Glass glaze capacitor and preparation method thereof

A glass glaze and capacitor technology, applied in the field of capacitors, can solve the problems of noble metal ion migration, capacitor damage, breakdown, etc., and achieve the effect of preventing migration

Active Publication Date: 2022-01-25
四川圣融达容阻科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a glass glaze capacitor and its preparation method, the purpose of which is to solve the problem of the migration of noble metal ions in the glass glaze capacitor, and then breakdown, resulting in damage to the capacitor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A glass glaze capacitor, including packaging medium and sealing film layer, the packaging medium is mixed by 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 formed by mixing methacrylic acid, maleic anhydride and photoinitiator at a mass ratio of 1:1:0.2, and copolymerizing under ultraviolet light irradiation.

[0025] The material of the sealing film layer is aluminum, and the photoinitiator is photoinitiator-651.

[0026] In the present embodiment, the preparation method of glass glaze capacitor comprises the following steps:

[0027] (1) In the presence of a photoinitiator, copolymerize methacrylic acid and maleic anhydride under ultraviolet light irradiation. The wavelength of ultraviolet light is 340nm. The condition of the copolymerization reaction is to react at 110°C for 2 hours, and the copolymerization reaction ends After centrifugatio...

Embodiment 2

[0031] A glass glaze capacitor, including packaging medium and sealing film layer, the packaging medium is mixed by 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 formed by mixing methacrylic acid, maleic anhydride and photoinitiator at a mass ratio of 1:2:0.3, and copolymerizing under ultraviolet light irradiation.

[0032] The material of the sealing film layer is aluminum, and the photoinitiator is photoinitiator-651.

[0033] In the present embodiment, the preparation method of glass glaze capacitor comprises the following steps:

[0034] (1) In the presence of a photoinitiator, methacrylic acid and maleic anhydride are subjected to a copolymerization reaction under ultraviolet light irradiation. The wavelength of ultraviolet light is 350nm. The condition of the copolymerization reaction is to react at 120°C for 3 hours, and the copolymerization r...

Embodiment 3

[0038] A glass glaze capacitor, including packaging medium and sealing film layer, the packaging medium is mixed by 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 formed by mixing methacrylic acid, maleic anhydride and photoinitiator at a mass ratio of 1:3:0.4, and copolymerizing under ultraviolet light irradiation.

[0039] The material of the sealing film layer is nickel, and the photoinitiator is photoinitiator-651.

[0040] In the present embodiment, the preparation method of glass glaze capacitor comprises the following steps:

[0041] (1) In the presence of a photoinitiator, methacrylic acid and maleic anhydride are subjected to a copolymerization reaction under ultraviolet light irradiation. The wavelength of ultraviolet light is 365nm. The condition of the copolymerization reaction is to react at 130°C for 4 hours, and the copolymerization rea...

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Abstract

The invention belongs to the technical field of capacitors, and particularly relates to a glass glaze capacitor and a preparation method thereof. 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; and the methacrylic acid-maleic anhydride copolymer powder is formed by mixing methacrylic acid, maleic anhydride and a photoinitiator according to the mass ratio of 1: (1-3): (0.2-0.4) and copolymerizing under ultraviolet irradiation. According to the technical scheme, in the methacrylic acid-maleic anhydride copolymer prepared through ultraviolet irradiation polymerization, two carbonyl groups formed after ring opening of maleic anhydride in the polymerization process can chelate precious metal ions, binding of the precious metal ions is achieved, and the situation that due to migration of the precious metal ions, a breakdown phenomenon occurs, and a capacitor is damaged is prevented.

Description

technical field [0001] The invention relates to the technical field of capacitors, in particular to a glass glaze capacitor and a preparation method thereof. Background technique [0002] Glass glaze capacitor is a commonly used capacitor device, mainly used in low frequency coupling, filtering and other occasions. The medium is a thin sheet made of glass glaze powder, which has the characteristics of large dielectric coefficient and small volume. Different preparation process methods can obtain dielectrics with different properties, and can also be made into glass glaze capacitors with different properties. [0003] Glass glaze capacitors have the characteristics of large dielectric coefficient, small volume, and low loss. However, as the years of use increase, noble metal ion migration will occur, and then breakdown will occur, resulting in capacitor damage. Contents of the invention [0004] (1) Solved technical problems [0005] Aiming at the deficiencies of the prio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G4/06H01G13/00
CPCH01G4/06H01G13/003Y02E60/13
Inventor 朱少敏刘春燕
Owner 四川圣融达容阻科技有限公司
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