CN103996536B - A kind of capacitor metallized film - Google Patents
A kind of capacitor metallized film Download PDFInfo
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- CN103996536B CN103996536B CN201410266607.4A CN201410266607A CN103996536B CN 103996536 B CN103996536 B CN 103996536B CN 201410266607 A CN201410266607 A CN 201410266607A CN 103996536 B CN103996536 B CN 103996536B
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- plastic sheeting
- coat
- metallized film
- metal
- zinc
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Abstract
The invention discloses a kind of capacitor metallized film; including plastic sheeting bottom and the coat of metal; the described coat of metal includes directly contacting the zinc coat of described plastic sheeting bottom and is positioned at the aluminium coated of described Several Thiourea Derivatives on Zinc Plate Surface and is positioned at the aluminium sesquioxide dense protective layer on described aluminium coated surface, the polymer of the various of monomer composition copolymerization that described plastic sheeting primer is a kind of monomer component homopolymerization containing polar group or at least one monomer component contains polar group；Described plastic sheeting bottom is for contacting the face of the described coat of metal through the Corona discharge Treatment under the gaseous mixture protection of noble gas and hydrogen.A kind of capacitor metallized film of the present invention, it is possible to simplify existing capacitor metallized film metal level aluminum zinc-aluminium triple-layer coating structure.The invention also discloses the processing technique of above-mentioned capacitor metallized film.
Description
Technical field
The present invention relates to a kind of capacitor metallized film and processing technique thereof, belong to capacitor metallized film manufacturing technology field.
Background technology
The metallized film being presently used for manufacturing thin film capacitor is composite zinc-aluminum metallized film.Metallized film of aluminizing has preferable adhesion property, and production process is easily handled, but metallized film of aluminizing is oxidized easily in atmosphere and is formed with aluminium sesquioxide for Main Ingredients and Appearance compact oxidation layer, although this oxide layer can stop metallized film the most oxidized, but when working under the big electric current of ac high-voltage, this oxide layer can cause the capacity of capacitor to decline rapidly；For this, plating one layer of zinc on the basis of metallized film is aluminized again can prevent internal layer aluminium coated from forming oxide layer well, from the situation without occurring the capacity of capacitor to decline rapidly, but metallized film zinc coat reproducibility is higher, the most oxidized speed faster and oxidation formed zinc oxide there is fluffy structure, it is difficult to stop the generation of oxidation further, therefore metallized film zinc coat not only is difficult to process adding man-hour, and is easily caused the accident that capacitor occurs heating even to puncture；To this end, also need to metallized film aluminize zinc-plated on the basis of plate one layer of aluminum again, thus play the effect of protection metallized film zinc coat.
Summary of the invention
It is an object of the invention to provide a kind of capacitor metallized film, it is possible to simplify existing capacitor metallized film metal level aluminum-zinc-aluminum triple-layer coating structure.
For solving the problems referred to above, the technical solution used in the present invention is as follows:
A kind of capacitor metallized film, including:
Plastic sheeting bottom and the coat of metal; the described coat of metal includes directly contacting the zinc coat of described plastic sheeting bottom and is positioned at the aluminium coated of described Several Thiourea Derivatives on Zinc Plate Surface and is positioned at the aluminium sesquioxide dense protective layer on described aluminium coated surface, the polymer of the various of monomer composition copolymerization that described plastic sheeting primer is a kind of monomer component homopolymerization containing polar group or at least one monomer component contains polar group；
Described plastic sheeting bottom is for contacting the face of the described coat of metal through the Corona discharge Treatment under the gaseous mixture protection of noble gas and hydrogen.
As the improvement of technique scheme, described plastic sheeting primer is poly-ethyl ester, polypropylene or Merlon.
Present invention also offers the processing technique of a kind of capacitor metallized film, comprise the steps:
Step one, plastic sheeting bottom is carried out Corona discharge Treatment for contacting the face of the described coat of metal under the gaseous mixture of noble gas and hydrogen is protected；
Step 2, employing sputter coating or vacuum evaporation mode form zinc coat in the face of the plastic sheeting bottom processed through step one, then plate one layer of aluminium coated again at Several Thiourea Derivatives on Zinc Plate Surface；
Step 3, under the protection of noble gas, be passed through ozone and the aluminium coated surface processed through step 2 carried out ozonation treatment to generate aluminium sesquioxide dense protective layer.
As the further optimization to above-mentioned processing technique, in described step one, in the gaseous mixture of noble gas and hydrogen, volume shared by hydrogen is 0.1～1.0%, and remaining is noble gas.
As the further optimization to above-mentioned processing technique, in described step one, the process conditions of Corona discharge Treatment are 10～40 J/cm2.Described 10～40 J/cm2In, energy unit refers to process during Corona discharge Treatment the product of clean voltage and net current, and square measure refers to the processing area of plastic sheeting bottom；Wherein, the process voltage of common Corona discharge Treatment is 5000 V～15000 V.
Compared with prior art, the implementation result of the present invention is as follows for the present invention:
A kind of capacitor metallized film of the present invention, by described plastic sheeting bottom is processed for the face contacting the described coat of metal, improve the bond strength of plastic sheeting bottom and metal, it is achieved thereby that adhesion property good between zinc coat and plastic sheeting bottom, use zinc-aluminum two-layer coating structure, simplify existing capacitor metallized film metal level aluminum-zinc-aluminum triple-layer coating structure, thus be conducive to improving production efficiency, reduce production cost；And use active oxygen metaplasia become the technique of aluminium sesquioxide dense protective layer make aluminium sesquioxide dense protective layer structure evenly, fine and close, improve the anti-oxidation protection ability to the coat of metal of aluminium sesquioxide dense protective layer.
Detailed description of the invention
Present disclosure is described below in conjunction with specific embodiments.
The capacitor metallized film that the present embodiment provides; including: plastic sheeting bottom and the coat of metal; the described coat of metal includes directly contacting the zinc coat of described plastic sheeting bottom and is positioned at the aluminium coated of described Several Thiourea Derivatives on Zinc Plate Surface and is positioned at the aluminium sesquioxide dense protective layer on described aluminium coated surface, the polymer of the various of monomer composition copolymerization that described plastic sheeting primer is a kind of monomer component homopolymerization containing polar group or at least one monomer component contains polar group；Described plastic sheeting bottom is for contacting the face of the described coat of metal through the Corona discharge Treatment under the gaseous mixture protection of noble gas and hydrogen.
Described structure that is be followed successively by from top to bottom four tunics constitute: aluminium sesquioxide dense protective layer, aluminium coated, zinc coat, plastic sheeting bottom.The aluminium coated between one layer of zinc coat and plastic sheeting bottom is decreased relative to prior art；Owing to zinc is more weak for the adhesive force of plastic sheeting bottom relative to aluminum; therefore prior art needs to need to arrange one layer of aluminium coated between zinc coat and plastic sheeting bottom; to help fixing zinc coat; and the present invention is by processing for the face contacting the described coat of metal described plastic sheeting bottom; the i.e. gaseous mixture at noble gas and hydrogen carries out Corona discharge Treatment under protecting; improve the bond strength of plastic sheeting bottom and metal, it is achieved thereby that adhesion property good between zinc coat and plastic sheeting bottom.Being known by actual tests, its plastic sheeting bottom of capacitor metallized film that the present embodiment provides is firmly combined with the coat of metal, and the use process in ordinary life does not haves the situation that plastic sheeting bottom is peeled off with the coat of metal.
Specifically, described plastic sheeting primer is poly-ethyl ester, polypropylene or Merlon；A kind of monomer component homopolymerization containing polar group or at least one monomer component contain the polymer of the various of monomer composition copolymerization of polar group; it is capable of the well attached performance with zinc coat by carrying out Corona discharge Treatment under protecting at the gaseous mixture of noble gas and hydrogen; and poly-ethyl ester, polypropylene or Merlon all meet above-mentioned requirements; and poly-ethyl ester, polypropylene or Merlon are the widely used thin mold materialss of several plastics in capacitor metallized film at present, it is possible to well adapt to existing technique and equipment.
Its processing technique of capacitor metallized film that the present embodiment provides comprises the steps:
One, plastic sheeting bottom is carried out Corona discharge Treatment for the face contacting the described coat of metal under the gaseous mixture of noble gas and hydrogen is protected.
Specifically, noble gas can select lower-cost high pure nitrogen.Corona discharge Treatment can be specifically at ambient pressure; it is passed through the gaseous mixture of noble gas and hydrogen as protection gas; then by corona discharge assembly, for the face contacting the described coat of metal, plastic sheeting bottom being carried out discharge process, the thread corona from phenomenon with lasting purple or blueness occurs.
Preferably, in the gaseous mixture of described noble gas and hydrogen, volume shared by hydrogen is 0.1～1.0%, and remaining is noble gas；The process conditions of Corona discharge Treatment are 10～40 J/cm2。
Described 10～40 J/cm2In, energy unit refers to process during Corona discharge Treatment the product of clean voltage and net current, and square measure refers to the processing area of plastic sheeting bottom；Wherein, the process voltage of common Corona discharge Treatment is 5000 V～15000 V.Described processes the dividing potential drop that clean voltage refers to that input voltage deduction corona discharge assembly miscellaneous part in addition to discharge component is caused, and the described net current that processes refers to the actual electric current flowing through discharge component.
Two, use sputter coating or vacuum evaporation mode to form zinc coat in the face of the plastic sheeting bottom processed through step one, then plate one layer of aluminium coated again at Several Thiourea Derivatives on Zinc Plate Surface.
Sputter coating or vacuum evaporation mode are technical scheme ripe in prior art, for the present invention, sputter coating or vacuum evaporation process parameter reference values be: the surface temperature control of chilling roll is at 14～17 DEG C, film is 3 ± 1 m/min by the speed of chilling roll, and the vacuum of vacuum chamber should be not more than 5 × 10-3 Pa。
Three, under the protection of noble gas, it is passed through ozone and the aluminium coated surface processed through step 2 is carried out ozonation treatment to generate aluminium sesquioxide dense protective layer.
Described process step can form aluminium sesquioxide dense protective layer on aluminium coated surface; and the accounting of aluminium sesquioxide in aluminium sesquioxide dense protective layer can be improved by ozonation treatment; thus improve uniformity and the compactness of aluminium sesquioxide dense protective layer, prevent aluminium coated in atmosphere slowly, the oxide layer that causes of autoxidation is uneven, complicated components, structure are fine and close not, readily penetrate through air corrodes the situation of aluminium coated internal layer further and occur.
The capacitor metallized film above-mentioned processing technique processed cuts into the lattice of 100 length of side 1.0 ± 0.1 mm, with 3M 600 or 610 adhesive tape sticking on above-mentioned lattice, and cover all lattices, quickly pull-up 3M adhesive tape, the statistical value of the coat of metal quantity come off in lattice is 1 to 2.Test adhesive tape brand and model that 3M 600 or 610 used manufactures for Minnesota Mining and Manufacturing Company.
Above content is detailed description the most made for the present invention, it is impossible to assert that the present invention is embodied as being only limitted to these explanations.For those skilled in the art, without departing from the inventive concept of the premise, it is also possible to make some simple deduction or replace, all should be considered as belonging to the scope of protection of the invention.
Claims (3)
1. the processing technique of a capacitor metallized film; it is characterized in that; capacitor metallized film includes: plastic sheeting bottom and the coat of metal; the described coat of metal includes directly contacting the zinc coat of described plastic sheeting bottom and is positioned at the aluminium coated of described Several Thiourea Derivatives on Zinc Plate Surface and is positioned at the aluminium sesquioxide dense protective layer on described aluminium coated surface, the polymer of the various of monomer composition copolymerization that described plastic sheeting primer is a kind of monomer component homopolymerization containing polar group or at least one monomer component contains polar group；Described plastic sheeting bottom is for contacting the face of the described coat of metal through the Corona discharge Treatment under the gaseous mixture protection of noble gas and hydrogen；And comprise the steps:
Step one, plastic sheeting bottom is carried out Corona discharge Treatment for contacting the face of the described coat of metal under the gaseous mixture of noble gas and hydrogen is protected；
Step 2, employing sputter coating or vacuum evaporation mode form zinc coat in the face of the plastic sheeting bottom processed through step one, then plate one layer of aluminium coated again at Several Thiourea Derivatives on Zinc Plate Surface；
Step 3, under the protection of noble gas, be passed through ozone and the aluminium coated surface processed through step 2 carried out ozonation treatment to generate aluminium sesquioxide dense protective layer.
The processing technique of a kind of capacitor metallized film the most as claimed in claim 1, is characterized in that: in described step one, in the gaseous mixture of noble gas and hydrogen, volume shared by hydrogen is 0.1～1.0%, and remaining is noble gas.
The processing technique of a kind of capacitor metallized film the most as claimed in claim 2, is characterized in that: in described step one, the process conditions of Corona discharge Treatment are 10～40 J/cm2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410266607.4A CN103996536B (en) | 2014-06-16 | 2014-06-16 | A kind of capacitor metallized film |
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| CN201410266607.4A CN103996536B (en) | 2014-06-16 | 2014-06-16 | A kind of capacitor metallized film |
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| CN103996536A CN103996536A (en) | 2014-08-20 |
| CN103996536B true CN103996536B (en) | 2016-08-17 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104347272A (en) * | 2014-11-17 | 2015-02-11 | 苏州科茂电子材料科技有限公司 | Organic thin-film capacitor |
| CN106298242B (en) * | 2016-09-30 | 2018-09-25 | 铜陵市超越电子有限公司 | A kind of metallized film production technology |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1962928A (en) * | 2005-11-10 | 2007-05-16 | 上海奥移电器有限公司 | Film-coating technology for metallized film materials and products thereof |
| CN102543432A (en) * | 2011-12-28 | 2012-07-04 | 宁波大东南万象科技有限公司 | Preparation method of double-side metallized polypropylene capacitor film |
| CN103804789A (en) * | 2013-12-20 | 2014-05-21 | 芜湖金鹰机械科技开发有限公司 | Modified isotatic polypropylene metallized film for capacitor and preparation method of metalized film |
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2014
- 2014-06-16 CN CN201410266607.4A patent/CN103996536B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1962928A (en) * | 2005-11-10 | 2007-05-16 | 上海奥移电器有限公司 | Film-coating technology for metallized film materials and products thereof |
| CN102543432A (en) * | 2011-12-28 | 2012-07-04 | 宁波大东南万象科技有限公司 | Preparation method of double-side metallized polypropylene capacitor film |
| CN103804789A (en) * | 2013-12-20 | 2014-05-21 | 芜湖金鹰机械科技开发有限公司 | Modified isotatic polypropylene metallized film for capacitor and preparation method of metalized film |
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Effective date of registration: 20200811 Address after: Yang Ning Dun San TA Cun 242300 Anhui city in Xuancheng Province, Ningguo City, No. 001 group Patentee after: Song Renxiang Address before: 242300 Wang Xi industrial zone, Xuancheng, Anhui, Ningguo Patentee before: ANHUI NINGGUO HAIWEI ELECTRONICS Co.,Ltd. |
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