WO2007119834A1 - 含フッ素エラストマー組成物および含フッ素ゴム成形品 - Google Patents
含フッ素エラストマー組成物および含フッ素ゴム成形品 Download PDFInfo
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- WO2007119834A1 WO2007119834A1 PCT/JP2007/058204 JP2007058204W WO2007119834A1 WO 2007119834 A1 WO2007119834 A1 WO 2007119834A1 JP 2007058204 W JP2007058204 W JP 2007058204W WO 2007119834 A1 WO2007119834 A1 WO 2007119834A1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/12—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/14—Copolymers of propene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/12—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C08L27/18—Homopolymers or copolymers or tetrafluoroethene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L29/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical; Compositions of hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Compositions of derivatives of such polymers
- C08L29/10—Homopolymers or copolymers of unsaturated ethers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/14—Peroxides
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
Definitions
- the present invention relates to a fluorine-containing elastomer composition capable of obtaining a fluorine-containing rubber molded article having excellent heat resistance.
- fluororubbers vinylidene fluoride Z-hexafluoropropylene copolymer, tetraalkyl vinyl ether) copolymer, and the like are known.
- Tetrafluoroethylene Z perfluoro (alkyl butyl ether) copolymer is called a perfluoroelastomer, and is particularly excellent in chemical resistance and plasma resistance.
- Tetrafluoroethylene Z-propylene copolymer and vinylidene fluoride Z-hexafluoropropylene copolymer are excellent in chemical resistance.
- tetrafluoroethylene z-propylene copolymer is excellent in alkali resistance and amine resistance.
- rubber properties can be improved by using polyfunctional organic compounds such as triallyl cyanurate, triallyl isocyanurate, and trimethallyl isocyanurate as co-crosslinking agents. It is known to improve.
- the polyfunctional organic compound is a hydrocarbon compound. It cannot be made sufficiently high due to the influence of the heat-resistant temperature of the functional organic compound (see, for example, Patent Document 3).
- Fluoro rubber molded products are known as fluorine-containing copolymers in which a cyano group-containing monomer is copolymerized and the cyano group in the fluorine-containing copolymer is reacted to form a triazine ring. (For example, see Patent Document 4).
- the triazine ring formation reaction has a slow reaction rate, and the crosslinking reaction takes time. There was a problem of power.
- a crosslinkable fluorine-containing copolymer that does not contain a triazine ring and has a high crosslinking reaction rate
- a method of using fluorine-containing diolefin is disclosed (for example, see Patent Document 3). However, this method requires precise adjustment during polymerization.
- the fluorine-containing copolymer used in this fluorine-containing copolymer composition has a melting point, is a so-called resin, has a glass transition temperature of 15 ° C. or less, and does not have a melting point.
- Fluorine-containing elastomer yarns and products using fluorine-containing elastomers are known.
- Patent Document 1 Japanese Patent No. 3508136
- Patent Document 2 Japanese Patent No. 2888972
- Patent Document 3 JP-A-8-12726
- Patent Document 4 JP-A-49-61119
- Patent Document 5 Japanese Patent Application Laid-Open No. 2002-114884
- the object of the present invention is to provide a fluorine-containing elastomer composition having excellent crosslinkability, good moldability and difficult to scorch, and obtained by crosslinking the fluorine-containing elastomer composition.
- An object of the present invention is to provide a fluorine-containing rubber molded article which is excellent in heat resistance and compression set properties and excellent in basic physical properties such as tensile strength and tensile elongation.
- the present invention has the following configuration.
- R f is a perfluorinated alkyl group having 1 to 20 carbon atoms which may have an etheric oxygen atom
- a fluorine-containing copolymer having a repeating unit based on [1] The fluorine-containing elastomer composition as described.
- the content of the (c) organic peroxide is 0.05 to L0 parts by mass with respect to 100 parts by mass of the total amount of the components (a) and (b) [1] to [5]
- the fluorine-containing elastomer composition according to any one of [5].
- a crosslinking aid is contained, and the content is 0.1 to L0 parts by mass with respect to 100 parts by mass of the total amount of component (a) and component (b) [1] to [6]
- the fluorine-containing elastomer composition of the present invention has excellent crosslinkability, good moldability, and is difficult to scorch.
- a fluorine-containing rubber molded product obtained by crosslinking the fluorine-containing elastomer composition is excellent in heat resistance and compression set characteristics, and excellent in basic physical properties such as tensile strength and tensile elongation.
- the component (a) used in the fluorine-containing elastomer composition of the present invention has a glass transition temperature of 15 ° C or lower and a hydrogen atom content of 0.1% by mass or lower. Last person.
- -Containing fluorine-containing copolymers having repeating units can be preferably used.
- CF CF-0-0-R f may be used alone or in combination of two or more. CF is preferred
- CF CF-0-CF.
- the preferable range of the carbon atom number of Rf is 1-20, and a more preferable range is 1-8.
- CF- O-repeating units 30 ⁇ 80Z70 ⁇ 20 based on R f (molar ratio) is preferable. Within this range, the rubber properties are excellent.
- the perfluoroelastomer it is preferable to use one that does not substantially contain a hydrogen atom, but the perfluoroelastomer obtained by using a chain transfer agent containing a small amount of hydrogen atoms in a comonomer is preferable. It is also possible to use an elastomer.
- Chain transfer agents containing hydrogen atoms include chain or cyclic saturated hydrocarbons such as methane, ethane, propane, butane, pentane, hexane, and cyclohexane, and alcohols such as methanol, ethanol, and propanol.
- mercaptans such as tert-dodecyl mercaptan, n-dodecyl mercaptan, and n-octadecyl mercaptan.
- chain transfer agents The above can be used.
- Examples include Br.
- One or more comonomer containing a hydrogen atom can be used. However, when the hydrogen atom content increases, the performance of perfluoro rubber such as heat resistance and chemical resistance deteriorates.
- the hydrogen atom content in the perfluoroelastomer used in the present invention is 0.1% by mass or less, preferably 0.07% by mass or less, more preferably 0.05% by mass or less. is there.
- the perfluoroelastomer used in the present invention is more preferably an iodine-containing perfluoroelastomer, which is preferred to be an iodine and / or bromine-containing perfluoroelastomer.
- TFE and CF CF O— R f
- polymerization may be performed using an iodine and / or bromine-containing monomer, or IR f2 — 1 (wherein R i2 is a perfluorocarbon having 1 to 8 carbon atoms which may have an etheric oxygen atom. It is possible to use iodine and Z or bromine-containing perfluoroelastomers obtained by copolymerizing the above monomers in the presence of a compound represented by).
- I—R f2 —I include Jodhodifluoromethane, 1,2-Jord Novoleoloethan, 1,3 Jodhpur Noreole propane, 1,4-Jodoperfuroleobutane. 1, 5 Jodhpur Fluoropentane, 1, 6 Jodhpur Fluorohexane, 1, 7 Jodhpur Fluoroheptane, 1, 8 Jodhpur Fluorooctane, etc. Of these, 1,4-Jodoperfluorobutane and 1,6-Jodoperfluorobutane are preferred, and 1,4-Jodoperfluorobutane is particularly preferred.
- the content of iodine and / or bromine in the perfluoroelastomer used in the present invention is not particularly limited, but 0.1 to 1.5 mass% is preferable 0.1 to 1.0 mass. % Is more preferable 0.2 to 1.0% by mass is particularly preferable. Within this range, a composition can be obtained that gives a crosslinked rubber having excellent rubber properties and compression set characteristics.
- the mu-one viscosity at 100 ° C according to JIS K6300 of the perfluoroelastomer used in the present invention is 1 to: L00 is preferably 5 to 90 force, more preferably 5 to 80 is more preferred 5 to less than 70 is particularly preferred.
- Mu-one viscosity is a measure of various average molecular weights. Larger values indicate higher molecular weights, and smaller values indicate lower molecular weights. If the viscosity is high, the blending operation tends to be difficult, but if it is within this range, blending is easy and the rubber properties after crosslinking are good.
- the glass transition temperature (hereinafter referred to as Tg) of the perfluoroelastomer used in the present invention is 15 ° C or less, preferably ⁇ 50 to 10 ° C, more preferably ⁇ 50 to 0 ° C. Most preferred-50 to 1-3 ° C.
- the method for producing the component (a) used in the present invention is not particularly limited, but emulsion polymerization, solution polymerization and the like can be preferably used, and emulsion polymerization is particularly preferable.
- the emulsion used in emulsion polymerization include known hydrocarbon emulsifiers such as sodium lauryl sulfate sodium dodecylbenzenesulfonate, ammonium perfluorooctanoate, ammonium perfluorohexamate, CF—O— CF —O—CF —COONH, CF—0— CF (C
- Fluorine-containing emulsifiers such as F) -CF-0-CF (CF) -COONH can be used.
- a fluorine-containing emulsifier is preferable because of its stability during polymerization.
- the perfluoroelastomer component (a) can be used alone or in combination of two or more.
- the component (b) used in the fluorine-containing elastomer fiber composition of the present invention is a fluorine-containing copolymer having a repeating unit based on a hydrogen-containing monomer, and has a glass transition temperature of 15 ° C or lower. And a fluorine-containing elastomer having a hydrogen atom content of 0.3% by mass or more. This fluorine-containing elastomer is based on repeating units based on TFE and propylene.
- Fluorine-containing copolymer having repeating unit as essential component and fluorinated copolymer having repeating unit based on vinylidene fluoride and repeating unit based on hexafluoropropylene as essential component 1
- fluorine-containing elastomers are preferably listed.
- Examples of the hydrogen-containing monomer in component (b) include alkenes such as ethylene, propylene, and butene, gens such as butadiene and hexagen, fluorinated bur, vinylidene fluoride, and trifluoride.
- alkenes such as ethylene, propylene, and butene
- gens such as butadiene and hexagen
- fluorinated bur vinylidene fluoride
- alkenes and partially fluorinated alkenes are preferred.
- Ethylene, propylene, and vinylidene fluoride are more preferred.
- f is a perfluoroalkyl group having 1 to 20 carbon atoms which may have an etheric oxygen atom.
- TFEZ propylene copolymer examples include TFEZ propylene copolymer and TFEZ propylene.
- Lene Z-Bidylene fluoride-copolymer, TFEZ propylene ZCF CF-0-CF copolymer
- TFEZ propylene ZCF CF-0-C F copolymer
- TFEZ propylene ZCH CH—CF copolymer
- a propylene copolymer, a TFEZ propylene Z-vinylidene fluoride copolymer, and a TFEZ propylene ZCH 2 —CH ⁇ CH—COO—CH ⁇ CH copolymer are preferred.
- the crosslinked rubber is excellent in the properties of the crosslinked rubber, and excellent in heat resistance and chemical resistance, low temperature characteristics, and rubber elasticity.
- TFEZ propylene ZCF CF— 0- CF copolymer, repeated based on TFE
- TFEZ Propylene ZCF CF-0-C Repetition based on TFE in F copolymer
- TFEZ propylene ZCH CH— O— CH copolymer
- TFEZ propylene ZCH CH-CF copolymer is a repeating unit based on TFE
- the vinylidene fluoride-hexafluoropropylene-based copolymer includes vinylidene fluoride-hexafluoropropylene copolymer, TFEZ-vinylidene fluoride-hexafluoropropylene.
- a propylene copolymer can be illustrated.
- the crosslinked rubber has excellent physical properties of the crosslinked rubber, heat resistance and chemical resistance, and the above-mentioned vinylidene fluoride Z-hexafluoropropylene copolymer. Good low temperature characteristics and rubber elasticity.
- repeat unit based on TFE Z repeat unit based on vinylidene fluoride Z repeat unit based on hexafluoropropylene 20-40Z20-40Z20-40 (molar ratio).
- the mu-one viscosity at 100 ° C according to JIS K6300 is preferably 1 to 200, more preferably 5 to 190, and particularly preferably 10 to 180. preferable.
- the Tg of the fluorine-containing elastomer (b) is 15 ° C or less, preferably ⁇ 30 to 10 ° C, more preferably 30 to 5 ° C, and most preferably 30 to 0 ° C. .
- the method for producing the component (b) is not particularly limited, but emulsion polymerization, solution polymerization and the like can be preferably used, and emulsion polymerization is particularly preferable.
- emulsifiers used in emulsion polymerization include hydrocarbon emulsifiers such as the well-known sodium lauryl sulfate sodium dodecylbenzene sulfonate, ammonium perfluorooctanoate, ammonium perfluorohexamate, CF— O— CFO— CF— COONH, CFO— CF (CF) CF— O— Fluorine-containing emulsions such as CF (CF) —COONH can be used.
- the fluorine-containing elastomer of component (b) can be used alone or in combination of two or more.
- the mixing method of the above component (a) and component (b) is not particularly limited! However, a method of mixing solid (a) component and component (b) isolated after polymerization, Mix one or more of the aqueous dispersions of component a) and one or more of the aqueous dispersion of component (b), and then coagulate and isolate them in the state where components (a) and (b) are mixed. The method of doing etc. can be illustrated.
- the method of mixing the solid of component (a) and the solid of component (b) isolated is not particularly limited! /, But the method of mixing on two rolls or in the kneader The method of mixing with can be preferably used.
- the method for aggregating the aqueous dispersion of component (a) and the aqueous dispersion of component (b) is not particularly limited! However, there are methods for changing the pH of the aqueous dispersion, methods for mechanically agglomerating, and metal salts. A method of adding salt to pray can be preferably used.
- the fluorine-containing elastomer composition of the present invention contains the organic peroxide as the component (c) as necessary, but it is preferable to contain it.
- the organic peroxide of component (c) is not particularly limited, but it is a temperature at which half of the organic peroxide is decomposed in 1 minute. 1 minute half-life temperature force S 150 to 250 ° C organic peroxide An oxide is preferred. 150 to 200 ° C is more preferred.
- tert butyl peroxide di tert butyl peroxide, tert butyl tamil peroxide, dicumyl peroxide, a, ⁇ -bis (tert butyl peroxy) -p diisopropylbenzene, 2,5 dimethyl 2,5 di (tert butyl peroxide).
- the content of the organic peroxide in component (c) is 0.05 to the total amount of 100 parts by mass of component (a) and component (b) in the fluorine-containing elastomer composition of the present invention.
- a composition giving a fluororubber molded article which is a crosslinked rubber having excellent heat resistance, rubber physical properties and compression set properties can be obtained.
- the fluorine-containing elastomer yarn and composition of the present invention may contain a scorch retarder as component (d) as necessary.
- a scorch retarder include bisphenol A, bisphenol AF, phenol, cresol, p-phenol, m-phenol, o-phenol, allylic phenol, p-hydroxybenzoic acid, p-hydroxybenzoic acid, and other phenols.
- quinones such as hydroquinone, hydroquinone monoethyl ether, hydroquinone monomethyl ether, 2, 4 di (3-isopropylphenol) mono 4-methyl 1-pentene, 2, 4 di (4-isopropyl) 4) -methyl 1-pentene, 2— (3—isopropyl phenol) 4— (4—isopropyl pyridine) 4—methyl 1—pentene, 2— (4—isopropyl phenol) 4 — (3-Isopropylphenol) 1-Methyl 1-pentene, 2, 4 Di (3-methylphenol) — 4-Methyl-1-pentene Emissions, 2, 4-di (4-Mechirufue - Le) - 4-methyl-1-pentene, 2, 4 Jifue - and the like can be exemplified Lou 4-methyl-1-pentene etc. ⁇ - methylstyrene da timer One class.
- phenolic hydroxyl group-containing compounds and ⁇ -methylstyrene dimers are preferred, ⁇ -phenolphenol, 2,4-diphenol and 4-methyl-1-pentene are more preferred. -Lufenol is particularly preferred.
- One or more scorch retarders as component (d) can be used.
- the content of the scorch retarder as the component (d) is preferably 0.05 to 3 parts by mass and more preferably 0.05 to 1 part by mass with respect to 100 parts by mass of the perfluoroelastomer.
- crosslinking aid examples include triarinoreocyanurate, triarinoleisocyanurate, trimethalinoleisocyanurate, 1, 3, 5-triatallyloylhexahydro-1,3,5-triazine, Triallyl trimellitate, m-phen-diamine bismaleimide, p-quinone diximes, p, p, dibenzoinolequinone diximes, dipropargyl terephthalate, diaryl phthalate, N, N ', N Examples include butyl group-containing siloxane oligomers such as '', N '' -tetraaryl terephthalamide, polymethylvinylsiloxane, and polymethylphenylsiloxane.
- triallyl isocyanurate is preferred, which is preferably triallyl cyanurate, triallyl isocyanurate, or trimethallyl isocyanurate.
- the content of the crosslinking aid is preferably 0.1 to 0.5 parts by mass, more preferably 0.5 to 5 parts by mass with respect to 100 parts by mass of the total amount of the components (a) and (b). Within this range, cross-linked properties with a balance between strength and elongation can be obtained.
- a metal oxide may be contained as necessary.
- the perfluoroelastomer is a bromine-containing perfluoroelastomer
- the cross-linking reaction can proceed rapidly and reliably by containing a metal oxide.
- the metal oxide divalent metal oxides such as magnesium oxide, calcium oxide, zinc oxide, lead oxide and the like are preferable.
- the content of the metal oxide is preferably 0.1 to 10 parts by mass, more preferably 0.5 to 5 parts by mass with respect to 100 parts by mass of the total amount of the components (a) and (b). Within this range, crosslinked physical properties excellent in rubber physical properties and compression set properties can be obtained.
- the fluorine-containing elastomer composition of the present invention may contain a pigment for coloring, a filler, a reinforcing agent, a vulcanization accelerator, and the like.
- a pigment for coloring elastomer
- Commonly used pigments, fillers, and reinforcing agents include carbon black, titanium oxide, silicon dioxide, clay, talc, poly TFE, polyvinylidene fluoride, polyfluoride bur, polychlorotrifluoroethylene, TFEZ ethylene Examples thereof include a copolymer, a TFEZ propylene copolymer, and a TFEZ vinylidene fluoride copolymer.
- the content of the pigment is preferably 0.1 to 50 parts by mass with respect to 100 parts by mass of the total amount of the components (a) and (b).
- the filler content should be 100 parts by mass of the total amount of component (a) and component (b).
- the amount is preferably 1 to 100 parts by mass.
- the content of the reinforcing agent is preferably 1 to: LOO parts by mass with respect to 100 parts by mass of the total amount of the components (a) and (b).
- Examples of the vulcanization accelerator include sodium stearate and zinc stearate.
- the content of the vulcanization accelerator is preferably 0.01 to L0 parts by mass, more preferably 0.1 to 5 parts by mass with respect to 100 parts by mass of the total amount of the components (a) and (b).
- the fluorine-containing elastomer composition of the present invention is obtained by mixing the above-mentioned components.
- the mixing method can be obtained by kneading with a two-roll roll, a kneader, a Banbury mixer, etc., to which various mixing methods can be applied. Good. If the heat generation is intense during kneading, it is preferable to cool the kneading machine such as a roll.
- the kneading temperature is preferably 60 ° C or less, more preferably 50 ° C or less.
- the lower limit of the kneading temperature is not particularly limited, but is usually 20 ° C or higher.
- the fluorine-containing rubber molded product of the present invention comprises a perfluorinated elastomer (a) and a fluorine-containing elastomer (b) as essential components and, if necessary, a fluorine-containing resin containing an organic peroxide (c). It is obtained by crosslinking the lastomer composition.
- the molding may be performed simultaneously with the crosslinking or may be performed before the crosslinking.
- the molding method is not particularly limited, and examples thereof include various molding methods such as pressure molding, compression molding, extrusion molding, and injection molding.
- the crosslinking reaction is preferably performed at 150 to 300 ° C. If the crosslinking is carried out within this range, a fluorine-containing rubber product having excellent rubber properties and compression set characteristics can be obtained.
- the crosslinking reaction is usually carried out by combining a primary crosslinking reaction at a relatively low temperature and a secondary crosslinking reaction at a relatively high temperature.
- the primary crosslinking reaction temperature is usually preferably 150 to 200 ° C.
- the secondary cross-linking reaction temperature is usually preferably 200 to 300 ° C, more preferably 220 to 290 ° C, and particularly preferably 230 to 280 ° C. What is necessary is just to select bridge
- primary crosslinking is performed for 3 to 60 minutes in a hot press at 150 to 200 ° C, and 1 to 24 hours in an oven at 200 to 300 ° C. It is preferable to perform the secondary crosslinking.
- the compression set measured according to JIS K6301 is preferably less than 25, more preferably less than 23.5.
- the fluorine-containing rubber product of the present invention has an absolute value of 20% or less of the rate of change in tensile strength after a 200-hour heat test at 250 ° C for tensile strength and elongation measured according to JIS K6251.
- the absolute value of the rate of change in elongation has a heat resistance of 10% or less.
- TAIC triallyl isocyanurate
- 1,3-bis (tert-butylperoxyisopropyl) benzene made by Yakuyaku Akuzo
- sodium stearate 1 part by weight of sodium stearate as an additive in two rolls.
- This fluorine-containing elastomer composition was subjected to primary crosslinking by hot pressing at 170 ° C. for 20 minutes and further subjected to secondary crosslinking at 250 ° C. for 4 hours to obtain a crosslinked fluorine-containing rubber sheet having a thickness of 2 mm.
- This fluororubber sheet was subjected to normal physical properties, compression set measurement, and heat resistance test. The results are shown in Table 1.
- This fluorine-containing elastomer composition was subjected to primary crosslinking by hot pressing at 170 ° C. for 20 minutes, and then secondary crosslinked at 250 ° C. for 4 hours to obtain a crosslinked fluorine-containing rubber sheet having a thickness of 2 mm.
- This fluororubber sheet was subjected to normal properties, compression set measurement, and heat resistance test. The results are shown in Table 1.
- Nitrogen elastomer 50 80 20 0 100 Carbon black 20 25 25 20 25
- the fluorine-containing elastomer composition and fluorine-containing rubber molded product of the present invention are used for O-rings, sheets, gaskets, oil seals, diaphragms, and V-rings. It can also be applied to applications such as semiconductor device sealing materials, chemical-resistant sealing materials, paints, and wire coating materials. It should be noted that the entire contents of the specification, claims and abstract of the Japanese Patent Application No. 2006-115359 filed on April 19, 2006 are cited here as the disclosure of the specification of the present invention. Incorporated.
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Abstract
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Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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EP07741640A EP2009054A4 (en) | 2006-04-19 | 2007-04-13 | FLUORO-ELASTOMERIC COMPOSITION AND MOLDED FLUORO-RUBBER ARTICLE |
JP2008511012A JPWO2007119834A1 (ja) | 2006-04-19 | 2007-04-13 | 含フッ素エラストマー組成物および含フッ素ゴム成形品 |
US12/254,183 US20090054593A1 (en) | 2006-04-19 | 2008-10-20 | Fluoroelastomer composition and molded fluororubber article |
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JP2006115359 | 2006-04-19 | ||
JP2006-115359 | 2006-04-19 |
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US12/254,183 Continuation US20090054593A1 (en) | 2006-04-19 | 2008-10-20 | Fluoroelastomer composition and molded fluororubber article |
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WO2007119834A1 true WO2007119834A1 (ja) | 2007-10-25 |
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US (1) | US20090054593A1 (ja) |
EP (1) | EP2009054A4 (ja) |
JP (1) | JPWO2007119834A1 (ja) |
KR (1) | KR20090008236A (ja) |
CN (1) | CN101426851A (ja) |
RU (1) | RU2008145588A (ja) |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2258733A1 (en) * | 2008-03-28 | 2010-12-08 | Asahi Glass Company, Limited | Fluorine-containing elastic copolymer and method for producing the same |
KR20100137505A (ko) * | 2008-03-18 | 2010-12-30 | 닛폰 바루카 고교 가부시키가이샤 | 내크랙성 실재를 형성 가능한 불소고무 조성물 및 그 조성물로부터 얻어지는 내크랙성 실재 |
US20140044974A1 (en) * | 2008-03-27 | 2014-02-13 | Greene, Tweed Of Delaware, Inc. | Inert Substrate-Bonded Fluoroelastomer Components and Related Methods |
US10005888B2 (en) | 2014-03-25 | 2018-06-26 | Asahi Glass Company, Limited | Fluororubber molded article |
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CN105218985B (zh) * | 2015-10-28 | 2017-07-11 | 湖北派克密封件有限公司 | 一种耐高温高压耐氢氟酸的氟橡胶及其制备方法 |
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KR101640953B1 (ko) | 2008-03-18 | 2016-07-19 | 닛폰 바루카 고교 가부시키가이샤 | 내크랙성 실재를 형성 가능한 불소고무 조성물 및 그 조성물로부터 얻어지는 내크랙성 실재 |
EP2824144A3 (en) * | 2008-03-18 | 2015-02-11 | Nippon Valqua Industries, Ltd. | Fluorine rubber composition capable of forming crack-resistant sealing material and crack-resistant sealing material obtained from the composition |
EP2272911A1 (en) * | 2008-03-18 | 2011-01-12 | Nippon Valqua Industries, Ltd. | Fluorine rubber composition capable of forming crack-resistant sealing material and crack-resistant sealing material obtained from the composition |
EP2272911A4 (en) * | 2008-03-18 | 2014-04-30 | Nihon Valqua Kogyo Kk | FLUOROUS COMPOSITION COMPRISED FOR THE FORMATION OF AN RIP-RESISTANT SEALING MATERIAL AND RIP-RESISTANT SEALING MATERIAL OBTAINED FROM THE COMPOSITION |
KR20100137505A (ko) * | 2008-03-18 | 2010-12-30 | 닛폰 바루카 고교 가부시키가이샤 | 내크랙성 실재를 형성 가능한 불소고무 조성물 및 그 조성물로부터 얻어지는 내크랙성 실재 |
US20140044974A1 (en) * | 2008-03-27 | 2014-02-13 | Greene, Tweed Of Delaware, Inc. | Inert Substrate-Bonded Fluoroelastomer Components and Related Methods |
CN101981067B (zh) * | 2008-03-28 | 2013-03-27 | 旭硝子株式会社 | 含氟弹性共聚物及制造方法 |
EP2258733A4 (en) * | 2008-03-28 | 2011-03-02 | Asahi Glass Co Ltd | FLUOROUS ELASTIC COPOLYMER AND METHOD OF MANUFACTURING THEREOF |
EP2258733A1 (en) * | 2008-03-28 | 2010-12-08 | Asahi Glass Company, Limited | Fluorine-containing elastic copolymer and method for producing the same |
US8716419B2 (en) | 2008-03-28 | 2014-05-06 | Asahi Glass Company, Limited | Fluorinated elastic copolymer and production process |
US10005888B2 (en) | 2014-03-25 | 2018-06-26 | Asahi Glass Company, Limited | Fluororubber molded article |
JP2022010304A (ja) * | 2018-07-30 | 2022-01-14 | ダイキン工業株式会社 | 含フッ素ポリマーを含有する組成物および成形品 |
JP7206519B2 (ja) | 2018-07-30 | 2023-01-18 | ダイキン工業株式会社 | 含フッ素ポリマーを含有する組成物および成形品 |
WO2024128265A1 (ja) * | 2022-12-16 | 2024-06-20 | Agc株式会社 | 含フッ素重合体の製造方法、水性分散液及び粒子 |
Also Published As
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RU2008145588A (ru) | 2010-05-27 |
JPWO2007119834A1 (ja) | 2009-08-27 |
US20090054593A1 (en) | 2009-02-26 |
CN101426851A (zh) | 2009-05-06 |
KR20090008236A (ko) | 2009-01-21 |
EP2009054A1 (en) | 2008-12-31 |
TW200806732A (en) | 2008-02-01 |
EP2009054A4 (en) | 2010-09-29 |
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