WO2022181228A1 - 射出成形体およびその製造方法 - Google Patents
射出成形体およびその製造方法 Download PDFInfo
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- WO2022181228A1 WO2022181228A1 PCT/JP2022/003643 JP2022003643W WO2022181228A1 WO 2022181228 A1 WO2022181228 A1 WO 2022181228A1 JP 2022003643 W JP2022003643 W JP 2022003643W WO 2022181228 A1 WO2022181228 A1 WO 2022181228A1
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- injection
- copolymer
- molded article
- mass
- injection molded
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- 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
- BXKDSDJJOVIHMX-UHFFFAOYSA-N edrophonium chloride Chemical compound [Cl-].CC[N+](C)(C)C1=CC=CC(O)=C1 BXKDSDJJOVIHMX-UHFFFAOYSA-N 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 238000010528 free radical solution polymerization reaction Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 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-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 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
- 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
- 239000004615 ingredient Substances 0.000 description 1
- 150000002500 ions Chemical class 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
- 239000004611 light stabiliser 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
- 239000012046 mixed solvent Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 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
- 230000003287 optical effect Effects 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 238000005453 pelletization 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
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 159000000001 potassium salts Chemical class 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 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
- 239000004065 semiconductor Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000003860 storage 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
- 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
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 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
- 230000000007 visual effect Effects 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Images
Classifications
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0001—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor characterised by the choice of material
-
- 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
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/47—Means for plasticising or homogenising the moulding material or forcing it into the mould using screws
-
- 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
-
- 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
-
- 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
- C08F8/18—Introducing halogen atoms or halogen-containing groups
- C08F8/20—Halogenation
- C08F8/22—Halogenation by reaction with free halogens
-
- 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
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
-
- 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
- B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
- B29K2027/12—Use of polyvinylhalogenides or derivatives thereof as moulding material containing fluorine
-
- 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
- B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
- B29K2027/12—Use of polyvinylhalogenides or derivatives thereof as moulding material containing fluorine
- B29K2027/18—PTFE, i.e. polytetrafluorethene, e.g. ePTFE, i.e. expanded polytetrafluorethene
-
- 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
- B29K2227/00—Use of polyvinylhalogenides or derivatives thereof as reinforcement
- B29K2227/12—Use of polyvinylhalogenides or derivatives thereof as reinforcement containing fluorine
-
- 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
- B29K2995/0012—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular thermal properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2001/00—Articles provided with screw threads
- B29L2001/005—Nuts
-
- 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
- C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C08J2327/18—Homopolymers or copolymers of tetrafluoroethylene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2427/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2427/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2427/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
Definitions
- the present disclosure relates to an injection molded body and a manufacturing method thereof.
- Patent Document 1 discloses an ozone-resistant injection-molded article made of a perfluoro resin, wherein the perfluoro resin is made of a perfluoro polymer, has an MIT value of 300,000 times or more, and has an unstable terminal group as described above. It describes an ozone-resistant injection-molded article characterized by having 50 or less carbon atoms per 1 ⁇ 10 6 carbon atoms in the perfluoropolymer.
- An object of the present disclosure is to provide an injection-molded article having excellent physical properties such as low water vapor permeability, low chemical liquid permeability, abrasion resistance, mechanical properties, high-temperature rigidity, and greatly improved ozone resistance. do.
- an injection molded article containing a copolymer containing tetrafluoroethylene units and fluoro(alkyl vinyl ether) units wherein the content of the fluoro(alkyl vinyl ether) units of the copolymer is 4.7 to 7.0% by mass with respect to the monomer unit, the melt flow rate at 372 ° C. of the copolymer is 11.0 to 22.0 g / 10 minutes, and the copolymer has a melting point of 296 to 305° C., and an injection molded article having a fluorine ion elution amount into water of 7500 ⁇ g/m 2 or less from the injection molded article.
- the amount of fluorine ions eluted into water from the injection-molded article is 5500 ⁇ g/m 2 or less.
- the metal elution amount from the injection-molded article to 50% by mass hydrofluoric acid is 200 ⁇ g/m 2 or less.
- the fluoro(alkyl vinyl ether) units of the copolymer are preferably perfluoro(propyl vinyl ether) units.
- the content of fluoro(alkyl vinyl ether) units in the copolymer is preferably 4.9 to 6.9% by mass based on the total monomer units.
- the melt flow rate of the copolymer at 372° C. is preferably 13.0 to 20.0 g/10 minutes.
- the number of functional groups in the copolymer is preferably 20 or less per 10 6 carbon atoms in the main chain.
- the injection molded article of the present disclosure is preferably a nut.
- the copolymer in the method for manufacturing an injection-molded article, is injection-molded using an injection molding machine having a cylinder and a screw housed in the cylinder. provides a manufacturing method for obtaining the injection molded article.
- the temperature of the copolymer in the cylinder it is preferable to adjust the temperature of the copolymer in the cylinder to 385-395°C.
- a Ni-plated cylinder or a cylinder made of a Ni-based alloy is used as the cylinder, and the screw is made of a Ni-based alloy and has a smear head at its tip.
- a screw is used.
- an injection-molded article having excellent physical properties such as low water vapor permeability, low chemical liquid permeability, abrasion resistance, mechanical properties, high-temperature rigidity, and greatly improved ozone resistance. can.
- Patent Document 1 as articles excellent in ozone resistance such as piping materials and joints used in semiconductor manufacturing equipment in particular, they are made of a perfluoropolymer, have an MIT value of 300,000 times or more, and have unstable terminal groups as described above.
- an ozone-resistant injection-molded article made of a perfluoro resin containing 50 or less carbon atoms per 1 ⁇ 10 6 carbon atoms in the perfluoro polymer.
- Example 4 of Patent Document 1 a tetrafluoroethylene/perfluoro(propyl vinyl ether) copolymer having a melt flow rate (MFR) of 14.8 g/10 minutes is used to produce a cap nut by injection molding.
- MFR melt flow rate
- Such a cap nut also has sufficient ozone resistance, but if it is possible to obtain an injection-molded body with further improved ozone resistance, it will lead to a longer service life of the parts and a reduction in cost. .
- an injection molded article produced using a copolymer having a relatively high MFR of about 14.8 g/10 min has a relatively low MFR. It was found that the ozone resistance tends to be inferior to that of the injection molded article produced using the copolymer.
- the injection conditions were also greatly reviewed. The present inventors have found that the ozone resistance of the injection-molded article is greatly improved when the amount of fluorine ions eluted from the injection-molded article into water is small, and have completed the injection-molded article of the present disclosure.
- the injection-molded article of the present disclosure is an injection-molded article containing a specific copolymer and having a fluorine ion elution amount into water from the injection-molded article of 7500 ⁇ g/m 2 or less. be. Since the injection molded article of the present disclosure has such a configuration, it has excellent physical properties such as low water vapor permeability, low chemical liquid permeability, abrasion resistance, mechanical properties, and high temperature rigidity, and is resistant to heat. It also has excellent ozone resistance.
- the screw thread is difficult to grind, it is difficult to crack even when used in an environment where it comes into contact with ozone gas or ozone water, and it is difficult to deform and loosen even when used at high temperatures.
- a hard-to-remove nut is obtained.
- such nuts also have high tensile strength and are less likely to break.
- the amount of fluorine ions eluted from the injection-molded article into water is 7,500 ⁇ g/m 2 or less, and is preferably 5,500 ⁇ g/m 2 or less, more preferably 5,000 ⁇ g/m 2 , since the ozone resistance of the injection-molded article can be further improved. m 2 or less, and particularly preferably 4500 ⁇ g/m 2 or less.
- the lower limit of the fluorine ion elution amount is not particularly limited, and is preferably as low as possible.
- the amount of fluorine ions eluted from the injection molded product into water was determined by immersing the injection molded product in water at 121°C for 1 hour, measuring the fluorine ion concentration of the collected water using a fluorine ion meter, and measuring the concentration of fluorine ions in the water. It can be specified by calculating the amount of fluoride ion elution per body surface area.
- the amount of metal eluted from the injection-molded article into 50% by mass hydrofluoric acid is preferably 200 ⁇ g/m 2 or less, more preferably 150 ⁇ g/m 2 , since the ozone resistance of the injection-molded article can be further improved. or less, more preferably 100 ⁇ g/m 2 or less, and particularly preferably 50 ⁇ g/m 2 or less.
- the lower limit of the metal elution amount is not particularly limited, and the lower the better. and may be 5 ⁇ g/m 2 or more.
- the metal elution amount is the total elution amount of iron, chromium and nickel eluted from the injection molded body into 50% by mass hydrofluoric acid.
- the amount of metal eluted from the injection-molded article into 50% by mass hydrofluoric acid was collected using an ICP emission spectrometer after the injection-molded article was immersed in 50% by mass hydrofluoric acid at 25°C for 24 hours. It can be specified by measuring the metal concentration in a measurement solution prepared from 50 mass % hydrofluoric acid and calculating the metal elution amount per surface area of the injection molded body.
- An injection-molded article having a fluorine ion elution amount and a metal elution amount within the above ranges can be produced by carrying out the method for producing an injection-molded article, which will be described later, using a specific copolymer.
- the injection molded article of the present disclosure contains a copolymer containing tetrafluoroethylene (TFE) units and fluoro(alkyl vinyl ether) (FAVE) units.
- This copolymer 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 above FAVE is preferably a monomer represented by the general formula (1), and from perfluoro(methyl vinyl ether), perfluoro(ethyl vinyl ether) (PEVE) and perfluoro(propyl vinyl ether) (PPVE) At least one selected from the group consisting of is more preferred, at least one selected from the group consisting of PEVE and PPVE is further preferred, and PPVE is particularly preferred.
- the content of FAVE units in the copolymer is 4.7-7.0% by mass with respect to the total monomer units.
- the content of FAVE units in the copolymer is preferably 4.8% by mass or more, more preferably 4.9% by mass or more, still more preferably 5.0% by mass or more, and particularly preferably 5.0% by mass or more. .1% by mass or more, most preferably 5.2% by mass or more, preferably 6.9% by mass or less, more preferably 6.8% by mass or less, and still more preferably 6.7% by mass %, particularly preferably 6.6% by mass or less, and most preferably 6.2% by mass or less.
- the injection-molded article has excellent physical properties such as low water vapor permeability, abrasion resistance, mechanical properties, and high-temperature rigidity. If the content of FAVE units in the copolymer is too low, the injection molded article will be inferior in ozone resistance, abrasion resistance and mechanical properties. If the content of FAVE units in the copolymer is too high, the injection molded product will be inferior in low water vapor permeability and high-temperature rigidity.
- the content of TFE units in the copolymer is preferably 93.0 to 95.3% by mass, more preferably 93.1% by mass or more, and still more preferably 93% by mass, based on the total monomer units.
- 2% by mass or more more preferably 93.3% by mass or less, particularly preferably 93.4% by mass or more, most preferably 93.8% by mass or more, and more preferably 95% by mass.
- 2% by mass or less more preferably 95.1% by mass or less, still more preferably 95.0% by mass or less, particularly preferably 94.9% by mass or less, most preferably 94.8% by mass % by mass or less.
- the injection molded article When the content of the TFE unit in the copolymer is within the above range, the injection molded article has excellent physical properties such as low water vapor permeability, abrasion resistance, mechanical properties, and high temperature rigidity. If the content of TFE units in the copolymer is too high, the injection molded article will be inferior in ozone resistance, abrasion resistance and mechanical properties. If the content of the TFE units in the copolymer is too low, the injection molded article may have poor water vapor permeability and high-temperature rigidity.
- 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 FAVE.
- the content of monomer units copolymerizable with TFE and FAVE is preferably 0 to 2.3% by mass, more preferably 0.3% by mass, based on the total monomer units of the copolymer. 05 to 1.5% by mass, more preferably 0.1 to 0.5% by mass.
- the copolymer is preferably at least one selected from the group consisting of copolymers consisting only of TFE units and FAVE units, and TFE/HFP/FAVE copolymers, and copolymers consisting only of TFE units and FAVE units. Polymers are more preferred.
- the melt flow rate (MFR) of the copolymer is 11.0-22.0 g/10 minutes.
- MFR of the copolymer is preferably 12.0 g/10 min or more, more preferably 13.0 g/10 min or more, preferably 21.0 g/10 min or less, more preferably 20.0 g /10 minutes or less, more preferably 18.0 g/10 minutes or less, and particularly preferably 17.0 g/10 minutes or less. Since the injection molded article of the present disclosure contains a copolymer having a relatively high MFR, it can be easily produced by injection molding. In spite of having coalescence, it is excellent in ozone resistance. If the MFR of the copolymer is too high, the injection molded article will be inferior in ozone resistance, abrasion resistance and mechanical properties.
- the copolymer will not be easy to mold, for example, it will be difficult to mold into a nut with threads having a desired shape.
- the injection-molded article will be inferior in low water vapor permeability, low chemical liquid permeability, and high-temperature rigidity.
- 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 preferably 20 or less, more preferably 15 or less, and still more preferably less than 6.
- the number of functional groups of the copolymer is within the above range, the amount of fluorine ions eluted from the injection-molded article into water can be more easily reduced, and as a result, the ozone resistance of the injection-molded article can be easily improved. can be improved.
- the number of functional groups of the copolymer is within the above range, the low permeability of the injection molded article to chemical solutions such as methyl ethyl ketone is also improved.
- 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 contained in the injection molded article of the present disclosure is preferably fluorinated. It is also preferred that the copolymers included in the injection molded articles of the present disclosure have —CF 3 end groups.
- the melting point of the copolymer is preferably 296-305°C, more preferably 299°C or higher.
- physical properties such as low water vapor permeability, low chemical liquid permeability, wear resistance, mechanical properties, and high-temperature rigidity of the injection molded product are further improved, and ozone resistance is further improved. Improve.
- the injection molded article of the present disclosure contains fillers, plasticizers, processing aids, release agents, pigments, flame retardants, lubricants, light stabilizers, weather stabilizers, conductive agents, antistatic agents, ultraviolet absorbers, and antioxidants.
- Other ingredients such as agents, foaming agents, fragrances, oils, softeners, dehydrofluorination agents, etc. may be included.
- 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.
- the copolymer contained in the injection molded article 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).
- the production method for producing the copolymer contained in the injection molded article of the present disclosure the polymerization process, granulation process, washing process, drying process, transfer process, storage process, pelletization process, fluorination process, product filling process, etc.
- the material and copolymer used for production should be kept from contacting the metal surfaces of each facility and piping as much as possible, and the material used for production It is also preferred to use materials with low metal content.
- the air used for drying the copolymer and the air used for transferring the copolymer between facilities should be clean. and it is also preferred to use dry air.
- a copolymer having a metal content of 100 ng/1 g or less as measured by an ashing method is obtained.
- the metal content of the copolymer to be subjected to injection molding is preferably 100 ng/1 g or less, since an injection-molded article in which the amount of metal eluted into 50% by mass hydrofluoric acid is further reduced can be easily obtained. , more preferably 60 ng/1 g or less, more preferably 50 ng/1 g or less, particularly preferably 40 ng/1 g or less, most preferably 30 ng/1 g or less, and the lower limit is not particularly limited, but 1 ng/ It may be 1 g or more.
- the copolymer is ashed in a cuvette in the atomization section of an atomic absorption spectrophotometer, and the metal content is measured using an atomic absorption spectrophotometer.
- Method Weigh the copolymer into a platinum crucible, incinerate using a gas burner or electric furnace, dissolve the ash in acid, and then measure the metal content using an ICP emission spectrometer or a flameless atomic absorption spectrophotometer. can be used.
- An injection-molded article can be obtained by injection-molding the copolymer obtained as described above.
- the injection molded article of the present disclosure is obtained by injection molding a copolymer using an injection molding machine that includes a cylinder and a screw housed in the cylinder.
- FAVE unit content, MFR and melting point within the above ranges, and the number of functional groups per 106 main chain carbon atoms is 20 or less, preferably 15 or less. can be suitably produced by using
- the production method of the present disclosure has the above configuration, it is possible to easily obtain an injection-molded article in which the amount of fluorine ion elution into water is reduced, and furthermore, an injection-molded article having a complicated shape can be obtained.
- the temperature of the cylinder by adjusting the temperature of the cylinder to 385 to 395°C, an injection molded article with a further reduced amount of fluorine ion elution into water can be obtained.
- the cylinder temperature is preferably 392°C or lower, more preferably 390°C or lower.
- a Ni-plated cylinder or a cylinder made of a Ni-based alloy is used as the cylinder, and a Ni-based alloy is used as the screw, and a smear head is provided at the tip.
- a screw By using a screw, it is possible to obtain an injection-molded article in which the amount of metal eluted into 50% by mass hydrofluoric acid is reduced.
- the shape of the copolymer to be supplied to the injection molding machine is not particularly limited, and copolymers in the form of powder, pellets, etc. can be used.
- a known injection molding machine can be used.
- a copolymer injected from a nozzle of an injection molding machine usually flows through a sprue and a runner and a gate into a mold cavity to fill the mold cavity.
- a mold used for injection molding is formed with runners and gates, and is formed with a mold cavity for forming an injection molded body.
- the shape of the sprue is not particularly limited, and may be circular, rectangular, trapezoidal, or the like.
- the shape of the runner is not particularly limited, and may be circular, rectangular, trapezoidal, or the like.
- a runner system is not particularly limited, and may be a cold runner or a hot runner.
- the gate system is not particularly limited, and may be a direct gate, a side gate, a submarine gate, or the like.
- the number of gates for the mold cavity is not particularly limited. Either a mold having a single-point gate structure or a mold having a multi-point gate structure may be used.
- the number of mold cavities (number of cavities) of the mold is preferably 1-64.
- the injection molded article of the present disclosure can be used for various purposes.
- the injection molded article of the present disclosure includes, for example, nuts, bolts, joints, female joints, films, bottles, gaskets, tubes, hoses, pipes, valves, sheets, seals, packings, tanks, rollers, containers, cocks, connectors, It may be a filter housing, filter cage, flow meter, pump, wafer carrier, wafer box, and the like.
- the injection molded article of the present disclosure has excellent physical properties such as low water vapor permeability, low chemical liquid permeability, abrasion resistance, mechanical properties, and high-temperature rigidity, and is also extremely excellent in ozone resistance. It can be suitably used for nuts, bolts, joints, packings, valves, cocks, connectors, filter housings, filter cages, flowmeters, pumps, and the like. For example, it can be suitably used as a piping member (particularly, a valve housing or a filter cage) used for transporting a chemical solution, or as a flowmeter frame provided with a flow path for a chemical solution in a flowmeter.
- the piping member and the flowmeter body of the present disclosure are excellent in physical properties such as low water vapor permeability, low chemical liquid permeability, abrasion resistance, mechanical properties, high temperature rigidity, etc., and are also extremely excellent in ozone resistance. . Furthermore, the piping member and the flow meter body of the present disclosure do not corrode the mold used for molding, and can be manufactured at an extremely high injection speed even if they have thin-walled portions, and have a beautiful appearance. .
- the injection molded article of the present disclosure has excellent physical properties such as low water vapor permeability, low chemical liquid permeability, abrasion resistance, mechanical properties, and high temperature rigidity, and is also extremely excellent in ozone resistance. Gaskets and packings It can be suitably used as a member to be compressed such as.
- the injection-molded article of the present disclosure has excellent physical properties such as low water vapor permeability, low chemical liquid permeability, abrasion resistance, mechanical properties, and high-temperature rigidity, and is extremely excellent in ozone resistance as a bottle or tube. It can be suitably used as. Bottles or tubes of the present disclosure are less prone to damage during use.
- the injection molded article of the present disclosure has excellent physical properties such as low water vapor permeability, low chemical liquid permeability, abrasion resistance, mechanical properties, high-temperature rigidity, and is also extremely excellent in ozone resistance. Therefore, the injection-molded article of the present disclosure can be suitably used for valve housings and valves.
- the valve of the present disclosure can be manufactured at low cost and with extremely high productivity without corroding the mold, and has low water vapor permeability, low chemical liquid permeability, wear resistance, mechanical properties, high temperature Excellent physical properties such as time stiffness.
- melt flow rate (MFR) Melt flow rate (MFR)
- G-01 melt indexer
- 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
- 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.
- Synthesis example 1 49.0 L of pure water, 40.7 kg of perfluorocyclobutane, 1.61 kg of perfluoro(propyl vinyl ether) (PPVE), 1.02 kg of methanol, and tetrafluoroethylene (TFE) were pressurized to 0.64 MPa. Except that 0.041 kg of a 50% methanol solution of di-n-propyl peroxydicarbonate was used instead of sec-butyl peroxydicarbonate, 0.052 kg of PPVE was added for every 1 kg of TFE supplied, and the polymerization time was changed to 18 hours. obtained pellets in the same manner as described in Example 1 of JP-A-2020-97750. Using the obtained 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.
- Synthesis example 2 49.0 L of pure water, 40.7 kg of perfluorocyclobutane, 2.58 kg of perfluoro(propyl vinyl ether) (PPVE), 2.24 kg of methanol, and tetrafluoroethylene (TFE) were pressurized to 0.64 MPa. Except that 0.041 kg of a 50% methanol solution of di-n-propyl peroxydicarbonate was added instead of sec-butyl peroxydicarbonate, 0.071 kg of PPVE was added for every 1 kg of TFE supplied, and the polymerization time was changed to 19 hours. obtained pellets in the same manner as described in Example 1 of JP-A-2020-97750. Using the obtained pellets, the PPVE content was measured by the method described above. Table 3 shows the results.
- Fluorinated pellets were obtained in the same manner as in Synthesis Example 1, except that the obtained pellets were used. Table 3 shows the results.
- Synthesis example 3 49.0 L of pure water, 40.7 kg of perfluorocyclobutane, 1.90 kg of perfluoro(propyl vinyl ether) (PPVE), 1.50 kg of methanol, and tetrafluoroethylene (TFE) to 0.64 MPa. Except that 0.041 kg of a 50% methanol solution of di-n-propyl peroxydicarbonate was added instead of sec-butyl peroxydicarbonate, 0.057 kg of PPVE was added for every 1 kg of TFE supplied, and the polymerization time was changed to 18 hours. obtained pellets in the same manner as described in Example 1 of JP-A-2020-97750. Using the obtained pellets, the PPVE content was measured by the method described above. Table 3 shows the results.
- Fluorinated pellets were obtained in the same manner as in Synthesis Example 1, except that the obtained pellets were used. Table 3 shows the results.
- Synthesis example 4 49.0 L of pure water, 40.7 kg of perfluorocyclobutane, 2.12 kg of perfluoro(propyl vinyl ether) (PPVE), 1.80 kg of methanol, and tetrafluoroethylene (TFE) were pressurized to 0.64 MPa, di- Except that 0.041 kg of a 50% methanol solution of di-n-propyl peroxydicarbonate was added instead of sec-butyl peroxydicarbonate, 0.062 kg of PPVE was added for every 1 kg of TFE supplied, and the polymerization time was changed to 19 hours. obtained pellets in the same manner as described in Example 1 of JP-A-2020-97750. Using the obtained pellets, the PPVE content was measured by the method described above. Table 3 shows the results.
- Fluorinated pellets were obtained in the same manner as in Synthesis Example 1, except that the obtained pellets were used. Table 3 shows the results.
- Synthesis example 5 51.8 L of pure water, 40.9 kg of perfluorocyclobutane, 2.75 kg of perfluoro(propyl vinyl ether) (PPVE), 2.38 kg of methanol, and tetrafluoroethylene (TFE) were pressurized to 0.64 MPa. 0.051 kg of 50% methanol solution of di-n-propyl peroxydicarbonate instead of sec-butyl peroxydicarbonate, 0.058 kg of PPVE added for every 1 kg of TFE supplied, additional TFE input of 40.9 kg Pellets were obtained in the same manner as described in Example 1 of JP-A-2020-97750, except that the polymerization was terminated when 43.3 kg of dry powder was obtained. Using the obtained pellets, the PPVE content was measured by the method described above. Table 3 shows the results.
- Synthesis example 6 26.6 L of pure water, 1.25 kg of perfluoro(propyl vinyl ether) (PPVE), 2.17 kg of methanol, and tetrafluoroethylene (TFE) were pressurized to 0.58 MPa. Instead, 0.044 kg of a 50% methanol solution of di-n-propyl peroxydicarbonate, 0.044 kg of PPVE was added for each 1 kg of TFE supplied, and the polymerization time was changed to 8.5 hours. Pellets were obtained in the same manner as described in Example 1 of 97750. Using the obtained pellets, the PPVE content was measured by the method described above. Table 3 shows the results.
- Fluorinated pellets were obtained in the same manner as in Synthesis Example 1, except that the obtained pellets were used. Table 3 shows the results.
- Synthesis example 7 26.6 L of pure water, 1.32 kg of perfluoro(propyl vinyl ether) (PPVE), 2.20 kg of methanol, and tetrafluoroethylene (TFE) were pressurized to 0.58 MPa. Instead, 0.044 kg of a 50% methanol solution of di-n-propyl peroxydicarbonate, 0.046 kg of PPVE was added for each 1 kg of TFE supplied, and the polymerization time was changed to 8.5 hours. Pellets were obtained in the same manner as described in Example 1 of 97750. Using the obtained pellets, the PPVE content was measured by the method described above. Table 3 shows the results.
- Fluorinated pellets were obtained in the same manner as in Synthesis Example 1, except that the obtained pellets were used. Table 3 shows the results.
- Synthesis example 8 49.0 L of pure water, 40.7 kg of perfluorocyclobutane, 1.90 kg of perfluoro(propyl vinyl ether) (PPVE), 3.40 kg of methanol, and tetrafluoroethylene (TFE) to 0.64 MPa. Except that 0.041 kg of a 50% methanol solution of di-n-propyl peroxydicarbonate was added instead of sec-butyl peroxydicarbonate, 0.057 kg of PPVE was added for every 1 kg of TFE supplied, and the polymerization time was changed to 19 hours. obtained pellets in the same manner as described in Example 1 of JP-A-2020-97750. Using the obtained pellets, the PPVE content was measured by the method described above. Table 3 shows the results.
- Fluorinated pellets were obtained in the same manner as in Synthesis Example 1, except that the obtained pellets were used. Table 3 shows the results.
- Synthesis example 9 51.8 L of pure water, 40.9 kg of perfluorocyclobutane, 3.47 kg of perfluoro(propyl vinyl ether) (PPVE), 3.28 kg of methanol, and tetrafluoroethylene (TFE) were pressurized to 0.64 MPa, di- 0.026 kg of a 50% solution of di-n-propyl peroxydicarbonate in methanol instead of sec-butyl peroxydicarbonate, 0.071 kg of PPVE added for every 1 kg of TFE supplied, 40.9 kg of TFE added Pellets were obtained in the same manner as described in Example 1 of JP-A-2020-97750, except that the polymerization was terminated when 43.8 kg of dry powder was obtained. Using the obtained pellets, the PPVE content was measured by the method described above. Table 3 shows the results.
- Fluorinated pellets were obtained in the same manner as in Synthesis Example 1, except that the obtained pellets were used. Table 3 shows the results.
- the injection molding of the copolymer was repeated 100 times, the molding machine was stopped, the heater was turned off, the molding machine was restarted after 22 hours, and the injection molding of the polymer was repeated 100 times.
- the injection molding of the copolymer was repeated 100 times, the molding machine was stopped, the heater was turned off, the molding machine was restarted after 22 hours, and the injection molding of the polymer was repeated 100 times.
- Metal elution amount ( ⁇ g/m 2 ) [metal concentration in measurement solution (ng/g) ⁇ metal concentration in reference solution (ng/g)] ⁇ 50 mass % hydrofluoric acid amount (g) ⁇ 0.001 ( ⁇ g/ng)/total surface area of 4 injection molded bodies (m 2 )
- the injection molding of the copolymer was repeated 100 times, the molding machine was stopped, the heater was turned off, the molding machine was restarted after 22 hours, and the injection molding of the polymer was repeated 100 times.
- the obtained injection molded article was observed and evaluated according to the following criteria. The presence or absence of surface roughness was confirmed by touching the surface of the injection molded article. 3: The entire surface is smooth, and no flow marks are observed on the entire molded body. 2: Roughness is confirmed on the surface within a range of 1 cm from where the gate of the mold was located, but in other ranges. 1: Roughness is confirmed on the surface within 1 cm from the place where the mold gate was located, and the mold gate A flow mark can be seen within a range of 1 cm from where the was located, but in other ranges, the entire surface is smooth and no flow mark can be seen. 0: Where the mold gate was located Roughness is confirmed on the surface within a range of 4 cm from the
- MEK Metal ethyl ketone
- Experimental Examples 11-14 and Comparative Examples 10-12, 14 (Production of nut) In the same manner as in Experimental Example 1 except that the maximum temperature of the cylinder was changed to 390 ° C., the mold temperature was changed to 150 ° C., the injection speed was changed to 5 mm / s, and the mold was changed. A nut having the shape shown in FIG. 1 was made by injection molding the polymer.
- Comparative example 13 (Production of nut)
- the copolymer of Synthesis Example 5 is injection molded in the same manner as in Comparative Example 1, except that the maximum temperature of the cylinder is changed to 400°C, the mold temperature to 150°C, the injection speed to 5 mm/s, and the mold is changed.
- a nut having the shape shown in FIG. 1 was produced.
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Abstract
Description
本開示の射出成形体において、前記射出成形体からの50質量%フッ化水素酸への金属溶出量が、200μg/m2以下であることが好ましい。
本開示の射出成形体において、前記共重合体の前記フルオロ(アルキルビニルエーテル)単位が、パーフルオロ(プロピルビニルエーテル)単位であることが好ましい。
本開示の射出成形体において、前記共重合体のフルオロ(アルキルビニルエーテル)単位の含有量が、全単量体単位に対して、4.9~6.9質量%であることが好ましい。
本開示の射出成形体において、前記共重合体の372℃におけるメルトフローレートが、13.0~20.0g/10分であることが好ましい。
本開示の射出成形体において、前記共重合体の官能基数が、主鎖炭素数106個あたり、20個以下であることが好ましい。
本開示の射出成形体は、ナットであることが好ましい。
本開示の製造方法において、前記シリンダとして、Niメッキが施されたシリンダ、または、Ni基合金により形成されたシリンダを用い、前記スクリュとして、Ni基合金により形成され、先端にスミアヘッドが設けられたスクリュを用いることが好ましい。
CF2=CFO(CF2CFY1O)p-(CF2CF2CF2O)q-Rf (1)
(式中、Y1はFまたはCF3を表し、Rfは炭素数1~5のパーフルオロアルキル基を表す。pは0~5の整数を表し、qは0~5の整数を表す。)で表される単量体、および、一般式(2):
CFX=CXOCF2OR1 (2)
(式中、Xは、同一または異なり、H、FまたはCF3を表し、R1は、直鎖または分岐した、H、Cl、BrおよびIからなる群より選択される少なくとも1種の原子を1~2個含んでいてもよい炭素数が1~6のフルオロアルキル基、若しくは、H、Cl、BrおよびIからなる群より選択される少なくとも1種の原子を1~2個含んでいてもよい炭素数が5または6の環状フルオロアルキル基を表す。)で表される単量体からなる群より選択される少なくとも1種を挙げることができる。
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。
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。
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。
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。
純水を49.0L、パーフルオロシクロブタンを40.7kg、パーフルオロ(プロピルビニルエーテル)(PPVE)を1.61kg、メタノールを1.02kg、テトラフルオロエチレン(TFE)を0.64MPaまで圧入、ジ-sec-ブチルパーオキシジカーボネートの代わりにジ-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、PPVEをTFEの供給1kg毎に0.052kg追加、重合時間を18時間に変更した以外は、特開2020-97750号の実施例1に記載の方法と同様にして、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。
純水を49.0L、パーフルオロシクロブタンを40.7kg、パーフルオロ(プロピルビニルエーテル)(PPVE)を2.58kg、メタノールを2.24kg、テトラフルオロエチレン(TFE)を0.64MPaまで圧入、ジ-sec-ブチルパーオキシジカーボネートの代わりにジ-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、PPVEをTFEの供給1kg毎に0.071kg追加、重合時間を19時間に変更した以外は、特開2020-97750号の実施例1に記載の方法と同様にして、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。
純水を49.0L、パーフルオロシクロブタンを40.7kg、パーフルオロ(プロピルビニルエーテル)(PPVE)を1.90kg、メタノールを1.50kg、テトラフルオロエチレン(TFE)を0.64MPaまで圧入、ジ-sec-ブチルパーオキシジカーボネートの代わりにジ-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、PPVEをTFEの供給1kg毎に0.057kg追加、重合時間を18時間に変更した以外は、特開2020-97750号の実施例1に記載の方法と同様にして、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。
純水を49.0L、パーフルオロシクロブタンを40.7kg、パーフルオロ(プロピルビニルエーテル)(PPVE)を2.12kg、メタノールを1.80kg、テトラフルオロエチレン(TFE)を0.64MPaまで圧入、ジ-sec-ブチルパーオキシジカーボネートの代わりにジ-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、PPVEをTFEの供給1kg毎に0.062kg追加、重合時間を19時間に変更した以外は、特開2020-97750号の実施例1に記載の方法と同様にして、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。
純水を51.8L、パーフルオロシクロブタンを40.9kg、パーフルオロ(プロピルビニルエーテル)(PPVE)を2.75kg、メタノールを2.38kg、テトラフルオロエチレン(TFE)を0.64MPaまで圧入、ジ-sec-ブチルパーオキシジカーボネートの代わりにジ-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、PPVEをTFEの供給1kg毎に0.058kg追加、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ることに変更し、乾燥粉末43.3kgを得た以外は、特開2020-97750号の実施例1に記載の方法と同様にして、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。
純水を26.6L、パーフルオロ(プロピルビニルエーテル)(PPVE)を1.25kg、メタノールを2.17kg、テトラフルオロエチレン(TFE)を0.58MPaまで圧入、ジ-sec-ブチルパーオキシジカーボネートの代わりにジ-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0.044kg、PPVEをTFEの供給1kg毎に0.044kg追加、重合時間を8.5時間に変更した以外は、特開2020-97750号の実施例1に記載の方法と同様にして、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。
純水を26.6L、パーフルオロ(プロピルビニルエーテル)(PPVE)を1.32kg、メタノールを2.20kg、テトラフルオロエチレン(TFE)を0.58MPaまで圧入、ジ-sec-ブチルパーオキシジカーボネートの代わりにジ-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0.044kg、PPVEをTFEの供給1kg毎に0.046kg追加、重合時間を8.5時間に変更した以外は、特開2020-97750号の実施例1に記載の方法と同様にして、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。
純水を49.0L、パーフルオロシクロブタンを40.7kg、パーフルオロ(プロピルビニルエーテル)(PPVE)を1.90kg、メタノールを3.40kg、テトラフルオロエチレン(TFE)を0.64MPaまで圧入、ジ-sec-ブチルパーオキシジカーボネートの代わりにジ-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、PPVEをTFEの供給1kg毎に0.057kg追加、重合時間を19時間に変更した以外は、特開2020-97750号の実施例1に記載の方法と同様にして、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。
純水を51.8L、パーフルオロシクロブタンを40.9kg、パーフルオロ(プロピルビニルエーテル)(PPVE)を3.47kg、メタノールを3.28kg、テトラフルオロエチレン(TFE)を0.64MPaまで圧入、ジ-sec-ブチルパーオキシジカーボネートの代わりにジ-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0.026kg、PPVEをTFEの供給1kg毎に0.071kg追加、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ることに変更し、乾燥粉末43.8kgを得た以外は、特開2020-97750号の実施例1に記載の方法と同様にして、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。
射出成形機(住友重機械工業社製、SE50EV-A)を使用し、クラス10000のクリーンルーム内で成形を行った。射出成形機のスクリュとして、スクリュヘッドにスミアヘッドが設けられたスクリュを用い、射出成形機のスクリュおよびシリンダの材質はNi基合金であった。射出成形機のシリンダの最高温度を表4に記載のとおりとし、金型温度を200℃とし、射出速度を20mm/sとして、共重合体を射出成形し、シート状射出成形体(40mm×40mm×0.5mmt)を作製した。金型として、HPM38にNiめっきを施した金型(40mm×40mm×0.5mmt、4個取り、サイドゲート)を用いた。
射出成形機(住友重機械工業社製、SE50EV-A)を使用して成形を行った。射出成形機のスクリュとして、スクリュヘッド、逆止リングおよびシールリング(スクリュ3点セット)により構成されるスクリュ先端が設けられたスクリュを用い、射出成形機のスクリュおよびシリンダの材質はステンレスであり、表面にCrメッキが施されていた。射出成形機のシリンダの最高温度を表4に記載のとおりとし、金型温度を200℃とし、射出速度を20mm/sとして、共重合体を射出成形し、シート状射出成形体(40mm×40mm×0.5mmt)を作製した。金型として、HPM38製の金型(40mm×40mm×0.5mmt、4個取り、サイドゲート)を用いた。
フッ素イオン溶出量の測定には、199回目の射出成形により得られた射出成形体を用いた。セラミック製のはさみを用いて、得られた射出成形体のランナーから4個のシート状射出成形体(40mm×40mm×0.5mmt)を切り離した。4個のシート状射出成形体の全てを純水14gに浸漬させ、滅菌機で121℃、1時間加熱した後、得られた水から射出成形体を取り出し、残った水のフッ素イオン濃度をフッ素イオンメーターにて測定した。得られた測定値から、下記式にしたがって、射出成形体の表面積当たりのフッ素イオン溶出量を算出した。
フッ素イオン溶出量(μg/m2)=測定値(μg/g)×純水量(g)/4個の射出成形体の合計表面積(m2)
フッ素イオン溶出量の測定には、200回目の射出成形により得られた射出成形体を用いた。また、測定に用いる容器として、50質量%フッ化水素酸に7日間、25℃に浸漬後、超純水洗浄したPFA製容器を用いた。
金属溶出量(μg/m2)=[測定用溶液中の金属濃度(ng/g)-参照用溶液中の金属濃度(ng/g)]×50質量%フッ化水素酸量(g)×0.001(μg/ng)/4個の射出成形体の合計表面積(m2)
射出成形機(東芝機械社製、IS130FI)を使用し、クラス10000のクリーンルーム内で成形を行った。射出成形機のスクリュとして、スクリュヘッドにスミアヘッドが設けられたスクリュを用い、射出成形機のスクリュおよびシリンダの材質はNi基合金であった。射出成形機のシリンダの最高温度を390℃、金型温度を200℃、射出速度5mm/sとして、共重合体を射出成形し、シート状射出成形体(130mm×130mm×3mmt)を作製した。金型として、HPM38にNiメッキを施した金型(130mm×130mm×3mmt、サイドゲート、ゲートからの流動長が130mmを超える)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。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:表面全体が平滑であり、成形体全体にフローマークも観られない
2: 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が、それ以外の範囲は、表面全体が平滑であり、成形体全体にフローマークも観られない
1: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、かつ、金型のゲートが位置していた箇所から1cmの範囲内にフローマークが観られるが、それ以外の範囲は、表面全体が平滑であり、フローマークも観られない
0:金型のゲートが位置していた箇所から4cmの範囲内の表面に荒れが確認され、かつ、金型のゲートが位置していた箇所から4cmの範囲内にフローマークが観られる
オゾン発生装置(商品名:SGX-A11MN(改)、住友精機工業社製)で発生させたオゾンガス(オゾン/酸素=10/90容量%)をイオン交換水が入ったPFA製の容器に接続し、イオン交換水中にバブリングしてオゾンガスに水蒸気を添加した後、シート状射出成形体が入ったPFA製のセルに0.7リットル/分で室温にて通して試料を湿潤オゾンガスに曝露した。曝露を開始してから120日後に試料を取り出し、表面をイオン交換水で軽くすすいだ後、透過型光学顕微鏡を用いて倍率100倍で試料表面から深さ5~200μmの部分を観察し、標準スケールとともに撮影し、試料表面1mm2あたりの長さ10μm以上のクラックの数を測定し、以下の基準により評価した。
○:クラック数10個以下
△:クラック数10個超50個以下
×:クラック数50個超
シート状射出成形体を60℃で24時間おいた後で、射出成形体から試験片を作製した。試験カップ(透過面積7.065cm2)内に水を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。シート状試験片と水が接するようにして、温度95℃で60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/m2)を測定した。
水蒸気透過度(g/m2)=質量減少量(g)/透過面積(m2)
シート状射出成形体を60℃で24時間おいた後で、射出成形体から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MEK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MEKが接するようにして、温度60℃で60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、MEK透過度(g/m2)を求めた。
MEK透過度(g/m2)=質量減少量(g)/透過面積(m2)
シート状射出成形体を60℃で24時間おいた後で試験片として使用した。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)
シート状射出成形体を60℃で24時間おいた後で、射出成形体から80mm×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。95℃での荷重たわみ率が小さいシートは、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)
a2:95℃でのたわみ量(mm)
(ナットの作製)
シリンダの最高温度を390℃、金型温度を150℃、射出速度5mm/sに変更し、金型を変更した以外は実験例1と同様にして、合成例1~4,6~9の共重合体を射出成形することにより、図1に示す形状のナットを作製した。金型として、HPM38にNiめっきを施した金型(袋ナット、ネジ山部M(下部内径)=36mm、e(六角一辺)=46.2mm、S(外径)=40mm、D(上部内径)=27mm、H(高さ)=30mm、h(内部高さ)=24mm、1点サイドゲート)を用いた。
(ナットの作製)
シリンダの最高温度を400℃、金型温度を150℃、射出速度5mm/sに変更し、金型を変更した以外は比較例1と同様にして、合成例5の共重合体を射出成形することにより、図1に示す形状のナットを作製した。金型として、HPM38製の金型(袋ナット、ネジ山部M=36mm、e=46.2mm、S=40mm、D=27mm、H=30mm、h=24mm、1点サイドゲート)を用いた。
得られたナットのネジ山部の転写性を目視で確認した。
○:金型の形状が射出成形体に確実に転写されており、所望の形状のねじ山部が形成されている
×:金型の形状の一部が射出成形体に転写されておらず、所望の形状とは異なる形状のねじ山部が観られる
ナットの強度を測定するためにナット強度破壊試験を実施した。引張試験は、テンシロン万能試験機(ORIENTEC製 UCT-500)を使用し、円盤形状の上部治具をナットの天面に引っ掛け、ねじ形状を持つ下部治具をナットに差し込み、上部治具と下部治具の間を1mm、引張速度0.5mm/minにて引張試験を行い、引張試験中にナット上部を目視でクラックが発生した時点で引張試験を停止した。引張試験を停止した時の荷重(破断荷重)を測定し、以下の基準で評価した。
○:破断荷重440N以上
△:破断荷重430~440N
×:破断荷重430N以下
試料をシート状射出成形体からナットに変更した以外は、上記したオゾン暴露試験と同様にして、クラックの数を測定し、同じ基準により評価した。
Claims (11)
- テトラフルオロエチレン単位およびフルオロ(アルキルビニルエーテル)単位を含有する共重合体を含有する射出成形体であって、
前記共重合体のフルオロ(アルキルビニルエーテル)単位の含有量が、全単量体単位に対して、4.7~7.0質量%であり、
前記共重合体の372℃におけるメルトフローレートが、11.0~22.0g/10分であり、
前記共重合体の融点が、296~305℃であり、
前記射出成形体からの水へのフッ素イオン溶出量が、7500μg/m2以下である射出成形体。 - 前記射出成形体からの水へのフッ素イオン溶出量が、5500μg/m2以下である請求項1に記載の射出成形体。
- 前記射出成形体からの50質量%フッ化水素酸への金属溶出量が、200μg/m2以下である請求項1または2に記載の射出成形体。
- 前記共重合体の前記フルオロ(アルキルビニルエーテル)単位が、パーフルオロ(プロピルビニルエーテル)単位である請求項1~3のいずれかに記載の射出成形体。
- 前記共重合体の前記フルオロ(アルキルビニルエーテル)単位の含有量が、全単量体単位に対して、4.9~6.6質量%である請求項1~4のいずれかに記載の射出成形体。
- 前記共重合体の372℃におけるメルトフローレートが、13.0~20.0g/10分である請求項1~5のいずれかに記載の射出成形体。
- 前記共重合体の官能基数が、主鎖炭素数106個あたり、20個以下である請求項1~6のいずれかに記載の射出成形体。
- ナットである請求項1~7のいずれかに記載の射出成形体。
- 請求項1~8のいずれかに記載の射出成形体の製造方法であって、シリンダ、および、前記シリンダ内に収容されたスクリュを備える射出成形機を用いて、前記共重合体を射出成形することにより前記射出成形体を得る製造方法。
- 前記シリンダ内の前記共重合体の温度を、385~395℃に調整する請求項9に記載の製造方法。
- 前記シリンダとして、Niメッキが施されたシリンダ、または、Ni基合金により形成されたシリンダを用い、前記スクリュとして、Ni基合金により形成され、先端にスミアヘッドが設けられたスクリュを用いる請求項9または10に記載の製造方法。
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EP22759269.8A EP4299608A1 (en) | 2021-02-26 | 2022-01-31 | Injection-molded body and production method therefor |
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Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3945786A (en) * | 1973-07-25 | 1976-03-23 | Koehring Company | Injection molding apparatus for producing articles with a mottled appearance |
JPH08207106A (ja) * | 1994-12-13 | 1996-08-13 | Meiki Co Ltd | 射出成形機の分割型加熱筒及び加熱筒吊装置 |
WO2003048214A1 (fr) | 2001-12-04 | 2003-06-12 | Daikin Industries, Ltd. | Materiau de moulage destine a des articles resistant a l'ozone et articles moules par injection resistant a l'ozone |
JP2015147924A (ja) * | 2014-01-08 | 2015-08-20 | ダイキン工業株式会社 | 改質含フッ素共重合体及びフッ素樹脂成形品 |
JP2020029042A (ja) * | 2018-08-23 | 2020-02-27 | 三井・ケマーズ フロロプロダクツ株式会社 | 熱溶融性フッ素樹脂射出成形品 |
JP2020097750A (ja) | 2018-03-27 | 2020-06-25 | ダイキン工業株式会社 | 成形材料の製造方法および成形品の製造方法 |
WO2020204163A1 (ja) * | 2019-04-05 | 2020-10-08 | ダイキン工業株式会社 | 電気化学デバイス用被圧縮部材 |
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- 2022-02-11 TW TW111105085A patent/TW202244081A/zh unknown
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Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3945786A (en) * | 1973-07-25 | 1976-03-23 | Koehring Company | Injection molding apparatus for producing articles with a mottled appearance |
JPH08207106A (ja) * | 1994-12-13 | 1996-08-13 | Meiki Co Ltd | 射出成形機の分割型加熱筒及び加熱筒吊装置 |
WO2003048214A1 (fr) | 2001-12-04 | 2003-06-12 | Daikin Industries, Ltd. | Materiau de moulage destine a des articles resistant a l'ozone et articles moules par injection resistant a l'ozone |
JP2015147924A (ja) * | 2014-01-08 | 2015-08-20 | ダイキン工業株式会社 | 改質含フッ素共重合体及びフッ素樹脂成形品 |
JP2020097750A (ja) | 2018-03-27 | 2020-06-25 | ダイキン工業株式会社 | 成形材料の製造方法および成形品の製造方法 |
JP2020029042A (ja) * | 2018-08-23 | 2020-02-27 | 三井・ケマーズ フロロプロダクツ株式会社 | 熱溶融性フッ素樹脂射出成形品 |
WO2020204163A1 (ja) * | 2019-04-05 | 2020-10-08 | ダイキン工業株式会社 | 電気化学デバイス用被圧縮部材 |
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JP2022132109A (ja) | 2022-09-07 |
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