WO2006095857A1 - クロロトリフルオロエチレン共重合体含有積層体及びその製造方法 - Google Patents
クロロトリフルオロエチレン共重合体含有積層体及びその製造方法 Download PDFInfo
- Publication number
- WO2006095857A1 WO2006095857A1 PCT/JP2006/304759 JP2006304759W WO2006095857A1 WO 2006095857 A1 WO2006095857 A1 WO 2006095857A1 JP 2006304759 W JP2006304759 W JP 2006304759W WO 2006095857 A1 WO2006095857 A1 WO 2006095857A1
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- WIPO (PCT)
- Prior art keywords
- layer
- copolymer
- flow path
- ctfe
- black
- Prior art date
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- 229920001577 copolymer Polymers 0.000 title claims abstract description 177
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
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- 239000000463 material Substances 0.000 claims abstract description 59
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims abstract description 46
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- 238000000465 moulding Methods 0.000 claims description 28
- 238000001125 extrusion Methods 0.000 claims description 12
- 238000010030 laminating Methods 0.000 claims description 10
- 125000004432 carbon atom Chemical group C* 0.000 claims description 7
- MIZLGWKEZAPEFJ-UHFFFAOYSA-N 1,1,2-trifluoroethene Chemical group FC=C(F)F MIZLGWKEZAPEFJ-UHFFFAOYSA-N 0.000 claims description 5
- 238000012546 transfer Methods 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
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- 239000005977 Ethylene Substances 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- PBLYVZBCFDFCTO-UHFFFAOYSA-N butyl hypofluorite Chemical compound CCCCOF PBLYVZBCFDFCTO-UHFFFAOYSA-N 0.000 claims 1
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- 229920001897 terpolymer Polymers 0.000 claims 1
- 239000000126 substance Substances 0.000 abstract description 35
- UUAGAQFQZIEFAH-UHFFFAOYSA-N chlorotrifluoroethylene Chemical group FC(F)=C(F)Cl UUAGAQFQZIEFAH-UHFFFAOYSA-N 0.000 abstract description 27
- 230000006866 deterioration Effects 0.000 abstract description 6
- 239000010410 layer Substances 0.000 description 314
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 37
- 239000000178 monomer Substances 0.000 description 24
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 21
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- 230000000052 comparative effect Effects 0.000 description 11
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- 238000012360 testing method Methods 0.000 description 9
- KHXKESCWFMPTFT-UHFFFAOYSA-N 1,1,1,2,2,3,3-heptafluoro-3-(1,2,2-trifluoroethenoxy)propane Chemical compound FC(F)=C(F)OC(F)(F)C(F)(F)C(F)(F)F KHXKESCWFMPTFT-UHFFFAOYSA-N 0.000 description 8
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- BLTXWCKMNMYXEA-UHFFFAOYSA-N 1,1,2-trifluoro-2-(trifluoromethoxy)ethene Chemical compound FC(F)=C(F)OC(F)(F)F BLTXWCKMNMYXEA-UHFFFAOYSA-N 0.000 description 6
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 6
- 229910001873 dinitrogen Inorganic materials 0.000 description 6
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- UZKWTJUDCOPSNM-UHFFFAOYSA-N 1-ethenoxybutane Chemical compound CCCCOC=C UZKWTJUDCOPSNM-UHFFFAOYSA-N 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- FJKIXWOMBXYWOQ-UHFFFAOYSA-N ethenoxyethane Chemical compound CCOC=C FJKIXWOMBXYWOQ-UHFFFAOYSA-N 0.000 description 4
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- YGZQJYIITOMTMD-UHFFFAOYSA-N 1-propoxybutane Chemical compound CCCCOCCC YGZQJYIITOMTMD-UHFFFAOYSA-N 0.000 description 3
- GYIYNNBYDCPYEG-UHFFFAOYSA-N 2-carboxyoxycarbonyloxyacetic acid Chemical compound OC(=O)COC(=O)OC(O)=O GYIYNNBYDCPYEG-UHFFFAOYSA-N 0.000 description 3
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- BCCOBQSFUDVTJQ-UHFFFAOYSA-N octafluorocyclobutane Chemical compound FC1(F)C(F)(F)C(F)(F)C1(F)F BCCOBQSFUDVTJQ-UHFFFAOYSA-N 0.000 description 3
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- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
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- BXKDSDJJOVIHMX-UHFFFAOYSA-N edrophonium chloride Chemical compound [Cl-].CC[N+](C)(C)C1=CC=CC(O)=C1 BXKDSDJJOVIHMX-UHFFFAOYSA-N 0.000 description 2
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Classifications
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/25—Solid
- B29K2105/253—Preform
- B29K2105/256—Sheets, plates, blanks or films
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- 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
- B29L2009/00—Layered products
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- 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
- B29L2023/00—Tubular articles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
- Y10T428/139—Open-ended, self-supporting conduit, cylinder, or tube-type article
- Y10T428/1393—Multilayer [continuous layer]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/3154—Of fluorinated addition polymer from unsaturated monomers
- Y10T428/31544—Addition polymer is perhalogenated
Definitions
- the present invention relates to a black-mouthed trifluoroethylene copolymer-containing laminate and a method for producing the same.
- Tetrafluoroethylene Z perfluoro butyl ether copolymer [PFA] or tetrafluoroethylene Z hexafluoropropylene [FEP] molded products such as tubes have chemical resistance, Since it is difficult to contaminate the liquid that circulates in the interior, pipe materials for transferring high-purity liquids have been used for lining materials for storage tanks, especially pipe materials for semiconductor manufacturing equipment. However, the PFA tube and the FEP tube had a problem that the chemical permeability was large.
- PCTFE polychloroethylene
- Patent Document 1 Japanese Patent Laid-Open No. 9-137900
- the object of the present invention is to suppress the latter thermal deterioration in coextrusion molding of a layer made of PFA and Z or FEP and a CTFE copolymer layer, and to have a low permeation performance against chemicals and gas. It is an object of the present invention to provide a CTFE copolymer-containing laminate having improved noria properties and a method for producing the same.
- the present invention relates to a tetrafluoroethylene z perfluorobule ether copolymer and Z Or a layer made of tetrafluoroethylene z-hexafluoropropylene copolymer
- the flow path temperature (the material (a) flows through the flow path temperature before the contact between the material (a) of the layer (A) and the material (b) of the layer (B) pa), 300-400 ° C, and the flow path (pb) through which the above material (b) flows are laminated by coextrusion under the conditions of 250-350 ° C. It is a laminate containing a black-mouthed trifluoroethylene copolymer.
- the present invention relates to a layer (A) comprising a tetrafluoroethylene Z-perfluorobule ether copolymer and Z or tetrafluoroethylene Z-hexafluoropropylene copolymer; A method for producing a laminated body containing a chloroethylene copolymer for producing a laminated body containing a trifluoroethylene copolymer having a layer (B) comprising a trifluoroethylene copolymer.
- a process for producing a laminate containing a black trifluoroethylene copolymer, comprising the step (2) of introducing; is there. The present invention is described in detail below.
- the black trifluoroethylene [CTFE] copolymer-containing laminate of the present invention comprises tetrafluoroethylene [TFE] Z perfluorobule ether [PFVE] copolymer [PFA] and Z or tetrafluoro.
- TFE tetrafluoroethylene
- PFVE perfluorobule ether
- PFA perfluorobule ether
- Z or tetrafluoro Z or tetrafluoro.
- This is a laminate having a layer (A) composed of a polyethylene [TFE] Z hexafluoropropylene [HFP] copolymer [FE P] and a layer (B) also having a CTFE copolymer force.
- the layer (A) and the layer (B) are laminated by coextrusion molding.
- the “layer (A) and layer (B)” includes one or more layers (A) and one or more layers (B) laminated by coextrusion molding. It is a concept that can include. As the “layer (A) and layer (B)”, for example, two layers (A) and one layer (B) may be simultaneously laminated by coextrusion molding.
- the CTFE copolymer-containing laminate of the present invention comprises at least one of layer (A) and layer (B).
- one or more layers composed of PFA and Z or FEP may be included, or a layer having CTFE copolymer strength may be included. It may have one or two or more.
- a layer made of PFA and Z or FEP other than the layer (A) and “a layer made of CTFE copolymer” other than the layer (B) are not laminated by coextrusion molding.
- a “layer that also has CTFE copolymer power” prepared in advance is laminated on the laminate by lamination.
- CTFE copolymer-containing laminate of the present invention is obtained by laminating all of the “layer comprising PFA and Z or FEP” and the “layer capable of CTFE copolymer” by coextrusion molding. Those having (A) and layer (B) ”are preferred.
- the layer (A) in the present invention may be a layer having a PFA force! /, A layer made of FEP, or a layer made of PFA and FEP! /.
- the CTFE copolymer-containing laminate of the present invention is a part composed of one or more layers formed using PFA and Z or FEP, and is formed by coextrusion molding.
- layer (A) Sometimes referred to as “layer (A)”.
- the layer part (A) may be composed of one layer force as long as it is formed using PFA and Z or FEP, and is composed of two or more layers. It may be a thing.
- the layer constituting the layer part (A) corresponds to the layer (A) described above.
- the layer part (A) when the layer part (A) is composed of one layer cover, it may be composed only of a layer made of PFA or composed only of a layer made of FEP. It may be !, and it may consist only of the PFA and FEP layers! /.
- the layer part (A) may include a layer made of PFA and a layer having FEP force, or a layer having PFA force and PFA and FEP force. Or a layer made of FEP and a layer having PFA and FEP force, or two or more layers having PFA and FEP force, and PF in each layer.
- the blending ratio of A and FEP may be different! /.
- the two or more layers constituting the layer part (A) may be in contact with each other, or another layer (C) may be interposed.
- another layer (C) is interposed between at least two of the two or more layers constituting the layer portion (A)
- the “layer portion (A)” is the layer ( Do not include C). That is, the layer part (A) may be divided by another layer (C).
- the layer (C) may be a single layer or two or more layers.
- the layers constituting the layer (C) may have the same composition or different compositions.
- the other layer (C) interposed in the two or more layers constituting the layer portion (A) is not particularly limited, and may be a layer (B) described later, for example.
- the layer (C) is the layer (B)
- the layer in contact with the layer (C) among the two or more layers constituting the layer part (A) and the layer (C) are coextrusion formed later. It is preferable that they are laminated according to shape.
- a layer having a fluoropolymer force other than the above-mentioned "layer also having PFA and Z or FEP force" ( Layer (excluding layer (B)), or a layer having a known thermoplastic resin isotonicity such as polyamide [PA].
- the CTFE copolymer-containing laminate of the present invention may be used.
- the body is formed by laminating (A) the layer (A1) in contact with the layer (B), which will be described later, and the layer (B) by coextrusion, which will be described later, among the two or more layers constituting the layer part (A).
- one or more layers (one or more layers different from the layer (A1)) different from the layer (A1) in the layer part (A) are referred to as “layer ( A2) ”) and the layer (C) can be obtained by laminating them by a method such as laminating, or (ii) the layer (A2) and the layer (C ) And laminate Of on obtained product layer product by techniques Chide monkey be obtained by laminating by extruding by coextrusion below and the layer (A1) and the layer (B).
- the polymer that constitutes the above-mentioned “layer that also has a PFA force” is only FEP.
- PFA and FEP are the only polymers that make up the “PFA and FEP-powered layer”! /.
- the “layer made of PFA”, “layer made of FEP” and “layer made of PFA and FEP force” are respectively referred to as “layer made of only PFA”, “layer made of only FEP” and “PFA”.
- layer made of only PFA layer made of only FEP
- PFA polymers such as PFA and FEP
- PFA polymers such as PFA and FEP, It may also contain the additives described below.
- PFA having a melting point of 280 to 320 ° C is preferred, and more preferably 280 to 310 ° C.
- the FEP preferably has a melting point of 230 to 280 ° C, more preferably 240 to 270 ° C.
- PFA is obtained by copolymerizing at least TFE and PFVE.
- PFVE perfluoro (alkyl butyl ether) [PAVE] is used. It is preferable.
- PAVE include perfluoro (methyl vinyl ether) [PMVE], perfluoro (ethyl vinyl ether) [PEVE], perfluoro (propyl blue ether) [P PVE], perfluoro (butyl vinyl ether), among others.
- PMVE, P EVE or PPVE are preferred! /.
- PFA may be obtained by copolymerizing other comonomers in addition to TFE and PFVE
- FEP may be obtained by comonomers other than TFE and HFP. It may be obtained by copolymerizing the body.
- the other comonomer is not particularly limited as long as it is copolymerizable, and may be two or more types.
- ethylene [Et], vinylidene may be used.
- X 1 , X 3 and X 4 are the same or different and represent a hydrogen atom or a fluorine atom
- X 2 represents a hydrogen atom, a fluorine atom or a chlorine atom
- n is an integer of 1 to 10
- the vinyl monomer represented by the general formula (I) is not particularly limited.
- Rf 1 represents a perfluoroalkyl group having 1 to 8 carbon atoms.
- PAVE represented by the above general formula ( ⁇ ) perfluoro (methyl vinyl ether) [PMVE], perfluoro (ethyl vinyl ether) [PEVE], perfluoro (propyl vinyl ether) [PPVE], perfluoro (butyl vinyl ether) Among them, PMVE, PEVE or PPVE is preferable.
- the FEP is preferably a TFEZHFP binary copolymer and Z or a TFE ZHFPZPFVE ternary copolymer! /.
- the PFA and Z or FEP are preferably those having 40 or less unstable terminal groups per 10 6 carbon atoms. If the number of carbon atoms exceeds 40 per 10 6 , foaming will be difficult during melt molding. A more preferred upper limit is 20, and a still more preferred upper limit is 6. The number of unstable terminal groups can be further zero (measurement limit).
- the unstable terminal group is usually formed at the end of the main chain by the addition of a chain transfer agent or a polymerization initiator used during polymerization, and is derived from the structure of the chain transfer agent or polymerization initiator. It is.
- labile terminal group means —CH OH, —CONH, —COF
- the layer (B) is a layer having a CTFE copolymer strength.
- the CTFE copolymer-containing laminate of the present invention is formed with the layer (A) using PFA and Z or FEP, which are excellent in chemical resistance and heat resistance, but have high chemical liquid permeability.
- a layer (B) is formed using a CTFE copolymer with excellent chemical low permeation performance, and the layer (A) and layer (B) are co-extruded under the condition that the channel temperature is in a specific range described later. In addition to chemical resistance, heat resistance, and stress crack resistance, it is excellent in low permeation performance against chemicals.
- the CTFE copolymer constituting the layer (B) may be a binary copolymer or a copolymer of three or more elements! /.
- n is an integer of 2 to 10
- E / TFE / CH CH (CF) CF (where n is an integer of 2 to 10).
- the CTFE copolymer may be a copolymer of CTFE and Et and Z or a fluorine-containing monomer, such as a CTFEZTFEZEt copolymer and a CTFEZTFEZEtZ PFVE copolymer.
- the CTFE copolymer includes 2 to 98 mol% of a black trifluoroethylene unit [CTFE unit] and a monomer [M] derived from a monomer [M] copolymerizable with CTFE. It is preferably composed of 98 to 2 mol% of units (hereinafter sometimes referred to as “CTFE copolymer (1)”).
- CTFE unit is a moiety derived from chlorotrifluoroethylene (one CFC1-CF—) in the molecular structure of the CTFE copolymer, and the “monomer [M] unit”
- the “position” is a portion formed by addition of the monomer [M] in the molecular structure of the CTFE copolymer.
- the monomer [M] is not particularly limited as long as it is a monomer copolymerizable with CTFE, and
- Two or more kinds may be used, and examples thereof include other comonomers exemplified in the above-mentioned PFA and Z or FEP.
- the CTFE copolymer includes a CTFE unit, a tetrafluoroethylene unit [TFE unit], and a monomer [N] derived from a monomer [N] copolymerizable with CTFE and TFE.
- a CTFE copolymer composed of units (hereinafter sometimes referred to as “CTFE copolymer (11)”) is more preferable.
- CTFE copolymer (11) is more preferable.
- the “TFE unit” is a portion derived from tetrafluoroethylene [one CF-CF one] in the molecular structure of the CTFE copolymer ( ⁇ ), and the above “monomer [N] unit”.
- the monomer [N] has a fluorine atom in the molecule, and is a combination of CTFE and TFE.
- the copolymer is not particularly limited as long as it has copolymerizability, and examples thereof include those other than TFE exemplified as the monomer [M] described above.
- the monomer [N] unit is 10 to 0.1 mol%, and the CTFE unit and the TFE unit are 90% in total. It is preferable to be ⁇ 99.9 mol%.
- the monomer is inferior in moldability, environmental stress crack resistance and stress crack resistance.
- the unit exceeds 10 mol%, the chemical solution has low permeability, heat resistance, and mechanical properties.
- the CTFE unit is preferably 10 to 80 mol%, and the TFE unit is preferably 20 to 90 mol%! /.
- Preferred lower limit is 0.5 mol%, a more preferred upper limit is 5 mol%, still more preferred upper limit is 3 mole 0/0.
- the ratio of monomers such as the monomer [M] unit and the monomer [N] unit is the content of chlorine obtained by 19 F-NMR analysis and elemental analysis. This is a value calculated by mass%.
- the CTFE copolymer preferably has a melting point [Tm] of 150 ° C to 280 ° C.
- a more preferred lower limit is 160 ° C, a still more preferred lower limit is 170 ° C, and a more preferred upper limit is 260 ° C.
- the melting point [Tm] is the temperature of the melting peak when the temperature is raised at a rate of 10 ° CZ using a differential scanning calorimeter [DSC].
- CTFE copolymer it is preferable that unstable terminal groups mentioned above having 10 per 6 carbon is below 40 or less. If it exceeds 40, foaming is likely to occur during melt molding.
- the polymer constituting the CTFE copolymer-containing laminate of the present invention such as the above-mentioned PFA, FEP, and CTFE copolymer, is a conventionally known polymerization such as bulk polymerization, solution polymerization, emulsion polymerization, suspension polymerization and the like. It can be obtained by a method.
- the polymer constituting the CTFE copolymer-containing laminate of the present invention can further reduce the number of unstable terminal groups by a known method such as fluorination treatment.
- the terminal stabilization can be performed, for example, by fluorination after polymerization, and is usually performed at a high temperature.
- the temperature range in the fluorination step is, for example, in the range of 100 ° C to 300 ° C, preferably in the range of 130 ° C to 250 ° C.
- the fluorination is generally carried out by contact reaction with the polymer using fluorine alone or a mixture of non-reactive gas such as nitrogen.
- the terminal stabilization can be performed by using a polymerization initiator that gives a terminal CF group in the polymerization step, for example, other than fluorination after polymerization.
- a polymerization initiator that gives a terminal CF group in the polymerization step, for example, other than fluorination after polymerization.
- perfluoroalkyl such as CF (CF) -0-0- (CF) -CF
- Peroxide perfluoroacidoperoxide such as (CF-(CF) -COO)
- the CTFE copolymer-containing laminate of the present invention may have another layer (D) in addition to the layer (A) and the layer (B)! /.
- the layer (D) can be appropriately selected according to its use, and is not particularly limited. 1S Other layer (C) described above (provided that the layer (C) is the above layer (B)) It may be the same layer as).
- the CTFE copolymer-containing laminate of the present invention also has the layer (D)
- the layer (A) and the layer (B) are laminated by the coextrusion molding described later, and then the layer (D ) Can be obtained by laminating by a method such as laminating, or the layer (A) and the layer (B) can be laminated on the layer (D) by extruding by coextrusion described later. Can also be obtained.
- CTFE copolymer containing laminate of the present invention is preferably 35 mass% hydrochloric acid permeability coefficient of 2.0 X 10_ 13 (g ⁇ cm ) / (cm 2 ' sec) as less is ⁇ .
- a more preferable upper limit of the 35 mass% hydrochloric acid permeability coefficient is 1.5X10 " 13 (g-cm) / (cm 2 -sec ), and a more preferable upper limit is 0.7 10 _13 ( 8 111) / (111 2 'sec) It is.
- a preferred lower limit is, for example, 0
- the CTFE copolymer-containing laminate has a 35 mass% hydrochloric acid permeability coefficient within the above range, it can be used as a fluid transfer member such as a tube even when hydrochloric acid is contained in the fluid. Can be reduced.
- the 35 mass% hydrochloric acid permeation coefficient is an index representing a change in chlorine ion concentration due to permeation of the laminate per unit time and unit area, and is a value measured in the same manner as the evaluation method described later.
- the CTFE copolymer in the present invention further has low gas permeability.
- the above CTFE copolymer has an upper limit of the oxygen permeability coefficient at 25 ° C., preferably 2.0 ⁇ 10 ′′ 10 (cm 3 ′ .111) 7 (.111 2 ′ s′.11113 ⁇ 4), more preferably 1.0.
- CTFE copolymer-containing laminate of the present invention has the layer (B) made of the CTFE copolymer, it can also exhibit excellent gas noria properties.
- the oxygen permeability coefficient is measured by the Mocon method according to ASTM F1249.
- the adhesive strength between the layer (A) and the layer (B) is preferably lONZcm or more.
- the adhesive strength is not within the above range, the chemical solution, gas, water, etc. immersed in the laminate will accumulate at the interface between the layers, causing the interface portion to swell, cracks, etc., resulting in an excellent chemical solution. In some cases, low permeability cannot be expressed.
- a more preferable lower limit of the adhesive strength is 20 NZcm, and a further preferable lower limit is 40 NZcm.
- the adhesive strength is determined by cutting an lcm-wide test piece from a tube-shaped or film-shaped laminate, and using a Tensilon universal testing machine (Orientec Co., Ltd.) to peel 180 ° at a speed of 25 mmZ. The test was conducted and the elongation was obtained as the average of 5 points on the tensile strength graph.
- the CTFE copolymer-containing laminate of the present invention can be produced by a method including laminating the layer (A) and the layer (B) by coextrusion molding.
- the flow temperature of each material before the contact between the material (a) of the layer (A) and the material (b) of the layer (B) in the coextrusion molding is described later. This is done by appropriately setting a specific range.
- the extrusion temperature is preferably 350 ° C or less from the viewpoint of suppressing thermal degradation. In addition to the problem of coloring when CTFE copolymer is heat deteriorated, molecular weight may decrease and cracks may easily occur. This is because it may not be expressed.
- the melting point of each copolymer is high as described above, so it was preferred that the extrusion temperature be 350 ° C or higher. When PFA and Z or FEP are extruded at less than 350 ° C, it is generally difficult to maintain melt appearance and maintain the appearance of the molded product.
- the channel temperature of each material before the material (a) of the layer (A) and the material (b) of the layer (B) are in contact with each other is appropriately set within a specific range described later. Accordingly, the present invention provides a laminate that suppresses thermal deterioration of the layer (B), that is, the CTFE copolymer layer, and has an excellent appearance, low chemical liquid permeability, interfacial adhesion, and crack resistance. Can do.
- the temperature of each channel can be adjusted, for example, by providing a heat insulating layer between each channel and installing an independent heater in each channel.
- the layer (A) and the layer (B) are placed in a multilayer die, and the material of the layer (A) ( Contact between a) and the material of layer (B) (b)
- the flow path temperature is 300 to 400 ° C for the flow path (pa) through which the material (a) flows, and 250 to 350 ° C for the flow path (pb) through which the material (b) flows. It is laminated by coextrusion molding below.
- the material (a) and the material (b) are not particularly limited.
- the corresponding pellets such as PFA pellets, FE P pellets, and CTFE copolymer pellets are subjected to a coextrusion molding machine and pressed. It can be made into a molten state by melt-kneading in an exit machine.
- the material (a) and Z or the material (b), particularly the material (a) may be appropriately blended with additives such as carbon black in addition to the above polymers.
- the die temperature at the contact portion between the material (a) and the material (b) is further set to 280 to 380 °. It is preferable to carry out under the condition of C.
- the contact portion may be a portion where the material (a) whose flow path (pa) force is also pushed out and the material (b) where the flow path (pb) force is also pushed! Yes.
- the above coextrusion molding is also effective in suppressing the thermal deterioration of the CTFE copolymer constituting the material (b). It is preferable to shorten the residence time at the contact portion with the material (b).
- the residence time can be appropriately set by shortening the die length of the contact portion or increasing the take-up speed of the tube or sheet in the extruder, but preferably within 2 minutes, more preferably within 1 minute. More preferably, it is within 30 seconds.
- the layer (A) and the layer (B) preferably have a thickness of 0.05 to 10 mm, more preferably 0.05 to 5 mm.
- the above range represents the thickness of the entire layer when the layer (A) and the layer (B) forces are each composed of two or more layers.
- the CTFE copolymer-containing laminate production method of the present invention comprises PFA and Z or FEP.
- the material of layer (B) (b) is kneaded by an extruder different from the extruder and then transferred to the multilayer die and introduced into the channel (pb) with a channel temperature of 250 to 350 ° C. Step (2).
- the CTFE copolymer-containing laminate production method of the present invention generally has a low melting point and a thermal decomposition temperature by adjusting the flow channel temperatures of the flow channel (pa) and the flow channel (pb) within the above ranges.
- a CTFE copolymer is generally laminated with PFA and Z or FEP by coextrusion molding with high melting point and high thermal decomposition temperature, it suppresses thermal degradation of any polymer and )
- the layer (B) have good interfacial fusion properties and low permeability to chemical solutions, and can provide a laminate with excellent strength and appearance.
- the flow path (pb) force may include a step ( 3 ′) of forming a laminate of the layer portion (A) and the layer (B) by extrusion.
- the die temperature at the contact portion with the channel (pa) and the channel (pb) is adjusted.
- a step (3) of forming a laminate of the layer (A) and the layer (B) by extruding the material (a) and the material (b) by coextrusion at 380 ° C. is also preferably included.
- the multi-layer die includes, for example, a heat insulating portion that includes a flow path (pa) and a flow path (pb) as shown in FIG.
- a heat insulating portion that includes a flow path (pa) and a flow path (pb) as shown in FIG.
- the heat insulating part is preferably an air (air) layer.
- the outer layer side die is separately provided at the flow path (pa) near the outlet of the inner layer side die, and the outer layer side flow path (pb) and the tip of the inner layer side die are joined. Preferred.
- a heater can be attached to each of the outer layer die and the inner layer die.
- Figures 3 and 4 show that an example of a tube die for forming a two-layer can be handled by increasing the number of channels even if the force is three or more layers.
- the CTFE copolymer-containing laminate of the present invention described above has one or two or more layers (A) and one or two or more layers (A) and (B).
- the layer (B) may be laminated by coextrusion molding, but when three or more layers are laminated by coextrusion molding, a flow path corresponding to the flow path (pa), that is, The flow path through which the material (a) constituting the layer (A) flows is defined as a flow path temperature within a specific range for the flow path (pa), and the flow path corresponding to the flow path (pb), that is, the layer
- the flow path through which the material (b) constituting the (B) flows may be co-extruded under the condition that the flow path (pb) is set to a flow path temperature within a specific range.
- the above-mentioned “layer (A) and layer (B)” force For example, when one layer (A), one layer (B) and one layer (A) are laminated in this order, in the multi-layer die, a total of three channels, ie, channel (a), channel (b), and channel (a), are arranged in this order. It is preferable to provide a heater for heating each of the three flow paths.
- CTFE copolymer-containing laminate of the present invention and the CTFE copolymer-containing laminate obtained from the above-described CTFE copolymer-containing laminate production method of the present invention (hereinafter referred to as these CTFE copolymer-containing laminates).
- the body is simply referred to as “the CTFE copolymer-containing laminate in the present invention.”
- the CTFE copolymer-containing laminate in the present invention is not necessarily composed of only the layer (A) and the layer (B).
- the layer (B) is an intermediate layer.
- Outer layer up The recording layer portion (A) may have a three-layer structure, or the intermediate layer may be the layer (A), and the outer layers may be a three-layer structure. Further, it may have a structure of three or more layers having the layer (A), the layer (B) and the layer (D).
- the layer (B) in the case of a tube, a hose or a pipe, the layer (B) may be an outer layer or an inner layer.
- the innermost layer is preferred.
- the material (a) of the layer (A) is preferably made of FEP.
- the CTFE copolymer-containing laminate in the present invention has a structure of three or more layers having the layer (D), the layer (A) is the innermost layer, the layer (B) is the intermediate layer and the layer (D) is The outermost layer is preferably the innermost layer, and more preferably conductive.
- a layer formed by adding a conductive substance such as carbon black is preferable.
- the CTFE copolymer-containing laminate in the present invention is particularly preferably a fluid transfer member, but can be used for various applications.
- applications include chemical solution supply piping tubes of semiconductor factories and chemical factories, lining sheets or lining tubes of lining piping materials; lining sheets of chemical solution storage tanks; chemical solution piping in semiconductor cleaning devices and coater developer devices Tubes; Containers and packaging materials for chemicals, pharmaceuticals, foods, etc .; Solar cell films; Agricultural films; Fuel pipe tubes for automobiles; Water sterilization tubes; Moisture-proof films or tubes such as moisture-proof films for electronic parts; Fire prevention safety film for glass, etc.
- CTFE copolymer-containing laminate in the present invention is used as a fluid transfer member, for example, a chemical solution in a semiconductor factory or a chemical factory; a chemical solution in a semiconductor cleaning device or a coater / developer device; Can do.
- Examples of the chemical solution include hydrochloric acid, hydrofluoric acid, nitric acid, sulfuric acid, phosphoric acid, fuming nitric acid, hydrogen peroxide, aqua regia, ammonia water, hydrofluoric acid, Z nitric acid mixed acid, nitric acid Z acetic acid Z phosphoric acid mixed liquid, And developing solution.
- the CTFE copolymer of the present invention has excellent chemical resistance and low permeability as described above, and also has excellent gas-nore properties such as water vapor, nitrogen, ammonia, oxygen, and hydrogen.
- CTFE copolymer-containing laminates are externally used as tubes, films, etc. Gas can be prevented from entering, and the fluid can be transferred without mixing various gases, so that the quality of the contents can be maintained.
- CTFE copolymer-containing laminate of the present invention has the above-described configuration, it has excellent appearance, low chemical liquid permeability, interfacial adhesion, and crack resistance.
- the CTFE copolymer-containing laminate production method of the present invention suppresses thermal deterioration of the CTFE copolymer layer during molding of a laminate having a PFA layer or FEP layer and a CTFE copolymer layer, and has an excellent appearance. It is possible to produce a laminate having low chemical liquid permeability, interfacial adhesion and crack resistance.
- a jacketed agitation polymerization tank capable of containing 1320 kg of water was charged with 392 kg of demineralized pure water, the interior space was sufficiently replaced with pure nitrogen gas, and the nitrogen gas was then removed in vacuo.
- press injection of 307 kg of octafluorocyclobutane, 5.8 kg of black trifluoroethylene [CTFE], 49.6 kg of tetrafluoroethylene [TFE], 27.7 kg of perfluoro (propyl butyl ether) [P PVE] The temperature was adjusted to 35 ° C and stirring was started. The polymerization was initiated by the addition of 50 mass 0/0 methanol solution 0.
- a jacketed agitation polymerization tank capable of containing 1320 kg of water was charged with 392 kg of demineralized pure water, the interior space was sufficiently replaced with pure nitrogen gas, and the nitrogen gas was then removed in vacuo.
- 307 kg of octafluorocyclobutane, 18 kg of chlorofluoroethylene [CTFE], 35 kg of tetrafluoroethylene [TFE] and 22 kg of perfluoro (propyl butyl ether) [PPV E] were injected and the temperature was 35 °. Adjust to C and start stirring. 50 mass 0/0 methanol solution of di -n- propyl Per O carboxymethyl dicarbonate [NPP] as a polymerization initiator here 3.
- CTFE copolymer pellets obtained from each synthesis example were evaluated for the following physical properties.
- DSC differential scanning calorimeter
- TG-DTA differential heat / thermogravimetric measurement device
- 10 mg of the sample was heated to room temperature at a heating rate of 10 ° CZ, and the sample decreased by 1% by mass.
- the decomposition start temperature was determined as the temperature.
- Fig. 3 there are two types of multi-layer dies for tubes with two layers of air, a heat insulating layer of air layer between each flow path before the two layers contact, and a heater that heats the flow path of each layer.
- Example 2 The PFA resin used for the inner layer is heated to 200 ° C in the presence of a gas mixture in which fluorine gas is diluted to 30% by volume with nitrogen so that there is no unstable terminal group per 10 6 carbon atoms.
- the two-layer, two-layer tube die used for the tube is as shown in FIG. 4.
- the number of unstable end groups is 0.25 by thickness of the polymer by cold pressing.
- I is the absorbance
- K is the correction coefficient shown in the table below
- t is the thickness of the finalem used in the measurement (unit: mm).
- Table 2 shows the correction factor K.
- Type 2 A two-layer film multilayer die is a die that has an air insulation layer between each channel before the two layers come into contact with each other and a heater that heats the channel in each layer.
- a laminated tube was obtained in the same manner as in Comparative Example 1 except that the same outer layer material and inner layer material as in Comparative Example 1 were used and the multilayer extrusion molding conditions shown in Table 3 were adopted.
- the inner layer and the outer layer represent the other layer and the other layer.
- the laminated tube or film obtained from each Example and each Comparative Example was evaluated by the following method.
- a sample sheet 11 was sandwiched between two glass containers 12a and 12b shown in FIG. 1 (both each having a capacity of 200 ml) using an O-ring 13 made of fluoro rubber. Place 35 mass% hydrochloric acid in the container 12a on one side of the Sampnore sheet 11 and 200 ml each of pure water in the other container 12b, and leave it in a constant temperature bath at 25 ° C (at this time, the sample sheet 11 (The wetted surface should be 70mm ⁇ ).
- the sample is left in this state, and about 1 ml is sampled from the sampling port 14 of the pure water side container 12b, and the chlorine ion concentration Y (ppm) contained in the pure water is ion chromatograph (trade name: IC7000-E, Quantitatively using Yokogawa Electric Co., Ltd., and calculated using the following formula.
- one end of the tube 21 cut to a length of 30 cm was sealed with heat, 52 ml of 35% by mass hydrochloric acid was placed in the tube 21, and the other tube end was also sealed.
- a tube 21 containing hydrochloric acid was inserted into a glass tube 22 and fixed with a fluororubber packing 23.
- 110 ml of pure water with a sampling port of 24 ml was charged and placed in a constant temperature bath at 25 ° C. At this time, the tube between the packings 23 was in contact with pure water, and the length of the wetted part was 18.5 cm.
- the sample was left in this state, sampled from the sampling port 24 to about 1 ml, and the chlorine ion concentration contained in the pure water was quantified using an ion chromatograph in the same manner as the sheet permeation test, and calculated using the following formula.
- T Elapsed time from the start of permeation (when hydrochloric acid is added to the container) to sampling (unit: seconds)
- Film thickness Sheet thickness or tube wall thickness (Unit: Cm , measured with a micrometer.)
- Cross-sectional area The area of the part of the sample sheet or tube that is in contact with pure water (by a permeation tester) (Unit: cm 2 )
- CTFE copolymer layer interfacial adhesion adhesion
- Table 4 shows the evaluation results.
- the molded body could not be molded.
- the molded bodies obtained from each Example are all excellent in 35% by mass hydrochloric acid permeability coefficient and adhesive strength, and peeled off at 20 NZcm.
- the laminates of Examples 1, 2 and 5 in which PFA was formed as the inner layer were particularly excellent in adhesive strength, and the laminates of Examples 3, 4 and 6 in which FEP was formed as the inner layer were The 35 mass% hydrochloric acid permeability coefficient tended to be low.
- CTFE copolymer-containing laminate of the present invention has the above-described configuration, it has excellent appearance, low chemical liquid permeability, interfacial adhesion, and crack resistance.
- the CTFE copolymer-containing laminate production method of the present invention suppresses thermal deterioration of the CTFE copolymer layer during molding of a laminate having a PFA layer or FEP layer and a CTFE copolymer layer, and has an excellent appearance. It is possible to produce a laminate having low chemical liquid permeability, interfacial adhesion and crack resistance.
- Fig. 1 is a schematic diagram of an experimental apparatus used for a 35 mass% hydrochloric acid permeation test on a laminated film.
- FIG. 2 is a schematic diagram of an experimental apparatus used in a 35 mass% hydrochloric acid permeation test on a laminated tube.
- FIG. 3 is a schematic view of an example of a multilayer die for a tube of type 2 and 2 in the present invention.
- FIG. 4 is a schematic view of an example of a multilayer die for a tube of type 2 and 2 in the present invention.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Laminated Bodies (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/908,286 US20090053443A1 (en) | 2005-03-10 | 2006-03-10 | Chlorotrifluoroethylene copolymer containing laminate and process for production thereof |
EP06715529A EP1859934A4 (en) | 2005-03-10 | 2006-03-10 | CHLOROTRIFLUOROETHYLENE COPOLYMER CONTAINING LAMINATE AND METHODS OF MAKING SAME |
JP2007507203A JP4816639B2 (ja) | 2005-03-10 | 2006-03-10 | クロロトリフルオロエチレン共重合体含有積層体及びその製造方法 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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JP2005-068105 | 2005-03-10 | ||
JP2005068105 | 2005-03-10 | ||
JP2005-337789 | 2005-11-22 | ||
JP2005337789 | 2005-11-22 |
Publications (1)
Publication Number | Publication Date |
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WO2006095857A1 true WO2006095857A1 (ja) | 2006-09-14 |
Family
ID=36953446
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PCT/JP2006/304759 WO2006095857A1 (ja) | 2005-03-10 | 2006-03-10 | クロロトリフルオロエチレン共重合体含有積層体及びその製造方法 |
Country Status (5)
Country | Link |
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US (1) | US20090053443A1 (ja) |
EP (1) | EP1859934A4 (ja) |
JP (1) | JP4816639B2 (ja) |
KR (1) | KR20070110431A (ja) |
WO (1) | WO2006095857A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008047455A1 (fr) * | 2006-10-20 | 2008-04-24 | Kyoraku Co., Ltd | Tube à couches multiples |
JP2008107534A (ja) * | 2006-10-25 | 2008-05-08 | Jsr Corp | 光学フィルム、光学フィルムの製造方法、位相差フィルム、偏光板および液晶パネル |
JP2013181128A (ja) * | 2012-03-02 | 2013-09-12 | Asahi Glass Co Ltd | ポリマーの製造方法、固体高分子形燃料電池用電解質膜および膜電極接合体 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2507029B1 (en) | 2009-12-04 | 2014-02-26 | Shell Internationale Research Maatschappij B.V. | Method for preparing coated binder units |
US10421257B2 (en) * | 2013-11-15 | 2019-09-24 | Daikin Industries, Ltd. | Laminate, method for manufacturing same, and fluororubber composition |
WO2019220850A1 (ja) * | 2018-05-14 | 2019-11-21 | ダイキン工業株式会社 | 積層体およびチューブ |
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- 2006-03-10 WO PCT/JP2006/304759 patent/WO2006095857A1/ja active Application Filing
- 2006-03-10 KR KR1020077023016A patent/KR20070110431A/ko not_active Application Discontinuation
- 2006-03-10 US US11/908,286 patent/US20090053443A1/en not_active Abandoned
- 2006-03-10 JP JP2007507203A patent/JP4816639B2/ja active Active
- 2006-03-10 EP EP06715529A patent/EP1859934A4/en not_active Withdrawn
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WO2000047641A1 (fr) * | 1999-02-15 | 2000-08-17 | Daikin Industries, Ltd. | Procede de production de fluoropolymere |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008047455A1 (fr) * | 2006-10-20 | 2008-04-24 | Kyoraku Co., Ltd | Tube à couches multiples |
US8124208B2 (en) | 2006-10-20 | 2012-02-28 | Kyoraku Co., Ltd. | Multi-layer tube |
JP2008107534A (ja) * | 2006-10-25 | 2008-05-08 | Jsr Corp | 光学フィルム、光学フィルムの製造方法、位相差フィルム、偏光板および液晶パネル |
JP2013181128A (ja) * | 2012-03-02 | 2013-09-12 | Asahi Glass Co Ltd | ポリマーの製造方法、固体高分子形燃料電池用電解質膜および膜電極接合体 |
Also Published As
Publication number | Publication date |
---|---|
EP1859934A1 (en) | 2007-11-28 |
JP4816639B2 (ja) | 2011-11-16 |
JPWO2006095857A1 (ja) | 2008-08-21 |
US20090053443A1 (en) | 2009-02-26 |
EP1859934A4 (en) | 2011-08-24 |
KR20070110431A (ko) | 2007-11-16 |
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