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Low-loss metallized film

A metallized thin film, low loss technology, applied in the field of capacitors, can solve the problems affecting the performance and life of the metallized thin film, the loss of the metal coating, the difficulty of heat dissipation, etc., to solve the problem of breakdown due to heat dissipation and high oxidation resistance Ability to avoid air oxidation effect

Inactive Publication Date: 2017-10-27
ANHUI NINGGUO HAIWEI ELECTRONICS
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  • Claims
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AI Technical Summary

Problems solved by technology

The current film capacitors generally vacuum-deposit a layer of metal electrode coating on the dielectric film. The metal electrode coating is mostly zinc-aluminum coating. It is difficult to dissipate heat when oxidation breakdown occurs, further aggravating the occurrence of oxidation, and the loss of metal coating is large, which affects the performance and life of the metallized film

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  • Low-loss metallized film

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Embodiment Construction

[0014] Such as figure 1 As shown, a low-loss metallized film provided by the present invention includes a dielectric base film 1 on which a silver-zinc-aluminum composite metal layer 2 is arranged, and the silver-zinc-aluminum composite metal layer 2 is provided with an aluminum-coated layer 3, the surface of the aluminum-coated layer 3 is provided with a carbon nanotube layer 4, and the surface 4 of the carbon nanotube layer is provided with a sealing oil protection layer 5.

[0015] The silver-zinc-aluminum composite metal layer 2, due to the introduction of silver, improves the sensitization effect of the dielectric base film, enhances the adhesion between the coating and the dielectric base film, and achieves breakthroughs in performance and oxidation resistance.

[0016] Carbon nanotubes are the most ideal functional fillers for heat-dissipating coatings. They are known as the blackest substance in the world. The emissivity coefficient is close to 1. It is also one of the...

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Abstract

The present invention relates to a low-loss metallized film comprising a dielectric base film. A silver-zinc-aluminum composite metal layer is arranged on the dielectric base film, an aluminum-plated layer is arranged on the surface of the silver-zinc-aluminum composite metal layer, the surface of the aluminum-plated layer is provided with a carbon nano tube layer, the surface of the carbon nano tube layer is provided with a seal oil protective layer, the dielectric base film is a polypropylene film or a polyolefin film, and the seal oil protective layer is made of methyl silicone oil. The metalized film of the invention has high anti-oxidation ability, prevents the film from being oxidized and broken during the process of making capacitors, has low metal layer loss, and solves the problem that the metalized film heat is hard to emit resulting in the continuous oxidative breakdown. The invention also discloses a processing method of the above low-loss metallized film.

Description

technical field [0001] The invention relates to a low-loss metallized film, which belongs to the technical field of capacitors. Background technique [0002] Film capacitors have the advantages of stable capacitance, low loss, excellent withstand voltage characteristics, high insulation resistance, good frequency characteristics, stable performance, and high reliability. They are widely used in electronics, home appliances, communications, electric power and other fields. The current film capacitors generally vacuum-deposit a layer of metal electrode coating on the dielectric film. The metal electrode coating is mostly zinc-aluminum coating. It is difficult to dissipate heat when oxidation breakdown occurs, further aggravating the occurrence of oxidation, and the loss of metal coating is large, which affects the performance and life of the metallized film. Contents of the invention [0003] In order to solve the problems in the prior art, the invention provides a low-loss...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G4/008H01G4/33
CPCH01G4/33H01G4/008
Inventor 宋仁祥
Owner ANHUI NINGGUO HAIWEI ELECTRONICS
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