CN109411111B - High-conductivity electrode plate for mass spectrum ion source and preparation method thereof - Google Patents
High-conductivity electrode plate for mass spectrum ion source and preparation method thereof Download PDFInfo
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- CN109411111B CN109411111B CN201811156281.4A CN201811156281A CN109411111B CN 109411111 B CN109411111 B CN 109411111B CN 201811156281 A CN201811156281 A CN 201811156281A CN 109411111 B CN109411111 B CN 109411111B
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- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/14—Conductive material dispersed in non-conductive inorganic material
- H01B1/16—Conductive material dispersed in non-conductive inorganic material the conductive material comprising metals or alloys
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- H—ELECTRICITY
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- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/14—Conductive material dispersed in non-conductive inorganic material
- H01B1/18—Conductive material dispersed in non-conductive inorganic material the conductive material comprising carbon-silicon compounds, carbon or silicon
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- H—ELECTRICITY
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- H01B1/20—Conductive material dispersed in non-conductive organic material
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- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/20—Conductive material dispersed in non-conductive organic material
- H01B1/24—Conductive material dispersed in non-conductive organic material the conductive material comprising carbon-silicon compounds, carbon or silicon
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
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- H—ELECTRICITY
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- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J49/00—Particle spectrometers or separator tubes
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Abstract
The invention discloses a high-conductivity electrode plate for a mass spectrum electron source and a preparation method thereof. The electrode plate comprises the following components in parts by weight: 12-29 parts of nano copper oxide, 1-8 parts of nano silicon dioxide, 1-8 parts of nano silver, 1-3 parts of nano aluminum powder, 12-20 parts of nano graphene, 20-37 parts of modified epoxy resin, 12-25 parts of carbon fiber, 5-8 parts of steel fiber, 3-8 parts of silane coupling agent, 40-58 parts of carbon black, 30-45 parts of diatomite, 3-8 parts of triethanolamine and 20-35 parts of polyethylene glycol. According to the invention, the carbon fiber, the steel fiber, the silane coupling agent, the carbon black and the diatomite are mixed and uniformly stirred, and the nano graphene is added, so that the conductivity of the filler is improved, the wear resistance of the electrode plate is ensured, the weight of the electrode plate is reduced, and the electrode plate has a good application prospect.
Description
Technical Field
The invention relates to the technical field of preparation of mass spectrum ion source components, in particular to a high-conductivity electrode plate for a mass spectrum ion source and a preparation method thereof.
Background
The mass spectrometry is to ionize the molecules of the substance to be measured and then distinguish and quantitatively analyze the molecules according to different mass-to-charge ratios and time sequence under the control of an electric field. The technique of utilizing the nonlinear motion of gas phase ions in a high electric field to detect trace substances. The ion pre-separation device is widely applied to the fields of detection of explosives, drugs and biochemical substances and ion pre-separation.
The ion source is a device for ionizing neutral atoms or molecules and leading out ion beam current from the neutral atoms or molecules, and the traditional ion source has the advantages of small ionization area, low ionization efficiency and large used voltage. When a high voltage is applied across the electrodes, but the breakdown voltage is not reached, if the electric field (local electric field) at the surface of the electrodes is strong, the gas medium near the electrodes will be locally broken down to generate a corona discharge. When the radius of curvature of the electrode is small, the field intensity near the electrode is particularly high and exceeds the ionization field intensity and collision ionization threshold of the gas, and the gas medium near the electrode is only partially ionized, so that positive and negative ions and electrons are formed. The prior electrode material has limited comprehensive performance, and most of the electrode plates adopting a layered structure can ensure high-efficiency conductivity when being put into use, but are excessively used, layered separation is caused, and corona is easy to generate.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a high-conductivity electrode plate for a mass spectrum ion source and a preparation method thereof.
A high-conductivity electrode plate for a mass spectrum electron ion source comprises 12-29 parts of nano copper oxide, 1-8 parts of nano silicon dioxide, 1-8 parts of nano silver, 1-3 parts of nano aluminum powder, 12-20 parts of nano graphene, 20-37 parts of modified epoxy resin, 12-25 parts of carbon fiber, 5-8 parts of steel fiber, 3-8 parts of silane coupling agent, 40-58 parts of carbon black, 30-45 parts of diatomite, 3-8 parts of triethanolamine and 20-35 parts of polyethylene glycol.
The improved high-conductivity electrode plate for the mass spectrum ion source comprises the following components in parts by weight: 25 parts of nano copper oxide, 6 parts of nano silicon dioxide, 4 parts of nano silver, 2 parts of nano aluminum powder, 18 parts of nano graphene, 35 parts of modified epoxy resin, 20 parts of carbon fiber, 7 parts of steel fiber, 6 parts of silane coupling agent, 50 parts of carbon black, 40 parts of diatomite, 5 parts of triethanolamine and 30 parts of polyethylene glycol.
The modified epoxy resin is formed by mixing epoxy resin, maleic acid and carbon nano tubes according to a molar ratio of 15-22:1: 2-5.
The preparation method of the high-conductivity electrode plate for the mass spectrum ion source comprises the following steps:
step 1, mixing nano copper oxide, nano silicon dioxide, nano silver, nano aluminum powder and modified epoxy resin, putting into a reaction kettle, and heating to the temperature of 180 ℃ and 250 ℃ to obtain a mixture A;
step 2, mixing carbon fibers, steel fibers, a silane coupling agent, carbon black and diatomite, uniformly stirring, adding nano graphene, sintering, and performing ball milling to obtain powder B;
and 3, mixing the mixed slurry A, the powder B and the carbon black, adding triethanolamine and polyethylene glycol, stirring, putting into a mixer, uniformly mixing, keeping the temperature for 12-20 minutes, transferring into a motor mold, sintering in a nitrogen atmosphere, and naturally cooling to obtain a finished product.
The improvement is that the temperature rising rate in the step 3 is 1-3 ℃/min.
As a modification, the sintering temperature in step 3 is 120-150 ℃.
Has the advantages that:
compared with the prior art, the high-conductivity electrode plate for the mass spectrum ion source and the preparation method thereof have the advantages that:
1. the carbon fiber, the steel fiber, the silane coupling agent, the carbon black and the diatomite are mixed and stirred uniformly, and the nano graphene is added, so that the conductivity of the filler is improved, the wear resistance of the electrode plate is ensured, the weight of the electrode plate is reduced, and the electrode plate has a good application prospect;
2. after the mixed slurry A, the powder B and the conductive carbon black are mixed, the mixture is sintered at a constant speed, the mechanical property and the conductivity of the mixed material are effectively ensured, and the service life of the electrode plate is prolonged.
Detailed Description
The present invention will be described in further detail below with reference to specific examples.
Example 1
A high-conductivity electrode plate for a mass spectrum ion source comprises the following components in parts by weight: 12 parts of nano copper oxide, 1 part of nano silicon dioxide, 1 part of nano silver, 1 part of nano aluminum powder, 12 parts of nano graphene, 20 parts of modified epoxy resin, 12 parts of carbon fiber, 5 parts of steel fiber, 3 parts of silane coupling agent, 40 parts of carbon black, 30-parts of diatomite, 3 parts of triethanolamine and 20 parts of polyethylene glycol.
The modified epoxy resin is prepared from epoxy resin, maleic acid and carbon nanotubes in a molar ratio of 15:1: 2.
The preparation method of the high-conductivity electrode plate for the mass spectrum ion source comprises the following steps:
step 1, mixing nano copper oxide, nano silicon dioxide, nano silver, nano aluminum powder and modified epoxy resin, putting into a reaction kettle, and heating to 180 ℃ to obtain a mixture A;
step 2, mixing carbon fibers, steel fibers, a silane coupling agent, carbon black and diatomite, uniformly stirring, adding nano graphene, sintering, and performing ball milling to obtain powder B;
and 3, mixing the mixed slurry A, the powder B and the carbon black, adding triethanolamine and polyethylene glycol, stirring, putting into a mixer, uniformly mixing, keeping the temperature for 12-20 minutes, transferring into a motor mould, sintering at 120 ℃ in a nitrogen atmosphere at the heating rate of 1 ℃/min, and naturally cooling to obtain a finished product.
The electrode plate obtained in example 1 was tested to have a length, width, height of 5 mm 20 mm, a Shore hardness of 24, an abrasion loss of 0.34mm/100H, a service life of 1856H, and a resistivity of 286. mu. OMEGA.m.
Example 2
A high-conductivity electrode plate for a mass spectrum ion source comprises the following components in parts by weight: 25 parts of nano copper oxide, 6 parts of nano silicon dioxide, 4 parts of nano silver, 2 parts of nano aluminum powder, 18 parts of nano graphene, 35 parts of modified epoxy resin, 20 parts of carbon fiber, 7 parts of steel fiber, 6 parts of silane coupling agent, 50 parts of carbon black, 40 parts of diatomite, 5 parts of triethanolamine and 30 parts of polyethylene glycol.
The modified epoxy resin is prepared from epoxy resin, maleic acid and carbon nanotubes in a molar ratio of 20:1: 3.
The preparation method of the high-conductivity electrode plate for the mass spectrum ion source comprises the following steps:
step 1, mixing nano copper oxide, nano silicon dioxide, nano silver, nano aluminum powder and modified epoxy resin, putting into a reaction kettle, and heating to 200 ℃ to obtain a mixture A;
step 2, mixing carbon fibers, steel fibers, a silane coupling agent, carbon black and diatomite, uniformly stirring, adding nano graphene, sintering, and performing ball milling to obtain powder B;
and 3, mixing the mixed slurry A, the powder B and the carbon black, adding triethanolamine and polyethylene glycol, stirring, putting into a mixer, uniformly mixing, keeping the temperature for 18 minutes, transferring into a motor mould, sintering at 130 ℃ under the nitrogen atmosphere, heating at the rate of 1-3 ℃/min, and naturally cooling to obtain a finished product.
The electrode plate obtained in example 2 was tested to have a length, width, height of 5 mm 20 mm, a shore hardness of 28, an abrasion loss of 0.30mm/100H, a service life of 1956H, and a resistivity of 232 μ Ω m.
Example 3
A high-conductivity electrode plate for a mass spectrum ion source comprises the following components in parts by weight: 29 parts of nano copper oxide, 8 parts of nano silicon dioxide, 8 parts of nano silver, 3 parts of nano aluminum powder, 20 parts of nano graphene, 37 parts of modified epoxy resin, 25 parts of carbon fiber, 8 parts of steel fiber, 8 parts of silane coupling agent, 58 parts of carbon black, 45 parts of diatomite, 8 parts of triethanolamine and 35 parts of polyethylene glycol.
The modified epoxy resin is prepared from epoxy resin, maleic acid and carbon nanotubes in a molar ratio of 22:1: 5.
The preparation method of the high-conductivity electrode plate for the mass spectrum ion source comprises the following steps:
step 1, mixing nano copper oxide, nano silicon dioxide, nano silver, nano aluminum powder and modified epoxy resin, putting into a reaction kettle, and heating to 250 ℃ to obtain a mixture A;
step 2, mixing carbon fibers, steel fibers, a silane coupling agent, carbon black and diatomite, uniformly stirring, adding nano graphene, sintering, and performing ball milling to obtain powder B;
and 3, mixing the mixed slurry A, the powder B and the carbon black, adding triethanolamine and polyethylene glycol, stirring, putting into a mixer, uniformly mixing, keeping the temperature for 20 minutes, transferring into a motor mould, sintering at 150 ℃ under the nitrogen atmosphere, heating at the rate of 3 ℃/min, and naturally cooling to obtain a finished product.
The electrode plate obtained in example 3 was tested and had dimensions of 5 mm by 20 mm in length by width, 22 shore hardness, 0.38mm/100H wear, 1782H service life and 286 μ Ω m resistivity.
Comparative example 1
The process is the same as example 2 except that the nano graphene is not contained.
The electrode plate obtained in comparative example 1 was tested, and had dimensions of length, width, height, 5 mm, 20 mm, a shore hardness of 18, a wear loss of 0.62mm/100H, a service life of 1482H, and a resistivity of 286 μ Ω m.
In conclusion, the electrode plate has the advantages of good wear resistance, strong conductivity, light texture and good market prospect.
The above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, and any simple modifications or equivalent substitutions of the technical solutions that can be obviously obtained by those skilled in the art within the technical scope of the present invention are within the scope of the present invention.
Claims (2)
1. A high-conductivity electrode plate for a mass spectrum electron ion source is characterized by comprising 12-29 parts of nano copper oxide, 1-8 parts of nano silicon dioxide, 1-8 parts of nano silver, 1-3 parts of nano aluminum powder, 12-20 parts of nano graphene, 20-37 parts of modified epoxy resin, 12-25 parts of carbon fiber, 5-8 parts of steel fiber, 3-8 parts of silane coupling agent, 40-58 parts of carbon black, 30-45 parts of diatomite, 3-8 parts of triethanolamine and 20-35 parts of polyethylene glycol; the preparation method of the electrode plate comprises the following steps: step 1, mixing nano copper oxide, nano silicon dioxide, nano silver, nano aluminum powder and modified epoxy resin, putting into a reaction kettle, and heating to the temperature of 180 ℃ and 250 ℃ to obtain a mixture A; step 2, mixing carbon fibers, steel fibers, a silane coupling agent, carbon black and diatomite, uniformly stirring, adding nano graphene, sintering, and performing ball milling to obtain powder B; step 3, mixing the mixed slurry A, the powder B and the carbon black, adding triethanolamine and polyethylene glycol, stirring, putting into a mixer, uniformly mixing, keeping the temperature for 12-20 minutes, transferring into a motor mold, sintering in a nitrogen atmosphere, and naturally cooling to obtain a finished product; the modified epoxy resin is prepared by mixing epoxy resin, maleic acid and carbon nano tubes according to a molar ratio of 15-22:1: 2-5; in the step 3, the heating rate is 1-3 ℃/min; the sintering temperature is 120-150 ℃.
2. The high-conductivity electrode plate for the mass spectrum ion source according to claim 1, comprising the following components in parts by weight: 25 parts of nano copper oxide, 6 parts of nano silicon dioxide, 4 parts of nano silver, 2 parts of nano aluminum powder, 18 parts of nano graphene, 35 parts of modified epoxy resin, 20 parts of carbon fiber, 7 parts of steel fiber, 6 parts of silane coupling agent, 50 parts of carbon black, 40 parts of diatomite, 5 parts of triethanolamine and 30 parts of polyethylene glycol.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009099781A (en) * | 2007-10-17 | 2009-05-07 | Central Glass Co Ltd | Conductive paste material |
| KR20110121881A (en) * | 2010-05-03 | 2011-11-09 | 주식회사 케이씨씨 | Silicone composition having excellent long-term storage stability and heat-radiating function |
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| CN1017301B (en) * | 1990-02-06 | 1992-07-01 | 北京海淀太阳能新技术公司 | Thick-film electrode material and preparing method thereof |
| CN1453799A (en) * | 2003-06-03 | 2003-11-05 | 段曦东 | Composite conducting ceramic and its prepn |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2009099781A (en) * | 2007-10-17 | 2009-05-07 | Central Glass Co Ltd | Conductive paste material |
| KR20110121881A (en) * | 2010-05-03 | 2011-11-09 | 주식회사 케이씨씨 | Silicone composition having excellent long-term storage stability and heat-radiating function |
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