WO2022181222A1 - 共重合体、成形体、射出成形体および被覆電線 - Google Patents
共重合体、成形体、射出成形体および被覆電線 Download PDFInfo
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- WO2022181222A1 WO2022181222A1 PCT/JP2022/003636 JP2022003636W WO2022181222A1 WO 2022181222 A1 WO2022181222 A1 WO 2022181222A1 JP 2022003636 W JP2022003636 W JP 2022003636W WO 2022181222 A1 WO2022181222 A1 WO 2022181222A1
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- 229910013870 LiPF 6 Inorganic materials 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 239000004902 Softening Agent Substances 0.000 description 1
- 101100038645 Streptomyces griseus rppA gene Proteins 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 238000002679 ablation Methods 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 150000001409 amidines Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 238000012662 bulk polymerization Methods 0.000 description 1
- NSGQRLUGQNBHLD-UHFFFAOYSA-N butan-2-yl butan-2-yloxycarbonyloxy carbonate Chemical compound CCC(C)OC(=O)OOC(=O)OC(C)CC NSGQRLUGQNBHLD-UHFFFAOYSA-N 0.000 description 1
- FJDQFPXHSGXQBY-UHFFFAOYSA-L caesium carbonate Chemical compound [Cs+].[Cs+].[O-]C([O-])=O FJDQFPXHSGXQBY-UHFFFAOYSA-L 0.000 description 1
- 229910000024 caesium carbonate Inorganic materials 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 1
- 229910001634 calcium fluoride Inorganic materials 0.000 description 1
- 239000001506 calcium phosphate Substances 0.000 description 1
- 229910000389 calcium phosphate Inorganic materials 0.000 description 1
- 235000011010 calcium phosphates Nutrition 0.000 description 1
- AAEHPKIXIIACPQ-UHFFFAOYSA-L calcium;terephthalate Chemical compound [Ca+2].[O-]C(=O)C1=CC=C(C([O-])=O)C=C1 AAEHPKIXIIACPQ-UHFFFAOYSA-L 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 229910021393 carbon nanotube Inorganic materials 0.000 description 1
- 239000002041 carbon nanotube Substances 0.000 description 1
- MMCOUVMKNAHQOY-UHFFFAOYSA-N carbonoperoxoic acid Chemical compound OOC(O)=O MMCOUVMKNAHQOY-UHFFFAOYSA-N 0.000 description 1
- 125000006297 carbonyl amino group Chemical group [H]N([*:2])C([*:1])=O 0.000 description 1
- 239000004203 carnauba wax Substances 0.000 description 1
- 235000013869 carnauba wax Nutrition 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003093 cationic surfactant Substances 0.000 description 1
- 239000002666 chemical blowing agent Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- KYKAJFCTULSVSH-UHFFFAOYSA-N chloro(fluoro)methane Chemical compound F[C]Cl KYKAJFCTULSVSH-UHFFFAOYSA-N 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 description 1
- AFABGHUZZDYHJO-UHFFFAOYSA-N dimethyl butane Natural products CCCC(C)C AFABGHUZZDYHJO-UHFFFAOYSA-N 0.000 description 1
- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 0.000 description 1
- 238000007580 dry-mixing Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 description 1
- 229920001038 ethylene copolymer Polymers 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 235000012438 extruded product Nutrition 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- XUCNUKMRBVNAPB-UHFFFAOYSA-N fluoroethene Chemical group FC=C XUCNUKMRBVNAPB-UHFFFAOYSA-N 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000005003 food packaging material Substances 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 238000010528 free radical solution polymerization reaction Methods 0.000 description 1
- 239000003254 gasoline additive Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-M hexanoate Chemical compound CCCCCC([O-])=O FUZZWVXGSFPDMH-UHFFFAOYSA-M 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 150000005828 hydrofluoroalkanes Chemical class 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- PEYVWSJAZONVQK-UHFFFAOYSA-N hydroperoxy(oxo)borane Chemical compound OOB=O PEYVWSJAZONVQK-UHFFFAOYSA-N 0.000 description 1
- 238000012844 infrared spectroscopy analysis Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000004611 light stabiliser Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 229940050176 methyl chloride Drugs 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 229920006120 non-fluorinated polymer Polymers 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- 150000004978 peroxycarbonates Chemical class 0.000 description 1
- 150000004968 peroxymonosulfuric acids Chemical class 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000009372 pisciculture Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 159000000001 potassium salts Chemical class 0.000 description 1
- BWJUFXUULUEGMA-UHFFFAOYSA-N propan-2-yl propan-2-yloxycarbonyloxy carbonate Chemical compound CC(C)OC(=O)OOC(=O)OC(C)C BWJUFXUULUEGMA-UHFFFAOYSA-N 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000001175 rotational moulding Methods 0.000 description 1
- 239000005336 safety glass Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical class [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- OPQYOFWUFGEMRZ-UHFFFAOYSA-N tert-butyl 2,2-dimethylpropaneperoxoate Chemical compound CC(C)(C)OOC(=O)C(C)(C)C OPQYOFWUFGEMRZ-UHFFFAOYSA-N 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- CIHOLLKRGTVIJN-UHFFFAOYSA-N tert‐butyl hydroperoxide Chemical compound CC(C)(C)OO CIHOLLKRGTVIJN-UHFFFAOYSA-N 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 1
- 229910021642 ultra pure water Inorganic materials 0.000 description 1
- 239000012498 ultrapure water Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F214/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
- C08F214/18—Monomers containing fluorine
- C08F214/26—Tetrafluoroethene
- C08F214/262—Tetrafluoroethene with fluorinated vinyl ethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D127/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers
- C09D127/02—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D127/12—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C09D127/18—Homopolymers or copolymers of tetrafluoroethene
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
- C09K3/1006—Materials in mouldable or extrudable form for sealing or packing joints or covers characterised by the chemical nature of one of its constituents
- C09K3/1009—Fluorinated polymers, e.g. PTFE
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/102—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
Definitions
- the present disclosure relates to copolymers, molded articles, injection molded articles and coated wires.
- Patent Document 1 discloses a molding material for ozone-resistant articles comprising a copolymer (A) and having a melt flow rate of 0.1 to 50 g/10 minutes, wherein the copolymer (A) is tetra A copolymer composed of fluoroethylene and perfluorovinyl ether, containing 3.5% by mass or more of perfluorovinyl ether units, having a melting point of 295° C. or higher, and having an unstable terminal group in the copolymer (A).
- a molding material for ozone-resistant articles is described which is characterized by having 50 or less carbon atoms per 1 ⁇ 10 6 carbon atoms.
- the mold used for molding and the cord to be coated are less likely to corrode, and the extrusion molding method can be used on a cord with a very large diameter.
- a very thick coating layer can be formed with a uniform thickness, the haze value is very small, the wear resistance is very excellent, the mechanical strength at 100 ° C, the low carbon dioxide permeability, the low chemical liquid permeability, A molded body that has excellent rigidity and non-adhesiveness at a high temperature of 110 ° C, is not easily damaged or deteriorated even when a tensile load is repeatedly applied, has sufficiently low water vapor permeability, and does not easily dissolve fluorine ions into the electrolyte.
- the object is to provide a copolymer obtainable.
- the present disclosure contains tetrafluoroethylene units and perfluoro(propyl vinyl ether) units, and the content of perfluoro(propyl vinyl ether) units is 2.26 to 2.75 with respect to the total monomer units. %, a melt flow rate at 372° C. of 4.0 to 11.0 g/10 min, and a functional group number of 50 or less per 10 6 main chain carbon atoms. be.
- the copolymer of the present disclosure preferably has a melt flow rate at 372°C of 5.0 to 10.0 g/10 minutes.
- an injection molded article containing the above copolymer is provided.
- a coated wire that includes a coating layer containing the above copolymer.
- a molded article containing the above copolymer wherein the molded article is a filter housing, film, bottle, wire coating or tube.
- the mold used for molding and the core wire to be coated are less likely to corrode, and the core with a very large diameter can be obtained by extrusion molding.
- a very thick coating layer can be formed on the wire with a uniform thickness, the haze value is very small, the wear resistance is very excellent, the mechanical strength at 100 ° C, low carbon dioxide permeability, low chemical liquid permeability In addition to excellent durability, rigidity at a high temperature of 110°C, and non-adhesiveness, it is resistant to damage or deterioration even when tensile loads are repeatedly applied, and has sufficiently low water vapor permeability, making it difficult for fluorine ions to dissolve into the electrolyte. It is possible to provide a copolymer from which a solid can be obtained.
- the copolymer of the present disclosure contains tetrafluoroethylene (TFE) units and perfluoro(propyl vinyl ether) (PPVE) units.
- a copolymer (PFA) containing TFE units and PPVE units is used as a material for forming filter housings used for filtering fluids such as chemical solutions.
- the pressure of the fluid passing through the filter housing frequently fluctuates when the fluid supply is started, when the fluid supply is stopped, when the fluid supply pressure is changed, and the like.
- a material that is excellent in durability against repeated stress and mechanical strength at high temperatures is required as a material for the filter housing.
- it has sufficiently low water vapor permeability so that the chemical liquid flowing through the filter housing is not contaminated with moisture or fluoride ions. It is also necessary to use materials whose elution is suppressed.
- Patent Document 1 discloses a molding material for ozone-resistant articles having the above-described features, which maintains the chemical resistance, heat resistance and mechanical properties of the fluororesin without impairing the physical properties and moldability of the fluororesin. It is described that it is a molding material having excellent ozone resistance. However, it has sufficient mechanical strength at high temperatures, sufficiently low permeability to water vapor, and sufficiently low permeability to chemical solutions, so that fluorine ions are less likely to be eluted, and the haze is lower than that of the molding material described in Patent Document 1. There is a need for a copolymer that has a small value and that can give a molded article that is resistant to damage even when a tensile load is repeatedly applied.
- the filter housing in order to manufacture the filter housing with high productivity, it is preferable to mold the material using an injection molding method.
- the material Even if the material itself has excellent transparency, the resulting injection-molded article may appear cloudy or may have a rough surface, resulting in a filter housing with excellent transparency. I have a problem that I can't Therefore, as a material for forming the filter housing, a material that not only has a small haze value but also has excellent moldability and that does not lose its excellent transparency even after injection molding is required.
- the moldability of the copolymer is significantly improved, and at the same time, it is used for molding. It was found that the mold is less likely to corrode. Furthermore, by using such a copolymer, the haze value is very small, the abrasion resistance is very excellent, the mechanical strength at 100 ° C., the low carbon dioxide permeability, the low chemical liquid permeability, the 110 ° C.
- the copolymer of the present disclosure can form a very thick coating layer with a uniform thickness on a core wire with a very large diameter by extrusion molding. Furthermore, the resulting coating layer is less likely to corrode the core wire.
- the copolymer of the present disclosure can be used not only as a material for filter housings, but also for a wide range of applications such as wire coating.
- the copolymer of the present disclosure is a melt-processable fluororesin.
- Melt processability means that the polymer can be melt processed using conventional processing equipment such as extruders and injection molding machines.
- the content of PPVE units in the copolymer is 2.26 to 2.75 mol%, preferably 2.28 mol% or more, more preferably 2.30 mol, based on the total monomer units. % or more, more preferably 2.32 mol% or more, particularly preferably 2.34 mol% or more, most preferably 2.38 mol% or more, and preferably 2.71 mol% or less. more preferably 2.68 mol % or less, still more preferably 2.65 mol % or less, particularly preferably 2.62 mol % or less, and most preferably 2.59 mol % or less.
- the haze value is very small, the abrasion resistance is very excellent, the mechanical strength at 100 ° C., the low carbon dioxide permeability, and the low chemical liquid permeability. It is possible to obtain a molded article which is excellent in toughness, rigidity at a high temperature of 110° C. and non-adhesiveness, is not easily damaged or deteriorated even when a tensile load is repeatedly applied, and has sufficiently low water vapor permeability. If the content of PPVE units in the copolymer is too low, the haze value will increase and the abrasion resistance will be poor.
- a molded article having a sufficiently low permeability to water vapor cannot be obtained, a molded article having a sufficiently low permeability to carbon dioxide cannot be obtained, or a sufficient 110 A molded article having rigidity at a high temperature of °C cannot be obtained, or a molded article having excellent durability against repeated tensile loads cannot be obtained.
- the content of TFE units in the copolymer is preferably 97.25 to 97.74 mol%, more preferably 97.29 mol% or more, and still more preferably 97.74 mol%, based on the total monomer units. 0.32 mol % or more, more preferably 97.35 mol % or more, particularly preferably 97.38 mol % or more, most preferably 97.41 mol % or more, more preferably 97.72 mol % or more mol % or less, more preferably 97.70 mol % or less, even more preferably 97.68 mol % or less, particularly preferably 97.66 mol % or less, most preferably 97.62 mol % % or less.
- the haze value may increase. If the content of the TFE units in the copolymer is too low, there is a possibility that a molded article having a sufficiently low water vapor permeability cannot be obtained.
- the content of each monomer unit in the copolymer is measured by 19 F-NMR method.
- the copolymer can also contain monomeric units derived from monomers copolymerizable with TFE and PPVE.
- the content of monomer units copolymerizable with TFE and PPVE is preferably 0 to 0.45 mol %, more preferably 0.45 mol %, based on the total monomer units of the copolymer. 01 to 0.30 mol %, more preferably 0.05 to 0.20 mol %.
- the copolymer is preferably at least one selected from the group consisting of copolymers consisting only of TFE units and PPVE units, and TFE/HFP/PPVE copolymers, and copolymers consisting only of TFE units and PPVE units. Polymers are more preferred.
- the melt flow rate (MFR) of the copolymer is 4.0-11.0 g/10 minutes.
- MFR of the copolymer is preferably 4.1 g/10 min or more, more preferably 4.2 g/10 min or more, still more preferably 4.3 g/10 min or more, still more preferably 4 5 g/10 min or more, particularly preferably 5.0 g/10 min or more, particularly preferably 6.0 g/10 min or more, most preferably 7.0 g/10 min or more, preferably is 10.9 g/10 min or less, more preferably 10.5 g/10 min or less, still more preferably 10.4 g/10 min or less, still more preferably 10.0 g/10 min or less , particularly preferably 9.5 g/10 min or less, most preferably 9.0 g/10 min or less.
- the MFR of the copolymer is within the above range, the moldability of the copolymer is improved, the haze value is small, the tensile load is not easily damaged even when a tensile load is repeatedly applied, and the abrasion resistance and the abrasion resistance at 100 ° C. It is possible to obtain a molded article having excellent mechanical strength, low carbon dioxide permeability, low chemical permeability, high rigidity at 110° C., and sufficiently low water vapor permeability.
- MFR is the mass of polymer that flows out per 10 minutes from a nozzle with an inner diameter of 2.1 mm and a length of 8 mm under a load of 5 kg at 372 ° C using a melt indexer according to ASTM D1238 (g / 10 minutes ) is the value obtained as
- the MFR can be adjusted by adjusting the type and amount of the polymerization initiator and the type and amount of the chain transfer agent used when polymerizing the monomers.
- the number of functional groups per 10 6 carbon atoms in the main chain of the copolymer is 50 or less.
- the number of functional groups per 10 6 carbon atoms in the main chain of the copolymer is preferably 40 or less, more preferably 30 or less, still more preferably 20 or less, and even more preferably 15 or less. , particularly preferably 10 or less, and most preferably less than 6. Since the number of functional groups of the copolymer is within the above range, even if the copolymer is molded by filling it in a mold, the mold is less likely to corrode, and even when used as an electric wire coating, the core wire is difficult to corrode.
- a molded article which is excellent in non-adhesiveness, low permeability to carbon dioxide and low permeability to chemical solutions, and which hardly allows fluorine ions to be eluted into the electrolytic solution.
- MFR melt flow rate
- various chemicals such as dimethyl carbonate and ethyl acetate , a molded article exhibiting excellent low permeability can be obtained.
- Infrared spectroscopic analysis can be used to identify the types of functional groups and measure the number of functional groups.
- the number of functional groups is measured by the following method.
- the above copolymer is cold-pressed to form a film having a thickness of 0.25 to 0.30 mm.
- the film is analyzed by Fourier Transform Infrared Spectroscopy to obtain the infrared absorption spectrum of the copolymer and the difference spectrum from the fully fluorinated base spectrum with no functional groups present. From the absorption peak of the specific functional group appearing in this difference spectrum, the number N of functional groups per 1 ⁇ 10 6 carbon atoms in the copolymer is calculated according to the following formula (A).
- N I ⁇ K/t (A) I: Absorbance K: Correction coefficient t: Film thickness (mm)
- Table 1 shows absorption frequencies, molar extinction coefficients and correction factors for some functional groups. Also, the molar extinction coefficient was determined from the FT-IR measurement data of the low-molecular-weight model compound.
- the absorption frequencies of —CH 2 CF 2 H, —CH 2 COF, —CH 2 COOH, —CH 2 COOCH 3 and —CH 2 CONH 2 are shown in the table, respectively, —CF 2 H, —COF and —COOH free.
- the absorption frequency of -COOH bonded, -COOCH 3 and -CONH 2 is several tens of Kaiser (cm -1 ) lower than that of -CONH 2 .
- the number of functional groups of —COF is determined from the number of functional groups obtained from the absorption peak at an absorption frequency of 1883 cm ⁇ 1 due to —CF 2 COF and from the absorption peak at an absorption frequency of 1840 cm ⁇ 1 due to —CH 2 COF. It is the sum of the number of functional groups.
- the functional group is a functional group present at the main chain end or side chain end of the copolymer, and a functional group present in the main chain or side chain.
- the functional group is introduced into the copolymer, for example, by a chain transfer agent or a polymerization initiator used in producing the copolymer.
- a chain transfer agent or a polymerization initiator used in producing the copolymer.
- —CH 2 OH is introduced at the main chain end of the copolymer.
- the functional group is introduced into the side chain end of the copolymer.
- the copolymer of the present disclosure is preferably fluorinated. It is also preferred that the copolymers of the present disclosure have —CF 3 end groups.
- the melting point of the copolymer is preferably 285 to 310°C, more preferably 290°C or higher, still more preferably 294°C or higher, particularly preferably 296°C or higher, and most preferably 298°C or higher. and more preferably 305° C. or less.
- the melting point can be measured using a differential scanning calorimeter [DSC].
- the copolymer of the present disclosure preferably has a haze value of 7.5% or less.
- the haze value is within the above range, for example, when a molded article such as a pipe, joint, bottle, or flow meter is obtained using the copolymer of the present disclosure, the inside of the molded article can be visually observed or observed with a camera. It becomes very easy to confirm the flow rate and remaining amount of the contents.
- the haze value can be reduced by adjusting the PPVE unit content and melt flow rate (MFR) of the copolymer.
- MFR melt flow rate
- the haze value can be measured according to JIS K 7136.
- the copolymer of the present disclosure preferably has a tensile strength at 100°C of 20.0 MPa or higher, more preferably 20.5 MPa or higher, and still more preferably 22.0 MPa or higher.
- the tensile strength at 100°C can be increased by adjusting the PPVE unit content and melt flow rate (MFR) of the copolymer.
- MFR melt flow rate
- tensile strength at 100°C can be measured according to ASTM D638.
- the water vapor permeability of the copolymer is preferably 18.0 g ⁇ cm/m 2 or less, more preferably 17.5 g ⁇ cm/m 2 or less, still more preferably 17.0 g ⁇ cm/m 2 or less. is.
- the copolymer of the present disclosure has sufficiently low water vapor permeability because the PPVE unit content, melt flow rate (MFR), and functional group number of the copolymer containing TFE units and PPVE units are appropriately adjusted. have a sexuality. Therefore, for example, a molded article such as a filter housing obtained using the copolymer of the present disclosure can be suitably used for transporting chemical liquids that should not be mixed with moisture such as water vapor in the outside air.
- the water vapor permeability can be measured under conditions of a temperature of 95°C and 30 days. Specific measurement of water vapor transmission rate can be performed by the method described in Examples.
- the carbon dioxide permeability coefficient of the copolymer is preferably 2000 cm 3 ⁇ mm/(m 2 ⁇ 24h ⁇ atm) or less.
- the copolymers of the present disclosure exhibit excellent carbon dioxide reduction because the PPVE unit content, melt flow rate (MFR), and functional group number of the copolymer containing TFE units and PPVE units are appropriately adjusted. It has transparency. Therefore, by using the copolymer of the present disclosure, it is possible to obtain a molded product such as a bottle that can reliably suppress the permeation of carbon dioxide from the outside and maintain the quality of the chemical solution contained therein for a long period of time. can.
- the carbon dioxide permeability coefficient can be measured under the conditions of a test temperature of 70°C and a test humidity of 0% RH.
- a specific measurement of the carbon dioxide permeability coefficient can be performed by the method described in Examples.
- the electrolyte permeability of the copolymer is preferably 8.5 g ⁇ cm/m 2 or less, more preferably 8.2 g ⁇ cm/m 2 or less.
- the copolymers of the present disclosure are excellent electrolyte-lowering because the PPVE unit content, melt flow rate (MFR), and functional group number of the copolymers containing TFE units and PPVE units are appropriately adjusted. It has transparency. That is, by using the copolymer of the present disclosure, it is possible to obtain a molded article that is less permeable to chemicals such as electrolytic solutions.
- the electrolyte permeability can be measured under conditions of a temperature of 60°C and 30 days. Specific measurement of electrolyte permeability can be performed by the method described in Examples.
- the ethyl acetate permeability of the copolymer is preferably 6.9 g ⁇ cm/m 2 or less, more preferably 6.6 g ⁇ cm/m 2 or less.
- the copolymer of the present disclosure has excellent ethyl acetate low It has transparency. That is, by using the copolymer of the present disclosure, it is possible to obtain a molded article that is less permeable to chemicals such as ethyl acetate.
- the ethyl acetate permeability can be measured under conditions of a temperature of 60°C and 45 days. Specific measurement of ethyl acetate permeability can be performed by the method described in Examples.
- the amount of eluted fluorine ions detected in the electrolytic solution immersion test is preferably 1.0 ppm or less, more preferably 0.8 ppm or less, and still more preferably 0.8 ppm or less on a mass basis. 7 ppm or less.
- the amount of eluted fluorine ions is within the above range, it is possible to further suppress the generation of gases such as HF in the non-aqueous electrolyte battery, and to further suppress deterioration of the battery performance and shortening of the life of the non-aqueous electrolyte battery. can.
- the electrolytic solution immersion test uses a copolymer to prepare a test piece having a weight equivalent to 10 molded articles (15 mm ⁇ 15 mm ⁇ 0.2 mm), and the test piece and 2 g of dimethyl carbonate ( DMC) is placed in a constant temperature bath at 80° C. and allowed to stand for 144 hours.
- DMC dimethyl carbonate
- the copolymer of the present disclosure can be produced by polymerization methods such as suspension polymerization, solution polymerization, emulsion polymerization, and bulk polymerization. Emulsion polymerization or suspension polymerization is preferred as the polymerization method. In these polymerizations, the conditions such as temperature and pressure, the polymerization initiator and other additives can be appropriately set according to the composition and amount of the copolymer.
- an oil-soluble radical polymerization initiator or a water-soluble radical polymerization initiator can be used as the polymerization initiator.
- the oil-soluble radical polymerization initiator may be a known oil-soluble peroxide, for example Dialkyl peroxycarbonates such as di-normal propyl peroxydicarbonate, diisopropyl peroxydicarbonate, disec-butyl peroxydicarbonate, di-2-ethoxyethyl peroxydicarbonate; Peroxyesters such as t-butyl peroxyisobutyrate and t-butyl peroxypivalate; Dialkyl peroxides such as di-t-butyl peroxide; Di[fluoro (or fluorochloro) acyl] peroxides; etc. are typical examples.
- Dialkyl peroxycarbonates such as di-normal propyl peroxydicarbonate, diisopropyl peroxydicarbonate, disec-butyl peroxydicarbonate, di-2-ethoxyethyl peroxydicarbonate
- Peroxyesters such as t-butyl peroxy
- Di[fluoro(or fluorochloro)acyl] peroxides include diacyl represented by [(RfCOO)-] 2 (Rf is a perfluoroalkyl group, ⁇ -hydroperfluoroalkyl group or fluorochloroalkyl group) peroxides.
- Di[fluoro(or fluorochloro)acyl] peroxides include, for example, di( ⁇ -hydro-dodecafluorohexanoyl) peroxide, di( ⁇ -hydro-tetradecafluoroheptanoyl) peroxide, di( ⁇ -hydro-hexadecafluorononanoyl)peroxide, di(perfluoropropionyl)peroxide, di(perfluorobutyryl)peroxide, di(perfluoropareryl)peroxide, di(perfluorohexanoyl)peroxide , di(perfluoroheptanoyl) peroxide, di(perfluorooctanoyl) peroxide, di(perfluorononanoyl) peroxide, di( ⁇ -chloro-hexafluorobutyryl) peroxide, di( ⁇ -chloro -decafluorohexanoyl
- the water-soluble radical polymerization initiator may be a known water-soluble peroxide, for example, persulfuric acid, perboric acid, perchloric acid, superphosphoric acid, ammonium salts such as percarbonic acid, potassium salts, sodium salts, disuccinic acid.
- Acid peroxides organic peroxides such as diglutaric acid peroxide, t-butyl permalate, t-butyl hydroperoxide and the like.
- a reducing agent such as sulfites may be used in combination with the peroxide, and the amount used may be 0.1 to 20 times the peroxide.
- a surfactant In polymerization, a surfactant, a chain transfer agent, and a solvent can be used, and conventionally known ones can be used.
- surfactant known surfactants can be used, such as nonionic surfactants, anionic surfactants and cationic surfactants.
- fluorine-containing anionic surfactants are preferable, and may contain etheric oxygen (that is, oxygen atoms may be inserted between carbon atoms), linear or branched surfactants having 4 to 20 carbon atoms
- a fluorine-containing anionic surfactant is more preferred.
- the amount of surfactant added (to polymerization water) is preferably 50 to 5000 ppm.
- chain transfer agents examples include hydrocarbons such as ethane, isopentane, n-hexane and cyclohexane; aromatics such as toluene and xylene; ketones such as acetone; ethyl acetate and butyl acetate; , alcohols such as ethanol; mercaptans such as methyl mercaptan; halogenated hydrocarbons such as carbon tetrachloride, chloroform, methylene chloride and methyl chloride.
- the amount of the chain transfer agent to be added may vary depending on the chain transfer constant of the compound used, but it is usually used in the range of 0.01 to 20% by mass relative to the polymerization solvent.
- solvents examples include water and mixed solvents of water and alcohol.
- a fluorinated solvent may be used in addition to water.
- Hydrochlorofluoroalkanes such as CH 3 CClF 2 , CH 3 CCl 2 F, CF 3 CF 2 CCl 2 H, CF 2 ClCF 2 CFHCl; CF 2 ClCFClCF 2 CF 3 , CF 3 CFClCFClCF 3 , etc.
- hydrofluoroalkanes such as CF3CFHCFHCF2CF2CF3 , CF2HCF2CF2CF2H , CF3CF2CF2CF2CF2CF2H ; CH _ _ _ _ _ _ 3OC2F5 , CH3OC3F5CF3CF2CH2OCHF2 , CF3CHFCF2OCH3 , CHF2CF2OCH2F , ( CF3 ) 2CHCF2OCH3 , CF3CF2 _ _ _ _ _ _ _ _ _ _ _ Hydrofluoroethers such as CH2OCH2CHF2 , CF3CHFCF2OCH2CF3 ; perfluorocyclobutane , CF3CF2CF2CF3 , CF3CF2CF2CF2CF3 , CF3CF2 _ _ _ _ Examples include perfluoroalkanes such as CF 2 CF 2
- the polymerization temperature is not particularly limited, and may be 0 to 100°C.
- the polymerization pressure is appropriately determined according to other polymerization conditions such as the type and amount of the solvent used, vapor pressure, polymerization temperature, etc., and may generally be from 0 to 9.8 MPaG.
- the copolymer When an aqueous dispersion containing a copolymer is obtained by a polymerization reaction, the copolymer can be recovered by coagulating, washing, and drying the copolymer contained in the aqueous dispersion. Moreover, when the copolymer is obtained as a slurry by the polymerization reaction, the copolymer can be recovered by removing the slurry from the reaction vessel, washing it, and drying it. The copolymer can be recovered in the form of powder by drying.
- the copolymer obtained by polymerization may be molded into pellets.
- a molding method for molding into pellets is not particularly limited, and conventionally known methods can be used. For example, a method of melt extruding a copolymer using a single-screw extruder, twin-screw extruder, or tandem extruder, cutting it into a predetermined length, and molding it into pellets can be used.
- the extrusion temperature for melt extrusion must be changed according to the melt viscosity of the copolymer and the production method, and is preferably from the melting point of the copolymer +20°C to the melting point of the copolymer +140°C.
- the method for cutting the copolymer is not particularly limited, and conventionally known methods such as a strand cut method, a hot cut method, an underwater cut method, and a sheet cut method can be employed.
- the obtained pellets may be heated to remove volatile matter in the pellets (deaeration treatment).
- the obtained pellets may be treated by contacting them with warm water of 30-200°C, steam of 100-200°C, or hot air of 40-200°C.
- a copolymer obtained by polymerization may be fluorinated.
- the fluorination treatment can be carried out by contacting the non-fluorinated copolymer with a fluorine-containing compound.
- the fluorine-containing compound is not particularly limited, but includes fluorine radical sources that generate fluorine radicals under fluorination treatment conditions.
- fluorine radical source include F 2 gas, CoF 3 , AgF 2 , UF 6 , OF 2 , N 2 F 2 , CF 3 OF, halogen fluoride (eg IF 5 , ClF 3 ), and the like.
- the fluorine radical source such as F 2 gas may have a concentration of 100%, but from the viewpoint of safety, it is preferable to mix it with an inert gas and dilute it to 5 to 50% by mass before use. It is more preferable to dilute to 30% by mass before use.
- the inert gas include nitrogen gas, helium gas, argon gas, etc. Nitrogen gas is preferable from an economical point of view.
- the conditions for the fluorination treatment are not particularly limited, and the copolymer in a molten state may be brought into contact with the fluorine-containing compound. Preferably, it can be carried out at a temperature of 100 to 220°C.
- the fluorination treatment is generally carried out for 1 to 30 hours, preferably 5 to 25 hours.
- the fluorination treatment is preferably carried out by contacting the unfluorinated copolymer with fluorine gas (F2 gas).
- a composition may be obtained by mixing the copolymer of the present disclosure with other components as necessary.
- Other components include fillers, plasticizers, processing aids, release agents, pigments, flame retardants, lubricants, light stabilizers, weather stabilizers, conductive agents, antistatic agents, ultraviolet absorbers, antioxidants, Foaming agents, fragrances, oils, softening agents, dehydrofluorination agents and the like can be mentioned.
- fillers include silica, kaolin, clay, organic clay, talc, mica, alumina, calcium carbonate, calcium terephthalate, titanium oxide, calcium phosphate, calcium fluoride, lithium fluoride, crosslinked polystyrene, potassium titanate, Examples include carbon, boron nitride, carbon nanotubes, glass fibers, and the like.
- the conductive agent include carbon black and the like.
- plasticizers include dioctylphthalic acid and pentaerythritol.
- processing aids include carnauba wax, sulfone compounds, low-molecular-weight polyethylene, fluorine-based aids, and the like.
- dehydrofluorination agents include organic oniums and amidines.
- Polymers other than the copolymers described above may be used as the other components.
- examples of other polymers include fluororesins, fluororubbers, and non-fluorinated polymers other than the copolymers described above.
- Examples of the method for producing the above composition include a method of dry mixing the copolymer and other components, a method of mixing the copolymer and other components in advance in a mixer, and then using a kneader, a melt extruder, or the like.
- the method of melt-kneading, etc. can be mentioned.
- the copolymer of the present disclosure or the composition described above can be used as a processing aid, molding material, etc., but is preferably used as a molding material.
- Aqueous dispersions, solutions, suspensions, and copolymer/solvent systems of the copolymers of the present disclosure are also available and can be applied as coatings, encapsulated, impregnated, and used to cast films. can However, since the copolymer of the present disclosure has the properties described above, it is preferably used as the molding material.
- a molded article may be obtained by molding the copolymer of the present disclosure or the above composition.
- the method for molding the above copolymer or composition is not particularly limited, and examples thereof include injection molding, extrusion molding, compression molding, blow molding, transfer molding, roto molding, roto lining molding, and the like. .
- extrusion molding, compression molding, injection molding, or transfer molding is preferable, and injection molding, extrusion, or transfer molding is more preferable because it can produce molded articles with high productivity.
- Preferred is the injection molding method. That is, the molded article is preferably an extrusion molded article, a compression molded article, an injection molded article or a transfer molded article. is more preferred, and an injection molded article is even more preferred.
- Molded articles containing the copolymer of the present disclosure include, for example, nuts, bolts, joints, films, bottles, gaskets, wire coatings, tubes, hoses, pipes, valves, sheets, seals, packings, tanks, rollers, and containers. , cocks, connectors, filter housings, filter cages, flow meters, pumps, wafer carriers, wafer boxes, and the like.
- the copolymer of the present disclosure, the composition described above, or the molded article described above can be used, for example, in the following applications.
- Films for food packaging, lining materials for fluid transfer lines used in food manufacturing processes, packings, sealing materials, and fluid transfer members for food manufacturing equipment such as sheets
- Drug stoppers for drugs, packaging films, lining materials for fluid transfer lines used in the process of manufacturing drugs, packings, sealing materials, and chemical solution transfer members such as sheets
- Inner lining members for chemical tanks and piping in chemical plants and semiconductor factories O (square) rings, tubes, packings, valve core materials, hoses, sealing materials, etc. used in automobile fuel systems and peripheral devices
- Fuel transfer members such as hoses, sealing materials, etc.
- Coating and ink components such as coating rolls, hoses, tubes, and ink containers for coating equipment; Tubes for food and drink or tubes such as food and drink hoses, hoses, belts, packings, food and drink transfer members such as joints, food packaging materials, glass cooking equipment; Parts for transporting waste liquid such as tubes and hoses for transporting waste liquid; Parts for transporting high-temperature liquids, such as tubes and hoses for transporting high-temperature liquids; Steam piping members such as steam piping tubes and hoses; Anti-corrosion tape for piping such as tape to be wrapped around piping on ship decks; Various coating materials such as wire coating materials, optical fiber coating materials, transparent surface coating materials and back coating materials provided on the light incident side surface of photovoltaic elements of solar cells; Sliding members such as diaphragms of diaphragm pumps and various packings; Agricultural films, weather-resistant covers for various roofing materials and side walls; Interior materials used in the construction field, coating materials for glasses such
- fuel transfer members used in the fuel system of automobiles include fuel hoses, filler hoses, and evaporation hoses.
- the above-mentioned fuel transfer member can also be used as a fuel transfer member for sour gasoline-resistant fuel, alcohol-resistant fuel, and fuel containing gasoline additives such as methyl tert-butyl ether and amine-resistant fuel.
- the above drug stoppers and packaging films for drugs have excellent chemical resistance against acids and the like.
- an anticorrosive tape to be wound around chemical plant pipes can also be mentioned.
- Examples of the above molded bodies also include automobile radiator tanks, chemical liquid tanks, bellows, spacers, rollers, gasoline tanks, containers for transporting waste liquids, containers for transporting high-temperature liquids, fisheries and fish farming tanks, and the like.
- Examples of the molded article include automobile bumpers, door trims, instrument panels, food processing equipment, cooking equipment, water- and oil-repellent glass, lighting-related equipment, display panels and housings for OA equipment, illuminated signboards, displays, and liquid crystals.
- Members used for displays, mobile phones, printed circuit boards, electrical and electronic parts, miscellaneous goods, trash cans, bathtubs, unit baths, ventilation fans, lighting frames and the like are also included.
- the molded article containing the copolymer of the present disclosure has a very small haze value, very excellent wear resistance, mechanical strength at 100 ° C., low carbon dioxide permeability, low chemical liquid permeability, and high temperature of 110 ° C. In addition to excellent rigidity and non-adhesiveness, it is resistant to damage or deterioration even when tensile loads are repeatedly applied. , joints, packings, valves, cocks, connectors, filter housings, filter cages, flow meters, pumps, and the like. Since the filter housing containing the copolymer of the present disclosure has a very small haze value, the visibility of the inside is excellent, and defoaming operation can be easily performed, for example.
- a piping member especially a joint
- a flow meter frame provided with a flow channel for a chemical solution in a flow meter.
- the piping member and the flowmeter frame of the present disclosure have a very small haze value, very excellent abrasion resistance, mechanical strength at 100 ° C., low carbon dioxide permeability, low chemical liquid permeability, and rigidity at a high temperature of 110 ° C.
- it is less likely to be damaged or deteriorated even if a tensile load is repeatedly applied, has sufficiently low water vapor permeability, and does not easily dissolve fluorine ions into the electrolyte.
- the piping member and the flowmeter frame of the present disclosure have excellent internal visibility. It can also be suitably used for measuring the flow rate of a chemical solution, and is less likely to be damaged even if stress is repeatedly applied according to the start, stop, and change in the flow rate of the chemical solution. Furthermore, the piping member and the flowmeter body of the present disclosure can be manufactured by an injection molding method without corroding the mold used for molding, and have a beautiful appearance.
- a molded article containing the copolymer of the present disclosure can be easily produced by an injection molding method without corroding the mold, has a very small haze value, has excellent abrasion resistance, and can be mechanical strength, low permeability to carbon dioxide, low permeability to chemicals, rigidity at high temperatures of 110°C, and non-adhesiveness.
- fluorine ions are less likely to be eluted into the electrolytic solution, it can be suitably used as members to be compressed such as gaskets and packings.
- the compressible member of the present disclosure may be a gasket or packing.
- the gaskets or packings of the present disclosure do not corrode molds, can be manufactured at low cost by injection molding, are less likely to be damaged when installed in locations where they are frequently opened and closed, and can be machined at 100°C. excellent mechanical strength.
- the compressed member of the present disclosure has excellent low water vapor permeability and is not easily damaged even when stress is repeatedly applied. can be used.
- the size and shape of the member to be compressed of the present disclosure may be appropriately set according to the application, and are not particularly limited.
- the shape of the compressible member of the present disclosure may be annular, for example.
- the member to be compressed of the present disclosure may have a shape such as a circle, an oval, or a rectangle with rounded corners in a plan view, and may have a through hole in the center thereof.
- the member to be compressed of the present disclosure is preferably used as a member for configuring a non-aqueous electrolyte battery.
- the member to be compressed of the present disclosure has excellent low water vapor permeability and does not easily elute fluorine ions into the electrolyte. It is particularly suitable. That is, the member to be compressed of the present disclosure may have a liquid contact surface with the non-aqueous electrolyte in the non-aqueous electrolyte battery.
- the member to be compressed of the present disclosure is less likely to elute fluorine ions into the non-aqueous electrolyte. Therefore, by using the member to be compressed of the present disclosure, it is possible to suppress an increase in the concentration of fluorine ions in the non-aqueous electrolyte. As a result, by using the member to be compressed of the present disclosure, it is possible to suppress the generation of gas such as HF in the non-aqueous electrolyte battery, and to suppress deterioration of the battery performance and shortening of the life of the non-aqueous electrolyte battery. or
- the member to be compressed of the present disclosure can further suppress the generation of gas such as HF in the non-aqueous electrolyte battery, and can further suppress deterioration of the battery performance and shortening of the life of the non-aqueous electrolyte battery.
- the amount of eluted fluorine ions detected in the electrolytic solution immersion test is preferably 1.0 ppm or less, preferably 0.8 ppm or less, and more preferably 0.7 ppm or less on a mass basis.
- a test piece having a weight equivalent to 10 molded bodies (15 mm ⁇ 15 mm ⁇ 0.2 mm) was prepared, and the test piece and 2 g of dimethyl carbonate (DMC) were added. It can be carried out by placing the glass sample bottle in a constant temperature bath at 80° C. and allowing it to stand for 144 hours.
- DMC dimethyl carbonate
- the compressed member of the present disclosure is less permeable to water vapor. Therefore, by using the member to be compressed of the present disclosure, it is possible to suppress permeation of water vapor from the outside into the secondary battery. As a result, by using the member to be compressed of the present disclosure, it is possible to suppress the deterioration of the battery performance and the shortening of the life of the non-aqueous electrolyte battery.
- the water vapor permeability of the compressed member of the present disclosure is preferably 18.0 g cm/m 2 or less, more preferably 17, because it can further suppress the deterioration of the battery performance and the shortening of the life of the non-aqueous electrolyte battery. 0.5 g ⁇ cm/m 2 or less, more preferably 17.0 g ⁇ cm/m 2 or less.
- the water vapor permeability of the member to be compressed can be measured at a temperature of 95° C. for 30 days.
- the non-aqueous electrolyte battery is not particularly limited as long as it is a battery with a non-aqueous electrolyte, and examples thereof include lithium ion secondary batteries and lithium ion capacitors. Further, examples of members constituting the non-aqueous electrolyte battery include a sealing member and an insulating member.
- the non-aqueous electrolyte is not particularly limited, but includes propylene carbonate, ethylene carbonate, butylene carbonate, ⁇ -butyl lactone, 1,2-dimethoxyethane, 1,2-diethoxyethane, dimethyl carbonate, and diethyl carbonate. , ethyl methyl carbonate and the like can be used.
- the nonaqueous electrolyte battery may further include an electrolyte.
- the electrolyte is not particularly limited, but LiClO 4 , LiAsF 6 , LiPF 6 , LiBF 4 , LiCl, LiBr, CH 3 SO 3 Li, CF 3 SO 3 Li, cesium carbonate, or the like can be used.
- the member to be compressed of the present disclosure can be suitably used as, for example, a sealing member such as a sealing gasket and sealing packing, and an insulating member such as an insulating gasket and insulating packing.
- a sealing member is a member used to prevent leakage of liquid or gas or intrusion of liquid or gas from the outside.
- An insulating member is a member used to insulate electricity.
- Compressed members of the present disclosure may be members used for both sealing and insulating purposes.
- the member to be compressed of the present disclosure does not easily dissolve fluorine ions into the electrolyte, it can be suitably used as a sealing member for a non-aqueous electrolyte battery or an insulating member for a non-aqueous electrolyte battery.
- the member to be compressed of the present disclosure contains the copolymer, it has excellent insulating properties. Therefore, when the compressible member of the present disclosure is used as an insulating member, it adheres tightly to two or more conductive members to prevent short circuits over time.
- the copolymer of the present disclosure is less likely to corrode the coated core wire. Furthermore, by molding the copolymer of the present disclosure by extrusion molding, it is possible to form a coating layer with a uniform thickness on a core wire having a very large diameter, so it is suitable as a material for forming a wire coating. can be used for Therefore, the coated electric wire provided with the coating layer containing the copolymer of the present disclosure is excellent in electrical properties because the core wire is resistant to corrosion and the outer diameter hardly varies.
- a covered electric wire includes a core wire and a coating layer provided around the core wire and containing the copolymer of the present disclosure.
- the coating layer can be an extruded product obtained by melt extruding the copolymer of the present disclosure on the core wire.
- the coated electric wire is suitable for LAN cables (Ethernet Cable), high frequency transmission cables, flat cables, heat resistant cables, etc., and particularly suitable for transmission cables such as LAN cables (Eathnet Cable) and high frequency transmission cables.
- the core wire for example, a metal conductor material such as copper or aluminum can be used.
- the core wire preferably has a diameter of 0.02 to 3 mm.
- the diameter of the cord is more preferably 0.04 mm or more, still more preferably 0.05 mm or more, and particularly preferably 0.1 mm or more.
- the diameter of the cord is more preferably 2 mm or less.
- core wires include AWG (American Wire Gauge)-46 (solid copper wire with a diameter of 40 micrometers), AWG-26 (solid copper wire with a diameter of 404 micrometers), AWG-24 (diameter 510 micrometer solid copper wire), AWG-22 (635 micrometer diameter solid copper wire), etc. may be used.
- AWG American Wire Gauge
- AWG-46 solid copper wire with a diameter of 40 micrometers
- AWG-26 solid copper wire with a diameter of 404 micrometers
- AWG-24 diameter 510 micrometer solid copper wire
- AWG-22 (635 micrometer diameter solid copper wire), etc.
- the thickness of the coating layer is preferably 0.1 to 3.0 mm. It is also preferable that the thickness of the coating layer is 2.0 mm or less.
- a coaxial cable is an example of a high-frequency transmission cable.
- a coaxial cable generally has a structure in which an inner conductor, an insulating coating layer, an outer conductor layer and a protective coating layer are laminated in order from the core to the outer periphery.
- a molded article containing the copolymer of the present disclosure can be suitably used as an insulating coating layer containing the copolymer.
- the thickness of each layer in the above structure is not particularly limited, but usually the inner conductor has a diameter of about 0.1 to 3 mm, the insulating coating layer has a thickness of about 0.3 to 3 mm, and the outer conductor layer has a thickness of about 0.5-10 mm, the protective coating layer is about 0.5-2 mm thick.
- the coating layer may contain air bubbles, and it is preferable that the air bubbles are uniformly distributed in the coating layer.
- the average bubble diameter of the bubbles is not limited, for example, it is preferably 60 ⁇ m or less, more preferably 45 ⁇ m or less, even more preferably 35 ⁇ m or less, and even more preferably 30 ⁇ m or less. It is preferably 25 ⁇ m or less, particularly preferably 23 ⁇ m or less, and most preferably 23 ⁇ m or less. Also, the average bubble diameter is preferably 0.1 ⁇ m or more, more preferably 1 ⁇ m or more. The average bubble diameter can be obtained by taking an electron microscope image of the cross section of the electric wire, calculating the diameter of each bubble by image processing, and averaging the diameters.
- the coating layer may have an expansion rate of 20% or more. It is more preferably 30% or more, still more preferably 33% or more, and even more preferably 35% or more.
- the upper limit is not particularly limited, it is, for example, 80%.
- the upper limit of the expansion rate may be 60%.
- the foaming rate is a value obtained by ((specific gravity of wire coating material ⁇ specific gravity of coating layer)/specific gravity of wire coating material) ⁇ 100. The foaming rate can be appropriately adjusted depending on the application, for example, by adjusting the amount of gas inserted into the extruder, which will be described later, or by selecting the type of gas to be dissolved.
- the covered electric wire may have another layer between the core wire and the covering layer, and may have another layer (outer layer) around the covering layer.
- the electric wire of the present disclosure has a two-layer structure (skin-foam) in which a non-foaming layer is inserted between the core wire and the covering layer, or a two-layer structure in which the outer layer is covered with a non-foaming layer. (foam-skin), or a three-layer structure (skin-foam-skin) in which the outer layer of skin-foam is covered with a non-foamed layer.
- the non-foamed layer is not particularly limited, and includes TFE/HFP copolymers, TFE/PAVE copolymers, TFE/ethylene copolymers, vinylidene fluoride polymers, polyolefin resins such as polyethylene [PE], polychlorinated It may be a resin layer made of a resin such as vinyl [PVC].
- a coated electric wire can be produced, for example, by heating a copolymer using an extruder and extruding the molten copolymer onto a core wire to form a coating layer.
- the coating layer containing air bubbles can be formed by heating the copolymer and introducing a gas into the copolymer while the copolymer is in a molten state.
- a gas such as chlorodifluoromethane, nitrogen, carbon dioxide, or a mixture of the above gases can be used.
- the gas may be introduced into the heated copolymer as a pressurized gas or may be generated by incorporating a chemical blowing agent into the copolymer. The gas dissolves in the molten copolymer.
- copolymer of the present disclosure can be suitably used as a material for high-frequency signal transmission products.
- the product for high-frequency signal transmission is not particularly limited as long as it is a product used for high-frequency signal transmission. Molded bodies such as high-frequency vacuum tube bases and antenna covers, (3) coated electric wires such as coaxial cables and LAN cables, and the like.
- the above products for high-frequency signal transmission can be suitably used in equipment that uses microwaves, particularly microwaves of 3 to 30 GHz, such as satellite communication equipment and mobile phone base stations.
- the copolymer of the present disclosure can be suitably used as an insulator because of its low dielectric loss tangent.
- a printed wiring board is preferable in terms of obtaining good electrical characteristics.
- the printed wiring board include, but are not particularly limited to, printed wiring boards for electronic circuits such as mobile phones, various computers, and communication devices.
- an antenna cover is preferable in terms of low dielectric loss.
- a beautiful sheet can be obtained by molding the copolymer of the present disclosure by an injection molding method.
- the molded article containing the copolymer of the present disclosure has a very small haze value, very excellent abrasion resistance, mechanical strength at 100 ° C., low carbon dioxide permeability, low chemical liquid permeability, 110 It has excellent rigidity and non-adhesiveness at high temperatures, is resistant to damage or deterioration even when subjected to repeated tensile loads, has sufficiently low water vapor permeability, and is resistant to elution of fluorine ions into the electrolyte. Therefore, a molded article containing the copolymer of the present disclosure can be suitably used as a film or sheet.
- the film of the present disclosure is particularly excellent in non-adhesiveness. Therefore, even when the film of the present disclosure, resin such as epoxy resin, toner, and the like are hot-pressed, the resin, toner, and the like can be peeled off from the film without adhesion between the two.
- the film of the present disclosure is useful as a release film.
- the release film can be produced by molding the copolymer of the present disclosure by melt extrusion molding, calendar molding, press molding, casting molding, or the like. From the viewpoint of obtaining a uniform thin film, the release film can be produced by melt extrusion molding.
- the film of the present disclosure can be applied to the surface of rolls used in OA equipment.
- the copolymer of the present disclosure is molded into a required shape by extrusion molding, compression molding, press molding, etc., and molded into a sheet, film, or tube, and surface materials such as OA equipment rolls or OA equipment belts. can be used for In particular, thin-walled tubes and films can be produced by melt extrusion.
- the molded article containing the copolymer of the present disclosure has a very small haze value, very excellent wear resistance, mechanical strength at 100 ° C., low carbon dioxide permeability, low chemical liquid permeability, and high temperature of 110 ° C.
- it is difficult to damage or deteriorate even when tensile loads are repeatedly applied, has sufficiently low water vapor permeability, and does not easily dissolve fluorine ions in the electrolyte. It can be suitably used as.
- a bottle or tube of the present disclosure allows for easy viewing of the contents and is less prone to damage during use.
- melt flow rate (MFR) Melt flow rate (MFR)
- G-01 melt indexer
- N I ⁇ K/t (A)
- K Correction coefficient
- t Film thickness (mm)
- Table 2 shows the absorption frequencies, molar extinction coefficients, and correction factors for the functional groups in the present disclosure. The molar extinction coefficient was determined from the FT-IR measurement data of the low-molecular-weight model compound.
- melting point Using a differential scanning calorimeter (trade name: X-DSC7000, manufactured by Hitachi High-Tech Science Co., Ltd.), the temperature was first raised from 200 ° C. to 350 ° C. at a heating rate of 10 ° C./min, followed by a cooling rate. Cool from 350°C to 200°C at 10°C/min, then heat again from 200°C to 350°C at a heating rate of 10°C/min for the second time, and peak the melting curve during the second heating process. The melting point was obtained from
- Example 1 26.6 L of pure water was put into an autoclave with a capacity of 174 L, and after sufficient nitrogen substitution, 30.4 kg of perfluorocyclobutane, 1.96 kg of perfluoro(propyl vinyl ether) (PPVE), and 0.11 kg of methanol were charged. , the temperature in the system was kept at 35° C., and the stirring speed was kept at 200 rpm. Then, after pressurizing tetrafluoroethylene (TFE) to 0.58 MPa, 0.010 kg of a 50% methanol solution of di-n-propylperoxydicarbonate was added to initiate polymerization.
- TFE tetrafluoroethylene
- the resulting powder was melt-extruded at 360°C with a screw extruder (trade name: PCM46, manufactured by Ikegai Co., Ltd.) to obtain TFE/PPVE copolymer pellets.
- a screw extruder (trade name: PCM46, manufactured by Ikegai Co., Ltd.) to obtain TFE/PPVE copolymer pellets.
- the PPVE content was measured by the method described above. Table 3 shows the results.
- the obtained pellets were placed in a vacuum vibration reactor VVD-30 (manufactured by Okawara Seisakusho Co., Ltd.) and heated to 210°C. After evacuation, F2 gas diluted to 20 % by volume with N2 gas was introduced to atmospheric pressure. After 0.5 hours from the introduction of the F2 gas, the chamber was once evacuated, and the F2 gas was introduced again. Further, after 0.5 hours, the chamber was evacuated again and F 2 gas was introduced again. Thereafter, the F 2 gas introduction and evacuation operations were continued once an hour, and the reaction was carried out at a temperature of 210° C. for 10 hours. After completion of the reaction, the interior of the reactor was sufficiently replaced with N2 gas to complete the fluorination reaction. Using the fluorinated pellets, various physical properties were measured by the methods described above. Table 3 shows the results.
- Example 2 2.04 kg of PPVE, 0.15 kg of methanol, and 0.066 kg of PPVE were added for every 1 kg of TFE supplied. Fluorinated pellets were obtained in the same manner as in Example 1, except that Table 3 shows the results.
- Example 3 Fluorinated pellets were obtained in the same manner as in Example 1, except that 2.12 kg of PPVE, 0.18 kg of methanol, 0.068 kg of PPVE were added for each 1 kg of TFE supplied, and the polymerization time was changed to 7.5 hours. got Table 3 shows the results.
- Example 4 Fluorinated pellets were prepared in the same manner as in Example 1, except that 2.20 kg of PPVE, 0.21 kg of methanol, 0.071 kg of PPVE were added for each 1 kg of TFE supplied, and the polymerization time was changed to 7.5 hours. got Table 3 shows the results.
- Example 5 Fluorinated pellets were produced in the same manner as in Example 1, except that 2.20 kg of PPVE, 0.23 kg of methanol, 0.071 kg of PPVE were added for each 1 kg of TFE supplied, and the polymerization time was changed to 7.5 hours. got Table 3 shows the results.
- Comparative example 1 Fluorinated pellets were obtained in the same manner as in Example 1, except that 1.76 kg of PPVE, 0.21 kg of methanol, and 0.058 kg of PPVE were added for every 1 kg of TFE supplied. Table 3 shows the results.
- Comparative example 2 After 49.0 L of pure water was put into an autoclave with a volume of 174 L and the autoclave was sufficiently purged with nitrogen, 40.7 kg of perfluorocyclobutane, 2.58 kg of perfluoro(propyl vinyl ether) (PPVE), and 1.75 kg of methanol were charged. , the temperature in the system was kept at 35° C., and the stirring speed was kept at 200 rpm. Then, after pressurizing tetrafluoroethylene (TFE) to 0.64 MPa, 0.041 kg of a 50% methanol solution of di-n-propylperoxydicarbonate was added to initiate polymerization.
- TFE tetrafluoroethylene
- Comparative example 3 Fluorinated pellets were obtained in the same manner as in Comparative Example 1 except that 2.12 kg of PPVE, 0.03 kg of methanol, 0.068 kg of PPVE were added for every 1 kg of TFE supplied, and the polymerization time was changed to 7 hours. rice field. Table 3 shows the results.
- Comparative example 5 After 51.8 L of pure water was put into an autoclave with a volume of 174 L and the autoclave was sufficiently purged with nitrogen, 40.9 kg of perfluorocyclobutane, 2.88 kg of perfluoro(propyl vinyl ether) (PPVE), and 1.56 kg of methanol were charged. , the temperature in the system was kept at 35° C., and the stirring speed was kept at 200 rpm. Then, after pressurizing tetrafluoroethylene (TFE) to 0.64 MPa, 0.051 kg of a 50% methanol solution of di-n-propylperoxydicarbonate was added to initiate polymerization.
- TFE tetrafluoroethylene
- Tensile strength (TS) at 100°C Tensile strength at 100° C. was measured according to ASTM D638.
- injection moldability Using an injection molding machine (manufactured by Sumitomo Heavy Industries, Ltd., SE50EV-A), the copolymer was injection molded at a cylinder temperature of 395°C, a mold temperature of 220°C, and an injection speed of 3 mm/s.
- a mold a mold (100 mm ⁇ 100 mm ⁇ 3 mmt, film gate, flow length 10 mm) of HPM38 plated with Cr was used.
- the obtained injection molded article was observed and evaluated according to the following criteria. The presence or absence of cloudiness was visually confirmed. The presence or absence of surface roughness was confirmed by touching the surface of the injection molded article. 3: The entire injection-molded article is transparent and the entire surface is smooth.
- DMC dimethyl carbonate
- the resulting aqueous solution was transferred to a measurement cell of an ion chromatography system, and the amount of fluoride ions in this aqueous solution was measured by an ion chromatography system (Dionex ICS-2100 manufactured by Thermo Fisher Scientific).
- a sheet having a small load deflection rate at 110°C has excellent rigidity at a high temperature of 110°C.
- Load deflection rate (%) a2/a1 x 100
- a1 Specimen thickness before test (mm)
- a2 Amount of deflection at 110°C (mm)
- the tensile strength was measured after 100,000 cycles using a fatigue tester MMT-250NV-10 manufactured by Shimadzu Corporation.
- a sheet with a thickness of about 2.4 mm was produced using a pellet and heat press molding machine, and a dumbbell-shaped sample (thickness 2.4 mm, width 5.0 mm, measurement length 22 mm) was prepared using ASTM D1708 micro dumbbells. made.
- a sample was attached to a measuring jig, and the measuring jig with the sample attached was placed in a constant temperature bath at 150°C.
- the tensile strength after 100,000 cycles is the ratio of the tensile strength when a cyclic load is applied 100,000 times to the cross-sectional area of the sample.
- a sheet having a high tensile strength after 100,000 cycles maintains a high tensile strength even after a load is applied 100,000 times, and has excellent durability against repeated loads.
- outer diameter of the obtained coated electric wire was continuously measured for 1 hour using an outer diameter measuring device (ODAC18XY manufactured by Zumbach).
- Outer diameter fluctuation values were obtained by rounding off to the third decimal place the outer diameter value that deviated most from the predetermined outer diameter value (2.00 mm) among the measured outer diameter values.
- the ratio of the absolute value of the difference between the predetermined outer diameter (2.00 mm) and the outer diameter variation value (outer diameter variation rate) was calculated and evaluated according to the following criteria.
- Outer diameter variation rate (%))
- a test piece of 50 mm ⁇ 50 mm was cut out from the obtained film with a thickness of 0.10 mm.
- the bat was put in a constant temperature bath heated to 160° C. with the lid of the bat being closed to make the inside a closed space. After 10 minutes, the vat was taken out, and after standing to cool to room temperature, the test piece was taken out from the vat. The melted and solidified black toner was peeled off from the test piece, and the peeled surface of the test piece was visually observed and evaluated according to the following criteria.
- ⁇ Black deposits are not observed on the peeled surface of the test piece
- ⁇ Black deposits are observed on the peeled surface of the test piece
- Abrasion test Using a pellet and heat press molding machine, a sheet-like test piece having a thickness of about 0.2 mm was produced, and a test piece of 10 cm x 10 cm was cut out from this.
- the prepared test piece was fixed on the test table of a Taber abrasion tester (No. 101 special Taber type ablation tester, manufactured by Yasuda Seiki Seisakusho Co., Ltd.), and the load was 500 g.
- Carbon dioxide permeation coefficient A sheet-like specimen having a thickness of about 0.1 mm was produced using a pellet and heat press molding machine. Using the obtained test piece, according to the method described in JIS K7126-1: 2006, using a differential pressure type gas permeation meter (L100-5000 type gas permeation meter, manufactured by Systech Illinois), carbon dioxide permeability is measured. I made a measurement. Values for carbon dioxide permeability were obtained at a permeation area of 50.24 cm 2 , test temperature of 70° C., and test humidity of 0% RH. Using the obtained carbon dioxide permeability and the thickness of the test piece, the carbon dioxide permeability coefficient was calculated from the following equation.
- GTR Carbon dioxide permeability (cm 3 /(m 2 ⁇ 24 h ⁇ atm))
- d test piece thickness (mm)
- a cylindrical test piece with a diameter of 2 mm was produced by melt-molding the pellets.
- the prepared test piece was set in a 6 GHz cavity resonator manufactured by Kanto Denshi Applied Development Co., Ltd., and measured with a network analyzer manufactured by Agilent Technologies.
- the dielectric loss tangent (tan ⁇ ) at 20° C. and 6 GHz was obtained by analyzing the measurement results with analysis software “CPMA” manufactured by Kanto Denshi Applied Development Co., Ltd. on a PC connected to a network analyzer.
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Abstract
Description
I:吸光度
K:補正係数
t:フィルムの厚さ(mm)
ジノルマルプロピルパーオキシジカーボネート、ジイソプロピルパーオキシジカーボネート、ジsec-ブチルパーオキシジカーボネート、ジ-2-エトキシエチルパーオキシジカーボネートなどのジアルキルパーオキシカーボネート類;
t-ブチルパーオキシイソブチレート、t-ブチルパーオキシピバレートなどのパーオキシエステル類;
ジt-ブチルパーオキサイドなどのジアルキルパーオキサイド類;
ジ[フルオロ(またはフルオロクロロ)アシル]パーオキサイド類;
などが代表的なものとしてあげられる。
食品包装用フィルム、食品製造工程で使用する流体移送ラインのライニング材、パッキン、シール材、シート等の食品製造装置用流体移送部材;
薬品用の薬栓、包装フィルム、薬品製造工程で使用される流体移送ラインのライニング材、パッキン、シール材、シート等の薬液移送部材;
化学プラントや半導体工場の薬液タンクや配管の内面ライニング部材;
自動車の燃料系統並びに周辺装置に用いられるO(角)リング・チューブ・パッキン、バルブ芯材、ホース、シール材等、自動車のAT装置に用いられるホース、シール材等の燃料移送部材;
自動車のエンジン並びに周辺装置に用いられるキャブレターのフランジガスケット、シャフトシール、バルブステムシール、シール材、ホース等、自動車のブレーキホース、エアコンホース、ラジエーターホース、電線被覆材等のその他の自動車部材;
半導体製造装置のO(角)リング、チューブ、パッキン、バルブ芯材、ホース、シール材、ロール、ガスケット、ダイヤフラム、継手等の半導体装置用薬液移送部材;
塗装設備用の塗装ロール、ホース、チューブ、インク用容器等の塗装・インク用部材;
飲食物用のチューブ又は飲食物用ホース等のチューブ、ホース、ベルト、パッキン、継手等の飲食物移送部材、食品包装材、ガラス調理機器;
廃液輸送用のチューブ、ホース等の廃液輸送用部材;
高温液体輸送用のチューブ、ホース等の高温液体輸送用部材;
スチーム配管用のチューブ、ホース等のスチーム配管用部材;
船舶のデッキ等の配管に巻き付けるテープ等の配管用防食テープ;
電線被覆材、光ファイバー被覆材、太陽電池の光起電素子の光入射側表面に設ける透明な表面被覆材および裏面剤等の各種被覆材;
ダイヤフラムポンプのダイヤフラムや各種パッキン類等の摺動部材;
農業用フィルム、各種屋根材・側壁等の耐侯性カバー;
建築分野で使用される内装材、不燃性防火安全ガラス等のガラス類の被覆材;
家電分野等で使用されるラミネート鋼板等のライニング材;
各単量体単位の含有量は、NMR分析装置(たとえば、ブルカーバイオスピン社製、AVANCE300 高温プローブ)により測定した。
ASTM D1238に従って、メルトインデクサーG-01(東洋精機製作所社製)を用いて、372℃、5kg荷重下で内径2.1mm、長さ8mmのノズルから10分間あたりに流出するポリマーの質量(g/10分)を求めた。
共重合体のペレットを、コールドプレスにより成形して、厚さ0.25~0.30mmのフィルムを作製した。このフィルムをフーリエ変換赤外分光分析装置〔FT-IR(Spectrum One、パーキンエルマー社製)〕により40回スキャンし、分析して赤外吸収スペクトルを得、完全にフッ素化されて官能基が存在しないベーススペクトルとの差スペクトルを得た。この差スペクトルに現れる特定の官能基の吸収ピークから、下記式(A)に従って試料における炭素原子1×106個あたりの官能基数Nを算出した。
N=I×K/t (A)
I:吸光度
K:補正係数
t:フィルムの厚さ(mm)
参考までに、本開示における官能基について、吸収周波数、モル吸光係数および補正係数を表2に示す。モル吸光係数は低分子モデル化合物のFT-IR測定データから決定したものである。
示差走査熱量計(商品名:X-DSC7000、日立ハイテクサイエンス社製)を用いて、昇温速度10℃/分で200℃から350℃までの1度目の昇温を行い、続けて、冷却速度10℃/分で350℃から200℃まで冷却し、再度、昇温速度10℃/分で200℃から350℃までの2度目の昇温を行い、2度目の昇温過程で生ずる溶融曲線ピークから融点を求めた。
174L容積のオートクレーブに純水26.6Lを投入し、充分に窒素置換を行った後、パーフルオロシクロブタン30.4kgとパーフルオロ(プロピルビニルエーテル)(PPVE)1.96kg、メタノール0.11kgとを仕込み、系内の温度を35℃、攪拌速度を200rpmに保った。次いで、テトラフルオロエチレン(TFE)を0.58MPaまで圧入した後、ジ-n-プロピルパーオキシジカーボネートの50%メタノール溶液0.010kgを投入して重合を開始した。重合の進行とともに系内圧力が低下するので、TFEを連続供給して圧力を一定にし、PPVEをTFEの供給1kg毎に0.064kg追加して7時間重合を継続した。TFEを放出して、オートクレーブ内を大気圧に戻した後、得られた反応生成物を水洗、乾燥して15kgの粉末を得た。
PPVEを2.04kg、メタノールを0.15kg、PPVEをTFEの供給1kg毎に0.066kg追加、真空振動式反応装置の昇温温度を170℃、反応を170℃の温度下で5時間に変更した以外は、実施例1と同様にして、フッ素化したペレットを得た。結果を表3に示す。
PPVEを2.12kg、メタノールを0.18kg、PPVEをTFEの供給1kg毎に0.068kg追加、重合時間を7.5時間に変更した以外は、実施例1と同様にして、フッ素化したペレットを得た。結果を表3に示す。
PPVEを2.20kg、メタノールを0.21kg、PPVEをTFEの供給1kg毎に0.071kg追加、重合時間を7.5時間に変更した以外は、実施例1と同様にして、フッ素化したペレットを得た。結果を表3に示す。
PPVEを2.20kg、メタノールを0.23kg、PPVEをTFEの供給1kg毎に0.071kg追加、重合時間を7.5時間に変更した以外は、実施例1と同様にして、フッ素化したペレットを得た。結果を表3に示す。
PPVEを1.76kg、メタノールを0.21kg、PPVEをTFEの供給1kg毎に0.058kg追加に変更した以外は、実施例1と同様にして、フッ素化したペレットを得た。結果を表3に示す。
174L容積のオートクレーブに純水49.0Lを投入し、充分に窒素置換を行った後、パーフルオロシクロブタン40.7kgとパーフルオロ(プロピルビニルエーテル)(PPVE)2.58kg、メタノール1.75kgとを仕込み、系内の温度を35℃、攪拌速度を200rpmに保った。次いで、テトラフルオロエチレン(TFE)を0.64MPaまで圧入した後、ジ-n-プロピルパーオキシジカーボネートの50%メタノール溶液0.041kgを投入して重合を開始した。重合の進行とともに系内圧力が低下するので、TFEを連続供給して圧力を一定にし、PPVEをTFEの供給1kg毎に0.071kg追加して18.5時間重合を継続した。TFEを放出して、オートクレーブ内を大気圧に戻した後、得られた反応生成物を水洗、乾燥して30kgの粉末を得た。
得られた粉末を、スクリュー押出機(商品名:PCM46、池貝社製)により360℃にて溶融押出して、TFE/PPVE共重合体のペレットを得た。得られたペレットを用いて上記した方法によりPPVE含有量を測定した。結果を表3に示す。
得られたペレットを、実施例1と同様にフッ素化して、フッ素化したペレットを得た。フッ素化したペレットを用いて、上記した方法により、各種物性を測定した。結果を表3に示す。
PPVEを2.12kg、メタノールを0.03kg、PPVEをTFEの供給1kg毎に0.068kg追加、重合時間を7時間に変更した以外は、比較例1と同様にして、フッ素化したペレットを得た。結果を表3に示す。
メタノールを0.14kgに変更した以外は、実施例1と同様にして、フッ素化していないペレットを得た。結果を表3に示す。
174L容積のオートクレーブに純水51.8Lを投入し、充分に窒素置換を行った後、パーフルオロシクロブタン40.9kgとパーフルオロ(プロピルビニルエーテル)(PPVE)2.88kg、メタノール1.56kgとを仕込み、系内の温度を35℃、攪拌速度を200rpmに保った。次いで、テトラフルオロエチレン(TFE)を0.64MPaまで圧入した後、ジ-n-プロピルパーオキシジカーボネートの50%メタノール溶液0.051kgを投入して重合を開始した。重合の進行とともに系内圧力が低下するので、TFEを連続供給して圧力を一定にし、PPVEをTFEの供給1kg毎に0.060kg追加投入した。TFEの追加投入量が40.9kgに達したところで重合を終了させた。未反応のTFEを放出して、オートクレーブ内を大気圧に戻した後、得られた反応生成物を水洗、乾燥して41.0kgの粉末を得た。
ペレットおよびヒートプレス成形機を用いて、厚さ約1.0mmのシートを作製した。ヘイズメーター(商品名:NDH7000SP、日本電色工業社製)を用いて、JIS K 7136に従い、純水を入れた石英セルにシートを浸し、ヘイズ値を測定した。
ASTM D638に準拠して、100℃における引張強度を測定した。
ペレットおよびヒートプレス成形機を用いて、厚さ約0.2mmのシート状試験片を作製した。試験カップ(透過面積12.56cm2)内に水を18g入れ、シート状試験片で覆い、PTFEガスケットを挟んで締め付け、密閉した。シート状試験片と水が接するようにして、温度95℃で30日間保持した後取出し、室温で2時間放置後に質量減少量を測定した。次式により、水蒸気透過度(g・cm/m2)を測定した。
水蒸気透過度(g・cm/m2)=質量減少量(g)×シート状試験片の厚さ(cm)/透過面積(m2)
射出成形機(住友重機械工業社製、SE50EV-A)を使用し、シリンダ温度を395℃、金型温度を220℃、射出速度3mm/sとして、共重合体を射出成形した。金型として、HPM38にCrめっきを施した金型(100mm×100mm×3mmt、フィルムゲート、流動長10mm)を用いた。得られた射出成形体を観察し、以下の基準により評価した。白濁の有無は、目視により確認した。表面の荒れの有無は、射出成形体の表面を触ることにより、確認した。
3:射出成形体全体が透明であり、かつ、表面全体が平滑である
2:金型のゲートが位置していた箇所から1cmの範囲内に白濁が観察され、かつ、表面全体が平滑である
1:金型のゲートが位置していた箇所から1cmの範囲内に白濁が観察され、かつ、金型のゲートが位置していた箇所から1cmの範囲内の表面に荒れが確認される
0:金型全体に共重合体が充填されず、所望の形状の成形体が得られない
金型(内径120mm、高さ38mm)に、ペレットを約5g投入した状態で、熱板プレスにて370℃で20分間溶融後、圧力1MPa(樹脂圧)で加圧しながら水冷して、厚み約0.2mmの成形体を作製した。その後、得られた成形体を用いて、15mm四方の試験片を作製した。
ペレットおよびヒートプレス成形機を用いて、厚さ約0.1mmのシート状試験片を作製した。試験カップ(透過面積12.56cm2)内に酢酸エチルを10g入れ、シート状試験片で覆い、PTFEガスケットを挟んで締め付け、密閉した。シート状試験片と酢酸エチルが接するようにして、温度60℃で45日間保持した後取出し、室温で1時間放置後に質量減少量を測定した。次式により、酢酸エチル透過度(g・cm/m2)を求めた。
酢酸エチル(g・cm/m2)=質量減少量(g)×シート状試験片の厚さ(cm)/透過面積(m2)
ペレットおよびヒートプレス成形機を用いて、厚さ約4.2mmのシート状試験片を作製し、これから80×10mmの試験片を切り出し、電気炉にて100℃で20時間加熱した。得られた試験片を用いた以外は、JIS K-K 7191-1に記載の方法に準じて、ヒートディストーションテスター(安田精機製作所社製)にて、試験温度30~150℃、昇温速度120℃/時間、曲げ応力1.8MPa、フラットワイズ法の条件にて試験を行った。次式により荷重たわみ率を求めた。110℃での荷重たわみ率が小さいシートは、110℃高温時剛性に優れている。
荷重たわみ率(%)=a2/a1×100
a1:試験前の試験片厚み(mm)
a2:110℃でのたわみ量(mm)
島津製作所社製疲労試験機MMT-250NV-10を用いて10万回サイクル後引張強度を測定した。ペレットおよびヒートプレス成形機を用いて、厚さ約2.4mmのシートを作製し、ASTM D1708マイクロダンベル用いて、ダンベル形状(厚み2.4mm、幅5.0mm、測定部長さ22mm)のサンプルを作製した。サンプルを測定治具に装着し、サンプルを装着した状態で測定治具を150℃の恒温槽中に設置した。ストローク0.2mm、周波数100Hzで、一軸方向への引張りを繰り返し、引張り毎の引張強度(ストロークが+0.2mmの時の引張強度)を測定した。以下の式に従って測定値から10万回サイクル後引張強度を算出した。本実施例では、サンプルの断面積は12.0mm2である
10万回サイクル後引張強度(mN/mm2)=引張強度(10万回)(mN)/サンプルの断面積(mm2)
ペレット20gをガラス容器(50mlスクリュー管)に入れ、HPM38(Crめっき)またはHPM38(Niめっき)により形成された金属柱(5mm四方の四角形状、長さ30mm)を、ガラス容器にペレットに触れないようにぶら下げた。そして、ガラス容器にアルミホイルで蓋をした。ガラス容器をこの状態のままオーブンに入れ、380℃で3時間加熱した。その後、加熱したガラス容器をオーブンから取り出し、室温まで冷却を行い、金属柱表面の腐食の程度を目視で観察した。腐食程度は次の基準で判定を行った。
○:腐食が観察されない
△:わずかに腐食が観察される
×:腐食が観察される
30mmφ電線被覆成形機(田辺プラスチック機械社製)を用いて、導体径1.00mmの銅導体上に、下記被覆厚みで共重合体を押出被覆し、被覆電線を得た。電線被覆押出成形条件は以下の通りである。
a)心導体:導体径1.00mm
b)被覆厚み:0.50mm
c)被覆電線径:2.00mm
d)電線引取速度:7m/分
e)押出条件:
・シリンダー軸径=20mm,L/D=22の単軸押出成形機
・ダイ(内径)/チップ(外径)=30.0mm/10.0mm
押出機の設定温度:バレル部C-1(330℃)、バレル部C-2(360℃)、バレル部C-3(375℃)、ヘッド部H(390℃)、ダイ部D-1(405℃)、ダイ部D-2(395℃)。心線予備加熱は80℃に設定した。
外径測定器(Zumbach社製ODAC18XY)を用いて、得られた被覆電線の外径を1時間連続で測定した。測定された外径値のうち、所定の外径値(2.00mm)よりも最も大きく乖離した外径値の小数点3桁目を四捨五入することにより、外径の変動値を求めた。所定の外径(2.00mm)に対する、所定の外径と、外径の変動値との差の絶対値の割合(外径の変動率)を算出し、以下の基準により評価した。
(外径の変動率(%))=|(外径の変動値)-(所定の外径)|/(所定の外径)×100
±1%:外径の変動率が1%以下である
±2%:外径の変動率が1%超2%以下である
×:外径の変動率が2%超である
得られた被覆電線を、長さ20cmに切り取り、恒温恒湿槽(FATC社製 Junior SD-01)にて、60℃・湿度95%で、2週間静置した後、被覆層を剥がして導体をむき出しにして、導体の表面を目視で観察し、以下の基準により評価した。
○:腐食が観察されない
×:腐食が観察される
φ14mm押出機(井元製作所社製)およびTダイを用い、フィルムを作製した。押出成形条件は以下の通りである。
a)巻き取り速度:1m/分
b)ロール温度:120℃
c)フィルム幅:70mm
d)厚み:0.10mm
e)押出条件:
・シリンダー軸径=14mm,L/D=20の単軸押出成形機
押出機の設定温度:バレル部C-1(330℃)、バレル部C-2(350℃)、バレル部C-3(370℃)、Tダイ部(380℃)
○:試験片の剥離面に黒色付着物が観察されない
×:試験片の剥離面に黒色付着物が観察される
ペレットおよびヒートプレス成形機を用いて、厚さ約0.2mmのシート状試験片を作製し、これから10cm×10cmの試験片を切り出した。テーバー摩耗試験機(No.101 特型テーバー式アブレーションテスター、安田精機製作所社製)の試験台に作製した試験片を固定し、荷重500g、摩耗輪CS-10(研磨紙#240で20回転研磨したもの)、回転速度60rpmの条件で、テーバー摩耗試験機を用いて摩耗試験を行った。1000回転後の試験片重量を計量し、同じ試験片でさらに10000回転試験後に試験片重量を計量した。次式により、摩耗量を求めた。
摩耗量(mg)=M1-M2
M1:1000回転後の試験片重量(mg)
M2:10000回転後の試験片重量(mg)
ペレットおよびヒートプレス成形機を用いて、厚さ約0.1mmのシート状試験片を作製した。得られた試験片を用い、JIS K7126-1:2006に記載の方法に従って、差圧式ガス透過度計(L100-5000型ガス透過度計、Systech illinois社製)を用いて、二酸化炭素透過度の測定を行った。透過面積50.24cm2、試験温度70℃、試験湿度0%RHでの二酸化炭素透過度の数値を得た。得られた二酸化炭素透過度と試験片厚みを用いて、次式より二酸化炭素透過係数を算出した。
二酸化炭素透過係数(cm3・mm/(m2・24h・atm))=GTR×d
GTR:二酸化炭素透過度(cm3/(m2・24h・atm))
d:試験片厚み(mm)
ペレットおよびヒートプレス成形機を用いて、厚さ約0.2mmのシート状試験片を作製した。試験カップ(透過面積12.56cm2)内にジメチルカーボネート(DMC)を10g入れ、シート状試験片で覆い、PTFEガスケットを挟んで締め付け、密閉した。シート状試験片とDMCが接するようにして、温度60℃で30日間保持した後取出し、室温で1時間放置後に質量減少量を測定した。次式により、DMC透過度(g・cm/m2)を求めた。
電解液透過度(g・cm/m2)=質量減少量(g)×シート状試験片の厚さ(cm)/透過面積(m2)
実施例で得られたペレットを用いて、φ30mm押出成形機(田辺プラスチックス機械製)にて、外径10.0mm、肉厚1.0mmのチューブを押出成形した。
押出成形条件は以下の通りである。
a)ダイ内径:20mm
b)マンドレル外径:13mm
c)サイジングダイ内径:10.5mm
d)引取り速度:0.4m/分
e)外径:10.0mm
f)肉厚:1.0mm
g)押出条件:
・シリンダ軸径=30mm,L/D=22の単軸押出成形機
押出機の設定温度:バレル部C-1(330℃)、バレル部C-2(365℃)、バレル部C-3(380℃)、ヘッド部H-1(380℃)、ダイ部D-1(390℃)、ダイ部D-2(390℃)
得られたチューブを観察し、以下の基準により評価した。チューブの外観は、目視により確認した。
○:外観が良好である
×:断面が円形になっておらず、扁平していたり偏肉が観られるなど、外観が不良である
ペレットを、溶融成形することにより、直径2mmの円柱状の試験片を作製した。作製した試験片を、関東電子応用開発社製6GHz用空洞共振器にセットし、アジレントテクノロジー社製ネットワークアナライザで測定した。測定結果を、ネットワークアナライザに接続されたPC上の関東電子応用開発社製解析ソフト「CPMA」で解析することにより、20℃、6GHzでの誘電正接(tanδ)を求めた。
Claims (5)
- テトラフルオロエチレン単位およびパーフルオロ(プロピルビニルエーテル)単位を含有し、
パーフルオロ(プロピルビニルエーテル)単位の含有量が、全単量体単位に対して、2.26~2.75モル%であり、
372℃におけるメルトフローレートが、4.0~11.0g/10分であり、
官能基数が、主鎖炭素数106個あたり、50個以下である
共重合体。 - 372℃におけるメルトフローレートが、5.0~10.0g/10分である請求項1に記載の共重合体。
- 請求項1または2に記載の共重合体を含有する射出成形体。
- 請求項1または2に記載の共重合体を含有する被覆層を備える被覆電線。
- 請求項1または2に記載の共重合体を含有する成形体であって、前記成形体が、フィルターハウジング、フィルム、ボトル、電線被覆またはチューブである成形体。
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