration generator (not shown) for vibration-dispersing the powder is provided under the ground electrode 630 .
- the vibration generator (not shown) may use an ultrasonic vibrator, an acoustic vibration module, or the like.
- FIG. 9 is a diagram schematically showing a plasma apparatus for powder surface treatment using a plate-type filter electrode according to a seventh embodiment of the present invention.
- a plurality of filter electrodes 720 are stacked and disposed to be spaced apart from each other in the vertical direction, and the plurality of ground electrodes 730 are formed in the filter. It is different from the fifth embodiment in that the electrodes 720 and the electrodes 720 are alternately stacked and disposed, and the rest of the configuration and operation are similar. .
- any one of RF, AC, and DC pluse plasma power may be used. In this embodiment, it will be described as an example that RF power is applied.
- the plasma density may be relatively reduced compared to the case of using a single ground electrode.
- the ion collision effect may be further improved.
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Abstract
Description
Claims (24)
- 플라즈마가 생성되는 공간을 형성하는 챔버와;상기 챔버의 내부에 설치되고, 평판 형상이고 다공성 구조를 가지도록 형성되며, 전원 인가시 플라즈마를 생성하여 분말을 표면처리하여 기능화시키는 필터 전극과;상기 필터 전극의 내부 압력을 감소시켜, 상기 필터 전극의 표면에 상기 분말을 흡착시키는 흡착수단과;상기 챔버와 상기 필터 전극 중 어느 하나에 구비되고, 상기 필터 전극에 상하방향과 수평방향 중 적어도 일방향으로 진동을 가하여, 상기 필터 전극의 표면에서 상기 분말을 분산시키는 진동 발생기를 포함하는 평판형 필터 전극을 이용한 분말 표면처리용 플라즈마 장치.
- 청구항 1에 있어서,상기 필터 전극은, 복수개가 서로 이격공간을 가지도록 적층되어 배치되고,상기 이격공간마다 배치되어, 상기 필터 전극들의 상,하면에 상기 분말이 흡착되도록 상기 이격공간으로 상기 분말을 공급하여 분말 분사기를 더 포함하는 평판형 필터 전극을 이용한 분말 표면처리용 플라즈마 장치.
- 청구항 1에 있어서,상기 필터 전극은, 복수개가 서로 이격공간을 가지도록 적층되어 배치되고,상기 이격공간을 따라 이동가능하게 구비되어, 상기 필터 전극들의 상,하면에 상기 분말이 흡착되도록 상기 이격공간마다 연속적으로 상기 분말을 공급하여 분말 분사기를 더 포함하는 평판형 필터 전극을 이용한 분말 표면처리용 플라즈마 장치.
- 청구항 1에 있어서,상기 챔버의 내부에 구비되어 상기 복수의 필터 전극들이 끼워지도록 형성된 랙(Rack)과,상기 랙과 상기 필터 전극 사이에 구비되어, 상기 필터 전극의 진동시 충격을 흡수하는 충격흡수부재를 더 포함하는 평판형 필터 전극을 이용한 분말 표면처리용 플라즈마 장치.
- 청구항 2에 있어서,상기 흡착수단은,상기 복수의 필터 전극들의 각 하부로부터 공기를 흡입하여 상기 필터 전극들의 각 내부를 진공 상태로 형성하는 진공 펌프와,상기 진공 펌프와 상기 복수의 필터 전극들의 각 하부를 연결하는 진공 유로를 포함하는 평판형 필터 전극을 이용한 분말 표면처리용 플라즈마 장치.
- 청구항 1에 있어서,상기 흡착수단은,상기 필터 전극의 내부 공기를 흡입하여 상기 필터 전극의 내부를 진공 상태로 형성하는 진공 펌프를 포함하는 평판형 필터 전극을 이용한 분말 표면처리용 플라즈마 장치.
- 청구항 6에 있어서,상기 필터 전극은,상면을 형성하고 다공성 구조로 형성된 상면 필터부와, 하면을 형성하고 다공성 구조로 형성된 하면 필터부와, 상기 상면 필터부와 상기 하면 필터부 사이에 형성되어 상기 진공 펌프에 의해 진공 상태가 되는 진공부를 포함하는 평판형 필터 전극을 이용한 분말 표면처리용 플라즈마 장치.
- 청구항 7에 있어서,상기 필터 전극은, 복수개가 서로 이격공간을 가지도록 상하방향으로 적층되어 배치되고,상기 복수의 필터 전극들 사이의 이격공간으로 상기 분말을 공급하는 분말 분사기를 더 포함하는 평판형 필터 전극을 이용한 분말 표면처리용 플라즈마 장치.
- 청구항 1에 있어서,상기 진동 발생기는,음향을 발생시키고 공명시켜 음향 진동을 가하는 음향 진동 모듈을 포함하는 평판형 필터 전극을 이용한 분말 표면처리용 플라즈마 장치.
- 청구항 1에 있어서,상기 진동 발생기는,초음파를 발생시켜 진동을 가하는 초음파 진동자를 포함하는 평판형 필터 전극을 이용한 분말 표면처리용 플라즈마 장치.
- 청구항 1에 있어서,상기 분말은, 나노 또는 마이크로 크기의 분말을 포함하는 평판형 필터 전극을 이용한 분말 표면처리용 플라즈마 장치.
- 플라즈마가 생성되는 공간을 형성하는 챔버와;상기 챔버의 내부에 설치되고, 평판 형상이고 다공성 구조를 가지도록 형성되며, 전원 인가시 플라즈마를 생성하여 분말을 표면처리하여 기능화시키는 필터 전극과;상기 필터 전극의 내부 압력을 감소시켜, 상기 필터 전극의 표면에 상기 분말을 흡착시키는 흡착수단과;상기 챔버와 상기 필터 전극 중 어느 하나에 구비되고, 상기 필터 전극에 상하방향과 수평방향 중 적어도 일방향으로 진동을 가하여, 상기 필터 전극의 표면에서 상기 분말을 분산시키는 진동 발생기를 포함하고,상기 필터 전극은, 복수개가 서로 이격공간을 가지도록 적층되어 배치되고,상기 흡착수단은,상기 복수의 필터 전극들의 내부 공기를 흡입하여 상기 필터 전극들의 각 내부를 진공 상태로 형성하는 진공 펌프와, 상기 진공 펌프와 상기 복수의 필터 전극들을 연결하는 진공 유로를 포함하고,상기 진동 발생기는,상기 필터 전극에 각각 구비되어, 초음파를 발생시켜 진동하는 초음파 진동자를 포함하는 평판형 필터 전극을 이용한 분말 표면처리용 플라즈마 장치.
- 청구항 12에 있어서,상기 분말은, 나노 또는 마이크로 크기의 분말을 포함하는 평판형 필터 전극을 이용한 분말 표면처리용 플라즈마 장치.
- 플라즈마가 생성되는 공간을 형성하는 챔버와;상기 챔버의 내부에 설치되고, 평판 형상이고 다공성 구조를 가지도록 형성되며, 전원 인가시 플라즈마를 생성하여 분말을 표면처리하여 기능화시키는 필터 전극과;상기 필터 전극의 내부 압력을 감소시켜, 상기 필터 전극의 표면에 분말을 흡착시키는 흡착수단과;상기 챔버와 상기 필터 전극 중 어느 하나에 구비되고, 상기 필터 전극에 상하방향과 수평방향 중 적어도 일방향으로 진동을 가하여, 상기 필터 전극의 표면에서 상기 분말을 분산시키는 진동 발생기를 포함하고,상기 필터 전극은, 복수개가 서로 이격공간을 가지도록 적층되어 배치되고,상기 흡착수단은,상기 챔버에 구비되어, 상기 복수의 필터 전극들의 내부 공기를 흡입하여 상기 필터 전극들의 각 내부를 진공 상태로 형성하는 진공 펌프와, 상기 진공 펌프와 상기 복수의 필터 전극들을 연결하는 진공 유로를 포함하고,상기 진동 발생기는,상기 필터 전극에 각각 구비되어, 음향을 발생시키고 공명시켜 음향 진동을 발생시키는 음향 진동 모듈을 포함하는 평판형 필터 전극을 이용한 분말 표면처리용 플라즈마 장치.
- 청구항 14에 있어서,상기 분말은, 나노 또는 마이크로 크기의 분말을 포함하는 평판형 필터 전극을 이용한 분말 표면처리용 플라즈마 장치.
- 평판 형상이고 다공성 구조를 가지도록 형성되며, 전원 인가시 플라즈마를 생성하여, 나노 또는 마이크로 크기의 분말을 표면처리하여 기능화시키는 필터 전극과;상기 필터 전극에 진동을 가하여, 상기 필터 전극의 표면에서 상기 분말을 진동 분산시키는 진동 발생기와;상기 진동 분산되는 상기 분말이 상기 필터 전극으로부터 외부로 이탈되는 것을 방지하게 하도록, 상기 필터 전극의 내부 압력을 감소시켜, 상기 필터 전극의 표면으로 분말을 흡착시키는 흡착수단을 포함하는 평판형 필터 전극을 이용한 분말 표면처리용 플라즈마 장치.
- 청구항 16에 있어서,상기 진동 발생기는,초음파를 발생시켜 진동을 가하는 초음파 진동자와 음향을 발생시키고 공명시켜 음향 진동을 가하는 음향 진동 모듈 중 적어도 하나를 포함하는 평판형 필터 전극을 이용한 분말 표면처리용 플라즈마 장치.
- 청구항 16에 있어서,상기 흡착수단은,상기 필터 전극의 내부 공기를 흡입하여 상기 필터 전극의 내부를 진공 상태로 형성하는 진공 펌프를 포함하는 평판형 필터 전극을 이용한 분말 표면처리용 플라즈마 장치.
- 청구항 16에 있어서,상기 필터 전극은, 복수개가 서로 이격공간을 가지도록 적층되어 배치된 평판형 필터 전극을 이용한 분말 표면처리용 플라즈마 장치.
- 다공성 구조를 가지는 평판으로 형성되며, 전원 인가시 플라즈마를 생성하여 분말을 표면처리하여 기능화시키는 필터 전극과;상기 필터 전극으로부터 상하방향으로 이격되게 적층되어 배치되고, 상기 필터 전극에 대응되도록 평판으로 형성되며, 접지되는 접지 전극과;상기 필터 전극과 상기 접지 전극 중 어느 하나의 내부 압력을 감소시켜, 상기 필터 전극과 상기 접지 전극 중 어느 하나의 표면에 상기 분말을 흡착시키는 흡착수단을 포함하는 평판형 필터 전극을 이용한 분말 표면처리용 플라즈마 장치.
- 청구항 20에 있어서,상기 필터 전극은, 복수개가 서로 이격공간을 가지도록 적층되어 배치되고,상기 접지 전극은, 복수개가 상기 필터 전극들과 교대로 적층되어 배치된 평판형 필터 전극을 이용한 분말 표면처리용 플라즈마 장치.
- 청구항 20에 있어서,상기 필터 전극과 상기 접지 전극 중 어느 하나에 진동을 가하여, 상기 필터 전극과 상기 접지 전극 중 어느 하나의 표면에서 상기 분말을 진동 분산시키는 진동 발생기를 더 포함하는 평판형 필터 전극을 이용한 분말 표면처리용 플라즈마 장치.
- 청구항 22에 있어서,상기 진동 발생기는,초음파를 발생시켜 진동을 가하는 초음파 진동자와, 음향을 발생시키고 공명시켜 음향 진동을 가하는 음향 진동 모듈 중 적어도 하나를 포함하는 평판형 필터 전극을 이용한 분말 표면처리용 플라즈마 장치.
- 청구항 20에 있어서,상기 흡착수단은,상기 필터 전극과 상기 접지 전극 중 어느 하나의 내부 공기를 흡입하여 내부를 진공 상태로 형성하는 진공 펌프를 포함하는 평판형 필터 전극을 이용한 분말 표면처리용 플라즈마 장치.
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EP21898330.2A EP4252902A4 (en) | 2020-11-25 | 2021-10-06 | PLASMA DEVICE FOR TREATING POWDER SURFACES WITH FLAT FILTER ELECTRODES |
US18/036,405 US20240001327A1 (en) | 2020-11-25 | 2021-10-06 | Powder surface treatment plasma device using a flat filter electrode |
CN202180076303.XA CN116472108A (zh) | 2020-11-25 | 2021-10-06 | 利用平板型过滤器电极的粉末表面处理用等离子体装置 |
JP2023530769A JP2023550765A (ja) | 2020-11-25 | 2021-10-06 | 平板型フィルター電極を利用した粉末表面処理用プラズマ装置 |
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CN116472108A (zh) | 2023-07-21 |
KR102417624B1 (ko) | 2022-07-06 |
EP4252902A1 (en) | 2023-10-04 |
KR102417624B9 (ko) | 2023-04-12 |
JP2023550765A (ja) | 2023-12-05 |
KR102405333B1 (ko) | 2022-06-07 |
KR20220072822A (ko) | 2022-06-02 |
EP4252902A4 (en) | 2024-05-29 |
KR20220072438A (ko) | 2022-06-02 |
US20240001327A1 (en) | 2024-01-04 |
KR102405333B9 (ko) | 2023-05-11 |
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