CN204149551U - A kind of repacking plasma generator for silicon rubber insulator surface modification - Google Patents
A kind of repacking plasma generator for silicon rubber insulator surface modification Download PDFInfo
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- CN204149551U CN204149551U CN201420451056.4U CN201420451056U CN204149551U CN 204149551 U CN204149551 U CN 204149551U CN 201420451056 U CN201420451056 U CN 201420451056U CN 204149551 U CN204149551 U CN 204149551U
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Abstract
A kind of repacking plasma generator for silicon rubber insulator surface modification, comprise a plasma cleaning apparatus (1), its fuselage back is provided with " Vent ", " Gas " and " Pump " interface, the external working gas steel cylinder (4) of described " Vent " and " Gas " interface, " Pump " interface connects one end of a bellows (7), the other end access of bellows has an entrance of the vacuum gauge (8) of three interfaces, outlet first quarter stream valve (12) of vacuum gauge connects a mechanical pump (13) afterwards, another outlet is through Pirani gauge (9), vacuum meter (11) is connect after wire (10).The large amount of organic fragment that the utility model produces when modified-silicon-rubber insulation sub-surface can be sucked away, and can meet the demands and reach experiment condition, and it is low to reequip easy cost, and method of operating is easy, and energy controllable is short for experimental period.
Description
Technical field
The utility model relates to a kind of plasma producing apparatus, especially relate to a kind of can to the process of polymer composite silicon rubber insulator modifying surface, make the surface of silicon rubber hydrophobicity become hydrophilic repacking plasma generator.
Background technology
Silastic material, except the insulating property (properties) of itself, also has good elasticity, gas-premeable simultaneously, and excellent biocompatibility.In such as micro flow chip, soft printing, biosimulation material etc., silastic material also gains great popularity.But all require that material surface will have good hydrophilicity in these fields, so researcher studies how to change the hydrophobicity of silicon rubber into hydrophily emphatically.It is found that after processing silastic surface with plasma, its surface energy keeps the hydrophilic ability of long period.
It is the four kind form of material except existing after solid, liquid, gas that plasma is described as, and the atom after this material is deprived of by portions of electronics and atom are ionized the ionized gas that rear produced positron-electron forms and form.In silicon rubber insulator, Si-O key bond energy is 7.7eV, Si-C key bond energy is 5.8eV, c h bond bond energy is 6.9eV, and the energy of plasma can reach ten a few to tens of electron-volts (eV), when plasma sputtering is to silastic surface, the strand of silastic surface is interrupted, the hydrophobic methyl be symmetric is destroyed, scission of link forms free radical, these free radicals can form hydroxyl, carboxyl isopolarity group with the oxygen reaction in air, thus make silastic surface hydrophobicity loss become hydrophily.Experimental result shows, and the silastic surface after plasma treatment and the static contact angle of water can reach 0 °.
In addition, Small molecular diffusion theory is thought, silicon rubber inside exists uncrosslinked Small molecular (LMW), and after the hydrophobic structure of silastic surface is destroyed, Small molecular can, from silicon rubber diffusion inside to outer surface, make silicon rubber recover hydrophobicity.Silastic surface free energy after plasma treatment increases, according to maximum energy criterion, the strand that external energy is larger will inwardly overturn, with the state making silastic surface reach stable, and the Small molecular of inside will to external diffusion, driving force is the reduction of surface free energy.When reaching balance, Small molecular stops migration, and hydrophobicity recovery process terminates.
Existing industrial plasma cleaning apparatus, its fuselage back is provided with " Vent ", " Gas " and " Pump " interface, cleaning apparatus is mainly used in a small amount of organic pollution of clean metal material surface, the organic debris that plasma strike organic pollution produces is few, but with producing a large amount of organic matter fragments during plasma treatment high-molecular organic material, therefore industrial plasma clean instrument can not meet requirement of experiment.
Utility model content
Technical problem to be solved in the utility model, just be to provide a kind of repacking plasma generator for silicon rubber insulator surface modification, the large amount of organic fragment produced when reequiping through the silicon rubber insulation sub-surface of its modification can be sucked away, can meet the demands and reach experiment condition, and it is low to reequip easy cost, method of operating is easy, and energy controllable is short for experimental period.
Solve the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of repacking plasma generator for silicon rubber insulator surface modification, it is characterized in that: comprise a plasma cleaning apparatus 1, its fuselage back is provided with " Vent ", " Gas " and " Pump " interface, the described external working gas steel cylinder 4 of " Vent " and " Gas " interface, " Pump " interface connects one end of a bellows 7, the other end access of bellows has an entrance of the vacuum gauge 8 of three interfaces, a mechanical pump 13 is connected after an outlet first quarter stream valve 12 of vacuum gauge, another outlet connecting resistance rule 9, Pirani gauge 9 has wire 10 to connect vacuum meter 11.
Pressure in vacuum meter display plasma generator reaction warehouse, vacuum gauge is equivalent to three-dimensional choke valve, plays conduit branch.
Vacuum can be evacuated to below 10Pa by described mechanical pump, and the large amount of organic fragment produced when reequiping can be sucked away, and vacuum meter precision is 0.1Pa.
Beneficial effect: the utility model can only be made industrial plasma clean instrument and repack the precision instrument that can be used for scientific research into, can save financial cost, can reach experiment condition again; And the plasma after repacking has and can carry out burin-in process to polymer composite surface, the large amount of organic fragment produced during repacking can be sucked away, and has internal pressure controlled, and repacking is the advantage such as easy and simple to handle easily.
Advantage part of the present utility model is: 1. plasma repacking instrument can regulate the pressure in reaction warehouse (accuracy is 0.1Pa) accurately, obtains the regulatable plasma beam of energy; 2. the plasma clean instrument used in plasma repacking instrument, vacuum gauge and vacuum meter, bellows, choke valve, mechanical pump, working gas steel cylinder routine is easy to get, cheap; 3. easily, method of operating is easy, and experimental period is short in repacking.
Accompanying drawing explanation
Fig. 1 is plasma conversion apparatus structural representation;
Fig. 2 is that a certain silicon rubber insulator is through gas ions static contact angle before treatment;
Fig. 3 is the static contact angle of a certain silicon rubber insulator after gas ions process;
Fig. 4 is the restorative curve of the hydrophobic of a certain silicon rubber insulator after gas ions process.
In figure: 1-plasma clean instrument, 2-reaction warehouse, 3-air intake valve, 4-working gas steel cylinder, 5-conduit, 6-evacuating valve, 7-bellows, 8-vacuum gauge.9-Pirani gauge, 10-wire, 11-vacuum meter, 12-choke valve, 13-mechanical pump.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is further elaborated.
Repacking plasma generator embodiment for silicon rubber insulator surface modification of the present utility model, comprise plasma clean instrument 1, plasma clean instrument original " Vent " and the external working gas steel cylinder 4 of " Gas " interface, " Pump " interface connect one end of a bellows 7, the other end access of bellows has an entrance of the vacuum gauge 8 of three interfaces, connect a mechanical pump 13, another outlet connecting resistance rule 9 after an outlet first quarter stream valve 12 of vacuum gauge, Pirani gauge 9 has wire 10 to connect vacuum meter 11.
Concrete modification operating procedure is as follows:
(1), in the middle part of composite insulator silicon rubber full skirt cut one piece of sample, specification is 2cm × 1cm, and with being put in behind washes of absolute alcohol surface, dry 24h in drying box is stand-by.
(2), open plasma cleaning apparatus power supply, after instrument starts, press " Air/Vent " button, rotate the intake valve of argon gas, adjustment feed rate is 15L/min, is all full of behind plasma vacuum chamber, instrument can show " P " until argon gas.Open discharge cavity compartment from door, sample is placed on the region of specifying, shuts isolating door, again press " Air/Vent " button, stop argon inlet.
(3), press " Standby " button, and open mechanical pump, press " Pump " button after 5s, be evacuated to 1Pa.Press " Gas " button, in chamber, pass into carrier gas, flow-control is at 300-400mL/min.Revolve little main valve, regulate choke valve, control pressure and be stabilized between 3-5Pa.
(4) " Generator " button, is pressed, plasma treatment is carried out to sample surfaces, to required time, presses successively " Gas ", " Generator ", " Pump ", " Standby " button, presses " Air/Vent " button, pass into argon gas, after instrument " P ", open isolating door and take out sample, carry out Static Contact angular measurement.
(5), by sample be placed on Static Contact angle measuring instrument, within first 3 hours, test the static contact angle of a sample and water every 0.5h, afterwards every 1h test once.Test is until the static contact angle of sample and water fluctuates and is no more than 2 ° and can terminates to measure.
(6), will measure result input mapping software, take time as transverse axis, contact angle is the longitudinal axis, draws the restorative curve of silicon rubber sample hydrophobic.
Claims (2)
1. the repacking plasma generator for silicon rubber insulator surface modification, it is characterized in that: comprise a plasma cleaning apparatus (1), its fuselage back is provided with " Vent ", " Gas " and " Pump " interface, the external working gas steel cylinder (4) of described " Vent " and " Gas " interface, " Pump " interface connects one end of a bellows (7), the other end access of bellows has the entrance of the vacuum gauge (8) of three interfaces, outlet first quarter stream valve (12) of vacuum gauge connects a mechanical pump (13) afterwards, another outlet connecting resistance rule (9), Pirani gauge (9) has wire (10) to connect vacuum meter (11).
2. the repacking plasma generator for silicon rubber insulator surface modification according to claim 1, is characterized in that: the vacuum that described mechanical pump reaches is that vacuum is evacuated to below 10Pa, and vacuum meter precision is 0.1Pa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420451056.4U CN204149551U (en) | 2014-08-11 | 2014-08-11 | A kind of repacking plasma generator for silicon rubber insulator surface modification |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420451056.4U CN204149551U (en) | 2014-08-11 | 2014-08-11 | A kind of repacking plasma generator for silicon rubber insulator surface modification |
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| CN204149551U true CN204149551U (en) | 2015-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420451056.4U Expired - Fee Related CN204149551U (en) | 2014-08-11 | 2014-08-11 | A kind of repacking plasma generator for silicon rubber insulator surface modification |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105259079A (en) * | 2015-11-13 | 2016-01-20 | 广东电网有限责任公司电力科学研究院 | Method for measuring surface hydrophobic restoration property of silicone rubber composite insulator obtained after plasma treatment |
-
2014
- 2014-08-11 CN CN201420451056.4U patent/CN204149551U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105259079A (en) * | 2015-11-13 | 2016-01-20 | 广东电网有限责任公司电力科学研究院 | Method for measuring surface hydrophobic restoration property of silicone rubber composite insulator obtained after plasma treatment |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 510080 water Donggang 8, Dongfeng East Road, Yuexiu District, Guangzhou, Guangdong. Patentee after: Electric Power Research Institute of Guangdong Power Grid Co.,Ltd. Patentee after: WUHAN University Address before: 510080 water Donggang 8, Dongfeng East Road, Yuexiu District, Guangzhou, Guangdong. Patentee before: ELECTRIC POWER RESEARCH INSTITUTE OF GUANGDONG POWER GRID Corp. Patentee before: WUHAN University |
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| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210220 Address after: 510080 water Donggang 8, Dongfeng East Road, Yuexiu District, Guangzhou, Guangdong. Patentee after: Electric Power Research Institute of Guangdong Power Grid Co.,Ltd. Address before: 510080 water Donggang 8, Dongfeng East Road, Yuexiu District, Guangzhou, Guangdong. Patentee before: Electric Power Research Institute of Guangdong Power Grid Co.,Ltd. Patentee before: WUHAN University |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150211 |
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| CF01 | Termination of patent right due to non-payment of annual fee |