WO2010143542A1 - 二軸延伸ポリアリーレンスルフィド樹脂フィルムとその製造方法 - Google Patents
二軸延伸ポリアリーレンスルフィド樹脂フィルムとその製造方法 Download PDFInfo
- Publication number
- WO2010143542A1 WO2010143542A1 PCT/JP2010/059068 JP2010059068W WO2010143542A1 WO 2010143542 A1 WO2010143542 A1 WO 2010143542A1 JP 2010059068 W JP2010059068 W JP 2010059068W WO 2010143542 A1 WO2010143542 A1 WO 2010143542A1
- Authority
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- WIPO (PCT)
- Prior art keywords
- range
- film
- biaxially stretched
- resin
- polyarylene sulfide
- Prior art date
Links
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 32
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- RELMFMZEBKVZJC-UHFFFAOYSA-N 1,2,3-trichlorobenzene Chemical compound ClC1=CC=CC(Cl)=C1Cl RELMFMZEBKVZJC-UHFFFAOYSA-N 0.000 description 2
- XKEFYDZQGKAQCN-UHFFFAOYSA-N 1,3,5-trichlorobenzene Chemical compound ClC1=CC(Cl)=CC(Cl)=C1 XKEFYDZQGKAQCN-UHFFFAOYSA-N 0.000 description 2
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- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 2
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- 125000001989 1,3-phenylene group Chemical group [H]C1=C([H])C([*:1])=C([H])C([*:2])=C1[H] 0.000 description 1
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- YCFUHBHONRJFHI-UHFFFAOYSA-N 2,6-dichloronaphthalene Chemical compound C1=C(Cl)C=CC2=CC(Cl)=CC=C21 YCFUHBHONRJFHI-UHFFFAOYSA-N 0.000 description 1
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- BTOVVHWKPVSLBI-UHFFFAOYSA-N 2-methylprop-1-enylbenzene Chemical compound CC(C)=CC1=CC=CC=C1 BTOVVHWKPVSLBI-UHFFFAOYSA-N 0.000 description 1
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- CXKCZFDUOYMOOP-UHFFFAOYSA-N 3,5-dichlorobenzoic acid Chemical compound OC(=O)C1=CC(Cl)=CC(Cl)=C1 CXKCZFDUOYMOOP-UHFFFAOYSA-N 0.000 description 1
- IWTYTFSSTWXZFU-UHFFFAOYSA-N 3-chloroprop-1-enylbenzene Chemical compound ClCC=CC1=CC=CC=C1 IWTYTFSSTWXZFU-UHFFFAOYSA-N 0.000 description 1
- YTBRNEUEFCNVHC-UHFFFAOYSA-N 4,4'-dichlorobiphenyl Chemical group C1=CC(Cl)=CC=C1C1=CC=C(Cl)C=C1 YTBRNEUEFCNVHC-UHFFFAOYSA-N 0.000 description 1
- GPAPPPVRLPGFEQ-UHFFFAOYSA-N 4,4'-dichlorodiphenyl sulfone Chemical compound C1=CC(Cl)=CC=C1S(=O)(=O)C1=CC=C(Cl)C=C1 GPAPPPVRLPGFEQ-UHFFFAOYSA-N 0.000 description 1
- PSCXFXNEYIHJST-UHFFFAOYSA-N 4-phenylbut-3-enoic acid Chemical compound OC(=O)CC=CC1=CC=CC=C1 PSCXFXNEYIHJST-UHFFFAOYSA-N 0.000 description 1
- SOHCOYTZIXDCCO-UHFFFAOYSA-N 6-thiabicyclo[3.1.1]hepta-1(7),2,4-triene Chemical compound C=1C2=CC=CC=1S2 SOHCOYTZIXDCCO-UHFFFAOYSA-N 0.000 description 1
- OUKZUIOFTUUCEN-UHFFFAOYSA-N 7$l^{6}-thiabicyclo[4.1.0]hepta-1,3,5-triene 7,7-dioxide Chemical group C1=CC=C2S(=O)(=O)C2=C1 OUKZUIOFTUUCEN-UHFFFAOYSA-N 0.000 description 1
- 229920001342 Bakelite® Polymers 0.000 description 1
- DTEWVDUZNQSQDV-UHFFFAOYSA-N COP(=O)(OC)SC(C1=CC=CC=C1)C=C Chemical compound COP(=O)(OC)SC(C1=CC=CC=C1)C=C DTEWVDUZNQSQDV-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- YMOONIIMQBGTDU-VOTSOKGWSA-N [(e)-2-bromoethenyl]benzene Chemical compound Br\C=C\C1=CC=CC=C1 YMOONIIMQBGTDU-VOTSOKGWSA-N 0.000 description 1
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000002585 base Substances 0.000 description 1
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- 150000003857 carboxamides Chemical class 0.000 description 1
- IBSGAWQJFSDRBJ-UHFFFAOYSA-M cesium sulfanide Chemical compound [SH-].[Cs+] IBSGAWQJFSDRBJ-UHFFFAOYSA-M 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
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- 238000005520 cutting process Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- QTNDMWXOEPGHBT-UHFFFAOYSA-N dicesium;sulfide Chemical compound [S-2].[Cs+].[Cs+] QTNDMWXOEPGHBT-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
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- 238000010030 laminating Methods 0.000 description 1
- 239000004611 light stabiliser Substances 0.000 description 1
- GLNWILHOFOBOFD-UHFFFAOYSA-N lithium sulfide Chemical compound [Li+].[Li+].[S-2] GLNWILHOFOBOFD-UHFFFAOYSA-N 0.000 description 1
- HXQGSILMFTUKHI-UHFFFAOYSA-M lithium;sulfanide Chemical compound S[Li] HXQGSILMFTUKHI-UHFFFAOYSA-M 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 125000004957 naphthylene group Chemical group 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920001596 poly (chlorostyrenes) Polymers 0.000 description 1
- 229920001608 poly(methyl styrenes) Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- ZOCLAPYLSUCOGI-UHFFFAOYSA-M potassium hydrosulfide Chemical compound [SH-].[K+] ZOCLAPYLSUCOGI-UHFFFAOYSA-M 0.000 description 1
- DPLVEEXVKBWGHE-UHFFFAOYSA-N potassium sulfide Chemical compound [S-2].[K+].[K+] DPLVEEXVKBWGHE-UHFFFAOYSA-N 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004439 roughness measurement Methods 0.000 description 1
- LXOXXUIVMOYGST-UHFFFAOYSA-M rubidium(1+);sulfanide Chemical compound [SH-].[Rb+] LXOXXUIVMOYGST-UHFFFAOYSA-M 0.000 description 1
- AHKSSQDILPRNLA-UHFFFAOYSA-N rubidium(1+);sulfide Chemical compound [S-2].[Rb+].[Rb+] AHKSSQDILPRNLA-UHFFFAOYSA-N 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- HYHCSLBZRBJJCH-UHFFFAOYSA-M sodium hydrosulfide Chemical compound [Na+].[SH-] HYHCSLBZRBJJCH-UHFFFAOYSA-M 0.000 description 1
- 229910052979 sodium sulfide Inorganic materials 0.000 description 1
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
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- FIONWRDVKJFHRC-UHFFFAOYSA-N trimethyl(2-phenylethenyl)silane Chemical compound C[Si](C)(C)C=CC1=CC=CC=C1 FIONWRDVKJFHRC-UHFFFAOYSA-N 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- 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
- B29C55/14—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial successively
- B29C55/143—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial successively firstly parallel to the direction of feed and then transversely thereto
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/05—Filamentary, e.g. strands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- 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
- B29C55/14—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial successively
-
- 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
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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
- C08L25/00—Compositions 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 an aromatic carbocyclic ring; Compositions of derivatives of such polymers
- C08L25/02—Homopolymers or copolymers of hydrocarbons
- C08L25/04—Homopolymers or copolymers of styrene
- C08L25/06—Polystyrene
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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
- C08L81/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur with or without nitrogen, oxygen or carbon only; Compositions of polysulfones; Compositions of derivatives of such polymers
- C08L81/02—Polythioethers; Polythioether-ethers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
- B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
- B29C48/914—Cooling of flat articles, e.g. using specially adapted supporting means cooling drums
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/919—Thermal treatment of the stream of extruded material, e.g. cooling using a bath, e.g. extruding into an open bath to coagulate or cool the material
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- 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
- B29K2025/00—Use of polymers of vinyl-aromatic compounds or derivatives thereof as moulding material
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- 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
- B29K2025/00—Use of polymers of vinyl-aromatic compounds or derivatives thereof as moulding material
- B29K2025/04—Polymers of styrene
- B29K2025/06—PS, i.e. polystyrene
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- 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
- B29K2081/00—Use of polymers having sulfur, with or without nitrogen, oxygen or carbon only, in the main chain, as moulding material
- B29K2081/04—Polysulfides, e.g. PPS, i.e. polyphenylene sulfide or derivatives thereof
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- 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
- B29K2105/0088—Blends of polymers
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- 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
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0037—Other properties
- B29K2995/0072—Roughness, e.g. anti-slip
- B29K2995/0073—Roughness, e.g. anti-slip smooth
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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
- C08J2381/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur with or without nitrogen, oxygen, or carbon only; Polysulfones; Derivatives of such polymers
- C08J2381/02—Polythioethers; Polythioether-ethers
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- 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
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
Definitions
- the present invention relates to a biaxially stretched polyarylene sulfide resin film in which the contradictory properties of surface flatness and slipperiness are highly balanced. More specifically, the present invention relates to a biaxially stretched polyarylene sulfide resin film having a small surface roughness and excellent surface flatness but exhibiting a small coefficient of friction and appropriate slipperiness, and a method for producing the same. .
- PAS resin Polyarylene sulfide resin
- PPS resin polyphenylene sulfide resin
- PPS resin polyphenylene sulfide resin
- the biaxially stretched PAS resin film is excellent in heat resistance, chemical resistance, hydrolysis resistance, flame resistance, mechanical strength, electrical properties, dimensional stability, and the like.
- the PAS resin is put into an extruder, melt-extruded into a sheet form from a T-die arranged at the tip of the extruder, and cast on a casting roll.
- An unstretched sheet is produced by a method of rapid cooling.
- the unstretched sheet is biaxially stretched by a simultaneous biaxial stretching method or a sequential biaxial stretching method.
- the simultaneous biaxial stretching method is less productive than the sequential biaxial stretching method. For this reason, it is preferable to employ a sequential biaxial stretching method as the stretching method.
- an unstretched sheet is brought into contact with a roll group consisting of a preheating roll, a roll before stretching (low-speed roll), and a roll after stretching (high-speed roll), and heated to the stretching temperature.
- Uniaxial stretching stretching between rolls
- the film uniaxially stretched in the longitudinal direction is introduced into a tenter stretching machine, heated to a stretching temperature in a high-temperature atmosphere, and stretched in the transverse direction.
- the biaxially stretched film is heat-fixed and then wound on a roll by a winder.
- the biaxially stretched PAS resin film formed from PAS resin has extremely small surface roughness and excellent surface flatness. Therefore, the biaxially stretched PAS resin film has a large surface friction coefficient and lacks slipperiness. As a result, it is difficult for the biaxially stretched PAS resin film to be stably stretched between rolls in the film forming process. Moreover, since the biaxially stretched PAS resin film has poor sliding property between the films, wrinkles are likely to occur during winding onto a roll.
- the biaxially stretched PAS resin film wound up on a roll may be rewound in order to be supplied to the next processing step, but it is difficult to smoothly rewind because the slipperiness between the films is poor.
- the biaxially stretched PAS resin film wound around a roll must be rewound, but smooth unwinding is difficult. Therefore, manufacturing conditions are limited.
- the capacitor film since the capacitor film has poor sliding properties between the surface of the metal vapor-deposited film and the surface of the biaxially stretched PAS resin film, it is not necessary to strictly control the conditions such as winding, cutting, and secondary processing. Good products are likely to occur.
- the biaxially stretched PAS resin film is excellent in surface flatness, it is poor in slipperiness and difficult to manage conditions in the manufacturing process and processing process. For this reason, when a biaxially stretched PAS resin film is produced by a sequential biaxial stretching method, it is common to include an inorganic filler such as calcium carbonate or silica in the PAS resin. By using a PAS resin composition containing a solid additive such as an inorganic filler, a biaxially stretched PAS resin film including a roll-to-roll stretching process can be smoothly formed. In addition, the obtained biaxially stretched PAS resin film has an appropriate surface roughness and is excellent in slipperiness.
- the biaxially stretched PAS resin film formed from a PAS resin composition containing an inorganic filler becomes too slippery, the film wound around the roll becomes easy to unravel, and the running stability on the roll is impaired. The handleability is reduced. If the surface roughness of the biaxially stretched PAS resin film becomes too large, its flatness is impaired. Therefore, the flatness and slipperiness of the biaxially stretched PAS resin film are appropriately balanced using a PAS resin composition containing a small amount of an inorganic filler such as calcium carbonate.
- JP-A-9-278912 (Patent Document 1) and JP-A-9-300365 (Patent Document 2) contain a lubricant such as silica fine powder and have an average surface roughness Ra.
- a biaxially oriented polyphenylene sulfide film for mold release having a thickness of 0.005 to 0.03 ⁇ m.
- Patent Document 3 Japanese Patent Application Laid-Open No. 2006-21372 is formed from a polyphenylene sulfide resin composition containing a lubricant such as calcium carbonate powder on both surfaces of a resin composition layer having a heat deformation temperature of 70 to 150 ° C.
- a release laminated film in which a biaxially stretched polyphenylene sulfide film is laminated is disclosed.
- Patent Document 4 discloses a biaxially oriented polyphenylene sulfide film in which calcium carbonate fine particles are contained in a biaxially oriented polyphenylene sulfide resin film to improve the slip property, and a metal layer on the film. Has been disclosed.
- biaxially stretched PAS resin films containing inorganic fillers such as calcium carbonate and silica tend to form coarse protrusions due to secondary aggregation of the inorganic filler, and voids tend to occur around the inorganic filler during stretching. In addition, the inorganic filler tends to fall off from the film.
- a biaxially stretched PAS resin film to electrical and electronic parts such as a capacitor film and an insulating film, it is required to have a high balance between flatness and slipperiness without containing an inorganic filler. .
- the biaxially stretched PAS resin film is used as an ultrathin copper foil carrier film having a thickness of about 1.5 to 5.0 ⁇ m.
- a thin liquid crystal film with a film thickness of about 0.5 to 5.0 ⁇ m is difficult to manufacture from a liquid crystal material alone, so a thin film of liquid crystal material is formed on a support made of a biaxially stretched PAS resin film. It is manufactured by the method.
- the biaxially stretched PAS resin film containing an inorganic filler has fine irregularities formed on the surface due to the inorganic filler.
- the biaxially stretched PAS resin film is used as a carrier film for forming an ultrathin copper foil or a support for forming an ultrathin liquid crystal film
- the unevenness is easily transferred to the surface of the ultrathin copper foil or ultrathin liquid crystal film.
- a release film is used.
- a cover lay film provided with a thermosetting adhesive layer is hot-press bonded to a flexible printed circuit board on which an electric circuit is formed
- a release film is disposed between the cover lay film and the press hot plate, The coverlay film is prevented from adhering to the press hot plate.
- a pair of copper-clad laminates are used as double-sided outer layers, and one or more inner-layer circuit boards are alternately stacked on the inner side via prepregs.
- the prepreg is cured by pressing to form a laminate in which the layers are integrated.
- multiple multilayer printed wiring boards are manufactured simultaneously by hot pressing.
- the multilayer printed wiring boards are A release film is inserted in The prepreg is obtained by impregnating a base material such as glass cloth or paper with a thermosetting resin such as a phenol resin, an epoxy resin, or a polyester resin.
- a single-sided copper-clad laminate for printed wiring boards by laminating copper foil and prepreg roughened on both sides, a plurality of combinations of copper foil and prepreg are stacked and heat pressed to simultaneously Manufactures copper-clad laminates. At this time, a release film is interposed between each combination of the copper foil and the prepreg to protect the roughened surface of the copper foil.
- release films are widely used in circuit board manufacturing processes.
- heat release is performed under conditions of high temperature and long time, so the release film has excellent heat resistance, resistance to outgas from adhesives and insulating resins, and resistance to decomposition by moisture. It is demanded.
- the release film adheres to the abutting surface such as a substrate by hot pressing.
- the release film is required to be excellent in releasability and easily peelable from the surface of the adherend (adhering partner) after hot pressing.
- Biaxially stretched PAS resin film has many of the properties required for a release film, such as heat resistance, chemical resistance, hydrolysis resistance, mechanical strength, and dimensional stability. In addition, it is difficult to achieve a high balance, and depending on the application object, there is a problem that the peelability tends to be insufficient.
- Patent Document 5 JP-A-11-349703 discloses a release film made of a cast film of a resin containing a syndiotactic styrene polymer as a main component.
- the resin is a resin composition in which a thermoplastic resin such as styrene butadiene rubber is added to a syndiotactic styrene polymer, the cast film has insufficient characteristics such as heat resistance and chemical resistance. Is.
- Patent Document 6 JP-A-2-175228 (Patent Document 6), it is possible to improve the moldability and stretchability of PAS resin by blending syndiotactic polystyrene with PAS resin, and heat treatment under mild conditions. It is disclosed that a biaxially stretched PAS resin film having little dimensional change up to 220 ° C. can be obtained. However, Patent Document 6 does not disclose knowledge about the surface roughness, friction coefficient, slipperiness, releasability, etc. of the biaxially stretched PAS resin film.
- JP-A-9-278912 Japanese Patent Laid-Open No. 9-300365 JP 2006-21372 A JP 2004-149740 A JP 11-349703 A JP-A-2-175228 (corresponding to EP0358135)
- An object of the present invention is to provide a biaxially stretched polyarylene sulfide resin that has a high balance between surface flatness and slipperiness and excellent releasability without using a solid additive such as an inorganic filler as a lubricant. It is in providing a film and its manufacturing method.
- the present inventors have conducted intensive research to solve the above problems.
- the PAS resin pellets and the syndiotactic polystyrene resin (hereinafter abbreviated as “SPS resin”) pellets were adjusted so that the ratio of the SPS resin to 100 parts by mass of the PAS resin was 0.1 to 30 parts by mass.
- the center line average roughness Ra and the maximum height R max is extremely small, the flatness of the surface is remarkably excellent.
- the biaxially stretched PAS resin film of the present invention has a small surface roughness and excellent flatness, the static friction coefficient and dynamic friction coefficient between the films are small, and good and moderate slip properties are imparted. Has been. For this reason, the biaxially stretched PAS resin film of the present invention does not adhere to the metal roll in the production process, and does not wrinkle when wound on the roll. The biaxially stretched PAS resin film of the present invention can smoothly rewind from the wound roll.
- the biaxially stretched PAS resin film of the present invention is excellent in slipperiness, it can be easily processed into various uses such as a capacitor film and a carrier film. Moreover, since the biaxially stretched PAS resin film of the present invention can be easily peeled off from the adherend after hot pressing for a long time at a high temperature, it has characteristics suitable for a release film in the circuit board manufacturing process. It can be demonstrated. The present invention has been completed based on these findings.
- a biaxially stretched polyarylene sulfide resin formed from a resin composition containing 0.1 to 30 parts by mass of syndiotactic polystyrene resin with respect to 100 parts by mass of the polyarylene sulfide resin.
- a center line average roughness Ra measured in accordance with JIS B 0601-1982 of the Japanese Industrial Standard is within a range of 0.01 to 0.09 ⁇ m, and a maximum height R max is 1 0.02 ⁇ m or less
- a static friction coefficient measured in accordance with JIS K 7125 of Japanese Industrial Standard is 1.00 or less and a dynamic friction coefficient is 0.70 or less.
- a stretched polyarylene sulfide resin film is provided.
- the following steps 1 to 5 (1) Mix the polyarylene sulfide resin pellets and the syndiotactic polystyrene resin pellets so that the ratio of the syndiotactic polystyrene resin to 100 parts by mass of the polyarylene sulfide resin is 0.1 to 30 parts by mass.
- Producing step 1 (2) The mixture is supplied to an extruder, melted and kneaded at a temperature in the range of 280 to 340 ° C., melt-extruded into a sheet form from a T die attached to the tip of the extruder, and then melted in a sheet form Step 2 in which an article is rapidly cooled by contacting with a casting drum maintained at a surface temperature within a range of 20 to 60 ° C. to form an unstretched sheet; (3) The unstretched sheet is heated by bringing it into contact with a roll group consisting of a preheating roll, a low-speed roll, and a high-speed roll each having a surface temperature adjusted within the range of 80 to 95 ° C.
- a roll group consisting of a preheating roll, a low-speed roll, and a high-speed roll each having a surface temperature adjusted within the range of 80 to 95 ° C.
- a biaxially stretched PAS resin film having a high balance between surface flatness and slipperiness and excellent releasability without using an inorganic filler as a lubricant is provided.
- the biaxially stretched PAS resin film of the present invention is excellent in film formability, stretchability, workability, and the like.
- the biaxially stretched PAS resin film of the present invention is excellent in heat resistance, chemical resistance, hydrolysis resistance, dimensional stability, peelability and the like suitable for a release film used in a circuit board manufacturing process.
- PAS resin Polyarylene sulfide resin
- the PAS resin used in the present invention is an aromatic compound mainly composed of an arylene sulfide repeating unit represented by the structural formula [—Ar—S—] (wherein —Ar— is an arylene group). Is a group polymer.
- [—Ar—S—] is defined as 1 mol (basic mol)
- the PAS resin used in the present invention usually has this repeating unit of 50 mol% or more, preferably 70 mol% or more, more preferably 90 mol%. It is a polymer containing above.
- arylene group examples include a p-phenylene group, an m-phenylene group, a substituted phenylene group (the substituent is preferably an alkyl group having 1 to 6 carbon atoms or a phenyl group), p, p′-di Examples thereof include a phenylene sulfone group, p, p′-biphenylene group, p, p′-diphenylenecarbonyl group, and naphthylene group.
- PAS resin polymers having the same arylene group can be preferably used. However, from the viewpoint of processability and heat resistance, a copolymer containing two or more arylene groups can also be used.
- PAS resins a PPS resin having a repeating unit of p-phenylene sulfide as a main constituent element is particularly preferable because of excellent processability and industrial availability.
- PAS resin examples include polyarylene ketone sulfide and polyarylene ketone ketone sulfide.
- the copolymer examples include a random or block copolymer having a repeating unit of p-phenylene sulfide and a repeating unit of m-phenylene sulfide, a random or block copolymer having a repeating unit of phenylene sulfide and a repeating unit of arylene ketone sulfide, Examples thereof include a random or block copolymer having a repeating unit of phenylene sulfide and a repeating unit of arylene ketone ketone sulfide, and a random or block copolymer having a repeating unit of phenylene sulfide and a repeating unit of arylene sulfone sulfide.
- PAS resins are generally crystalline polymers.
- the PAS resin is preferably a linear polymer from the viewpoint of toughness and strength.
- PPS resins there are two types of PAS resins represented by PPS resins. One of them is a type in which a polymer having a low polymerization degree is obtained by polymerization and then heated in the presence of oxygen to perform partial crosslinking to increase the molecular weight. This is generally called a crosslinking type.
- the other is a type that obtains a high molecular weight polymer upon polymerization. This is generally called a linear type.
- the linear PAS resin may have some branched structures and / or crosslinked structures introduced therein.
- the PAS resin can be obtained by a known method in which a sulfur source and a dihalogen-substituted aromatic compound are polymerized in a polar solvent.
- the sulfur source include alkali metal sulfides, alkali metal hydrosulfides, and mixtures thereof.
- Alkali metal sulfides include lithium sulfide, sodium sulfide, potassium sulfide, rubidium sulfide, cesium sulfide and the like.
- Alkali metal hydrosulfides include lithium hydrosulfide, sodium hydrosulfide, potassium hydrosulfide, rubidium hydrosulfide, cesium hydrosulfide, and the like.
- Alkali metal hydroxides include lithium hydroxide, sodium hydroxide, potassium hydroxide, rubidium hydroxide, cesium hydroxide, and the like.
- dihalogen-substituted aromatic compound examples include p-dichlorobenzene, m-dichlorobenzene, 2,5-dichlorotoluene, p-dibromobenzene, 2,6-dichloronaphthalene, 1-methoxy-2,5-dichlorobenzene.
- a small amount of a polyhalogen-substituted aromatic compound having 3 or more halogen substituents per molecule can be used in combination.
- the polyhalogen-substituted aromatic compound include 1,2,3-trichlorobenzene, 1,2,3-tribromobenzene, 1,2,4-trichlorobenzene, 1,2,4-tribromobenzene, 1 , 3,5-trichlorobenzene, 1,3,5-tribromobenzene, 1,3-dichloro-5-bromobenzene, and other trihalogen-substituted aromatic compounds, and alkyl-substituted products thereof.
- 1,2,4-trichlorobenzene, 1,3,5-trichlorobenzene, and 1,2,3-trichlorobenzene are more preferable from the viewpoints of economy, reactivity, and physical properties.
- the polar solvent examples include N-alkylpyrrolidone such as N-methyl-2-pyrrolidone, aprotic organic amide solvents represented by 1,3-dialkyl-2-imidazolidinone, tetraalkylurea, hexaalkylphosphate triamide, and the like. It is preferable because the stability of the reaction system is high and a high molecular weight polymer is easily obtained.
- the melt viscosity of the PAS resin used in the present invention measured at a temperature of 310 ° C. and a shear rate of 1,200 / sec is preferably usually 20 to 2,000 Pa ⁇ s, more preferably 30 to 1,800 Pa ⁇ s, and still more preferably. Is in the range of 40 to 1,500 Pa ⁇ s.
- the melt viscosity of the PAS resin is too small, the mechanical properties of the biaxially stretched film are insufficient, and when it is too large, the extrusion moldability is deteriorated.
- syndiotactic polystyrene resin used in the present invention is a polystyrene having a highly syndiotactic structure. In other words, it means a polystyrene having a main chain configuration mainly syndiotactic. . That is, syndiotactic polystyrene resins are polystyrenes mainly having a three-dimensional structure in which side chain (substituted) phenyl groups are alternately located in opposite directions on asymmetric carbon atoms constituting the main chain.
- the racemic pentad tacticity determined by the nuclear magnetic resonance method of the SPS resin is preferably 50% or more, more preferably 80% or more, still more preferably 90% or more, and particularly preferably 95% or more.
- the SPS resin used in the present invention is desirably a polystyrene having a high degree of syndiotacticity such that the racemic pentad tacticity is 90% or more, and further 95% or more.
- polystyrenes constituting the SPS resin examples include polystyrene; poly (methyl styrene), poly (dimethyl styrene), poly (t-butyl styrene) and the like, which have one or more alkyl groups having 1 to 5 carbon atoms. (Alkylstyrene); poly (chlorostyrene), poly (bromostyrene), poly (fluorostyrene), poly (halogenated styrene) such as poly (o-methyl-p-fluorostyrene); poly (chloromethylstyrene), etc.
- polystyrenes can be used alone or in combination of two or more. These polystyrenes may be copolymers having styrene or a styrene derivative as a main component. Among these polystyrenes, syndiotactic polystyrene (homopolymer) is preferable from the viewpoints of heat resistance and crystallization speed.
- the SPS resin may contain a small amount of other components such as an elastomer.
- the weight average molecular weight (Mw) measured by gel permeation chromatography (GPC) of the SPS resin used in the present invention is preferably 10,000 or more, more preferably 50,000 or more, and particularly preferably 100,000 or more. .
- the upper limit of the weight average molecular weight is usually 1,000,000, and in many cases 700,000.
- the melt flow rate (MFR) of the SPS resin used in the present invention is preferably 3 g / 10 min or more, more preferably 5 g / 10 min or more, particularly preferably 8 g when measured at a temperature of 300 ° C. and a load of 1.20 kgf. / 10 minutes or more.
- the upper limit of MFR is usually 50 g / 10 minutes, and in many cases 40 g / 10 minutes.
- the MFR may be measured at a temperature of 300 ° C. and a load of 2.16 kgf. In that case, the MFR is preferably 5 g / 10 min or more, more preferably 8 g / 10 min or more,
- the upper limit is preferably 50 g / 10 minutes. If the MFR of the SPS resin is too small, melt kneading with the PAS resin in the extruder may become non-uniform or the operation of the extruder may become unstable.
- the melting point (Tm) of the SPS resin measured using a differential scanning calorimeter is preferably 250 to 310 ° C, more preferably 260 to 290 ° C, and particularly preferably 265 to 275 ° C.
- Tm melting point
- SPS resin is a polymer with a high melting point and a high crystallization rate.
- SPS resin is dispersed as moderately sized particles (1 to 10 ⁇ m) near the surface layer of a biaxially stretched PAS resin film. And it is estimated that the function as a lubricant can be exhibited.
- the tendency of the SPS resin particles in the biaxially stretched PAS resin film to form coarse protrusions on the surface of the biaxially stretched PAS resin film is suppressed. For this reason, although the biaxially stretched PAS resin film of the present invention has a small surface roughness and excellent flatness, it has good slipperiness and also excellent peelability.
- XAREC registered trademark
- MFR measured at a temperature of 300 ° C. and a load of 2.16 kgf 15 g / 10 min
- the biaxially stretched PAS resin film of the present invention is a proportion of 0.1 to 30 parts by mass of syndiotactic polystyrene resin (SPS resin) with respect to 100 parts by mass of polyarylene sulfide resin (PAS resin).
- SPS resin syndiotactic polystyrene resin
- PAS resin polyarylene sulfide resin
- the proportion of the SPS resin is preferably in the range of 0.3 to 25 parts by mass, more preferably 0.5 to 20 parts by mass. If the ratio of the SPS resin to 100 parts by mass of the PAS resin is too small, the surface roughness can be reduced, but the friction coefficient (static friction coefficient and dynamic friction coefficient) tends to increase. When the proportion of the SPS resin becomes too large, the surface roughness (centerline average roughness Ra and maximum height Rmax ) tends to increase.
- the biaxially stretched PAS resin film of the present invention has a center line average roughness Ra of 0.01 to 0.09 ⁇ m, preferably 0.01 to 0.07, measured in accordance with JIS B 0601-1982 of the Japanese Industrial Standard. Within range. Further, the biaxially stretched PAS resin film of the present invention has a maximum height R max measured according to JIS B 0601-1982 of 1.0 ⁇ m or less, and preferably in the range of 0.0 to 1.0 ⁇ m. The maximum height R max can often be reduced to a range of 0.0 to 0.9 ⁇ m or 0.0 to 0.5 ⁇ m.
- the center line average roughness Ra is too large, the flatness of the biaxially stretched PAS resin film becomes insufficient.
- the maximum height R max is too large, the flatness of the biaxially stretched PAS resin film becomes insufficient, and in addition, the coarse protrusion is a layer in which the biaxially stretched PAS resin film adheres (for example, a metal oxide) Adverse effects on the deposited film, liquid crystal film, ultrathin copper foil, circuit board, etc.).
- the biaxially stretched PAS resin film of the present invention has a static friction coefficient of 1.00 or less as measured in accordance with Japanese Industrial Standard JIS K 7125.
- the static friction coefficient of the biaxially stretched PAS resin film is preferably in the range of 0.33 to 1.00, more preferably 0.35 to 0.95, and particularly preferably 0.40 to 0.90.
- the biaxially stretched PAS resin film of the present invention has a dynamic friction coefficient of 0.70 or less measured according to JIS K 7125.
- the dynamic friction coefficient of the biaxially stretched PAS resin film is preferably in the range of 0.35 to 0.70, more preferably 0.38 to 0.69, and particularly preferably 0.40 to 0.68.
- the static friction coefficient and the dynamic friction coefficient of the biaxially stretched PAS resin film of the present invention are too large, the slipperiness is lowered, and the film forming property, stretchability, workability, and the like are lowered.
- the static friction coefficient and the dynamic friction coefficient of the biaxially stretched PAS resin film are excellent in slipperiness, but if it is too small, the slipperiness between films becomes too large, and workability and handling May decrease.
- the biaxially stretched PAS resin film of the present invention can balance the flatness and slipperiness of the surface to a high degree by having the characteristics relating to the surface roughness and the coefficient of friction.
- the biaxially stretched PAS resin film of the present invention is excellent in surface flatness and, when used as a release film, is excellent in peelability from an adherend (adhering partner).
- the biaxially stretched PAS resin film of the present invention has a stretch ratio in the machine direction (MD) in the range of 2.0 to 5.0 times, and a stretch ratio in the transverse direction (TD) of 2.0 to 5.0. Within double range.
- the thickness of the biaxially stretched PAS resin film is usually in the range of 5 to 200 ⁇ m, preferably 10 to 100 ⁇ m, more preferably 20 to 80 ⁇ m. This thickness can be appropriately selected according to the application.
- the biaxially stretched PAS resin film of the present invention is not limited as long as it has the characteristics of the surface roughness and the friction coefficient as described above. It can be produced by a sequential biaxial stretching method under limited conditions including steps 1 to 5.
- step 1 (2) The mixture is supplied to an extruder, melted and kneaded at a temperature in the range of 280 to 340 ° C., melt-extruded into a sheet form from a T die attached to the tip of the extruder, and then melted in a sheet form Step 2 in which an article is rapidly cooled by contacting with a casting drum maintained at a surface temperature within a range of 20 to 60 ° C.
- the unstretched sheet is heated by bringing it into contact with a roll group consisting of a preheating roll, a low-speed roll, and a high-speed roll each having a surface temperature adjusted within the range of 80 to 95 ° C.
- a film uniaxially stretched in the longitudinal direction is introduced into a tenter stretching machine and heated at an atmospheric temperature in the range of 80 to 95 ° C., and is expanded 2.0 to 5.0 times in the lateral direction by a diverging tenter.
- Step 4 Stretching 4 at a stretching ratio within the range; and (5) The biaxially stretched film obtained in the step 4 is relaxed at a relaxation rate in the range of 0.5 to 7% in the lateral direction by reducing the distance between the clips of the tenter stretching machine.
- Step 5 in which heat setting is performed by holding in an atmosphere within a range of 260 ° C. and 295 ° C. for 35 to 120 seconds.
- step 1 the PAS resin pellets and the SPS resin pellets are mixed so that the ratio of the SPS resin to 100 parts by mass of the PAS resin is 0.1 to 30 parts by mass to prepare a mixture.
- This mixing may be dry blending or melt kneading of both.
- the mixture is a pellet mixture by dry blending
- step 2 the pellet mixture is supplied to an extruder.
- the mixture is a melt-kneaded product
- the melt-kneaded product is pelletized and then supplied to the extruder. It is preferable that the mixing is performed by dry blending, and then the pellet mixture is supplied to the extruder in Step 2 described above.
- the ratio of the SPS resin to 100 parts by mass of the PAS resin is in the range of 0.1 to 30 parts by mass, preferably 0.3 to 25 parts by mass, more preferably 0.5 to 20 parts by mass.
- the size and the length of each pellet are usually in the range of 1 to 10 mm, preferably 1.5 to 8 mm, more preferably 2 to 6 mm. However, the size is not limited to these.
- the shape may be larger than that. It is preferable to use each resin component in the form of pellets because the transportability, meterability, handling properties, and the like are improved.
- the PAS resin pellets and SPS resin pellets may contain an antioxidant, a heat stabilizer, a light stabilizer, an ultraviolet absorber, a plasticizer, a lubricant, etc. From the viewpoint of achieving a high balance and suppressing falling particles, it is preferable not to include a solid additive such as an inorganic filler.
- step 2 the mixture, preferably a pellet mixture, is supplied to an extruder, melted and kneaded at a temperature in the range of 280 to 340 ° C., and melt-extruded into a sheet form from a T die attached to the tip of the extruder. Subsequently, the sheet-like melt is brought into contact with a casting drum maintained at a surface temperature in the range of 20 to 60 ° C. and rapidly cooled to form an unstretched sheet.
- a casting drum maintained at a surface temperature in the range of 20 to 60 ° C. and rapidly cooled to form an unstretched sheet.
- the melt kneading temperature in the extruder is in the range of 280 to 340 ° C., preferably 290 to 330 ° C., more preferably more than 300 ° C. and 320 ° C. or less. If the melt kneading temperature is too low, the PAS resin will not melt sufficiently. If the melt kneading temperature is too high, the SPS resin begins to thermally decompose. By controlling the melt kneading temperature within the above range, the SPS resin can be dispersed in an appropriate size in the PAS resin.
- the surface temperature of the casting drum is 20 to 60 ° C, preferably 30 to 50 ° C.
- the thickness of the unstretched sheet can be appropriately set according to the stretch ratio and the thickness of the biaxially stretched PAS resin film, but is usually in the range of 50 to 1,000 ⁇ m, preferably 100 to 800 ⁇ m, more preferably 150 to 500 ⁇ m. Is within.
- the unstretched sheet is heated by bringing it into contact with a group of rolls having a surface temperature adjusted within the range of 80 to 95 ° C., and the length is in the range of 2.0 to 5.0 times in the longitudinal direction. Uniaxial stretching between rolls is performed so that the inner stretching ratio is achieved.
- the unstretched sheet is stretched in the machine direction (MD) using a roll group.
- the roll group is a combination of a preheating roll, a low speed roll (roll before stretching), and a high speed roll (roll after stretching). Each roll is composed of one or a plurality of rolls.
- the temperature of the unstretched sheet is raised smoothly to a temperature suitable for stretching.
- the surface temperature of the preheating roll is preferably 80 to 90 ° C, more preferably 80 to 88 ° C.
- the unstretched sheet is stretched in the uniaxial direction (MD) using the difference in rotational speed between the rolls.
- the difference in rotational speed between the low-speed roll and the high-speed roll is relative, and the rotational speed of each roll can be adjusted by a desired uniaxial stretching ratio.
- the surface temperature of the low-speed roll and the high-speed roll is preferably in the range of 85 ° C. to 95 ° C., more preferably 88 ° C. to 95 ° C.
- the unstretched sheet is adjusted to a temperature suitable for stretching by bringing it into contact with a preheating roll, a low-speed roll, and a high-speed roll heated to a predetermined surface temperature, and the difference in rotational speed between the low-speed roll and the high-speed roll is used. Then, uniaxial stretching (stretching between rolls) is performed in the longitudinal direction. Since the unstretched sheet and uniaxially stretched film of the present invention have good slipperiness, stretching between rolls using a roll group can be carried out smoothly.
- the draw ratio in the machine direction is preferably in the range of 2.5 to 4.5 times, more preferably 3.0 to 4.0 times.
- the uniaxial stretching ratio is too small, it is difficult to sufficiently improve heat resistance, mechanical strength, and the like. If the uniaxial stretching ratio is too large, the film may be broken or heat setting may be difficult.
- the film uniaxially stretched in the longitudinal direction is introduced into a tenter stretching machine and heated at an atmospheric temperature in the range of 80 to 95 ° C., and 2.0 to 5.0 in the lateral direction by a diverging tenter.
- the film is stretched at a draw ratio within the range of double. Since the uniaxially stretched film of the present invention has good slipperiness, it can be smoothly conveyed to a tenter stretching machine.
- both ends in the width direction of the uniaxially stretched film are sandwiched between clips and expanded in the width direction to perform stretching in the transverse direction (TD).
- the transverse draw ratio is preferably in the range of 2.5 to 4.5 times, more preferably 3.0 to 4.0 times. If the draw ratio is too small, it is difficult to sufficiently improve the heat resistance and mechanical strength. When this draw ratio becomes too large, the film breaks or heat setting becomes difficult.
- the relaxation rate of the biaxially stretched film obtained in the step 4 is reduced within the range of 0.5 to 7% in the lateral direction (width direction) by reducing the distance between the clips of the tenter stretching machine.
- heat fixation is performed by holding in an atmosphere within the range of 260 ° C. to 295 ° C. for 35 to 120 seconds.
- the relaxation rate in the width direction is preferably in the range of 1 to 6%, more preferably 2 to 5%.
- the heat treatment temperature for heat setting is preferably in the range of 265 to 290 ° C.
- the heat treatment time is preferably in the range of 50 to 100 seconds.
- Heat treatment, chemical resistance, hydrolysis resistance, flame resistance, mechanical properties are achieved by performing heat treatment at high temperatures for a relatively long time under such restricted relaxation conditions (also referred to as “under restricted shrinkage”). It is possible to easily obtain a biaxially stretched PAS resin film having excellent mechanical strength, electrical characteristics, dimensional stability, and the like, and having surface roughness and a coefficient of friction within desired ranges.
- the thickness of the biaxially stretched PAS resin film produced by the production method of the present invention is usually in the range of 5 to 200 ⁇ m, preferably 10 to 100 ⁇ m, more preferably 20 to 80 ⁇ m.
- the center line average roughness Ra is in the range of 0.01 to 0.09 ⁇ m
- the maximum height R max is 1.0 ⁇ m or less
- the static friction coefficient is 1.00 or less.
- a biaxially stretched PAS resin film having a dynamic friction coefficient of 0.70 or less can be produced.
- melt viscosity About 20 g of a dry polymer was used as a sample, and its melt viscosity was measured by Capillograph 1-C manufactured by Toyo Seiki. A 1 mm ⁇ ⁇ 10 mmL flat die was used as the capillary. The measurement temperature was 310 ° C. The sample was introduced into the apparatus and held at 310 ° C. for 5 minutes, and then the melt viscosity was measured at a shear rate of 1,200 / sec.
- MFR Melt flow rate
- Tm Melting point
- test piece A having a size of about 80 mm ⁇ 200 mm and a square test piece B having a side length of 63.5 mm were cut from the biaxially stretched film.
- the test piece A was placed on the test table of the moving table device for friction coefficient measurement so that the long axis of the test piece A coincided with the long axis of the test table, and the four ends were fixed with tape.
- the test piece B was fixed to the bottom surface of a sliding piece with a weight of 192 g having a square with a side length of 63.5 mm through a double-sided adhesive tape.
- a sliding piece was placed on the specimen A and the specimen B was stacked. The sliding piece was connected to the load cell via a spring.
- the maximum stress obtained first is the static friction force. In this way, the static friction coefficient and the dynamic friction coefficient between the first surface and the second surface of the biaxially stretched film were measured.
- the maximum height R max is determined by setting the interval between the two straight lines to the vertical magnification of the sectional curve when the extracted part is sandwiched by two straight lines parallel to the parallel line of the part extracted from the sectional profile (primary profile) by the reference line length. Measured in the direction, this value is expressed in ⁇ m.
- the cut-off value 0.25 mm or 0.08 mm was adopted based on whether or not a waviness period with an amplitude of around 1.0 ⁇ m in the three-dimensional surface roughness diagram was observed.
- the cut-off means that unnecessary undulation components are cut off from the cross-sectional curve when measuring the surface roughness.
- the undulation period surface roughness wavelength
- the cutoff value is 0.25 mm, and when the undulation is not observed, the cutoff value is 0.08 mm.
- the measurement speed was slowed down so that the surface shape could be traced more finely.
- a prepreg impregnated with epoxy resin [prepreg FR-4 for epoxy multilayer printed wiring board (product number: EI-6765) manufactured by Sumitomo Bakelite Co., Ltd.] is sandwiched between biaxially stretched films, and is used at 125 ° C. for 30 minutes using a press machine After holding and semi-curing the epoxy resin, the prepreg was cured by hot pressing for 45 minutes under conditions of a temperature of 175 ° C. and a pressure of 2.2 MPa. The biaxially stretched film was peeled off from the cured prepreg by hand, and the peelability of the biaxially stretched film was evaluated according to the following criteria.
- A The biaxially stretched film can be easily peeled without tearing or tearing;
- B The biaxially stretched film can be peeled off, but depending on how it is peeled off, the biaxially stretched film may be torn or torn, and the workability is slightly inferior;
- C The biaxially stretched film has strong adhesion and cannot be easily peeled off.
- Linear polyphenylene sulfide powder (melt viscosity: 160 Pa ⁇ s) is supplied to an extruder and melt extruded into the shape of a strand. After the strand is immersed in a cooling water bath and solidified, the strand is cut with a pellet pelletizer ( Hereinafter, “PPS pellet” was prepared.
- the pellet mixture was prepared by adding the SPS pellet (a) at a ratio of 0.5 part by mass to 100 parts by mass of the PPS pellets, and mixing using a blender.
- the sheet-like melt from the T die was cast on a metal casting drum maintained at a surface temperature of 40 ° C. and quenched to prepare an unstretched sheet having a thickness of about 400 ⁇ m.
- the unstretched sheet is heated by bringing it into contact with the surface of a preheating roll whose surface temperature is adjusted to 85 ° C., and then heated by bringing it into contact with a heating roll whose surface temperature is adjusted to 90 ° C. in the machine direction (MD).
- Roll-to-roll stretching was performed so that the length was 3.6 times.
- the film stretched in the longitudinal direction was introduced into a tenter stretching machine, and stretched 3.4 times in the transverse direction (TD) by a diverging tenter at an atmospheric temperature of 92 ° C. After stretching, the distance between the clips of the tenter stretching machine was shortened to relax the biaxially stretched film by 4% in the transverse direction, and in this state, the film was held in a 270 ° C.
- the PPS resin biaxially oriented film (Comparative Example 1) has a smaller both the center line average roughness Ra and the maximum height R max, is excellent in flatness, its On the other hand, the coefficient of static friction and the coefficient of dynamic friction are large, and the slipperiness between films is poor. For this reason, the biaxially stretched film of Comparative Example 1 was difficult to wind. Furthermore, the biaxially stretched film of Comparative Example 1 had poor peelability.
- a biaxially stretched film formed from a PPS resin composition containing calcium carbonate and calcium stearate (Comparative Example 2) has a small center line average roughness Ra, a small static friction coefficient and a small dynamic friction coefficient, but has fine calcium carbonate particles, etc. Due to the secondary aggregation of the inorganic fine particles, the maximum height R max increases. For this reason, the biaxially stretched film of Comparative Example 2 has insufficient surface flatness. The biaxially stretched film of Comparative Example 2 had poor peelability.
- a biaxially stretched film formed from a resin composition obtained by adding polyethylene terephthalate to a PPS resin has a small center line average roughness Ra, a small static friction coefficient and a small dynamic friction coefficient, but a maximum height R max. large.
- the biaxially stretched film of Comparative Example 3 has not only poor surface flatness but also slack and poor flatness.
- Biaxially oriented film formed from a resin composition obtained by adding high density polyethylene in the PPS resin (Comparative Example 4), the height R max is larger center line average roughness Ra and maximum, inferior in flatness of the surface is there.
- the biaxially stretched film of Comparative Example 4 was difficult to form continuously.
- XAREC syndiotactic polystyrene
- biaxially oriented PPS resin film of the present invention are smaller both the center line average roughness Ra and the maximum height R max, to be excellent in surface flatness I understand.
- these biaxially stretched PPS resin films are excellent in flatness, both the coefficient of static friction and the coefficient of dynamic friction are small, and they have good slip properties.
- the biaxially stretched PAS resin film of this invention is excellent in peelability.
- the biaxially stretched polyarylene sulfide resin film of the present invention has flatness, It can be used in a wide range of technical fields that are required to be excellent in slipperiness and releasability.
- the biaxially stretched polyarylene sulfide resin film of the present invention is used in, for example, a carrier film used in the production of a liquid crystal film or an ultrathin copper foil; an electric / electronic component such as a capacitor film or an insulating film; It can be suitably used as a release film;
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Abstract
Description
(1)ポリアリーレンスルフィド樹脂ペレットとシンジオタクチックポリスチレン樹脂ペレットとを、ポリアリーレンスルフィド樹脂100質量部に対するシンジオタクチックポリスチレン樹脂の割合が0.1~30質量部となるように混合して混合物を作製する工程1;
(2)該混合物を押出機に供給して、280~340℃の範囲内の温度で溶融混練し、該押出機の先端に取付けたTダイからシート状に溶融押出し、次いで、シート状の溶融物を、表面温度を20~60℃の範囲内に保持したキャスティングドラムと接触させて急冷し、未延伸シートを形成する工程2;
(3)該未延伸シートを、表面温度を各々80~95℃の範囲内に調節した予熱ロール、低速ロール、及び高速ロールからなるロール群と接触させて加熱するとともに、縦方向に2.0~5.0倍の範囲内の延伸倍率となるようにロール間での一軸延伸を行う工程3;
(4)縦方向に一軸延伸したフィルムをテンター延伸機に導入し、80~95℃の範囲内の雰囲気温度で加熱するとともに、末広がりのテンターにより、横方向に2.0~5.0倍の範囲内の延伸倍率で延伸する工程4;並びに、
(5)該工程4で得られた二軸延伸フィルムを、テンター延伸機のクリップ間の距離を縮めることにより、横方向に0.5~7%の範囲内の弛緩率で弛緩し、その状態で260℃超過295℃以下の範囲内の雰囲気中に35~120秒間保持して熱固定を行う工程5;
を含むことを特徴とする二軸延伸ポリアリーレンスルフィド樹脂フィルムの製造方法が提供される。
本発明で使用するPAS樹脂とは、構造式[-Ar-S-](式中、-Ar-は、アリーレン基である。)で表されるアリーレンスルフィドの繰り返し単位を主たる構成要素とする芳香族ポリマーである。[-Ar-S-]を1モル(基本モル)と定義すると、本発明で使用するPAS樹脂は、この繰り返し単位を通常50モル%以上、好ましくは70モル%以上、より好ましくは90モル%以上含有するポリマーである。
本発明で使用するシンジオタクチックポリスチレン樹脂(SPS樹脂)は、高度のシンジオタクチック構造を有するポリスチレン類であり、換言すれば、主鎖の立体配置が主としてシンジオタクチックであるポリスチレン類を意味する。すなわち、シンジオタクチックポリスチレン樹脂は、その主鎖を構成する不斉炭素原子に、側鎖の(置換)フェニル基が交互に反対方向に位置する立体構造を主として有するポリスチレン類である。
本発明の二軸延伸PAS樹脂フィルムは、ポリアリーレンスルフィド樹脂(PAS樹脂)100質量部に対し、シンジオタクチックポリスチレン樹脂(SPS樹脂)を0.1~30質量部の割合で含有する樹脂組成物から形成された二軸延伸ポリアリーレンスルフィド樹脂フィルムである。SPS樹脂の割合は、好ましくは0.3~25質量部、より好ましくは0.5~20質量部の範囲内である。PAS樹脂100質量部に対するSPS樹脂の割合が少なすぎると、表面粗さを小さくすることができるものの、摩擦係数(静摩擦係数及び動摩擦係数)が大きくなる傾向にある。SPS樹脂の割合が大きくなりすぎると、表面粗さ(中心線平均粗さRaと最大高さRmax)が大きくなる傾向にある。
本発明の二軸延伸PAS樹脂フィルムは、前記の如き表面粗さと摩擦係数の特性を有するものであればよく、その製造方法は限定されないが、好ましくは、下記工程1乃至5を含む限定された条件下での逐次二軸延伸法により製造することができる。
(2)該混合物を押出機に供給して、280~340℃の範囲内の温度で溶融混練し、該押出機の先端に取付けたTダイからシート状に溶融押出し、次いで、シート状の溶融物を、表面温度を20~60℃の範囲内に保持したキャスティングドラムと接触させて急冷し、未延伸シートを形成する工程2;
(3)該未延伸シートを、表面温度を各々80~95℃の範囲内に調節した予熱ロール、低速ロール、及び高速ロールからなるロール群と接触させて加熱するとともに、縦方向に2.0~5.0倍の範囲内の延伸倍率となるようにロール間での一軸延伸を行う工程3;
(4)縦方向に一軸延伸したフィルムをテンター延伸機に導入し、80~95℃の範囲内の雰囲気温度で加熱するとともに、末広がりのテンターにより、横方向に2.0~5.0倍の範囲内の延伸倍率で延伸する工程4;並びに、
(5)該工程4で得られた二軸延伸フィルムを、テンター延伸機のクリップ間の距離を縮めることにより、横方向に0.5~7%の範囲内の弛緩率で弛緩し、その状態で260℃超過295℃以下の範囲内の雰囲気中に35~120秒間保持して熱固定を行う工程5。
試料として乾燥ポリマー約20gを使用し、東洋精機製キャピログラフ1-Cにより、その溶融粘度を測定した。キャピラリーとして、1mmφ×10mmLのフラットダイを使用した。測定温度は、310℃とした。試料を装置内に導入し、310℃で5分間保持した後、剪断速度1,200/secで溶融粘度を測定した。
シンジオタクチックポリスチレン樹脂のメルトフローレイト(MFR)は、温度300℃及び荷重1.20kgf、または温度300℃及び荷重2.16kgfで測定した。
シンジオタクチックポリスチレン樹脂の融点(Tm)は、パーキン-エルマー社製示差走査熱量計を用いて、ペレット試料を、窒素雰囲気下、30℃から300℃まで昇温速度20℃/分で昇温して、融解ピーク温度(Tm)を測定した。
日本工業規格のJIS K 7125に規定されている「プラスチック-フィルム及びシート-摩擦係数試験方法」に準拠し、フィルム対フィルムの静摩擦係数及び動摩擦係数を測定した。
測定環境:温度23℃、相対湿度50%
テーブル速度:100mm/min±10mm/min
測定数:3(n=3)
Fs=静摩擦力(g)
Fp=滑り片の質量によって生じる法線力(192g)
FD:動摩擦力(g)
Fp=滑り片の質量によって生じる法線力(192g)
日本工業規格のJIS B 0601-1982の規定に従って、触針式表面粗さ測定法により、二軸延伸フィルムの中心線平均粗さ(center-line-average roughness)Raと最大高さ(maximum height of irregularities)Rmaxを測定した。
測定速度:
0.3mm/sec(カットオフ0.25mm)
0.03mm/sec(カットオフ0.08mm)
測長:2.4mm
エポキシ樹脂を含浸したプリプレグ〔住友ベークライト社製エポキシ多層プリント配線板用プリプレグFR-4(品番:EI-6765)〕の両面を二軸延伸フィルムで挟み込み、プレス機を用いて、125℃で30分間保持してエポキシ樹脂を半硬化させた後、温度175℃及び圧力2.2MPaの条件で45分間熱プレスして、プリプレグを硬化させた。硬化プリプレグから二軸延伸フィルムを手で剥がし、その際、該二軸延伸フィルムの剥離性を以下の基準で評価した。
B:二軸延伸フィルムを剥がすことができるが、剥がし方によっては、二軸延伸フィルムが破れたり裂けたりすることがあり、作業性がやや劣る;
C:二軸延伸フィルムの密着力が強く、容易に剥がすことができない。
直鎖状ポリフェニレンスルフィド粉末(溶融粘度160Pa・s)を押出機に供給して、ストランドの形状に溶融押出し、該ストランドを冷却水槽に浸漬して固化した後、ストランド用ペレタイザーでカットしてペレット(以下、「PPSペレット」という)を調製した。
該SPSペレット(a)の割合を、0.5質量部から2.0質量部に変更したこと以外は、実施例1と同様にして、二軸延伸フィルムを作製した。結果を表1に示す。(表面粗さ測定時のカットオフ値=0.08mm)
シンジオタクチックポリスチレンのペレットを、出光興産株式会社製XAREC(登録商標)S104のペレット(a)から同社製XAREC(登録商標)90ZC(ラセミペンタッドタクティシティ=98%、温度300℃と荷重1.20kgfで測定したMFR=9g/10分、Tm=272℃)のペレット(以下、「SPSペレット(b)」という)に変更すると共に、その割合を0.5質量部から10.0質量部に変更したこと以外は、実施例1と同様にして、二軸延伸フィルムを作製した。結果を表1に示す。(表面粗さ測定時のカットオフ値=0.25mm)
該SPSペレット(b)の割合を、10.0質量部から20.0質量部に変更したこと以外は、実施例3と同様にして、二軸延伸フィルムを作製した。結果を表1に示す。(表面粗さ測定時のカットオフ値=0.25mm)
実施例1で用いたのと同じPPSペレットを単独で用いたこと以外は、実施例1と同様にして、二軸延伸フィルムを作製した。結果を表1に示す。(表面粗さ測定時のカットオフ値=0.08mm)
直鎖状ポリフェニレンスルフィド粉末(溶融粘度160Pa・s)100質量部に対して、炭酸カルシウム〔日東粉化工業株式会社製「NITOREX(登録商標)#30PS」;平均粒径=0.7μm〕0.3質量部、及びステアリン酸カルシウム〔日東化成工業(株)製「Ca-St」;滑剤〕0.2質量部を添加し、ブレンダーで混合した後、実施例1と同様にしてペレット化した。この炭酸カルシウム含有PPSペレットを単独で用いたこと以外は、実施例1と同様にして二軸延伸フィルムを作製した。結果を表1に示す。(表面粗さ測定時のカットオフ値=0.08mm)
実施例1で用いたのと同じPPSペレット100質量部に対して、ポリエチレンテレフタレート〔三井化学株式会社製「三井PET J125S」〕のペレットを2.0質量部の割合で添加したこと以外は、実施例1と同様にしてペレット混合物を調製し、次いで、二軸延伸フィルムを作製した。結果を表1に示す。(表面粗さ測定時のカットオフ値=0.08mm)
実施例1で用いたのと同じPPSペレット100質量部に対して、高密度ポリエチレン〔三井化学株式会社製「ハイゼックス(登録商標)5000SF」〕のペレットを2.0質量部の割合で添加したこと以外は、実施例1と同様にしてペレット混合物を調製し、次いで、二軸延伸フィルムを作製した。結果を表1に示す。(表面粗さ測定時のカットオフ値=0.25mm)
実施例1で用いたのと同じPPSペレット100質量部に対して、前記SPSペレット(a)を5重量部の割合で添加し、ブレンダーを用いて混合して、ペレット混合物を調製した。このペレット混合物を、直径35mmφの押出機に投入し、樹脂温度305℃にてストランド状に溶融押出し、冷水中でカットしてペレットを作製した。このペレットを直径35mmの押出機内に投入して、310℃で溶融混練し、該押出機の先端に取付けたTダイ(ダイ幅=300mm、リップクリアランス=0.6mm)からシート状に溶融押出した。Tダイからのシート状の溶融物を、表面温度を40℃に保持した金属製キャスティングドラム上にキャストして急冷し、厚み約400μmの未延伸シートを作製した。
(2)SPS(a):シンジオタクチックポリスチレン〔出光興産株式会社製「XAREC(登録商標)S104」〕
(3)SPS(b):シンジオタクチックポリスチレン〔出光興産株式会社製「XAREC(登録商標)90ZC」〕
(4)CaCO3:炭酸カルシウム〔日東粉化工業株式会社製「NITOREX(登録商標)#30PS」;平均粒径=0.7μm〕
(5)Ca-St:ステアリン酸カルシウム〔日東化成工業(株)製「Ca-St」;滑剤〕
(6)PET:ポリエチレンテレフタレート〔三井化学株式会社製「三井PET J125S」〕
(7)HDPE:高密度ポリエチレン〔三井化学株式会社製「ハイゼックス(登録商標)5000SF」〕
表1の結果から明らかなように、PPS樹脂の二軸延伸フィルム(比較例1)は、中心線平均粗さRa及び最大高さRmaxの両方が小さく、平坦性に優れているが、その反面、静摩擦係数及び動摩擦係数が大きく、フィルム同士の滑り性が悪い。このため、比較例1の二軸延伸フィルムは、巻き取りが困難であった。さらに、比較例1の二軸延伸フィルムは、剥離性が悪いものであった。
Claims (15)
- ポリアリーレンスルフィド樹脂100質量部に対し、シンジオタクチックポリスチレン樹脂を0.1~30質量部の割合で含有する樹脂組成物から形成された二軸延伸ポリアリーレンスルフィド樹脂フィルムであって、
(a)日本工業規格のJIS B 0601-1982の規定に従って測定した中心線平均粗さRaが0.01~0.09μmの範囲内で、かつ、最大高さRmaxが1.0μm以下であり、並びに、
(b)日本工業規格のJIS K 7125の規定に従って測定した静摩擦係数が1.00以下で、かつ、動摩擦係数が0.70以下である
ことを特徴とする二軸延伸ポリアリーレンスルフィド樹脂フィルム。 - 該ポリアリーレンスルフィド樹脂が、温度310℃及び剪断速度1,200/secで測定したとき、20~2,000Pa・sの範囲内の溶融粘度を有するポリフェニレンスルフィド樹脂である請求項1記載のフィルム。
- 該シンジオタクチックポリスチレン樹脂が、核磁気共鳴法により定量したとき、50%以上のラセミペンタッドタクティシティを示すものである請求項1記載のフィルム。
- 該シンジオタクチックポリスチレン樹脂が、ゲルパーミエーションクロマトグラフィにより測定したとき、10,000~1,000,000の範囲内の重量平均分子量を有し、かつ、温度300℃及び荷重1.20kgfで測定したとき、3~50g/10分の範囲内のメルトフローレイトを有するものである請求項1記載のフィルム。
- 該シンジオタクチックポリスチレン樹脂が、示差走査熱量計を用いて測定したとき、250~310℃の範囲内の融点を有するものである請求項1記載のフィルム。
- 中心線平均粗さRaが0.01~0.07μmの範囲内で、かつ、最大高さRmaxが0.0~1.0μmの範囲内である請求項1記載のフィルム。
- 静摩擦係数が0.33~1.00の範囲内で、かつ、動摩擦係数が0.35~0.70の範囲内である請求項1記載のフィルム。
- 縦方向の延伸倍率が2.0~5.0倍の範囲内で、かつ、横方向の延伸倍率が2.0~5.0倍の範囲内の逐次二軸延伸フィルムである請求項1記載のフィルム。
- 下記工程1乃至5:
(1)ポリアリーレンスルフィド樹脂ペレットとシンジオタクチックポリスチレン樹脂ペレットとを、ポリアリーレンスルフィド樹脂100質量部に対するシンジオタクチックポリスチレン樹脂の割合が0.1~30質量部となるように混合して混合物を作製する工程1;
(2)該混合物を押出機に供給して、280~340℃の範囲内の温度で溶融混練し、該押出機の先端に取付けたTダイからシート状に溶融押出し、次いで、シート状の溶融物を、表面温度を20~60℃の範囲内に保持したキャスティングドラムと接触させて急冷し、未延伸シートを形成する工程2;
(3)該未延伸シートを、表面温度を各々80~95℃の範囲内に調節した予熱ロール、低速ロール、及び高速ロールからなるロール群と接触させて加熱するとともに、縦方向に2.0~5.0倍の範囲内の延伸倍率となるようにロール間での一軸延伸を行う工程3;
(4)縦方向に一軸延伸したフィルムをテンター延伸機に導入し、80~95℃の範囲内の雰囲気温度で加熱するとともに、末広がりのテンターにより、横方向に2.0~5.0倍の範囲内の延伸倍率で延伸する工程4;並びに、
(5)該工程4で得られた二軸延伸フィルムを、テンター延伸機のクリップ間の距離を縮めることにより、横方向に0.5~7%の範囲内の弛緩率で弛緩し、その状態で260℃超過295℃以下の範囲内の雰囲気中に35~120秒間保持して熱固定を行う工程5;
を含むことを特徴とする二軸延伸ポリアリーレンスルフィド樹脂フィルムの製造方法。 - 前記工程1乃至5により、
(a)日本工業規格のJIS B 0601-1982の規定に従って測定した中心線平均粗さRaが0.01~0.09μmの範囲内で、かつ、最大高さRmaxが1.0μm以下であり、並びに、
(b)日本工業規格のJIS K 7125の規定に従って測定した静摩擦係数が1.00以下で、かつ、動摩擦係数が0.70以下である
二軸延伸ポリアリーレンスルフィド樹脂フィルムを製造する請求項9記載の製造方法。 - 前記工程1において、ポリアリーレンスルフィド樹脂ペレットとシンジオタクチックポリスチレン樹脂ペレットとを、ポリアリーレンスルフィド樹脂100質量部に対するシンジオタクチックポリスチレン樹脂の割合が0.1~30質量部となるように混合して、ペレット混合物を作製する請求項9記載の製造方法。
- 前記工程2において、前記工程1で作製した該混合物を押出機に供給して、300℃超過320℃以下の範囲内の温度で溶融混練し、該押出機の先端に取付けたTダイからシート状に溶融押出し、次いで、シート状の溶融物を、表面温度を30~50℃の範囲内に保持したキャスティングドラムと接触させて急冷し、厚みが50~1,000μmの範囲内の未延伸シートを形成する請求項9記載の製造方法。
- 前記工程3において、前記工程2で形成した該未延伸シートを、表面温度を80~90℃の範囲内に調節した予熱ロールと接触させた後、表面温度を85℃超過95℃以下の範囲内に調節した低速ロール及び高速ロールからなるロール群と接触させて加熱するとともに、縦方向に2.5~4.5倍の範囲内の延伸倍率となるようにロール間での一軸延伸を行う請求項9記載の製造方法。
- 前記工程4において、前記工程3で縦方向に一軸延伸したフィルムをテンター延伸機に導入し、80~95℃の範囲内の雰囲気温度で加熱するとともに、末広がりのテンターにより、横方向に2.5~4.5倍の範囲内の延伸倍率で延伸する請求項9記載の製造方法。
- 前記工程5において、前記工程4で形成した二軸延伸フィルムを、テンター延伸機のクリップ間の距離を縮めることにより、横方向に1~6%の範囲内の弛緩率で弛緩し、その状態で265~290℃の範囲内の雰囲気中に50~100秒間保持して熱固定を行う請求項9記載の製造方法。
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CN109957125A (zh) * | 2019-04-04 | 2019-07-02 | 德阳科吉高新材料有限责任公司 | 一种聚苯硫醚薄膜的制造方法 |
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CN103754467A (zh) * | 2013-11-30 | 2014-04-30 | 南通宝田包装科技有限公司 | 一种制造反复使用的熟食包装袋的方法 |
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