WO2008093885A1 - 電気絶縁用二軸配向フィルム、それからなるフィルムコンデンサー構成部材およびそれからなるフィルムコンデンサー - Google Patents
電気絶縁用二軸配向フィルム、それからなるフィルムコンデンサー構成部材およびそれからなるフィルムコンデンサー Download PDFInfo
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- WO2008093885A1 WO2008093885A1 PCT/JP2008/051978 JP2008051978W WO2008093885A1 WO 2008093885 A1 WO2008093885 A1 WO 2008093885A1 JP 2008051978 W JP2008051978 W JP 2008051978W WO 2008093885 A1 WO2008093885 A1 WO 2008093885A1
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- Prior art keywords
- film
- biaxially oriented
- electrical insulation
- fullerenes
- oriented film
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- UOGMEBQRZBEZQT-UHFFFAOYSA-L manganese(2+);diacetate Chemical compound [Mn+2].CC([O-])=O.CC([O-])=O UOGMEBQRZBEZQT-UHFFFAOYSA-L 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- OJURWUUOVGOHJZ-UHFFFAOYSA-N methyl 2-[(2-acetyloxyphenyl)methyl-[2-[(2-acetyloxyphenyl)methyl-(2-methoxy-2-oxoethyl)amino]ethyl]amino]acetate Chemical compound C=1C=CC=C(OC(C)=O)C=1CN(CC(=O)OC)CCN(CC(=O)OC)CC1=CC=CC=C1OC(C)=O OJURWUUOVGOHJZ-UHFFFAOYSA-N 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- NTNWKDHZTDQSST-UHFFFAOYSA-N naphthalene-1,2-diamine Chemical class C1=CC=CC2=C(N)C(N)=CC=C21 NTNWKDHZTDQSST-UHFFFAOYSA-N 0.000 description 1
- KYTZHLUVELPASH-UHFFFAOYSA-N naphthalene-1,2-dicarboxylic acid Chemical compound C1=CC=CC2=C(C(O)=O)C(C(=O)O)=CC=C21 KYTZHLUVELPASH-UHFFFAOYSA-N 0.000 description 1
- RXOHFPCZGPKIRD-UHFFFAOYSA-N naphthalene-2,6-dicarboxylic acid Chemical compound C1=C(C(O)=O)C=CC2=CC(C(=O)O)=CC=C21 RXOHFPCZGPKIRD-UHFFFAOYSA-N 0.000 description 1
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- 229920001515 polyalkylene glycol Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920006149 polyester-amide block copolymer Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
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- 229920002635 polyurethane Polymers 0.000 description 1
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- 230000002250 progressing effect Effects 0.000 description 1
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- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- PJANXHGTPQOBST-UHFFFAOYSA-N stilbene Chemical compound C=1C=CC=CC=1C=CC1=CC=CC=C1 PJANXHGTPQOBST-UHFFFAOYSA-N 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 150000003457 sulfones Chemical class 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 150000005201 tetramethylbenzenes Chemical class 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 150000005199 trimethylbenzenes Chemical class 0.000 description 1
- PXXNTAGJWPJAGM-UHFFFAOYSA-N vertaline Natural products C1C2C=3C=C(OC)C(OC)=CC=3OC(C=C3)=CC=C3CCC(=O)OC1CC1N2CCCC1 PXXNTAGJWPJAGM-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
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- 239000011701 zinc Substances 0.000 description 1
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Classifications
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- B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
- B29C55/10—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial
- B29C55/12—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial
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- C—CHEMISTRY; METALLURGY
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- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
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- 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
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- H—ELECTRICITY
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- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/56—Insulating bodies
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/42—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes polyesters; polyethers; polyacetals
- H01B3/421—Polyesters
- H01B3/422—Linear saturated polyesters derived from dicarboxylic acids and dihydroxy compounds
- H01B3/423—Linear aromatic polyesters
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- 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
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- 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
- H01G4/20—Dielectrics using combinations of dielectrics from more than one of groups H01G4/02 - H01G4/06
- H01G4/206—Dielectrics using combinations of dielectrics from more than one of groups H01G4/02 - H01G4/06 inorganic and synthetic material
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/03—Use of materials for the substrate
- H05K1/0313—Organic insulating material
- H05K1/0353—Organic insulating material consisting of two or more materials, e.g. two or more polymers, polymer + filler, + reinforcement
- H05K1/0373—Organic insulating material consisting of two or more materials, e.g. two or more polymers, polymer + filler, + reinforcement containing additives, e.g. fillers
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/16—Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor
- H05K1/162—Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor incorporating printed capacitors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/16—Fillers
- B29K2105/162—Nanoparticles
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
- B32B2264/10—Inorganic particles
- B32B2264/107—Ceramic
- B32B2264/108—Carbon, e.g. graphite particles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
- B32B2307/206—Insulating
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/514—Oriented
- B32B2307/518—Oriented bi-axially
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/704—Crystalline
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
- B32B2457/08—PCBs, i.e. printed circuit boards
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2605/00—Vehicles
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- 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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/03—Use of materials for the substrate
- H05K1/0393—Flexible materials
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/03—Conductive materials
- H05K2201/032—Materials
- H05K2201/0323—Carbon
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
Definitions
- the present invention relates to a biaxially oriented film suitable for electrical insulation. More specifically, it has excellent withstand voltage characteristics from room temperature to high temperature, and has excellent resistance to heat loss in the continuous processing process in which a functional layer is formed on the film while continuously winding the film.
- the present invention relates to a biaxially oriented film suitable for electrical insulating applications having processability.
- the present invention relates to a film capacitor comprising a biaxially oriented film and a film capacitor comprising the biaxially oriented film.
- films for electrical insulation made of crystalline thermoplastic resin for example, films made of polypropylene resin, polystyrene resin, polyester resin, and polyphenylene sulfide resin have been conventionally known. These films are used as films for film capacitors, films for flexible printed circuit boards, films for motor insulation, and the like.
- the film capacitor 1 is manufactured by a method in which the crystalline thermoplastic resin film described above and a metal thin film such as aluminum foil are overlapped and wound or laminated.
- the flexible printed circuit board is manufactured by a method of forming a circuit by laminating a metal thin film on at least one surface of a crystalline thermoplastic resin film.
- the insulating film is used as, for example, a wedge material or a slot material that insulates the coil of the motor from the stator.
- Patent Document 1 Japanese Patent Laid-Open No. 2 00-1 7 3 8 5 5
- Patent Document 2 Japanese Patent Laid-Open No. 2 00-1 7 3 8 5 5
- Patent Document 2 A polyethylene 1,6-naphthalate film having intrinsic viscosity and crystallinity in a specific range is disclosed.
- a large amount of a phenol-based stabilizer was added in Japanese Patent Application Laid-Open No. 2 0205-2 8960 65 (Patent Document 2).
- a thermoplastic resin film is disclosed.
- the film In the case of electrical insulation, the film is often exposed to high temperatures in a continuous processing step in which a functional layer is provided on the film while the film is continuously wound.
- a film for electrical insulation processed through a step of providing a metal layer by vacuum deposition Since the film is exposed to a high temperature, there is a problem that the film is thermally deformed and wrinkles (hereinafter sometimes referred to as heat loss) depending on the deposition rate.
- Patent Document 1 Japanese Patent Laid-Open No. 2 0 0 0-1 7 3 8 5 5
- Patent Document 2 Japanese Patent Laid-Open No. 2 0 0 5-2 8 9 0 6 5
- Patent Document 3 Japanese Patent Application Laid-Open No. 2000-062 8 2 9 7 1 Disclosure of Invention
- An object of the present invention is to have excellent withstand voltage characteristics from room temperature to a high temperature region, and in a continuous processing step in which a functional layer is formed on a film while continuously winding the film, the film is thermally deformed and wrinkled.
- An object of the present invention is to provide a biaxially oriented film suitable for electrical insulation having excellent workability in which (heat loss) does not occur.
- An object of the present invention is a film of at least one layer made of a crystalline thermoplastic resin, wherein (A) fullerenes are 10 to 200 ppm based on the weight of the crystalline thermoplastic resin. This is achieved by adding a biaxially oriented film for electrical insulation (Section 1).
- this invention includes the film capacitor
- the present invention further includes a film capacitor including such a biaxially oriented film for electrical insulation.
- the present invention also includes the following aspects.
- Item 2 The biaxially oriented film for electrical insulation according to Item 1, wherein the fullerene is at least one selected from the group consisting of C 60, C 70, and dimers and trimers thereof.
- Item 3 The biaxially oriented film for electrical insulation according to Item 1 or 2, wherein the dispersed particle size of fullerenes in the film is 100 nm or less.
- Item 4. At least one selected from the group consisting of a phenol stabilizer and an amine stabilizer is added in an amount of 1 to 500,000 ppm based on the weight of the crystalline thermoplastic resin. Biaxial for electrical insulation according to any one of 3 Oriented film.
- Item 6. At least one selected from the group consisting of xio stabilizers and phosphorus stabilizers is added in an amount of 1 to 500,000 ppm based on the weight of the crystalline thermoplastic resin, or The biaxially oriented film for electrical insulation according to 5.
- Item 7. The biaxially oriented film for electrical insulation according to any one of Items 1 to 6, comprising 0.001 to 0.1% by weight of inert particles.
- the crystalline thermoplastic resin is at least one selected from the group consisting of a polyester resin, a polypropylene resin, a polyethylene sulfide resin, and a syndiotactic polystyrene resin.
- Item 9 The biaxially oriented film for electrical insulation according to Item 8, wherein the polyester resin is polyethylene 1,6-naphthalene dicarboxylate.
- Item 10 The biaxially oriented film for electrical insulation according to Item 8 or 9, wherein the polyester resin catalyst is a titanium compound.
- Item 11 The biaxially oriented film for electrical insulation according to any one of Items 1 to 10, wherein the film is for film capacitor use or motor insulation.
- Item 1 A biaxially oriented laminated film in which a metal layer is laminated on at least one surface of the biaxially oriented film for electrical insulation according to any one of Items 1 to 11.
- Item 1 A film capacitor one film including the biaxially oriented film for electrical insulation according to any one of Items 1 to 10.
- a film capacitor constituent member comprising the biaxially oriented film for electrical insulation according to any one of Items 1 to 10 and a composite film in which a metal layer is laminated on at least one surface thereof.
- a film capacitor comprising: a biaxially oriented film for electrical insulation according to any one of Items 1 to 10; and a constituent member in which a plurality of composite films each having a metal layer laminated on at least one surface thereof are stacked.
- a motor insulating film comprising the biaxially oriented film for electrical insulation according to any one of Items 1 to 10.
- a motor insulating member comprising the biaxially oriented film for electrical insulation according to any one of Items 1 to 10.
- the film of the present invention has excellent withstand voltage characteristics from room temperature to high temperature by containing fullerenes in the crystalline thermoplastic resin film, and is suitable as an electrical insulating film.
- the film of the present invention since the film of the present invention has high film breaking strength due to inclusion of fullerenes, the film is scraped off with high tension in the production process of the electrical insulating member, for example, in the continuous processing process in which the functional layer is provided on the film. It has been found that heat loss due to metal deposition can be eliminated, and can be suitably used as an electrical insulating film due to such excellent processability. Best Mode for Carrying Out the Invention '''
- the crystalline thermoplastic resin in the present invention is not particularly limited as long as it is a crystalline thermoplastic resin that is generally used.
- a polyester resin for example, a polyester resin, a polypropylene resin, a polyphenylene sulfide resin, and a syndi used as an electrical insulating film.
- Tactic polystyrene resin The
- Examples of the polypropylene resin in the present invention include a propylene-based resin containing a propylene unit as a main component, and examples thereof include polypropylene, propylene-ethylene copolymer, and propylene- (meth) acrylic acid copolymer.
- polysulfide sulfide resin in the present invention examples include polyphenylene sulfide, polyphenylene sulfide ketone, polybiphenyl sulfide, and polyphenylene sulfide sulfone.
- the syndiotactic polystyrene resin in the present invention is a polystyrene having a stereochemical structure having a syndiotactic structure, and the tacticity measured by a nuclear magnetic resonance method ("C-NMR method") is diad (configuration 2 units) is 75% or more, preferably 85% or more, and Pentad (5 constituent units) is 30% or more, preferably 50% or more.
- C-NMR method nuclear magnetic resonance method
- Pentad (5 constituent units) is 30% or more, preferably 50% or more.
- polyester resins are preferred.
- One or a combination of two or more of these crystalline thermoplastic resins can be used.
- the polyester resin in the present invention is a polymer obtained by polycondensation of a diol and a dicarboxylic acid.
- dicarboxylic acids include terephthalic acid, isofuric acid, 2,6-naphthalenedicarboxylic acid, 4,4′-diphenyldicarboxylic acid, adipic acid and sebacic acid.
- diols include ethylene glycol, 1,4-butanediol, 1,4-sucrose hexanediol, 1,6-hexane. Sundiol is mentioned.
- poly (ethylene terephthalate) and polyethylene 2,6 mononaphthalene dicarboxylate are preferable, and polyethylene 1,6 mononaphthalene is particularly preferred from the viewpoint of withstand voltage characteristics at high temperatures.
- Dicarboxylate is preferred.
- the polyester resin in the present invention may be used alone, as a copolymer with other polyesters, or as a mixture with two or more kinds of polyesters.
- the other component in the copolymer or mixture is preferably 10 mol% or less, more preferably 5 mol% or less, based on the number of moles of the repeating structural unit.
- copolymer components include diol components such as diethylene glycol, neopentyl glycol, and polyalkylene glycol, adipic acid, sebacic acid, fuuric acid, isofuuric acid, terephthalic acid, naphthalene dicarboxylic acid, 5-sodium sulfo And dicarboxylic acid components such as isophthalic acid.
- the polyester of the present invention can be obtained by a conventionally known method, for example, a method of directly obtaining a low-polymerization degree polyester by reaction of dicarboxylic acid and diol, or by reacting a lower alkyl ester of dicarboxylic acid with a diol using a transesterification catalyst. Thereafter, it can be obtained by a polymerization reaction in the presence of a polymerization catalyst.
- the withstand voltage characteristics are further improved.
- the titanium compound is preferably a titanium compound that is soluble in a polyester resin.
- the titanium compound soluble in the polyester resin means an organic titanium compound. Specific examples include tetraethyl titanate, tetrapropyl titanate, tetrabutyl titanate, tetraphenyl titanate or a partial hydrolyzate thereof, titanyl ammonium oxalate, potassium titanyl oxalate and titanium triacetyl acetonate.
- Titanium trimellitic acid is a compound obtained by reacting trimellitic anhydride with tetrabutyl titanate.
- such a titanium compound may be added before the start of the transesterification reaction, or may be added during the transesterification reaction, after the transesterification reaction, and immediately before the polycondensation reaction.
- it may be added after completion of the esterification reaction or may be added immediately before the polycondensation reaction.
- the content of the titanium compound contained in the polyester resin is preferably in the range of 5 to 20 ppm in terms of titanium element, more preferably 7 to 18 ppm, particularly preferably 8 to 8, based on the weight of the polyester resin. 1 7 ppm. If the amount of the titanium compound is less than the lower limit, production during the production of the polyester may be delayed. On the other hand, if the amount exceeds the upper limit, the heat resistance stability of the obtained polyester is deteriorated, and the withstand voltage is increased by the precipitate of the titanium compound. The characteristics may deteriorate.
- Antimony compounds generally used as polymerization catalysts for polyester resins tend to form precipitates, and the amount of catalyst used is large. For this reason, the precipitate derived from the antimony compound causes a decrease in withstand voltage characteristics, and even if fullerenes are contained as essential components in the film, the withstand voltage characteristics may not be sufficiently improved.
- the amount of catalyst can be made very small as long as the polymerization reaction can be maintained, and the amount of precipitates that impede the withstand voltage characteristics can be reduced. Excellent withstand voltage characteristics are manifested.
- the amount of precipitates is further reduced and the withstand voltage characteristics are improved.
- catalyst compounds other than titanium compounds such as antimony compounds and germanium compounds
- the amount of catalyst compounds other than titanium compounds be small.
- the content is preferably 5 ppm or less, particularly not substantially contained, based on the weight of the polyester resin.
- the intrinsic viscosity of the polyester resin in the present invention is preferably 0.40 d 1 Z g or more at 35 ° C. in 0-black mouth phenol, and 0.40 to 0.80 d 1 More preferably, it is Zg. If the intrinsic viscosity is less than 0.4 d 1 / g, cutting may occur frequently during film formation, or the strength of the product after forming may be insufficient. On the other hand, if the intrinsic viscosity exceeds 0. S d l Zg, the productivity during polymerization may decrease.
- the crystalline thermoplastic resin of the present invention is not necessarily a single compound and may be a mixture of two or more crystalline thermoplastic resins.
- the other component may be the same kind of thermoplastic resin as the main component or another kind of thermoplastic resin.
- the other components in the mixture are preferably 30% by weight or less, more preferably 10% by weight or less, based on the total weight of the crystalline thermoplastic resin.
- the melting point of the crystalline thermoplastic resin of the present invention is preferably 2300 ° C. to 2800 ° C., more preferably 2400 ° to 275 ° C. If the melting point is less than the lower limit, the withstand voltage characteristics in the high temperature region may be insufficient. If the melting point exceeds the upper limit, film processability may be poor.
- fullerenes used in the present invention include fullerenes, fullerene derivatives, and mixtures thereof.
- Fullerene is a spherical or elliptical carbon molecule and is not limited as long as it satisfies the object of the present invention, but C60, C70, C74, C76, C78, C80, C82, C84, C86, C88, C90, C92 , C94, C96, C98, C100, and dimers and trimers of these compounds.
- fullerenes among the above-mentioned fullerenes, at least one selected from the group consisting of C 60, C 70, and dimers and trimers thereof. Is preferred. C 60 and C 70 are particularly preferred because they are industrially easy to obtain and have excellent dispersibility for the resin. Two or more of these fullerenes may be used in combination, and when a plurality of these fullerenes are used in combination, C 60 and C 70 are preferably used in combination.
- the fullerene derivative in the present invention refers to a compound in which an atomic group consisting of an inorganic element or an atomic group forming a part of an organic compound is bonded to at least one carbon constituting the fullerene.
- Such fullerene derivatives can be used in the same manner as fullerene unless the film-forming property is inhibited, and the dispersibility of fullerene may be increased.
- the fullerene used for obtaining the fullerene derivative is not limited as long as the object of the present invention is satisfied. Any of the above-mentioned fullerenes may be used.
- fullerene derivative examples include hydrogenated fullerene, oxidized fullerene, fullerene hydroxide, Examples include halogenated (F, C 1, Br, I) fullerenes.
- the fullerene derivative may contain a substituent such as a strong lpoxyl group, an alkyl group, and an amino group.
- Fullerenes can be obtained by extraction and separation from fullerene-containing soot obtained by, for example, resistance heating, laser heating, arc discharge, or combustion. At this time, it is not always necessary to completely separate, and the content of fullerene can be adjusted within a range not impairing the performance.
- fullerene derivatives can be synthesized by using conventionally known methods for fullerenes. For example, a desired fullerene derivative can be obtained by utilizing a reaction with a nucleophile (nucleophilic addition reaction), a cycloaddition reaction, a photoaddition (cyclization) reaction, an oxidation reaction, or the like.
- the addition amount of the fullerenes of the present invention is 10 to 200 ppm based on the weight of the crystalline thermoplastic resin.
- the lower limit of the addition amount of fullerenes is preferably 100 ppm or more, more preferably 500 ppm or more, and particularly preferably 100 ppm or more.
- the upper limit of the amount of fullerenes added is preferably 15 500 ppm or less, more preferably 10 00 00 ppm or less. If the amount of fullerenes is less than the lower limit, The voltage characteristics are not improved sufficiently. On the other hand, if the addition amount of fullerenes exceeds the upper limit, further improvement of the withstand voltage characteristics cannot be expected, and dispersion failure may occur during film formation, resulting in film breakage or rough surface.
- the fullerenes of the present invention preferably have a dispersed particle size of 100 nm or less in the biaxially oriented film.
- the dispersed particle size refers to the particle size of the aggregated secondary particles when fullerenes are aggregated and dispersed.
- the dispersed particle size was measured using an optical microscope (Nikon's OP TPHOT-2) with a thickness cross section parallel to the obtained MD direction (sometimes referred to as the longitudinal direction or film continuous film forming direction). Observe at a magnification of 0, measure the length in the MD direction of 100 fullerene dispersed phases, and obtain the number average length.
- the dispersed particle size of fullerenes exceeds 100 nm, the dispersibility of fullerenes is not sufficient, and the withstand voltage characteristics may vary.
- the film of the present invention may further contain at least one selected from the group consisting of (B) a phenol stabilizer and an amine stabilizer.
- phenol-based stabilizers examples include hindered phenols, among which high molecular weight type hydroxyphenyl propionate and hydroxybenzylbenzene are preferable.
- Penyu Erythrityrutate Lakis [3- (3,5-di-tert-butyl-4-hydroxyphene J-re) propionate]
- Octadecyl-3-te 3,5-di -t-Ptyl-4-hydroxyphenyl) propionate triethylene glycol-bis [3- (3-t_butyl-5-methyl-4-hydroxyphenyl) propionate, 1, 3, 5-trimethyl-2
- Examples include 4, 6-tris (3,5-di-t-butyl-4-hydroxybenzyl) benzen, and erythrityl-tetrakis [3- (3,5-di-t-butyl-4- Hydroxyphenyl) propionate], decyl-3- (3 5-Di-t-butyl-4-hydroxyphenyl) prop
- These compounds may be used alone or in combination of two or more, but when used in combination with a phenol stabilizer and an amine stabilizer, they may react and lose activity. Therefore, when using a plurality of stabilizers, it is preferable to use the same kind of stabilizers in combination.
- the amount of component (B) added is preferably in the range of 1 to 500,000 p pm based on the weight of the crystalline thermoplastic resin, more preferably 1 to 100 000 Q p pm, Preferably, it is 1 00 to 5 0 00 p pm, and particularly preferably 5 0 0 to 1 0 0 0 0 p pm.
- component (B) If the added amount of these components (B) is less than the lower limit, the synergistic effect of withstand voltage characteristics may not be sufficiently exhibited. On the other hand, if the amount of component (B) exceeds the upper limit, it reacts with the polyester resin to inhibit the crystallization characteristics, and the breaking strength is reduced, so that high tension cannot be applied during continuous film cutting. Heat loss may occur in the film during the deposition process.
- component (B) when the component (B) is further added to the film, at least selected from the group consisting of (A) fullerenes represented by the following formula (1), (B) phenol-based stabilizer, and amine-based stabilizer: It is preferable that the blending ratio with one type is from 0.0 0 1 to 1.0.
- the mixing ratio of the component (A) and the component (B) represented by the formula (1) is 0.4 or more. More preferably, it is in the range of 0.8 or less.
- the blending ratio of component (A) to component (B) is less than the lower limit, the synergistic effect of component (B) may not be manifested, and film-forming properties may be reduced by blending component (B). May occur.
- the blending ratio of the component (A) and the component (B) exceeds the upper limit, the synergistic effect due to the component (B) may not appear.
- the film of the present invention contains (A) fullerenes, (B) at least one selected from the group consisting of phenol-based stabilizers and amine-based stabilizers, when both are included as essential components in the film. A small amount of at least one selected from the group consisting of xio stabilizers and phosphorus stabilizers can be added and contained in the film. These stabilizers (A) fullerenes,
- thio stabilizers examples include thioether compounds, and specific examples include tetraester type high molecular weight thioether compounds.
- phosphorus stabilizers examples include phosphonic acid, phosphate compounds, and phosphate compounds. Among these, various phosphate compounds can be used.
- the content of the component (C) is 1 to 5 based on the weight of the crystalline thermoplastic resin.
- io stabilizers and phosphorus stabilizers can further improve the withstand voltage characteristics when used in combination with (A) fullerenes, (B) phenol stabilizers or amine stabilizers. Even if it is added in a large amount, the synergistic effect associated with the addition amount does not appear. Therefore, it is preferable to add in the smallest possible range within these ranges.
- inert particles may be added in order to impart winding properties during film formation.
- the inert particles include inorganic particles such as calcium carbonate, silica force, talc, and clay, organic particles made of any one of thermoplastic and thermosetting resins such as silicone and acrylic, barium sulfate, and titanium oxide. At least one of these pigments can be used.
- Such inert particles can be used within a range not impairing the effects of the invention.
- inert particles having an average particle diameter of 0.001 to 5 ⁇ m can be used.
- the average particle size of the inert particles is more preferably from 0.01 to 3 zm.
- the lower limit of the content of the inert particles is exemplified by 0.001% by weight based on the weight of the crystalline thermoplastic resin film, more preferably 0.01% by weight, and still more preferably 0.05. It is% by weight. Further, the upper limit of the content of the inert particles is exemplified by 10% by weight based on the weight of the crystalline thermoplastic resin film, more preferably 5% by weight, still more preferably 1% by weight, particularly preferably 0. 1% by weight.
- the content of the inert particles is determined by dissolving the crystalline thermoplastic resin, selecting a solvent that does not dissolve the inert particles, dissolving the film, centrifuging the particles, and then adding the particles to the crystalline thermoplastic resin film weight.
- the content is expressed as a percentage (% by weight).
- the withstand voltage characteristic of the biaxially oriented film of the present invention is evaluated by a dielectric breakdown voltage.
- the biaxially oriented film of the present invention has a dielectric breakdown voltage difference between 25 ° C and 1550 ° C (may be described as "BD Vt25-tl50") of 1 3 0 V / ⁇ m or less Is more preferably 100 V / am or less, and particularly preferably 85 V / m or less.
- the dielectric breakdown voltage difference exceeds the upper limit, for example, the electrical characteristics when used in a capacitor, especially at high temperatures, are not sufficient, and it should be used suitably for applications where the usage environment is in the high temperature range. May not be possible.
- Such a dielectric breakdown voltage difference is obtained by using at least one selected from the group consisting of polyester resin, polypropylene resin, polyphenylene sulfide resin and syndiotactic polystyrene resin as a crystalline thermoplastic resin, and in a biaxially oriented film. This is achieved by including a predetermined amount of fullerenes.
- the crystalline thermoplastic resins it is possible to reduce such a dielectric breakdown voltage difference by using polyethylene 1,2 and 1-naphthalene dicarboxylate.
- the dielectric breakdown voltage of the biaxially oriented film at 25 ° C is preferably 3 70 V / m or more, more preferably 3 80 V / m or more, and even more preferably 3 90 V / m or more. Particularly preferably, it is 400 V / m or more.
- the dielectric breakdown voltage of the biaxially oriented film at 1550 ° C is preferably 2 10 VZ / m or more, more preferably 2550 VZm or more, more preferably 2700 VZm or more, particularly Preferably it is 2 80 VZm or more, most preferably 290 V / m or more.
- insulation breakdown voltages are at least one selected from the group consisting of polyester resin, polypropylene resin, polyphenylene sulfide resin, and syndiotactic polystyrene resin as a crystalline thermoplastic resin. And by including a predetermined amount of fullerenes in the biaxially oriented film.
- the insulation breakdown voltage at 25 ° C. and 150 ° C. can be increased.
- the dielectric breakdown voltage at 25 ° C and 1550 ° C can also be increased by using a phenolic stabilizer or an amine stabilizer in combination with fullerenes.
- the dielectric breakdown voltage at 25 ° C conforms to the plate electrode method described in JIS standard 'C 2 1 5 1, and the device name “ITS — 6 0 0 3 ”(Manufactured by Tokyo Seiden Co., Ltd.) and measured under a DC current, 0.1 kV / s boosting condition.
- Insulation breakdown voltage at 150 ° C As described in detail in the measuring method, the test atmosphere silicon oil is compliant with JIS standard K 6 9 1 1 and using a withstand voltage tester “T 0 S 5 1 0 1” (manufactured by Kikusui Electronics). It is a value measured at a temperature of 150 ° C. under a DC current, 0.1 lk VZ s boosting condition.
- the breakdown voltage difference (BDV 5 – tl 50) can be obtained by subtracting the breakdown voltage at 1550 ° C from the breakdown voltage at 25 ° C.
- the dielectric breakdown voltage value at two points of 25 ° C. and 150 ° C. is evaluated as an index for evaluating the withstand voltage characteristics from room temperature to a high temperature region.
- the breakdown voltage value decreases continuously as the temperature increases, and the breakdown voltage rapidly decreases at a certain temperature. Therefore, the technical significance of the value of the dielectric breakdown voltage difference at 25 ° C and 1550 ° C in the present invention is that the decrease in the dielectric breakdown voltage value with increasing temperature is higher than that of the resin alone film. This means that the dielectric breakdown voltage does not drop suddenly between 25 and 1550 ° C. .
- the biaxially oriented film of the present invention has the effect of improving the withstand voltage characteristics of the film by containing fullerenes, and also has the characteristics of enhancing the crystallization characteristics of the crystalline thermoplastic resin. Specifically, the crystallization characteristics of the biaxially oriented film of the present invention shift to the higher temperature side than the temperature at which the melting point is normally observed. The melting point is determined from the crystal peak measured for the film using a differential thermal analyzer (DSC). On the other hand, when the same measurement was performed on the crystalline thermoplastic resin constituting the film as a reference, and the film of the present invention was compared with the reference, the melting point of the film of the present invention was higher than the melting point of the reference film.
- DSC differential thermal analyzer
- the crystalline melting point is usually 2 6 A crystal peak can be observed around 5 ° C.
- the biaxially oriented film of the present invention contains fullerenes, so that the melting point shifts to the high temperature side and crystallizes in the vicinity of 2700 ° C. A peak is observed.
- the film breaking strength is improved, and the film further contains (B) a predetermined amount of at least one selected from the group consisting of a phenol-based stabilizer and an amine-based stabilizer.
- a synergistic effect of withstand voltage characteristics is exhibited without causing crystallization inhibition by the component (B).
- the biaxially oriented film of the present invention has the effect of improving the withstand voltage characteristics of the film by containing fullerenes, and also has the characteristics of improving the film breaking strength.
- the improvement in the film breaking strength is considered to be based on the effect of enhancing the crystallization characteristics of the crystalline thermoplastic resin by the fullerenes.
- the film breaking strength in the present invention is represented by the film breaking strength in the continuous film forming direction of the film, and may be referred to as the MD direction film breaking strength and the longitudinal direction film breaking strength.
- the film breaking strength is preferably at least 29 MPa, more preferably at least 300 MPa, even more preferably at least 3MPa, particularly preferably at least 3100MPa, most preferably Is greater than 3 15 MPa.
- the film breaking strength is within such a range, the film can be scraped off with high tension, and the generation of heat loss due to metal deposition (wrinkles caused by heat during metal deposition) can be eliminated.
- the biaxially oriented film of the present invention includes both a single layer and a laminate of two or more layers. In the case of two or more layers, it is necessary to include at least one layer containing a crystalline thermoplastic resin and (A) fullerenes. In the case of three or more layers, it is necessary to have a plurality of such layers. Is preferred.
- the total thickness of the biaxially oriented film of the present invention is preferably 0.1 to 20 2 m, more preferably 0.5 to 15 111, and particularly preferably 1.0 to 10 / zm. If the film thickness is less than the lower limit, it is difficult to form a film, and the withstand voltage characteristic is May decrease. On the other hand, if the film thickness exceeds the upper limit, it may be difficult to reduce the size of the film capacitor and the motor insulation member.
- the biaxially oriented film of the present invention may have a coating layer on at least one surface of the outermost layer.
- a coating layer can be obtained by coating a coating agent comprising a binder resin and a solvent on a biaxially oriented film.
- the binder resin various resins such as thermoplastic resin or thermosetting resin can be used.
- polyester, polyimide, polyamide, polyester amide, polyolefin, polyvinyl chloride, poly (meth) acrylate examples include polyurethane and polystyrene, and copolymers and mixtures thereof.
- polyester copolymers are particularly preferred.
- the solvent include organic solvents and mixtures such as toluene, ethyl acetate, and methyl ethyl ketone, and may be water.
- the coating layer of the present invention may further contain a crosslinking agent, a surfactant, and inert particles as components that form the coating.
- a crosslinking agent such as polyethylene oxides.
- the method of laminating the coating layer of the present invention is a method in which a coating is applied to at least one side of a biaxially stretched crystalline thermoplastic resin film and then dried, and after the coating is applied to the stretchable film Any of the methods of drying, stretching, and heat treatment as necessary may be used.
- the stretchable film is an unstretched film, a uniaxially stretched film, or a biaxially stretched film, and among these, a longitudinally stretched film that is uniaxially stretched in the film extrusion direction (longitudinal direction) is particularly preferably exemplified. .
- the coating agent when applied to the crystalline thermoplastic resin film, it is preferably applied in a clean atmosphere, that is, in the film forming process, and the adhesion of the coating film is improved.
- a normal coating process that is, a heat-set film after biaxial stretching in a process separated from the film manufacturing process, dust, dust, etc. are likely to be involved.
- any known coating method can be used. For example, a roll coating method, a gravure coating method, a roll brush method, a spray coating method, an air knife coating method.
- the impregnation method and the curtain coating method can be used alone or in combination.
- the biaxially oriented film of the present invention can be obtained by producing a crystalline thermoplastic resin composition containing a crystalline thermoplastic resin and fullerenes as essential components and biaxially stretching the composition.
- a method for producing such a crystalline thermoplastic resin composition the following four methods may be mentioned, and any method may be used.
- fullerenes are dissolved in a solvent in an amount of 0.1 wt% to 15 wt% to prepare a fullerene solution, and the resin raw material or its oligomer is added to the fullerene solution. In which a polymerization reaction is carried out.
- the concentration of the fullerene solution is preferably 0.1 wt% to 15 wt%. If the concentration is less than the lower limit, a large amount of solvent is used, which is not efficient. On the other hand, when the concentration exceeds the upper limit, fullerenes may aggregate. A more preferred concentration is in the range of 0.3 wt% to 7 wt%, more preferably 0.5 wt% to 3 wt%.
- the type of solvent is that the solubility of fullerenes in the solvent is 5. O mg Those having a value of at least m 1 are preferred.
- the solubility of C 60 is described in “Fullerene Chemistry and Physics” (Nagoya University Press). Decalin, tetrachloroethane, xylenes, trimethylbenzenes, tetramethylbenzenes, tetralin, dibromobenzenes, Anisol, black benzene, dichlorobenzene, trichloro benzene, naphthalene, pyridine, 2-methylthiophene, carbon disulfide, etc. have a solubility of 5. O mg / m 1.
- naphthalenes are preferably exemplified from the viewpoint of affinity with the resin.
- naphthenols include: naphthalene; 1 monomethylnaphthalene, 2-methylnaphthalene, alkylnaphthalene such as dimethylnaphthalene, etc.
- naphthalene 1 monophenylnaphthalene, 1 mono-naphthalene, 1-bromo-2- Halogenated naphthalenes such as methylnaphthalene; diaminonaphthalenes; esters such as 2,6 monodimethylnaphthalenedicarboxylic acid esters.
- the boiling point is preferably less than 320 ° C, more preferably 300 ° C. Is less than.
- the most preferred solvents are naphthenol, 1-methylnaphthalene, 2-methylnaphthalene and di'methylnaphthalene.
- the resin composition production method of 2) is a method in which a predetermined amount of fullerenes is added to a molten resin in the latter stage of the polymerization reaction of a crystalline thermoplastic resin polymerized by a known method. It is a method of adding directly.
- the method for producing a resin composition is as follows: fullerenes are dissolved in a solvent in an amount of 0.1 wt% to 15 wt% to prepare a fullerene solution, and a crystalline thermoplastic resin is added to the fullerene solution.
- the solvent is removed from the polymer dope solution.
- the concentration of the polymer dope solution is preferably 1 to 80%. If the concentration is less than the lower limit, a large amount of solvent is used, which is not efficient.
- fullerenes may agglomerate when the concentration is higher than the upper limit.
- the concentration of the polymer dope solution is preferably in the range of 20% to 60%, more preferably 30% to 50%.
- the method 4) for producing a resin composition is a method in which a crystalline thermoplastic resin and fullerenes are melt-kneaded using a biaxial kneader.
- a predetermined amount of fullerenes is added to a solid resin, and these are mixed and then melt-kneaded with a twin-screw kneader. After the resin is melted, a predetermined amount of fullerenes is added. And a method of melt kneading with a biaxial kneader.
- the fullerenes may be added directly or after a mass polymer is prepared in advance.
- the concentration of fullerenes in the mass polymer is preferably 0.1 to 10% by weight. If the concentration is less than the lower limit, the amount of the master polymer may increase and it may not be efficient. On the other hand, it may be difficult to produce a master polymer in a range where the concentration exceeds the upper limit.
- the fullerene-containing polymer obtained by the methods 1) to 4) as a master polymer, the amount of fullerenes added by a method of melt-kneading with a polymer not containing fullerenes with a biaxial kneader. You can adjust
- the crystalline thermoplastic resin composition further comprises (B) at least one selected from the group consisting of a phenol-based stabilizer and an amine-based stabilizer, and (C) a group consisting of a X-based stabilizer and a phosphorus-based stabilizer.
- B) component and (C) component are included, (A) How to add fullerenes Among the methods, it can be added according to the methods 2) and 4).
- the method for obtaining the biaxially oriented film of the present invention is specifically described below, but is not particularly limited to the following examples.
- the resin composition obtained by any one of the methods 1) to 4) described above is dried as desired, supplied to an extruder, and formed into a sheet from a T-die.
- the sheet-like molded product extruded from the T-die is cooled and solidified with a cooling drum having a surface temperature of 10 to 60 to form an unstretched film.
- This unstretched film is heated by, for example, mouth heating or infrared heating, and then stretched in the longitudinal direction to obtain a longitudinally stretched film.
- Such longitudinal stretching is preferably performed by utilizing the difference in peripheral speed between two or more rolls.
- the longitudinal stretching temperature is preferably higher than the glass transition point (T g) of the resin, and more preferably 20 to 40 ° C. higher than the glass transition point (T g).
- the longitudinal draw ratio may be adjusted as appropriate according to the requirements of the application to be used, but is preferably 2.5 times or more and 5.0 times or less, more preferably 3.0 times or more and 4.5 times or less. .
- the longitudinal draw ratio is less than the lower limit, the thickness unevenness of the film is deteriorated and a good film may not be obtained.
- the longitudinal draw ratio exceeds the upper limit, breakage is likely to occur during film formation.
- the obtained longitudinally stretched # film is subsequently stretched in the transverse direction, and then subjected to heat-fixing and heat-relaxation treatments as necessary to make a biaxially oriented film. However, such treatment is performed while the film is running. Do. '
- the transverse stretching treatment starts from a temperature 20 ° C higher than the glass transition point (Tg) of the resin and is performed while raising the temperature to a temperature (120 to 30 ° C) lower than the melting point (Tm) of the resin.
- the transverse stretching start temperature is preferably (T g +40) ° or less.
- the maximum transverse stretching temperature is preferably a temperature that is (100 to 40) ° C. lower than the melting point (Tm). If the transverse stretching start temperature is too low, the film tends to tear. If the maximum temperature for transverse stretching is lower than (Tm—120) ° C, the thermal shrinkage rate of the obtained film increases, and the physical properties in the width direction become uniform. Uniformity tends to decrease. On the other hand, if the maximum transverse stretching temperature is higher (Tm-30), the film becomes too soft and the film is easily broken during film formation.
- the temperature of the transverse stretching process may be continuous or stepwise (sequential), but is usually raised stepwise.
- the horizontal stretching zone of stainless steel is divided into a plurality of zones along the film running direction, and the temperature is raised by flowing a heating medium of a predetermined temperature for each zone.
- the transverse draw ratio may be appropriately adjusted according to the requirements of the intended use, but is preferably 2.5 times or more and 5.0 times or less, more preferably 3.0 times or more and 4.5 times or less.
- the transverse draw ratio is less than the lower limit, the thickness unevenness of the film deteriorates and a good film may not be obtained.
- the transverse stretching ratio exceeds the upper limit, breakage tends to occur during film formation.
- the biaxially stretched film is then subjected to heat setting treatment as necessary.
- heat setting By performing heat setting, the dimensional stability of the obtained film under high temperature conditions can be enhanced.
- the thermal shrinkage at 20 ° C. is preferably 1 to 3%, more preferably 1 2 ⁇ 2%, particularly preferably 1-1%.
- the heat shrinkage rate at 200 ° C does not satisfy the above range, when a laminated film is produced by vapor-depositing a metal film on the film, and either a base film or a metal film is obtained. Wrinkles may occur.
- the biaxially oriented film of the present invention is further subjected to a heat treatment at 150 to 220 for 1 to 60 seconds in order to suppress thermal shrinkage, and then at a temperature atmosphere of 50 to 80 ° C. Annealing treatment may be performed by cooling slowly.
- the biaxially oriented film of the present invention can be prepared by any of the methods 1) to 4) in order to increase the dispersibility of fullerenes and to make the dispersed particle diameter not more than 100 nm.
- a fat composition may be produced and then melt kneaded.
- the kneading method is not particularly limited, but can be carried out using a 1-axis ruder, a 2-axis ruder and a kneader.
- the melt-kneading treatment temperature is 5 to 100 ° C. higher than the temperature at which the resin component melts, and is particularly preferably 10 to 60 ° C. higher than the resin melting point. If the melt-kneading temperature is too high, resin decomposition and abnormal reactions may occur.
- the kneading treatment time is at least 30 seconds or more and 15 minutes or less, preferably 1 to 10 minutes.
- the biaxially oriented film of the present invention may be a biaxially oriented laminated film obtained by laminating other layers as functional layers for the purpose of imparting other functions to at least one surface.
- At least one surface of the biaxially oriented film may further include a layer containing an oxygen atom-containing compound.
- the ratio of oxygen atoms to carbon atoms is preferably 10% or more, more preferably 15% or more, when measured using X-ray photoelectron spectroscopy.
- the oxygen atom-containing compound cellulose, S I_ ⁇ 2 are exemplified.
- the layers may be laminated by any one of vacuum deposition, ion plating, and sputtering.
- the functional layer may be a metal layer.
- the material of the metal layer is not particularly limited, and examples thereof include aluminum, zinc, nickel, chromium, tin, copper, and alloys thereof.
- the metal layer can be laminated by any of the following methods: vacuum deposition, sputtering, and application via an adhesive.
- the biaxially oriented film of the present invention has a high film breaking strength, so it is possible to wind up the film with high tension, and metal deposition It is possible to eliminate the heat loss caused by.
- the biaxially oriented film of the present invention has excellent voltage resistance characteristics from room temperature to high temperature, it can be suitably used as an electrical insulation film, and particularly for electrical insulation applications where the usage environment extends to high temperatures. It can be preferably used as an insulating film. Specifically, since the temperature at the time of processing or use tends to be high and electrical insulation is required, it is necessary to use insulating materials such as film capacitors, wedge materials, slot materials, etc., flexible electronics devices. It can be used as an electrically insulating base film. More specifically, as a base film of a flexible electronic device, a flexible printed circuit board, a flat cable, and a solar cell are exemplified. In addition, it can also be used as an electrical insulation member for fuel cells.
- a film capacitor includes a component member formed by winding or stacking a plurality of composite films each having a metal layer laminated on one side of a biaxially oriented film of the present invention. It is out.
- the film capacitor one constituent member in the present invention refers to a film capacitor constituent member including the biaxially oriented film of the present invention and a composite film in which a metal layer is laminated on at least one surface thereof.
- the flexible printed circuit board is formed by laminating a metal layer made of copper foil or a conductive pace ridge on at least one side of the biaxially oriented film of the present invention. It can be obtained by forming a fine circuit pattern on the metal layer.
- a motor insulating member such as a wedge material or a spout material can be obtained by using the biaxially oriented film of the present invention as a motor insulating film and performing deformation processing using a punch with R.
- Dielectric breakdown voltage difference (BDV 5—U50) (1) Using the dielectric breakdown voltage value at each temperature obtained by the method of (2), subtracting the dielectric breakdown voltage at 1550 ° C from the dielectric breakdown voltage at 25 ° C, the dielectric breakdown voltage The difference was determined.
- the obtained biaxially oriented film 1 Omg was sealed in an aluminum pan for measurement, and the DSC 2 9 2 0 (TA instr ume nts) was used to measure the temperature at a heating rate of 20 ° CZmin. The melting peak temperature was determined by measurement.
- the film thickness was measured using an electronic micrometer (trade name “K 1 3 1 2 A type” manufactured by Anritsu Co., Ltd.) at a needle pressure of 30 g.
- the film breaking strength was measured using a tensile tester (trade name “Tensilon” manufactured by Toyo Paul Douin Co., Ltd.). Using the obtained biaxially oriented film, in the machine direction (MD), a sample of 10 Omm in the longitudinal direction and 1 Omm in the width direction was sampled and fixed with a chuck set at an interval of 50 mm. Pulling was performed at a speed of 0 Omm / min, and the load was measured with a load cell attached to the testing machine. The load at the time of breaking the unloading curve was read and divided by the cross-sectional area of the sample before tension to calculate the breaking strength (MPa).
- MPa breaking strength
- vapor deposition was performed for 10 minutes using a winding tension higher than A at a vapor deposition rate of 3500 mZmin or more, and heat loss was generated.
- AA was evaluated by AA.
- deposition was performed for 10 minutes at the same deposition rate and winding tension as A, and B was evaluated when heat loss occurred occasionally.
- NDC N 1, 2, 6 mononaphthalenedicarboxylic acid dimethyl ester
- EG ethylene dalycol
- titanium compound Titanium trimellitate was added to a SUS container so that the amount of titanium element was 15 mmo 1%, and the mixture was transesterified while raising the temperature from 140 ° C to 240 ° C.
- the reaction mixture was transferred to a polymerization reactor, heated to 2 95, and subjected to a polycondensation reaction under a high vacuum of 30 Pa or less, and an intrinsic viscosity of 0.6 dl / g polyethylene-2,6 A naphthorange carboxylate was obtained.
- P 2; 2-methylnaphthalene 10 parts by weight and fullerenes 0.3 parts by weight were placed in a flask and stirred well. The temperature was about 200 ° C. Next, the P 1 polymer was dried at 70 for 6 hours, and 63 parts by weight were added in small portions. After stirring for about 1 to 2 hours, when the temperature was gradually raised and finally raised to 2900 ° C., pressure reduction was started and 2-methylnaphthalene was removed to obtain a resin composition. The amount of fullerenes added to the polymer weight is It was 5 0 0 0 ppm.
- a fullerene-containing PEN polymer was prepared according to the method of P 2 except that the addition amount of fullerenes relative to the polymer weight was changed from 5 00 ppm to l 2 O 2 O O O p pm.
- a fullerene-containing PEN polymer was prepared according to the method of P 2 except that the addition amount of fullerenes relative to the weight of the polymer was changed from 5 00 ppm to 3 00 000 p pm. .
- the amount of the phenol stabilizer added to the polymer weight is 5 0 0 0
- a phenol-based stabilizer-containing PEN polymer was prepared according to the method of P3, except that ppm was changed to 1000 ppm.
- the P 2 polymer was dried at 180 ° C. for 6 hours, then supplied to an extruder heated to 300 ° C., and formed into a sheet form from a die at 29 ° C. Furthermore, after this sheet was cooled and solidified with a cooling drum having a surface temperature of 60 ° C, the unstretched film was guided to a roll group heated to 140 ° C and stretched by 3.6 times in the longitudinal direction (longitudinal direction). And cooled in a roll group at 60 ° C.
- a biaxially oriented polyester film having a thickness of 3 m was obtained in the same manner as in Example 1 except that the polymers listed in Table 1 were used.
- the film of the present invention has excellent withstand voltage characteristics from room temperature to a high temperature region by containing fullerenes in the crystalline thermoplastic resin film, and continuously provides a functional layer on the film while winding the film continuously. In the processing step, the film does not lose heat and has excellent processability, so that it can be suitably used as an electrical insulating film.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Medicinal Chemistry (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Inorganic Chemistry (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Materials Engineering (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Laminated Bodies (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
- Insulating Bodies (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020097017867A KR101457723B1 (ko) | 2007-02-01 | 2008-01-30 | 전기 절연용 2 축 배향 필름, 그것으로 이루어지는 필름 콘덴서 구성 부재 및 그것으로 이루어지는 필름 콘덴서 |
US12/525,252 US20100062239A1 (en) | 2007-02-01 | 2008-01-30 | Biaxially oriented film for electrical insulation, film capacitor constituting member formed of the same, and film capacitor including same |
EP08710874.2A EP2128189B1 (en) | 2007-02-01 | 2008-01-30 | Biaxially oriented film for electrical insulation, film capacitor constituting member composed of the same, and film capacitor comprising the same |
CN2008800039678A CN101600757B (zh) | 2007-02-01 | 2008-01-30 | 电绝缘用双轴取向膜、包含其的膜电容器构成构件以及包含其的膜电容器 |
JP2008556218A JP5410763B2 (ja) | 2007-02-01 | 2008-01-30 | 電気絶縁用二軸配向フィルム、それからなるフィルムコンデンサー構成部材およびそれからなるフィルムコンデンサー |
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JP2007022830 | 2007-02-01 | ||
JP2007-022830 | 2007-02-01 |
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WO2008093885A1 true WO2008093885A1 (ja) | 2008-08-07 |
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PCT/JP2008/051978 WO2008093885A1 (ja) | 2007-02-01 | 2008-01-30 | 電気絶縁用二軸配向フィルム、それからなるフィルムコンデンサー構成部材およびそれからなるフィルムコンデンサー |
Country Status (6)
Country | Link |
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US (1) | US20100062239A1 (ja) |
EP (1) | EP2128189B1 (ja) |
JP (1) | JP5410763B2 (ja) |
KR (1) | KR101457723B1 (ja) |
CN (1) | CN101600757B (ja) |
WO (1) | WO2008093885A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011093984A (ja) * | 2009-10-28 | 2011-05-12 | Teijin Dupont Films Japan Ltd | 電気絶縁用二軸配向フィルム |
EP2495275A4 (en) * | 2009-10-28 | 2016-06-29 | Teijin Dupont Films Japan Ltd | BI-ORIENTED FILM FOR ELECTRICAL INSULATION, AND CAPACITOR IN THE FORM OF FILM MANUFACTURED THEREFROM |
JP2016117818A (ja) * | 2014-12-19 | 2016-06-30 | 昭和電工株式会社 | フラーレン組成物、樹脂添加剤および樹脂組成物 |
Families Citing this family (7)
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US20120008251A1 (en) * | 2010-07-12 | 2012-01-12 | Wei-Ching Yu | Film capacitors comprising melt-stretched films as dielectrics |
US20150257296A1 (en) * | 2014-03-07 | 2015-09-10 | Taiflex Scientific Co., Ltd. | Cover layer with high thermal resistance and high reflectivity for a printed circuit board |
CN115692018A (zh) * | 2017-01-03 | 2023-02-03 | 日立能源瑞士股份公司 | 绝缘系统和电容器 |
KR20200027368A (ko) * | 2018-09-04 | 2020-03-12 | 에스케이씨 주식회사 | 절연부를 포함하는 케이블 및 케이블 절연부의 제조방법 |
CN114902360B (zh) * | 2019-12-27 | 2024-03-19 | 株式会社村田制作所 | 薄膜电容器以及薄膜电容器用薄膜 |
CN111341558A (zh) * | 2020-03-20 | 2020-06-26 | 清华大学 | 一种电介质薄膜及其制备方法和应用 |
KR20240149394A (ko) * | 2022-01-06 | 2024-10-14 | 차이나 페트로리움 앤드 케미컬 코포레이션 | 이축 배향 폴리프로필렌 유전체 필름, 개질 폴리프로필렌 재료 및 이의 용도 |
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- 2008-01-30 CN CN2008800039678A patent/CN101600757B/zh not_active Expired - Fee Related
- 2008-01-30 EP EP08710874.2A patent/EP2128189B1/en not_active Not-in-force
- 2008-01-30 KR KR1020097017867A patent/KR101457723B1/ko active IP Right Grant
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011093984A (ja) * | 2009-10-28 | 2011-05-12 | Teijin Dupont Films Japan Ltd | 電気絶縁用二軸配向フィルム |
EP2495275A4 (en) * | 2009-10-28 | 2016-06-29 | Teijin Dupont Films Japan Ltd | BI-ORIENTED FILM FOR ELECTRICAL INSULATION, AND CAPACITOR IN THE FORM OF FILM MANUFACTURED THEREFROM |
US9754721B2 (en) | 2009-10-28 | 2017-09-05 | Teijin Dupont Films Japan Limited | Biaxially oriented film for electrical insulation and film capacitor made using biaxially oriented film for electrical insulation |
KR101781662B1 (ko) * | 2009-10-28 | 2017-09-25 | 데이진 필름 솔루션스 가부시키가이샤 | 전기 절연용 2 축 배향 필름 및 전기 절연용 2 축 배향 필름을 사용하여 이루어지는 필름 콘덴서 |
JP2016117818A (ja) * | 2014-12-19 | 2016-06-30 | 昭和電工株式会社 | フラーレン組成物、樹脂添加剤および樹脂組成物 |
Also Published As
Publication number | Publication date |
---|---|
EP2128189A1 (en) | 2009-12-02 |
EP2128189A4 (en) | 2013-04-24 |
EP2128189B1 (en) | 2014-06-04 |
KR101457723B1 (ko) | 2014-11-03 |
CN101600757A (zh) | 2009-12-09 |
US20100062239A1 (en) | 2010-03-11 |
JP5410763B2 (ja) | 2014-02-05 |
KR20090113315A (ko) | 2009-10-29 |
CN101600757B (zh) | 2012-06-06 |
JPWO2008093885A1 (ja) | 2010-05-20 |
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