CN113972068B - Glass glaze capacitor and preparation method thereof - Google Patents
Glass glaze capacitor and preparation method thereof Download PDFInfo
- Publication number
- CN113972068B CN113972068B CN202111190286.0A CN202111190286A CN113972068B CN 113972068 B CN113972068 B CN 113972068B CN 202111190286 A CN202111190286 A CN 202111190286A CN 113972068 B CN113972068 B CN 113972068B
- Authority
- CN
- China
- Prior art keywords
- maleic anhydride
- methacrylic acid
- glass
- anhydride copolymer
- capacitor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000003990 capacitor Substances 0.000 title claims abstract description 48
- 239000011521 glass Substances 0.000 title claims abstract description 44
- 238000002360 preparation method Methods 0.000 title abstract description 12
- 239000000843 powder Substances 0.000 claims abstract description 60
- 229920001577 copolymer Polymers 0.000 claims abstract description 46
- 238000007789 sealing Methods 0.000 claims abstract description 33
- 238000004806 packaging method and process Methods 0.000 claims abstract description 32
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims abstract description 18
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000000853 adhesive Substances 0.000 claims abstract description 17
- 230000001070 adhesive effect Effects 0.000 claims abstract description 17
- 238000002156 mixing Methods 0.000 claims abstract description 17
- 238000003756 stirring Methods 0.000 claims description 40
- 238000007334 copolymerization reaction Methods 0.000 claims description 26
- 239000002002 slurry Substances 0.000 claims description 16
- 238000001291 vacuum drying Methods 0.000 claims description 16
- 238000001035 drying Methods 0.000 claims description 15
- 238000005119 centrifugation Methods 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 8
- 238000005520 cutting process Methods 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 8
- 238000005096 rolling process Methods 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910017052 cobalt Inorganic materials 0.000 claims description 3
- 239000010941 cobalt Substances 0.000 claims description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims 5
- 238000000034 method Methods 0.000 claims 5
- 239000011812 mixed powder Substances 0.000 claims 2
- 238000010030 laminating Methods 0.000 claims 1
- 150000002500 ions Chemical class 0.000 abstract description 10
- 229910000510 noble metal Inorganic materials 0.000 abstract description 10
- 238000006116 polymerization reaction Methods 0.000 abstract description 5
- 230000015556 catabolic process Effects 0.000 abstract description 4
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 abstract description 2
- 239000013522 chelant Substances 0.000 abstract description 2
- 238000007142 ring opening reaction Methods 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 13
- 238000003475 lamination Methods 0.000 description 7
- 239000000243 solution Substances 0.000 description 3
- 210000003298 dental enamel Anatomy 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000009920 chelation Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000002484 cyclic voltammetry Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000003746 solid phase reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/018—Dielectrics
- H01G4/06—Solid dielectrics
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G13/00—Apparatus specially adapted for manufacturing capacitors; Processes specially adapted for manufacturing capacitors not provided for in groups H01G4/00 - H01G11/00
- H01G13/003—Apparatus or processes for encapsulating capacitors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/13—Energy storage using capacitors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The invention belongs to the technical field of capacitors, and particularly relates to a glass glaze capacitor and a preparation method thereof, wherein the glass glaze capacitor comprises a packaging medium and a sealing film layer, and the packaging medium is formed by mixing 50-100 parts of glass glaze powder, 1-6 parts of adhesive and 40-90 parts of methacrylic acid-maleic anhydride copolymer powder; methacrylic acid-maleic anhydride copolymer powder is prepared from methacrylic acid, maleic anhydride and a photoinitiator in a mass ratio of 1:1-3:0.2-0.4, and copolymerizing under ultraviolet irradiation. In the technical scheme of the invention, in the methacrylic acid-maleic anhydride copolymer prepared by ultraviolet irradiation polymerization, two carbonyl groups formed after ring opening of maleic anhydride in the polymerization process can chelate noble metal ions, so that the noble metal ions are bound, and the phenomenon that the noble metal ions migrate and breakdown occurs to cause the damage of a capacitor is prevented.
Description
Technical Field
The invention relates to the technical field of capacitors, in particular to a glass glaze capacitor and a preparation method thereof.
Background
The glass glaze capacitor is one kind of common capacitor device, and is used mainly in low frequency coupling, filtering and other fields, and the dielectric is glass glaze powder pressurized sheet with high dielectric coefficient, small volume and other features.
The glass glaze capacitor has the characteristics of large dielectric coefficient, small volume, small loss and the like, but noble metal ion migration phenomenon can be generated along with the increase of service years, so that breakdown occurs, and the capacitor is damaged.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides a glass glaze capacitor and a preparation method thereof, and aims to solve the problem that noble metal ions in the glass glaze capacitor migrate to cause breakdown and damage to the capacitor.
(II) technical scheme
In order to achieve the above purpose, the present invention provides the following technical solutions:
the glass glaze capacitor comprises a packaging medium and a sealing film layer, wherein the packaging medium is formed by mixing 50-100 parts of glass glaze powder, 1-6 parts of adhesive and 40-90 parts of methacrylic acid-maleic anhydride copolymer powder.
Preferably, the sealing film layer is made of one of nickel, aluminum, copper and cobalt.
Preferably, the photoinitiator is photoinitiator-651.
Preferably, the preparation method of the glass glaze capacitor comprises the following steps:
(1) Under the condition that a photoinitiator exists, methacrylic acid and maleic anhydride are subjected to copolymerization reaction under the irradiation of ultraviolet light, and after the copolymerization reaction is finished, the methacrylic acid-maleic anhydride copolymer powder is obtained through centrifugation and drying;
(2) Mixing and stirring the obtained methacrylic acid-maleic anhydride copolymer powder and glass glaze powder to obtain a packaging medium;
(3) Adding the methacrylic acid-maleic anhydride copolymer powder obtained in the step (1), the packaging medium obtained in the step (2) and the adhesive into a stirring kettle, stirring to obtain slurry, coating the slurry on a sealing film layer, and performing vacuum drying, rolling, cutting, lamination, shell entering, sealing and liquid injection to obtain the finished product.
Preferably, the wavelength of ultraviolet light in the step (1) is 340-365nm.
Preferably, the conditions of the copolymerization reaction in the step (1) are that the reaction is carried out for 2 to 4 hours at the temperature of 110 to 130 ℃.
Preferably, the vacuum drying time in the step (3) is 8-12h, and the drying temperature is 100-120 ℃.
Preferably, in the step (3), the stirring speed is 70-90r/min, and the stirring time is 20-40min.
(III) beneficial technical effects
In the technical scheme of the invention, in the methacrylic acid-maleic anhydride copolymer prepared by ultraviolet irradiation polymerization, the methacrylic acid-maleic anhydride copolymer is mixed in glass glaze powder, noble metal ions participate in solid phase reaction on the surface of glass glaze medium, an interface layer is formed at the contact position of the glass glaze medium and the noble metal ions, two carbonyl groups formed after ring opening of maleic anhydride in the polymerization process can chelate the noble metal ions, so that the noble metal ions are bound, the noble metal ion migration phenomenon is prevented, breakdown occurs, and the capacitor is damaged.
In the technical scheme of the invention, methacrylic acid-maleic anhydride copolymer powder is prepared by ultraviolet copolymerization of methacrylic acid, maleic acid and a photoinitiator, is easy to polymerize at low temperature, and can obtain pure methacrylic acid-maleic anhydride copolymer without initiator residues in the polymerization process.
Detailed Description
To achieve the above object, the present invention provides the following examples and comparative examples:
example 1
A glass glaze capacitor comprises a packaging medium and a sealing film layer, wherein the packaging medium is formed by mixing 50 parts of glass glaze powder, 1 part of adhesive and 40 parts of methacrylic acid-maleic anhydride copolymer powder; methacrylic acid-maleic anhydride copolymer powder is prepared from methacrylic acid, maleic anhydride and a photoinitiator in a mass ratio of 1:1:0.2 and is formed by copolymerization under the irradiation of ultraviolet light.
The sealing film layer is made of aluminum, and the photoinitiator is a photoinitiator-651.
In this embodiment, the preparation method of the glass-glazed capacitor includes the following steps:
(1) Under the condition that a photoinitiator exists, methacrylic acid and maleic anhydride are subjected to copolymerization reaction under the irradiation of ultraviolet light, the wavelength of the ultraviolet light is 340nm, the copolymerization reaction condition is that the reaction is carried out for 2 hours at 110 ℃, and methacrylic acid-maleic anhydride copolymer powder is obtained after the copolymerization reaction is finished by centrifugation and drying;
(2) Mixing and stirring the obtained methacrylic acid-maleic anhydride copolymer powder and glass glaze powder to obtain a packaging medium;
(3) Adding the methacrylic acid-maleic anhydride copolymer powder obtained in the step (1), the packaging medium obtained in the step (2) and the adhesive into a stirring kettle, stirring to obtain slurry, coating the slurry on a sealing film layer, and then carrying out vacuum drying, rolling, cutting, lamination, shell entering, sealing and liquid injection, wherein the vacuum drying time is 8 hours, the drying temperature is 100 ℃, the stirring speed is 70r/min, and the stirring time is 20 minutes, thus obtaining the finished product.
Example 2
A glass glaze capacitor comprises a packaging medium and a sealing film layer, wherein the packaging medium is formed by mixing 60 parts of glass glaze powder, 2 parts of adhesive and 50 parts of methacrylic acid-maleic anhydride copolymer powder; methacrylic acid-maleic anhydride copolymer powder is prepared from methacrylic acid, maleic anhydride and a photoinitiator in a mass ratio of 1:2:0.3, and copolymerizing under ultraviolet irradiation.
The sealing film layer is made of aluminum, and the photoinitiator is a photoinitiator-651.
In this embodiment, the preparation method of the glass-glazed capacitor includes the following steps:
(1) Under the condition that a photoinitiator exists, methacrylic acid and maleic anhydride are subjected to copolymerization reaction under the irradiation of ultraviolet light, the wavelength of the ultraviolet light is 350nm, the copolymerization reaction condition is that the reaction is carried out for 3 hours at 120 ℃, and methacrylic acid-maleic anhydride copolymer powder is obtained after the copolymerization reaction is finished by centrifugation and drying;
(2) Mixing and stirring the obtained methacrylic acid-maleic anhydride copolymer powder and glass glaze powder to obtain a packaging medium;
(3) Adding the methacrylic acid-maleic anhydride copolymer powder obtained in the step (1), the packaging medium obtained in the step (2) and the adhesive into a stirring kettle, stirring to obtain slurry, coating the slurry on a sealing film layer, and then carrying out vacuum drying, rolling, cutting, lamination, shell entering, sealing and liquid injection, wherein the vacuum drying time is 10 hours, the drying temperature is 110 ℃, the stirring speed is 80r/min, and the stirring time is 30 minutes, thus obtaining the finished product.
Example 3
A glass glaze capacitor comprises a packaging medium and a sealing film layer, wherein the packaging medium is formed by mixing 70 parts of glass glaze powder, 3 parts of adhesive and 60 parts of methacrylic acid-maleic anhydride copolymer powder; methacrylic acid-maleic anhydride copolymer powder is prepared from methacrylic acid, maleic anhydride and a photoinitiator in a mass ratio of 1:3:0.4, and copolymerizing under ultraviolet irradiation.
The sealing film layer is made of nickel, and the photoinitiator is a photoinitiator-651.
In this embodiment, the preparation method of the glass-glazed capacitor includes the following steps:
(1) Under the condition that a photoinitiator exists, methacrylic acid and maleic anhydride are subjected to copolymerization reaction under the irradiation of ultraviolet light, the wavelength of the ultraviolet light is 365nm, the copolymerization reaction condition is 130 ℃ for 4 hours, and methacrylic acid-maleic anhydride copolymer powder is obtained after the copolymerization reaction is finished by centrifugation and drying;
(2) Mixing and stirring the obtained methacrylic acid-maleic anhydride copolymer powder and glass glaze powder to obtain a packaging medium;
(3) Adding the methacrylic acid-maleic anhydride copolymer powder obtained in the step (1), the packaging medium obtained in the step (2) and the adhesive into a stirring kettle, stirring to obtain slurry, coating the slurry on a sealing film layer, and then carrying out vacuum drying, rolling, cutting, lamination, shell entering, sealing and liquid injection, wherein the vacuum drying time is 12h, the drying temperature is 120 ℃, the stirring speed is 90r/min, and the stirring time is 40min, thus obtaining the finished product.
Example 4
A glass glaze capacitor comprises a packaging medium and a sealing film layer, wherein the packaging medium is formed by mixing 80 parts of glass glaze powder, 4 parts of adhesive and 70 parts of methacrylic acid-maleic anhydride copolymer powder; methacrylic acid-maleic anhydride copolymer powder is prepared from methacrylic acid, maleic anhydride and a photoinitiator in a mass ratio of 1:2:0.3, and copolymerizing under ultraviolet irradiation.
The sealing film layer is made of copper, and the photoinitiator is a photoinitiator-651.
In this embodiment, the preparation method of the glass-glazed capacitor includes the following steps:
(1) Under the condition that a photoinitiator exists, methacrylic acid and maleic anhydride are subjected to copolymerization reaction under the irradiation of ultraviolet light, the wavelength of the ultraviolet light is 350nm, the copolymerization reaction condition is that the reaction is carried out for 3 hours at 120 ℃, and methacrylic acid-maleic anhydride copolymer powder is obtained after the copolymerization reaction is finished by centrifugation and drying;
(2) Mixing and stirring the obtained methacrylic acid-maleic anhydride copolymer powder and glass glaze powder to obtain a packaging medium;
(3) Adding the methacrylic acid-maleic anhydride copolymer powder obtained in the step (1), the packaging medium obtained in the step (2) and the adhesive into a stirring kettle, stirring to obtain slurry, coating the slurry on a sealing film layer, and then carrying out vacuum drying, rolling, cutting, lamination, shell entering, sealing and liquid injection, wherein the vacuum drying time is 10 hours, the drying temperature is 110 ℃, the stirring speed is 80r/min, and the stirring time is 30 minutes, thus obtaining the finished product.
Example 5
A glass glaze capacitor comprises a packaging medium and a sealing film layer, wherein the packaging medium is formed by mixing 90 parts of glass glaze powder, 5 parts of adhesive and 80 parts of methacrylic acid-maleic anhydride copolymer powder; methacrylic acid-maleic anhydride copolymer powder is prepared from methacrylic acid, maleic anhydride and a photoinitiator in a mass ratio of 1:2:0.3, and copolymerizing under ultraviolet irradiation.
The sealing film layer is made of cobalt, and the photoinitiator is a photoinitiator-651.
In this embodiment, the preparation method of the glass-glazed capacitor includes the following steps:
(1) Under the condition that a photoinitiator exists, methacrylic acid and maleic anhydride are subjected to copolymerization reaction under the irradiation of ultraviolet light, the wavelength of the ultraviolet light is 350nm, the copolymerization reaction condition is that the reaction is carried out for 3 hours at 120 ℃, and methacrylic acid-maleic anhydride copolymer powder is obtained after the copolymerization reaction is finished by centrifugation and drying;
(2) Mixing and stirring the obtained methacrylic acid-maleic anhydride copolymer powder and glass glaze powder to obtain a packaging medium;
(3) Adding the methacrylic acid-maleic anhydride copolymer powder obtained in the step (1), the packaging medium obtained in the step (2) and the adhesive into a stirring kettle, stirring to obtain slurry, coating the slurry on a sealing film layer, and then carrying out vacuum drying, rolling, cutting, lamination, shell entering, sealing and liquid injection, wherein the vacuum drying time is 10 hours, the drying temperature is 110 ℃, the stirring speed is 80r/min, and the stirring time is 30 minutes, thus obtaining the finished product.
Example 6
A glass glaze capacitor comprises a packaging medium and a sealing film layer, wherein the packaging medium is formed by mixing 100 parts of glass glaze powder, 6 parts of adhesive and 90 parts of methacrylic acid-maleic anhydride copolymer powder; methacrylic acid-maleic anhydride copolymer powder is prepared from methacrylic acid, maleic anhydride and a photoinitiator in a mass ratio of 1:2:0.3, and copolymerizing under ultraviolet irradiation.
The sealing film layer is made of aluminum, and the photoinitiator is a photoinitiator-651.
In this embodiment, the preparation method of the glass-glazed capacitor includes the following steps:
(1) Under the condition that a photoinitiator exists, methacrylic acid and maleic anhydride are subjected to copolymerization reaction under the irradiation of ultraviolet light, the wavelength of the ultraviolet light is 350nm, the copolymerization reaction condition is that the reaction is carried out for 3 hours at 120 ℃, and methacrylic acid-maleic anhydride copolymer powder is obtained after the copolymerization reaction is finished by centrifugation and drying;
(2) Mixing and stirring the obtained methacrylic acid-maleic anhydride copolymer powder and glass glaze powder to obtain a packaging medium;
(3) Adding the methacrylic acid-maleic anhydride copolymer powder obtained in the step (1), the packaging medium obtained in the step (2) and the adhesive into a stirring kettle, stirring to obtain slurry, coating the slurry on a sealing film layer, and then carrying out vacuum drying, rolling, cutting, lamination, shell entering, sealing and liquid injection, wherein the vacuum drying time is 10 hours, the drying temperature is 110 ℃, the stirring speed is 80r/min, and the stirring time is 30 minutes, thus obtaining the finished product.
Comparative example 1
The comparative example is a glass glaze capacitor of a high voltage ceramic chip capacitor sold in the market.
The glass-glazed capacitors obtained in examples 1 to 6 and comparative example 1 were subjected to performance test:
after the glass glaze capacitors obtained in examples 1 to 6 and comparative example 1 were used for 3 months, the capacitance loss tangent values thereof were measured, and the glass glaze capacitors obtained in examples 1 to 6 and comparative example 1 were measured using an LCR tester, with a set frequency of 120HZ, and a gold film capacitance of 1KHZ, and the test results were shown in Table 1 below:
TABLE 1
| Project | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Example 6 | Comparative example 1 |
| Loss tangent of capacitance | 0.0013 | 0.0012 | 0.0010 | 0.0009 | 0.0008 | 0.0007 | 0.0015 |
As can be seen from examples 1-6 and comparative example 1 of Table 1 above, a glass-glazed capacitor prepared according to the present invention has a smaller capacitance loss tangent value after chelation of metal particles by methacrylic acid-maleic anhydride copolymer in glass-glazed medium, compared with comparative example 1, indicating that the capacitor prepared according to the technical scheme of the present invention has better performance.
To evaluate the specific capacitance of the glass enamel capacitors prepared in accordance with the invention, the specific capacitances of the glass enamel capacitors of examples 1 to 6 and comparative example 1 at a current of 5A were measured by cyclic voltammetry, and the measurement results are shown in Table 2:
TABLE 2
| Project | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Example 6 | Comparative example 1 |
| Specific capacitance (F/g) | 203.4 | 203.2 | 202.7 | 202.6 | 202.3 | 201.6 | 188.5 |
As can be seen from examples 1-6 and comparative example 1 of table 2 above, a glass-glazed capacitor prepared according to the present invention has a better specific capacitance at the same current than comparative example 1 by providing multiple layers of glass-glazed dielectric layers.
The above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered by the scope of the claims of the present invention.
Claims (8)
1. The glass glaze capacitor is characterized by comprising a packaging medium and a sealing film layer, wherein the packaging medium is formed by mixing 50-100 parts of glass glaze powder, 1-6 parts of adhesive and 40-90 parts of methacrylic acid-maleic anhydride copolymer powder; the methacrylic acid-maleic anhydride copolymer powder is prepared from methacrylic acid, maleic anhydride and a photoinitiator in a mass ratio of 1:1-3:0.2-0.4, and copolymerizing under ultraviolet irradiation.
2. A glass-glazed capacitor according to claim 1, wherein: the sealing film layer is made of one of nickel, aluminum, copper and cobalt.
3. A glass-glazed capacitor according to claim 1, wherein: the photoinitiator is photoinitiator-651.
4. A method of manufacturing a glass-glazed capacitor as claimed in any one of claims 1 to 3, wherein: the method comprises the following steps:
(1) Under the condition that a photoinitiator exists, methacrylic acid and maleic anhydride are subjected to copolymerization reaction under the irradiation of ultraviolet light, and after the copolymerization reaction is finished, the methacrylic acid-maleic anhydride copolymer powder is obtained through centrifugation and drying;
(2) Mixing and stirring the obtained methacrylic acid-maleic anhydride copolymer powder and glass glaze powder to obtain mixed powder;
(3) And (3) adding the mixed powder obtained in the step (2) and the adhesive into a stirring kettle, stirring to obtain slurry, coating the slurry on a sealing film layer, and performing vacuum drying, rolling, cutting, laminating, shell entering, sealing and liquid injection to obtain a finished product.
5. The method for manufacturing a glass-glazed capacitor according to claim 4, wherein: the wavelength of ultraviolet light in the step (1) is 340-365nm.
6. The method for manufacturing a glass-glazed capacitor according to claim 4, wherein: the condition of the copolymerization reaction in the step (1) is that the reaction is carried out for 2-4 hours at the temperature of 110-130 ℃.
7. The method for manufacturing a glass-glazed capacitor according to claim 4, wherein: and (3) performing vacuum drying for 8-12h at 100-120 ℃.
8. The method for manufacturing a glass-glazed capacitor according to claim 4, wherein: in the step (3), the stirring speed is 70-90r/min, and the stirring time is 20-40min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111190286.0A CN113972068B (en) | 2021-10-13 | 2021-10-13 | Glass glaze capacitor and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111190286.0A CN113972068B (en) | 2021-10-13 | 2021-10-13 | Glass glaze capacitor and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113972068A CN113972068A (en) | 2022-01-25 |
| CN113972068B true CN113972068B (en) | 2023-08-11 |
Family
ID=79587476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111190286.0A Active CN113972068B (en) | 2021-10-13 | 2021-10-13 | Glass glaze capacitor and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113972068B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57170839A (en) * | 1981-04-15 | 1982-10-21 | Matsushita Electric Works Ltd | Glaze composition |
| CN1499545A (en) * | 2002-10-30 | 2004-05-26 | ������������ʽ���� | Method for making raw dielectric ceramic powder, dielectric ceramic and monolithic ceramic capacitor |
| CN1847183A (en) * | 2005-04-11 | 2006-10-18 | 三星电机株式会社 | Glass frit for dielectrics, multilayer ceramic capacitor, and method for manufacturing the same |
| CN105036557A (en) * | 2015-07-29 | 2015-11-11 | 无锡隆傲电子有限公司 | Ceramic glass glaze slurry and ceramic capacitor manufactured by using same |
| JP2015231924A (en) * | 2014-06-10 | 2015-12-24 | 日油株式会社 | Slurry composition for manufacturing laminate ceramic capacitor and ceramic green sheet |
| CN111269448A (en) * | 2020-03-20 | 2020-06-12 | 清华大学 | Dielectric film, preparation method thereof and film capacitor |
| CN111668024A (en) * | 2020-06-05 | 2020-09-15 | 国家电网有限公司 | Capacitor using modified polypropylene film medium |
| CN113488342A (en) * | 2021-07-02 | 2021-10-08 | 鹏盛国能(深圳)新能源集团有限公司 | Solid electrolyte material for tantalum capacitor lithium battery and preparation method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7098525B2 (en) * | 2003-05-08 | 2006-08-29 | 3M Innovative Properties Company | Organic polymers, electronic devices, and methods |
| US7830644B2 (en) * | 2007-03-05 | 2010-11-09 | Northop Grumman Systems Corporation | High dielectric capacitor materials and method of their production |
| US8675345B2 (en) * | 2008-12-22 | 2014-03-18 | Daikin Industries, Ltd. | Film for film capacitor and film capacitor |
-
2021
- 2021-10-13 CN CN202111190286.0A patent/CN113972068B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57170839A (en) * | 1981-04-15 | 1982-10-21 | Matsushita Electric Works Ltd | Glaze composition |
| CN1499545A (en) * | 2002-10-30 | 2004-05-26 | ������������ʽ���� | Method for making raw dielectric ceramic powder, dielectric ceramic and monolithic ceramic capacitor |
| CN1847183A (en) * | 2005-04-11 | 2006-10-18 | 三星电机株式会社 | Glass frit for dielectrics, multilayer ceramic capacitor, and method for manufacturing the same |
| JP2015231924A (en) * | 2014-06-10 | 2015-12-24 | 日油株式会社 | Slurry composition for manufacturing laminate ceramic capacitor and ceramic green sheet |
| CN105036557A (en) * | 2015-07-29 | 2015-11-11 | 无锡隆傲电子有限公司 | Ceramic glass glaze slurry and ceramic capacitor manufactured by using same |
| CN111269448A (en) * | 2020-03-20 | 2020-06-12 | 清华大学 | Dielectric film, preparation method thereof and film capacitor |
| CN111668024A (en) * | 2020-06-05 | 2020-09-15 | 国家电网有限公司 | Capacitor using modified polypropylene film medium |
| CN113488342A (en) * | 2021-07-02 | 2021-10-08 | 鹏盛国能(深圳)新能源集团有限公司 | Solid electrolyte material for tantalum capacitor lithium battery and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113972068A (en) | 2022-01-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106800733B (en) | A kind of composite microwave medium material, substrate for printed circuit board and its manufacturing method with its production | |
| CN113972068B (en) | Glass glaze capacitor and preparation method thereof | |
| CN104036876B (en) | A kind of preparation method of high temperature copper electric slurry | |
| CN115368607B (en) | Polyether sulfone-based composite dielectric film material and preparation method thereof | |
| CN111470862A (en) | Ceramic slurry, preparation method of ceramic casting film and chip multilayer ceramic capacitor | |
| CN111777898B (en) | Preparation method of high-solid acrylic resin and coating thereof | |
| CN115359947A (en) | Preparation method of inner electrode silver paste for chip ZnO piezoresistor | |
| CN113122022B (en) | Preparation method of hydrolysis-resistant modified AlN nano powder | |
| CN106128547B (en) | A kind of electronic device electrode slurry and preparation method thereof | |
| CN107689298A (en) | The preparation method and single layer of chips capacitor of a kind of single layer of chips capacitor | |
| CN1473273A (en) | Method and apparatus of nondestructive insulation test for small electric machine | |
| CN113096963B (en) | Gel electrolyte aluminum electrolytic capacitor and preparation method thereof | |
| CN114188157A (en) | Semidry method forming process of high-power multilayer chip capacitor | |
| CN112638143B (en) | Efficient electromagnetic shielding nano silver paste and preparation method thereof | |
| CN106941046A (en) | A kind of metallic film capacitor and preparation method thereof | |
| CN102709014A (en) | Manufacture method of sheet film voltage divider | |
| KR20230002437A (en) | Carboxylic acid-containing nickel powder and method for producing carboxylic acid-containing nickel powder | |
| JP2023502945A (en) | Compositions, polymers for capacitors and capacitors | |
| CN112047631A (en) | Lead-free low-temperature sintering encapsulation glass slurry and preparation method thereof | |
| CN114149768B (en) | Temporary bonding glue for wafer processing, preparation method and application thereof | |
| CN115483025B (en) | Preparation process of mica sheet capacitor | |
| CN113838670B (en) | High-precision multilayer chip capacitor forming process and capacitor thereof | |
| TWI506031B (en) | Ferric salt oxidant, solid electrolytic capacitor, and method for fabricating the same | |
| CN114050053B (en) | Preparation method of flexible ceramic film capacitor | |
| CN117219440A (en) | Method for improving MLCC end-capped pinholes by utilizing negative pressure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20230705 Address after: 646000 No.9 Chuangxin Road, Jiangyang District, Luzhou City, Sichuan Province (self declaration) Applicant after: Sichuan shengrongda capacitive resistance Technology Co.,Ltd. Address before: 518000 room 1511, block B, phase II, Sunshine Technology Innovation Center, Nanshan community, Nanshan street, Nanshan District, Shenzhen City, Guangdong Province Applicant before: Pengsheng Guoneng (Shenzhen) New Energy Group Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |