CN106398140A - Capacitor film material with high adhesiveness with metallic layer - Google Patents

Capacitor film material with high adhesiveness with metallic layer Download PDF

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Publication number
CN106398140A
CN106398140A CN201610944982.9A CN201610944982A CN106398140A CN 106398140 A CN106398140 A CN 106398140A CN 201610944982 A CN201610944982 A CN 201610944982A CN 106398140 A CN106398140 A CN 106398140A
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parts
polyethylene terephthalate
film material
capacitor film
antioxidant
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CN106398140B (en
Inventor
胡忠胜
华玲萍
吴良军
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Anhui Feida Electrical Technology Co Ltd
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Anhui Feida Electrical Technology Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • 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
    • H01G4/14—Organic dielectrics
    • H01G4/18—Organic dielectrics of synthetic material, e.g. derivatives of cellulose
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2427/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2427/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2427/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C08J2427/18—Homopolymers or copolymers of tetrafluoroethylene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2479/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen, or carbon only, not provided for in groups C08J2461/00 - C08J2477/00
    • C08J2479/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
    • C08J2479/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/08—Stabilised against heat, light or radiation or oxydation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/16—Applications used for films
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/20—Applications use in electrical or conductive gadgets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Power Engineering (AREA)
  • Materials Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)

Abstract

The invention discloses a capacitor film material with high adhesiveness with a metallic layer and belongs to the technical field of electronic components. The capacitor film material is specifically prepared from the following substances: modified diethyl polyterephthalate, polyimide, polytetrafluoroethylene, calcium carbonate, nano-silica, dibutyl phthalate, an antioxidant, a thermal stabilizer and an ultraviolet absorbent. According to the material disclosed by the invention, a film prepared from the material has good adhesiveness with a metallic zinc coating, a zinc-aluminum two-layer coating structural form can be adopted, and the existing metallic layer aluminum-zinc-aluminum triple-layer coating structure of a metallized film for capacitors is simplified, so that the increase of production efficiency is facilitated, and the production cost is reduced; during actual use, the film and the coating are in tight and stable adhered combination, the residual of internal air is reduced, then, the probability of air breakdown in a high-pressure state is lowered, and finally, the service life of each capacitor can be prolonged by 15% or more.

Description

A kind of capacitor film material high with metal level tack
Technical field
The invention belongs to electronic component technology field is and in particular to a kind of capacitor film material high with metal level tack Material.
Background technology
Nonpolarity, insulation impedance is very high, frequency characteristic excellent (frequency response is broad) due to having for thin film capacitor, and The good characteristics such as dielectric loss very little and be widely used on analog circuit.Thin film capacitor is to work as electrode with metal forming, will Itself and poly- ethyl ester, polypropylene, the plastic-based film such as polystyrene or Merlon, after the overlap of two ends, it is wound into the structure of cylindrical shape Make referred to as capacitor.Because metal foil thickness is thicker, the development that increasingly becomes more meticulous with electric elements, but instead of be metal Coating, that is, plating layer of metal film on original film top layer, so can significantly improve the dimensional problem of components and parts.
At present, the metallized film being commonly used in manufacture thin film capacitor is composite zinc-aluminum metallized film.I.e. first Film is aluminized although it is oxidized easily in atmosphere and is formed with alundum (Al2O3) for Main Ingredients and Appearance compact oxidation layer, Metallized film can be stoped oxidized further, but when working under ac high-voltage high current, this oxide layer can lead to electric capacity The capacity of device declines rapidly；Can prevent internal layer from plating well for this reason, plating one layer of zinc on the basis of metallized film is aluminized again Aluminium lamination forms oxide layer, thus not there is the rapid situation about declining of capacity of capacitor, but metallized film zinc coat is also Originality is higher, in atmosphere oxidized speed faster and aoxidize formed zinc oxide there is fluffy structure it is difficult to stop into The generation of one step oxidation, therefore metallized film zinc coat not only are difficult to process in processing, and are easily caused capacitor and send out The accident that hair tonic heat even punctures；For this reason, also need to metallized film aluminize zinc-plated on the basis of plate one layer of aluminium again, thus rise Effect to protection metallized film zinc coat.Thus it is found that existing plating process is complex, and in order to improve it Plating effect, generally also needs to carry out the special surface treatment such as corona to film, undoubtedly increased manufacturing cost, even if such as This, still suffer from two-layer in actual use and come off, and produces hole, and the problem of impact capacitor performance occurs.
Content of the invention
The present invention is intended to provide a kind of capacitor film material high with metal level tack, existing capacitor can be simplified and use The structure of metallized film metal level aluminium zinc-aluminium triple-layer coating, optimizes manufacture craft.
The present invention is achieved through the following technical solutions：
A kind of capacitor film material high with metal level tack, is made up of the material of following weight portion：
100 ~ 120 parts of modified polyethylene terephthalate, 10 ~ 15 parts of polyimides, 10 ~ 15 parts of polytetrafluoroethylene (PTFE), 1 ~ 3 part of carbon Sour calcium, 2 ~ 4 parts of nano silicons, 2 ~ 4 parts of dibutyl phthalates, 1 ~ 3 part of antioxidant, 1 ~ 3 part of heat stabilizer, 1 ~ 3 part Ultra-violet absorber；Described modification polyethylene terephthalate is made up of the material of following weight portion：180 ~ 200 parts are gathered to benzene Dicarboxylate, 5 ~ 10 parts of oxolanes, 6 ~ 8 parts of silane couplers, 15 ~ 20 parts of polypropylene grafted maleic anhydrides, 5 ~ 7 parts of sulphur Carbamide resin, 4 ~ 6 parts of amido carboxylic acid resins, 3 ~ 6 parts of polymethyl methacrylates, 4 ~ 7 parts of lauryl sodium sulfate.
Preferably, it is made up of the material of following weight portion：
110 parts of modified polyethylene terephthalate, 12 parts of polyimides, 13 parts of polytetrafluoroethylene (PTFE), 2 parts of calcium carbonate, 3 parts of nanometers Silica, 3 parts of dibutyl phthalates, 2 parts of antioxidant, 2 parts of heat stabilizers, 1 part of ultra-violet absorber；Described modified poly- Diethyl terephthalate is made up of the material of following weight portion：190 parts of polyethylene terephthalate, 8 parts of oxolanes, 7 Part silane coupler, 17 parts of polypropylene grafted maleic anhydrides, 6 parts of thiourea resins, 5 parts of amido carboxylic acid resins, 5 parts of polymethyls Sour methyl esters, 6 parts of lauryl sodium sulfate.
Further, described antioxidant be antioxidant 1076, antioxidant 164, any one in anti-oxidant DLTP.
Further, described heat stabilizer be triphenyl phosphite, any one in triphenyl phosphate.
Further, described ultra-violet absorber be septichen phenyl ester, ESCALOL 567, Any one in UV-531.
Further, the preparation method of described modification polyethylene terephthalate is：By polyethylene terephthalate Put in reactor, control the temperature in reactor to be 273 ~ 278 DEG C, pressure is 120 ~ 150Pa, then by oxolane, silicon Alkane coupling agent, polypropylene grafted maleic anhydride, thiourea resin, amido carboxylic acid resin, polymethyl methacrylate, dodecyl sulphur Sour sodium mixes addition jointly, and is stirred continuously after 2 ~ 3h with 1500 ~ 1800 revs/min of rotating speed.
The present invention has the advantages that：
The present invention with polyethylene terephthalate for main material composition, then by it with polypropylene grafted maleic anhydride, thiocarbamide The mixed and modified process jointly such as resin, amido carboxylic acid resin, changes the type and quantity of its polar group so as to metallic zinc Coating has good compatibility, and the composition such as the polyimides that simultaneously adds, polytetrafluoroethylene (PTFE), calcium carbonate, nano silicon carries High film temperature-resistance characteristic, further ensures the adhesion stability between film and metal zinc coating during capacitor work.Each Under the comprehensive function of composition, the film that material of the present invention is made is good with the tack of metal zinc coating, can adopt zinc-aluminium two-layer The version of plated film, simplifies the structure of existing capacitor metallized film metal level aluminium zinc-aluminium triple-layer coating, from And be conducive to improve production efficiency, reduce production cost, in actual use, because of attachment combination between film and coating Closely, stable, decrease the residual of inner air, and then reduce the probability producing air breakdown under high pressure conditions, finally may be used The service life of capacitor is extended more than 15%.
Specific embodiment
Embodiment 1
A kind of capacitor film material high with metal level tack, is made up of the material of following weight portion：
100 parts of modified polyethylene terephthalate, 10 parts of polyimides, 10 parts of polytetrafluoroethylene (PTFE), 1 part of calcium carbonate, 2 parts of nanometers Silica, 2 parts of dibutyl phthalates, 1 part of antioxidant, 1.5 parts of heat stabilizers, 2 parts of ultra-violet absorbers；Described modification Polyethylene terephthalate is made up of the material of following weight portion：200 parts of polyethylene terephthalate, 10 parts of tetrahydrochysene furans Mutter, 8 parts of silane couplers, 20 parts of polypropylene grafted maleic anhydrides, 7 parts of thiourea resins, 6 parts of amido carboxylic acid resins, 6 parts of poly- methyl Methyl acrylate, 6 parts of lauryl sodium sulfate.
Further, described antioxidant is antioxidant 1076.
Further, described heat stabilizer is triphenyl phosphite.
Further, described ultra-violet absorber is septichen phenyl ester.
Further, the preparation method of described modification polyethylene terephthalate is：By polyethylene terephthalate Put in reactor, control the temperature in reactor to be 273 ~ 275 DEG C, pressure is 120 ~ 130Pa, then by oxolane, silicon Alkane coupling agent, polypropylene grafted maleic anhydride, thiourea resin, amido carboxylic acid resin, polymethyl methacrylate, dodecyl sulphur Sour sodium mixes addition jointly, and is stirred continuously after 2h with 1600 revs/min of rotating speed.
Embodiment 2
A kind of capacitor film material high with metal level tack, is made up of the material of following weight portion：
110 parts of modified polyethylene terephthalate, 12 parts of polyimides, 13 parts of polytetrafluoroethylene (PTFE), 2 parts of calcium carbonate, 3 parts of nanometers Silica, 3 parts of dibutyl phthalates, 2 parts of antioxidant, 2 parts of heat stabilizers, 1 part of ultra-violet absorber；Described modified poly- Diethyl terephthalate is made up of the material of following weight portion：190 parts of polyethylene terephthalate, 8 parts of oxolanes, 7 Part silane coupler, 17 parts of polypropylene grafted maleic anhydrides, 6 parts of thiourea resins, 5 parts of amido carboxylic acid resins, 5 parts of polymethyls Sour methyl esters, 6 parts of lauryl sodium sulfate.
Further, described antioxidant is anti-oxidant DLTP.
Further, described heat stabilizer is triphenyl phosphate.
Further, described ultra-violet absorber is UV-531.
Further, the preparation method of described modification polyethylene terephthalate is：By polyethylene terephthalate Put in reactor, control the temperature in reactor to be 275 ~ 278 DEG C, pressure is 140 ~ 150Pa, then by oxolane, silicon Alkane coupling agent, polypropylene grafted maleic anhydride, thiourea resin, amido carboxylic acid resin, polymethyl methacrylate, dodecyl sulphur Sour sodium mixes addition jointly, and is stirred continuously after 3h with 1800 revs/min of rotating speed.
Comparative example 1
This comparative example 1 compared with Example 1, does not do any modification to polyethylene terephthalate, i.e. the weight such as use The common polyethylene terephthalate of amount part replaces modified polyethylene terephthalate, and method and step in addition is homogeneous With.
Comparative example 2
This comparative example 2 compared with Example 2, without polytetrafluoroethylene (PTFE), calcium carbonate and nano silicon in its composition Composition, method and step all same in addition.
Control group
Existing metallized film, its structure is aluminium zinc-aluminium triple-layer coating structure.
In order to contrast effect of the present invention, by embodiment 1, embodiment 2, comparative example 1, material described in comparative example 2 The film made carries out zinc-aluminium two-layer coating film treatment, is then respectively prepared specification identical with the metallized film of control group thin Membrane capacitance, all materials composition all same in addition to metallized film, carry out the test such as corresponding life-span, table 1 below is corresponding Correction data：
Table 1
Life-span duration（Ratio） Breakdown probability（Ratio）
Embodiment 1 1.17 0.37
Embodiment 2 1.19 0.35
Comparative example 1 1.07 0.88
Comparative example 2 1.11 0.65
Control group 1 1
Note：Life-span duration in upper table and breakdown probability are all on the basis of the statistic of control group, the ratio being calculated； Wherein said breakdown probability refers to plating intermediate peeling, the probability of air breakdown occur because of film.
As can be seen from the above table, the capacitor film that material of the present invention is made has good metal adhesion, can be very well Prolongation capacitor service life, improve its use stability.

Claims (6)

1. a kind of capacitor film material high with metal level tack is it is characterised in that be made up of the material of following weight portion：
100 ~ 120 parts of modified polyethylene terephthalate, 10 ~ 15 parts of polyimides, 10 ~ 15 parts of polytetrafluoroethylene (PTFE), 1 ~ 3 part of carbon Sour calcium, 2 ~ 4 parts of nano silicons, 2 ~ 4 parts of dibutyl phthalates, 1 ~ 3 part of antioxidant, 1 ~ 3 part of heat stabilizer, 1 ~ 3 part Ultra-violet absorber；Described modification polyethylene terephthalate is made up of the material of following weight portion：180 ~ 200 parts are gathered to benzene Dicarboxylate, 5 ~ 10 parts of oxolanes, 6 ~ 8 parts of silane couplers, 15 ~ 20 parts of polypropylene grafted maleic anhydrides, 5 ~ 7 parts of sulphur Carbamide resin, 4 ~ 6 parts of amido carboxylic acid resins, 3 ~ 6 parts of polymethyl methacrylates, 4 ~ 7 parts of lauryl sodium sulfate.
2. a kind of capacitor film material high with metal level tack according to claim 1 is it is characterised in that by such as The material of lower weight portion is made：
110 parts of modified polyethylene terephthalate, 12 parts of polyimides, 13 parts of polytetrafluoroethylene (PTFE), 2 parts of calcium carbonate, 3 parts of nanometers Silica, 3 parts of dibutyl phthalates, 2 parts of antioxidant, 2 parts of heat stabilizers, 1 part of ultra-violet absorber；Described modified poly- Diethyl terephthalate is made up of the material of following weight portion：190 parts of polyethylene terephthalate, 8 parts of oxolanes, 7 Part silane coupler, 17 parts of polypropylene grafted maleic anhydrides, 6 parts of thiourea resins, 5 parts of amido carboxylic acid resins, 5 parts of polymethyls Sour methyl esters, 6 parts of lauryl sodium sulfate.
3. a kind of capacitor film material high with metal level tack according to claim 1 and 2 it is characterised in that Described antioxidant is antioxidant 1076, antioxidant 164, any one in anti-oxidant DLTP.
4. a kind of capacitor film material high with metal level tack according to claim 1 and 2 it is characterised in that Described heat stabilizer is triphenyl phosphite, any one in triphenyl phosphate.
5. a kind of capacitor film material high with metal level tack according to claim 1 and 2 it is characterised in that Described ultra-violet absorber is septichen phenyl ester, ESCALOL 567,2- hydroxyl -4- n-octyloxy Any one in benzophenone.
6. a kind of capacitor film material high with metal level tack according to claim 1 and 2 it is characterised in that Described modification polyethylene terephthalate preparation method be：Polyethylene terephthalate is put in reactor, controls Temperature in reactor is 273 ~ 278 DEG C, and pressure is 120 ~ 150Pa, then connects oxolane, silane coupler, polypropylene Branch maleic anhydride, thiourea resin, amido carboxylic acid resin, polymethyl methacrylate, lauryl sodium sulfate mix addition jointly, And be stirred continuously after 2 ~ 3h with 1500 ~ 1800 revs/min of rotating speed.
CN201610944982.9A 2016-10-26 2016-10-26 A kind of and high capacitor film material of metal layer adhesion Active CN106398140B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108257783A (en) * 2017-12-30 2018-07-06 汪逸凡 A kind of preparation method of the capacitor metalized film of automatic reduction type

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102850567A (en) * 2012-09-21 2013-01-02 中国科学院理化技术研究所 Preparation method of material with oriented growth structure cells
CN102991053A (en) * 2011-09-09 2013-03-27 达迈科技股份有限公司 Multilayer polyimide film and process for producing the same
CN104385770A (en) * 2014-12-05 2015-03-04 四川科伦药业股份有限公司 Stripping method of three-layer composite film based on medicinal packaging
CN105372864A (en) * 2014-09-01 2016-03-02 中华映管股份有限公司 Method for manufacturing display panel

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102991053A (en) * 2011-09-09 2013-03-27 达迈科技股份有限公司 Multilayer polyimide film and process for producing the same
CN102850567A (en) * 2012-09-21 2013-01-02 中国科学院理化技术研究所 Preparation method of material with oriented growth structure cells
CN105372864A (en) * 2014-09-01 2016-03-02 中华映管股份有限公司 Method for manufacturing display panel
CN104385770A (en) * 2014-12-05 2015-03-04 四川科伦药业股份有限公司 Stripping method of three-layer composite film based on medicinal packaging

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108257783A (en) * 2017-12-30 2018-07-06 汪逸凡 A kind of preparation method of the capacitor metalized film of automatic reduction type
CN108257783B (en) * 2017-12-30 2019-12-03 山东众鑫电子材料有限公司 A kind of preparation method of the capacitor metalized film of automatic reduction type

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