WO2022230803A1 - 金属樹脂積層体及び金属樹脂積層体の製造方法 - Google Patents
金属樹脂積層体及び金属樹脂積層体の製造方法 Download PDFInfo
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- WO2022230803A1 WO2022230803A1 PCT/JP2022/018712 JP2022018712W WO2022230803A1 WO 2022230803 A1 WO2022230803 A1 WO 2022230803A1 JP 2022018712 W JP2022018712 W JP 2022018712W WO 2022230803 A1 WO2022230803 A1 WO 2022230803A1
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- Prior art keywords
- metal
- metal material
- oxide layer
- resin
- thermosetting resin
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- 150000003077 polyols Chemical class 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- VKJKEPKFPUWCAS-UHFFFAOYSA-M potassium chlorate Chemical compound [K+].[O-]Cl(=O)=O VKJKEPKFPUWCAS-UHFFFAOYSA-M 0.000 description 1
- 229910001487 potassium perchlorate Inorganic materials 0.000 description 1
- 239000013225 prussian blue Substances 0.000 description 1
- 229960003351 prussian blue Drugs 0.000 description 1
- 235000011962 puddings Nutrition 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 238000010107 reaction injection moulding Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000001603 reducing effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- YGSDEFSMJLZEOE-UHFFFAOYSA-M salicylate Chemical compound OC1=CC=CC=C1C([O-])=O YGSDEFSMJLZEOE-UHFFFAOYSA-M 0.000 description 1
- 229960001860 salicylate Drugs 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 150000004756 silanes Chemical class 0.000 description 1
- 239000005049 silicon tetrachloride Substances 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- UKLNMMHNWFDKNT-UHFFFAOYSA-M sodium chlorite Chemical compound [Na+].[O-]Cl=O UKLNMMHNWFDKNT-UHFFFAOYSA-M 0.000 description 1
- 229960002218 sodium chlorite Drugs 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 125000003107 substituted aryl group Chemical group 0.000 description 1
- 235000000346 sugar Nutrition 0.000 description 1
- 150000008163 sugars Chemical class 0.000 description 1
- 150000003462 sulfoxides Chemical class 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- XBFJAVXCNXDMBH-UHFFFAOYSA-N tetracyclo[6.2.1.1(3,6).0(2,7)]dodec-4-ene Chemical compound C1C(C23)C=CC1C3C1CC2CC1 XBFJAVXCNXDMBH-UHFFFAOYSA-N 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 150000003567 thiocyanates Chemical class 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 150000003573 thiols Chemical class 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 150000003606 tin compounds Chemical class 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- WLPUWLXVBWGYMZ-UHFFFAOYSA-N tricyclohexylphosphine Chemical compound C1CCCCC1P(C1CCCCC1)C1CCCCC1 WLPUWLXVBWGYMZ-UHFFFAOYSA-N 0.000 description 1
- DHWBYAACHDUFAT-UHFFFAOYSA-N tricyclopentylphosphane Chemical compound C1CCCC1P(C1CCCC1)C1CCCC1 DHWBYAACHDUFAT-UHFFFAOYSA-N 0.000 description 1
- ALVYUZIFSCKIFP-UHFFFAOYSA-N triethoxy(2-methylpropyl)silane Chemical compound CCO[Si](CC(C)C)(OCC)OCC ALVYUZIFSCKIFP-UHFFFAOYSA-N 0.000 description 1
- ZNOCGWVLWPVKAO-UHFFFAOYSA-N trimethoxy(phenyl)silane Chemical class CO[Si](OC)(OC)C1=CC=CC=C1 ZNOCGWVLWPVKAO-UHFFFAOYSA-N 0.000 description 1
- ASTWEMOBIXQPPV-UHFFFAOYSA-K trisodium;phosphate;dodecahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].[Na+].[O-]P([O-])([O-])=O ASTWEMOBIXQPPV-UHFFFAOYSA-K 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
-
- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
- B29C65/64—Joining a non-plastics element to a plastics element, e.g. by force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/18—Layered products comprising a layer of metal comprising iron or steel
-
- 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
- B29K2086/00—Use of specific polymers obtained by polycondensation or polyaddition, not provided for in a single one of main groups B29K2059/00 - B29K2085/00, as moulding material
-
- 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
- B29K2101/00—Use of unspecified macromolecular compounds as moulding material
- B29K2101/10—Thermosetting resins
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/538—Roughness
Definitions
- the present invention relates to a metal-resin laminate obtained by laminating a metal material and a thermosetting resin, and more particularly to a metal-resin laminate in which a thermosetting resin is firmly bonded to the surface of a metal material.
- Patent Document 1 as a composite of a molded article of a metal alloy and a thermosetting resin composition, the surface of the metal alloy has a predetermined roughness and ultrafine unevenness, and the surface layer is a metal oxide Alternatively, a thin layer of metal phosphorous oxide is used, and the thermosetting resin composition is hardened while penetrating into the ultrafine unevenness on the surface of the metal alloy, so that the metal alloy and the molded product are adhesive Complexes that are conjugated without intervening are described.
- the present invention has been made in view of such circumstances, and an object of the present invention is to provide a metal-resin laminate in which a thermosetting resin is firmly bonded to the surface of a metal material, and such a metal-resin laminate.
- an object of the present invention is to provide a metal-resin laminate in which a thermosetting resin is firmly bonded to the surface of a metal material, and such a metal-resin laminate.
- a metal-resin laminate obtained by laminating a metal material and a thermosetting resin, wherein the shear adhesive strength between the metal material and the thermosetting resin is 10 MPa or more.
- a metal-resin laminate is provided.
- the metal material and the thermosetting resin are preferably laminated by direct bonding or via an oxide layer.
- the metal material preferably contains at least one metal selected from the group consisting of copper, nickel, aluminum, chromium and iron.
- the metal material is preferably copper or a copper alloy.
- the thermosetting resin is preferably a polymer obtained by bulk-polymerizing a polymerizable composition containing a norbornene-based monomer.
- the metal-resin laminate of the present invention may further have a layer other than the layer composed of the metal material and the thermosetting resin.
- a method for producing a metal-resin laminate obtained by laminating a metal material and a thermosetting resin comprising: A first step of preparing a metal material having an oxide layer with a thickness of 2 nm or more on the surface and a center line average surface roughness Ra of 1.5 nm or more; a second step of bringing an acid into contact with the metal material prepared in the first step; and a third step of bringing a thermosetting resin material into contact with the surface of the metal material that has been brought into contact with acid in the second step and curing the metal material.
- the first step includes oxidizing the metal material in air or in liquid to form an oxide layer having a thickness of 2 nm or more on the surface and center line average It is preferable to include a step of obtaining a metal material having a surface roughness Ra of 1.5 nm or more.
- the metal material preferably contains at least one metal selected from the group consisting of copper, nickel, aluminum, chromium and iron.
- the metal material is preferably copper or a copper alloy.
- the thermosetting resin material is a polymerizable composition containing a norbornene-based monomer.
- the present invention provides a metal-resin laminate in which a thermosetting resin is firmly bonded to the surface of a metal material, and a method for producing such a metal-resin laminate that can efficiently produce such a metal-resin laminate. can do.
- the metal-resin laminate of the present invention is a metal-resin laminate obtained by laminating a metal material and a thermosetting resin, wherein the shear adhesive strength between the metal material and the thermosetting resin is 10 MPa or more. There is something.
- the metal material and the thermosetting resin are preferably laminated substantially without an oxide layer intervening, that is, laminated by direct bonding.
- the metal material and the thermosetting resin may have an oxide layer partially or wholly interposed therebetween.
- the thickness of the oxide layer produced by natural oxidation varies depending on the type of metal material and is not particularly limited, but is usually up to about 30 nm. is less than 30 nm, preferably less than 5 nm, more preferably less than 2 nm, depending on the type of metal material.
- the thickness of the oxide layer can be measured by a method using an X-ray photoelectron spectrometer, which will be described later.
- Metal materials are not particularly limited, and various metal materials such as iron, copper, nickel, gold, silver, platinum, palladium, cobalt, zinc, lead, tin, titanium, chromium, aluminum, magnesium, manganese and alloys thereof. can be used, but preferably contains at least one metal selected from the group consisting of copper, nickel, aluminum, chromium and iron. Among these, copper, copper alloys, aluminum or iron alloys (stainless steel ) is more preferable, copper or a copper alloy is more preferable, and copper is particularly preferable.
- high-purity copper such as tough pitch copper and oxygen-free copper (for example, purity of 95% by mass or more, preferably purity of 99% by mass or more, more preferably purity of 99.9% by mass or more) is particularly preferable.
- copper alloys include brass, phosphor bronze, western alloy, aluminum bronze, etc. Pure copper alloys such as C1020 and C1100 specified in Japanese Industrial Standards (JIS H 3000 series), C2600 series brass alloys, C5600 series All copper alloys, such as white copper alloys, other iron-based copper alloys for connectors, etc.
- the shape of the metal material is also not particularly limited, but a plate-like or thin-film shape is preferable because a laminate with a thermosetting resin can be formed satisfactorily.
- the thickness is preferably 0.001 to 100 mm, more preferably 0.1 to 50 mm, particularly preferably 0.5 to 40 mm.
- the metal material may be a metal foil, a substrate such as a printed wiring board manufacturing substrate, or a terminal electrode of various electronic components.
- a thermosetting resin can be used as a sealing material by using a metal material as a terminal electrode of various electronic components and laminating a thermosetting resin thereon.
- Thermosetting resins are not particularly limited, but include norbornene resins, unsaturated polyester resins, acrylic resins, vinyl ester resins, alkyd resins, amino resins, epoxy resins, urethane resins, phenol resins, silicone resins, and the like.
- norbornene-based resins and epoxy resins are preferred, and norbornene-based resins are preferred, from the viewpoint that the bonding strength to metal materials can be further increased.
- a polymerizable composition containing a norbornene-based monomer can be suitably used as a thermosetting resin material for forming a norbornene-based resin (thermosetting resin).
- thermosetting resin thermosetting resin
- the norbornene-based monomer is not particularly limited as long as it is a compound having a norbornene ring structure, but bicyclics such as norbornene and norbornadiene; tricyclics such as dicyclopentadiene; tetracyclics such as tetracyclododecene; pentacyclics such as tricyclopentadiene; heptacyclics such as tetracyclopentadiene; Derivatives having an epoxy group or a (meth)acrylic group are included.
- Norbornene-based monomers can be used singly or in combination of two or more.
- the norbornene-based monomer the above tricyclics are preferable, and dicyclopentadiene is particularly preferable, from the viewpoint that the effects of the present invention can be further enhanced.
- the norbornene-based monomer used preferably contains at least 50% by mass of the tricyclic compound, especially dicyclopentadiene.
- the content of the norbornene-based monomer in the polymerizable composition used in the present invention is not particularly limited, but preferably 50% by mass or more in 100% by mass of the total polymerizable monomers contained in the polymerizable composition, and more It is preferably 60% by mass or more, more preferably 70% by mass or more, and may be 100% by mass.
- the bonding strength to the metal material can be further increased.
- a monocyclic cycloolefin may further be used as a polymerizable monomer to be contained in the polymerizable composition.
- Monocyclic cycloolefins include, but are not limited to, cyclobutene, cyclopentene, cyclohexene, cyclooctene, cyclododecene, cyclopentadiene, 1,4-cyclohexadiene, 1,5-cyclooctadiene, and those having 2 to 2 carbon atoms.
- Derivatives having 10 alkenyl groups, alkynyl groups having 2 to 10 carbon atoms, alkylidene groups having 1 to 10 carbon atoms, epoxy groups, or (meth)acrylic groups can be mentioned.
- a monocyclic cycloolefin can be used individually by 1 type or in combination of 2 or more types.
- the polymerizable composition used in the present invention may contain other polymerizable monomers that can be polymerized with the norbornene-based monomers and monocyclic cycloolefins.
- Such other polymerizable monomers include other cycloolefin monomers and (meth)acrylate monomers such as phenoxyethylene glycol (meth)acrylate.
- the (meth)acrylate-based monomer can function as an adhesion aid between the metal material and the norbornene-based resin.
- (Meth)acrylate as used herein means methacrylate or acrylate.
- the content of polymerizable monomers other than norbornene-based monomers in the polymerizable composition used in the present invention is not particularly limited, but preferably 50% by mass of 100% by mass of the total polymerizable monomers contained in the polymerizable composition. Below, it is more preferably 40% by mass or less, still more preferably 30% by mass or less, and may be 0% by mass.
- the content of the entire polymerizable monomer in the polymerizable composition used in the present invention is preferably 10 to 95% by mass, more preferably 15 to 93% by mass, in 100% by mass of the entire polymerizable composition, and further It is preferably 20 to 90% by mass.
- the polymerizable composition used in the present invention preferably contains a metathesis polymerization catalyst as a polymerization catalyst.
- the metathesis polymerization catalyst is not particularly limited as long as it can carry out ring-opening polymerization of norbornene-based monomers, and known catalysts can be used.
- the metathesis polymerization catalyst used in the present invention is a complex formed by combining a plurality of ions, atoms, polyatomic ions and/or compounds with a transition metal atom as the central atom.
- a transition metal atom atoms of Groups 5, 6 and 8 (long period periodic table, hereinafter the same) are used.
- the atoms of each group are not particularly limited, but Group 5 atoms include, for example, tantalum, Group 6 atoms include, for example, molybdenum and tungsten, and Group 8 atoms include , for example, ruthenium and osmium. Among these transition metal atoms, Group 8 ruthenium and osmium are preferred.
- the metathesis polymerization catalyst used in the present invention is preferably a complex having ruthenium or osmium as the central atom, more preferably a complex having ruthenium as the central atom.
- a ruthenium carbene complex in which a carbene compound is coordinated to ruthenium is preferable as the complex having ruthenium as a central atom.
- “carbene compound” is a generic term for compounds having a methylene free radical, and refers to compounds having an uncharged divalent carbon atom (carbene carbon) represented by (>C:).
- the obtained polymer has little odor derived from unreacted monomers, and a high-quality polymer can be obtained with good productivity. In addition, it is relatively stable against oxygen and moisture in the air, and is resistant to deactivation, so it can be used in the atmosphere. Only one type of metathesis polymerization catalyst may be used, or a plurality of types may be used in combination.
- Ruthenium carbene complexes include those represented by the following general formula (1) or general formula (2).
- R 1 and R 2 each independently contain a hydrogen atom; a halogen atom; or a halogen atom, an oxygen atom, a nitrogen atom, a sulfur atom, a phosphorus atom, or a silicon atom.
- R 1 and R 2 combined to form a ring include an indenylidene group that may have a substituent such as a phenylindenylidene group.
- organic group having 1 to 20 carbon atoms which may contain a halogen atom, an oxygen atom, a nitrogen atom, a sulfur atom, a phosphorus atom or a silicon atom
- an alkyl group having 1 to 20 carbon atoms an alkyl group having 1 to 20 carbon atoms, alkenyl group having 20 carbon atoms, alkynyl group having 2 to 20 carbon atoms, aryl group having 6 to 20 carbon atoms, alkoxy group having 1 to 20 carbon atoms, alkenyloxy group having 2 to 20 carbon atoms, alkynyloxy group having 2 to 20 carbon atoms aryloxy group having 6 to 20 carbon atoms, alkylthio group having 1 to 8 carbon atoms, carbonyloxy group, alkoxycarbonyl group having 1 to 20 carbon atoms, alkylsulfonyl group having 1 to 20 carbon atoms, and 1 to 20 carbon atoms.
- alkylsulfinyl group alkylsulfonic acid group having 1 to 20 carbon atoms
- arylsulfonic acid group having 6 to 20 carbon atoms phosphonic acid group
- arylphosphonic acid group having 6 to 20 carbon atoms alkylammonium having 1 to 20 carbon atoms groups
- arylammonium groups having 6 to 20 carbon atoms arylammonium groups having 6 to 20 carbon atoms.
- These organic groups having 1 to 20 carbon atoms which may contain a halogen atom, an oxygen atom, a nitrogen atom, a sulfur atom, a phosphorus atom or a silicon atom may have a substituent.
- substituents include alkyl groups having 1 to 10 carbon atoms, alkoxy groups having 1 to 10 carbon atoms, and aryl groups having 6 to 10 carbon atoms.
- X 1 and X 2 each independently represent any anionic ligand.
- Anionic ligands are ligands that have a negative charge when pulled away from the central metal atom, such as halogen atoms, diketonate groups, substituted cyclopentadienyl groups, alkoxyl groups, aryloxy groups, A carboxyl group and the like can be mentioned.
- L 1 and L 2 represent a heteroatom-containing carbene compound or a neutral electron donating compound other than a heteroatom-containing carbene compound.
- Heteroatom-containing carbene compounds and neutral electron-donating compounds other than heteroatom-containing carbene compounds are compounds that have a neutral charge when separated from the central metal.
- a heteroatom-containing carbene compound is preferred from the viewpoint of improving catalytic activity.
- the heteroatom means an atom of Groups 15 and 16 of the periodic table, and specific examples include a nitrogen atom, an oxygen atom, a phosphorus atom, a sulfur atom, an arsenic atom, and a selenium atom. .
- a nitrogen atom, an oxygen atom, a phosphorus atom, and a sulfur atom are preferable, and a nitrogen atom is more preferable.
- the heteroatom-containing carbene compound is preferably a compound represented by the following general formula (3) or (4), and more preferably a compound represented by the following general formula (3) from the viewpoint of improving catalytic activity.
- R 3 , R 4 , R 5 and R 6 are each independently a hydrogen atom; a halogen atom; or a halogen atom, an oxygen atom, a nitrogen atom, a sulfur atom, a phosphorus atom an organic group having 1 to 20 carbon atoms which may contain an atom or a silicon atom; Specific examples of the organic group having 1 to 20 carbon atoms which may contain a halogen atom, an oxygen atom, a nitrogen atom, a sulfur atom, a phosphorus atom or a silicon atom are the same as in the general formulas (1) and (2). is.
- R 3 , R 4 , R 5 and R 6 may combine with each other in any combination to form a ring.
- R 5 and R 6 are hydrogen atoms because the effect of the present invention becomes more remarkable.
- R 3 and R 4 are preferably an optionally substituted aryl group, more preferably a phenyl group having an alkyl group having 1 to 10 carbon atoms as a substituent, and still more preferably a mesityl group.
- neutral electron-donating compound examples include oxygen atoms, water, carbonyls, ethers, nitriles, esters, phosphines, phosphinites, phosphites, sulfoxides, thioethers, amides, and imines. , aromatics, cyclic diolefins, olefins, isocyanides, and thiocyanates.
- R 1 , R 2 , X 1 , X 2 , L 1 and L 2 are each alone and/or combined with each other in any combination to form a polydentate chelate ligands may be formed.
- Z is an oxygen atom, a sulfur atom, a selenium atom, NR 12 , PR 12 or AsR 12 , and R 12 is a hydrogen atom; a halogen atom; or a halogen atom, an oxygen atom, a nitrogen atom , an organic group having 1 to 20 carbon atoms which may contain a sulfur atom, a phosphorus atom or a silicon atom; however, Z is preferably an oxygen atom because the effects of the present invention are more pronounced.
- R 1 , R 2 , X 1 and L 1 are the same as in the general formulas (1) and (2) above, and are each alone and/or combined in any combination to form polydentate
- a chelating ligand may be formed, but X 1 and L 1 do not form a multidentate chelating ligand, and R 1 and R 2 are bonded to each other to form a ring.
- an optionally substituted indenylidene group is more preferred, and a phenylindenylidene group is even more preferred.
- organic group having 1 to 20 carbon atoms which may contain a halogen atom, an oxygen atom, a nitrogen atom, a sulfur atom, a phosphorus atom or a silicon atom include those represented by the general formulas (1) and (2). It is the same as the case.
- R 7 and R 8 each independently represent a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, an alkenyl group having 2 to 20 carbon atoms, or a heteroaryl group having 6 to 20 carbon atoms. These groups may have substituents and may be bonded to each other to form a ring. Examples of substituents include alkyl groups having 1 to 10 carbon atoms, alkoxy groups having 1 to 10 carbon atoms and aryl groups having 6 to 10 carbon atoms.
- ⁇ may be either an alicyclic ring or a heterocyclic ring, preferably forming an aromatic ring, more preferably forming an aromatic ring having 6 to 20 carbon atoms, forming an aromatic ring having 6 to 10 carbon atoms more preferably.
- R 9 , R 10 and R 11 each independently contain a hydrogen atom; a halogen atom; or a halogen atom, an oxygen atom, a nitrogen atom, a sulfur atom, a phosphorus atom or a silicon atom; an organic group having 1 to 20 carbon atoms which may be substituted; and these groups may have a substituent and may be bonded to each other to form a ring.
- Specific examples of the organic group having 1 to 20 carbon atoms which may contain a halogen atom, an oxygen atom, a nitrogen atom, a sulfur atom, a phosphorus atom or a silicon atom include those represented by the above general formulas (1) and (2). It is the same as the case.
- R 9 , R 10 and R 11 are preferably a hydrogen atom or an alkyl group having 1 to 20 carbon atoms, more preferably a hydrogen atom or an alkyl group having 1 to 3 carbon atoms.
- m is 0 or 1.
- m is preferably 1, in which case Q is an oxygen atom, a nitrogen atom, a sulfur atom, a methylene group, an ethylene group or a carbonyl group, preferably a methylene group.
- R 1 , X 1 , X 2 and L 1 are the same as in the general formulas (1) and (2) above, and are each alone and/or combined in any combination to form a multidentate chelating Although they may form ligands, it is preferred that X 1 , X 2 and L 1 do not form a multidentate chelating ligand and R 1 is a hydrogen atom.
- R 13 to R 21 are a hydrogen atom; a halogen atom; or an organic group having 1 to 20 carbon atoms which may contain a halogen atom, an oxygen atom, a nitrogen atom, a sulfur atom, a phosphorus atom or a silicon atom; The group may have a substituent and may be bonded to each other to form a ring.
- specific examples of the organic group having 1 to 20 carbon atoms which may contain a halogen atom, an oxygen atom, a nitrogen atom, a sulfur atom, a phosphorus atom or a silicon atom include those represented by the general formulas (1) and (2). It is the same as the case.
- R 13 is preferably an alkyl group having 1 to 20 carbon atoms, more preferably an alkyl group having 1 to 3 carbon atoms, R 14 to R 17 are preferably hydrogen atoms, and R 18 to R 21 are A hydrogen atom or a halogen atom is preferred.
- the content of the metathesis polymerization catalyst is preferably 0.005 millimoles or more, more preferably 0.01 to 50 millimoles, still more preferably 0.015 to 0.015 millimoles, per 1 mole of the total amount of polymerizable monomers used in the reaction. 20 millimoles.
- the polymerizable composition used in the present invention may optionally contain a radical generator, a diisocyanate compound, a polyfunctional (meth)acrylate compound, a coupling agent and other optional components.
- the radical generator has the effect of generating radicals by heating, thereby inducing a cross-linking reaction in the norbornene-based resin formed by bulk polymerization.
- the site where the radical generator induces the cross-linking reaction is mainly the carbon-carbon double bond contained in the norbornene-based resin, but the cross-linking may occur even at the saturated bond part.
- Examples of radical generators include organic peroxides, diazo compounds and non-polar radical generators.
- the amount of the radical generator in the polymerizable composition used in the present invention is preferably 0.1 to 10 parts by mass, more preferably 0.5 parts by mass, with respect to 100 parts by mass of the total amount of polymerizable monomers used in the reaction. ⁇ 5 parts by mass.
- Diisocyanate compounds include, for example, 4,4'-diphenyldiphenyl diisocyanate (MDI), toluene-2,4-diisocyanate, 4-methoxy-1,3-phenylene diisocyanate, 4-isopropyl-1,3-phenylene diisocyanate, 4-chloro-1,3-phenylene diisocyanate, 4-butoxy-1,3-phenylene diisocyanate, 2,4-diisocyanate diphenyl ether, 1,4-phenylene diisocyanate, tolylene diisocyanate, xylylene diisocyanate (XDI), 1,5 - aromatic diisocyanate compounds such as naphthalene diisocyanate, benzidine diisocyanate, o-nitrobenzidine diisocyanate, and 4,4'-diisocyanate dibenzyl; methylene diisocyanate, 1,4-tetramethylene diisocyanate, 1,
- polyurethane prepolymers obtained by reacting these diisocyanate compounds with low-molecular-weight polyols or polyamines so that the terminals are isocyanates.
- the isocyanurate, biuret, adduct, or polymeric form of these compounds having a polyfunctional isocyanate group which has been conventionally used, can be used without particular limitation.
- Examples thereof include dimers of 2,4-toluylene diisocyanate, triphenylmethane triisocyanate, tris-(p-isocyanatophenyl) thiophosphite, polyfunctional aromatic isocyanate compounds, polyfunctional aromatic Aliphatic isocyanate compounds, polyfunctional aliphatic isocyanate compounds, fatty acid-modified polyfunctional aliphatic isocyanate compounds, polyfunctional blocked isocyanate compounds such as blocked polyfunctional aliphatic isocyanate compounds, and polyisocyanate prepolymers.
- aromatic diisocyanate compounds aliphatic diisocyanate compounds, and alicyclic diisocyanate compounds, which are polyfunctional unblocked isocyanate compounds, are preferably used because of their excellent availability and ease of handling. These compounds can be used alone or in combination of two or more.
- the polyfunctional blocked isocyanate compound is one in which at least two isocyanate groups in the molecule are reacted with an active hydrogen-containing compound to be inactive at room temperature.
- the isocyanate compound generally has a structure in which the isocyanate group is masked with a blocking agent such as alcohols, phenols, ⁇ -caprolactam, oximes, and active methylene compounds.
- Polyfunctional blocked isocyanate compounds generally do not react at room temperature and therefore have excellent storage stability. However, heating at 140 to 200° C. usually regenerates the isocyanate groups and can exhibit excellent reactivity.
- the diisocyanate compounds may be used alone or in combination of two or more.
- the amount of the diisocyanate compound in the polymerizable composition used in the present invention is preferably 0.5 to 20 parts by mass, more preferably 1 to 15 parts by mass, with respect to 100 parts by mass of the total amount of polymerizable monomers used in the reaction. parts, more preferably 2 to 10 parts by mass.
- a polyfunctional (meth)acrylate compound may also be used from the viewpoint of further improving the bonding strength to metal materials.
- a polyfunctional (meth)acrylate compound together with a diisocyanate compound the active hydrogen reactive group of the diisocyanate compound forms a chemical bond with the hydroxyl group present in the polyfunctional (meth)acrylate compound, thereby bonding to the metal material. It is presumed that the strength can be further increased.
- Preferred examples of polyfunctional (meth)acrylate compounds include ethylene glycol dimethacrylate, triethylene glycol dimethacrylate, trimethylolpropane trimethacrylate and neopentyl glycol dimethacrylate.
- the polyfunctional (meth)acrylate compounds may be used alone or in combination of two or more.
- the amount of the polyfunctional (meth)acrylate compound in the polymerizable composition is preferably 0.5 to 20 parts by mass, more preferably 1 to 15 parts by mass with respect to 100 parts by mass of the total amount of polymerizable monomers used in the reaction. parts by mass, more preferably 2 to 10 parts by mass.
- silane coupling agent is not particularly limited, a silane coupling agent having at least one hydrocarbon group having a norbornene structure (norbornene skeleton) is preferable from the viewpoint of improving the adhesion between the metal material and the norbornene-based resin.
- silane coupling agents include bicycloheptenyltrimethoxysilane, bicycloheptenyltriethoxysilane, bicycloheptenylethyltrimethoxysilane, bicycloheptenylethyltriethoxysilane, bicycloheptenylhexyltrimethoxysilane, and bicycloheptenylhexyltrimethoxysilane.
- heptenylhexyltriethoxysilane and the like, preferably bicycloheptenylethyltrimethoxysilane, bicycloheptenylethyltriethoxysilane, bicycloheptenylhexyltrimethoxysilane, and bicycloheptenylhexyltriethoxysilane; Bicycloheptenylethyltrimethoxysilane and bicycloheptenylethyltriethoxysilane are preferred, and bicycloheptenylethyltrimethoxysilane is more preferred.
- the content of the silane coupling agent having at least one hydrocarbon group having a norbornene structure in the polymerizable composition used in the present invention is preferably 0.1 to 5% by mass, more preferably 0.3. 2% by mass, more preferably 0.5 to 1% by mass.
- the polymerizable composition includes a silane coupling agent having no hydrocarbon group having a norbornene structure, a thiol coupling agent, an aluminate coupling agent, a titanate coupling agent, a silane coupling agent such as fatty acid esters. It may contain a coupling agent other than
- activators activators, activity regulators, elastomers, antioxidants (anti-aging agents), colorants, light stabilizers, flame retardants, and the like.
- the activator is a compound that acts as a cocatalyst for the metathesis polymerization catalyst described above and improves the polymerization activity of the catalyst.
- the activator include alkylaluminum halides such as ethylaluminum dichloride and diethylaluminum chloride; alkoxyalkylaluminum halides obtained by substituting part of the alkyl groups of these alkylaluminum halides with alkoxy groups; and organic tin compounds.
- the amount of the activator used is not particularly limited, but is preferably 0.1 to 100 mol, more preferably 1 to 10 mol, per 1 mol of the total metathesis polymerization catalyst used in the polymerizable composition.
- the activity modifier prevents the polymerization from starting during the injection when the polymerizable composition is prepared by mixing two or more reaction stock solutions as described later and injected into a mold to initiate polymerization. used for
- examples of the activity regulator include compounds having a reducing action on the metathesis polymerization catalyst, alcohols, haloalcohols, Esters, ethers, nitriles and the like can be used. Among them, alcohols and haloalcohols are preferred, and haloalcohols are more preferred.
- alcohols include n-propanol, n-butanol, n-hexanol, 2-butanol, isobutyl alcohol, isopropyl alcohol, and t-butyl alcohol.
- haloalcohols include 1,3-dichloro-2-propanol, 2-chloroethanol, 1-chlorobutanol and the like.
- a Lewis base compound can be mentioned as an activity regulator especially when using a ruthenium carbene complex.
- Lewis base compounds containing phosphorus atoms such as tricyclopentylphosphine, tricyclohexylphosphine, triphenylphosphine, triphenylphosphite, n-butylphosphine; n-butylamine, pyridine, 4-vinylpyridine, acetonitrile, Lewis base compounds containing a nitrogen atom such as ethylenediamine, N-benzylidenemethylamine, pyrazine, piperidine, imidazole, and the like.
- alkenyl-substituted norbornenes such as vinylnorbornene, propenylnorbornene and isopropenylnorbornene act as polymerizable monomers as well as activity modifiers.
- the amount of these activity regulators to be used may be appropriately adjusted depending on the compound used.
- elastomers examples include natural rubber, polybutadiene, polyisoprene, styrene-butadiene copolymer (SBR), styrene-butadiene-styrene copolymer (SBS), styrene-isoprene-styrene copolymer (SIS), ethylene- Propylene-diene terpolymer (EPDM), ethylene-vinyl acetate copolymer (EVA), hydrides thereof, and the like.
- SBR styrene-butadiene copolymer
- SBS styrene-butadiene-styrene copolymer
- SIS ethylene- Propylene-diene terpolymer
- EVA ethylene-vinyl acetate copolymer
- the impact resistance of the norbornene-based resin formed by bulk polymerization of the composition can be improved.
- the amount of elastomer used is preferably 0.5 to 20 parts by mass, more preferably 2 to 10 parts by mass, based on 100 parts by mass of the total amount of polymerizable monomers in the polymerizable composition.
- Antioxidants include various antioxidants for plastics and rubber, such as phenolic, phosphorus, and amine antioxidants.
- Anionic surfactants, cationic surfactants and nonionic surfactants can be optionally used as dispersants, but nonionic surfactants are preferred.
- Dyes, pigments, etc. are used as coloring agents. There are various types of dyes, and known dyes may be appropriately selected and used. Examples of pigments include carbon black, graphite, yellow lead, yellow iron oxide, titanium dioxide, zinc oxide, trilead tetroxide, red lead, chromium oxide, Prussian blue, and titanium black.
- Light stabilizers include, for example, benzotriazole UV absorbers, benzophenone UV absorbers, salicylate UV absorbers, cyanoacrylate UV absorbers, oxanilide UV absorbers, hindered amine UV absorbers, and benzoate UV absorbers. agents and the like.
- Flame retardants include phosphorus-based flame retardants, nitrogen-based flame retardants, halogen-based flame retardants, and metal hydroxide-based flame retardants such as aluminum hydroxide or magnesium hydroxide.
- a filler may be added as an optional component to the polymerizable composition used in the present invention.
- Various fillers can be used as the filler, and there is no particular limitation, but an inorganic filler consisting of a fibrous filler having an aspect ratio of 5 to 100 or a particulate filler having an aspect ratio of 1 to 2 is used. is preferred.
- the aspect ratio of the filler refers to the ratio of the average major axis diameter to the 50% volume cumulative diameter of the filler.
- the average major axis diameter is the number average major axis diameter calculated as the arithmetic mean value of measuring the major axis diameters of 100 randomly selected fillers in optical micrographs.
- the volume cumulative diameter is a value obtained by measuring the particle size distribution by an X-ray transmission method.
- the surface of the filler is treated to be hydrophobic.
- the thermosetting resin preferably does not contain a filler from the viewpoint of increasing the adhesive strength with the metal material. It is preferable to use one containing no filler.
- the amount of the filler is preferably 5 to 55 parts by mass with respect to 100 parts by mass of the total amount of the norbornene-based monomer and the metathesis polymerization catalyst. More preferably, it is up to 45 parts by mass.
- the polymerizable composition used in the present invention is prepared by appropriately mixing the above components according to a known method.
- two or more pre-mixed liquids are prepared, and the two or more pre-mixed liquids are mixed using a mixing device or the like immediately before bulk polymerization to form a norbornene-based resin.
- the preliminary compounding liquid is mixed so that bulk polymerization does not occur with only one liquid, but when all the liquids are mixed, a polymerizable composition containing each component in a predetermined ratio (total content of each component is 100% by mass). It is prepared by dividing each component into two or more liquids.
- the following two types (a) and (b) are exemplified depending on the type of metathesis polymerization catalyst to be used.
- a preliminary compounding liquid (solution A) containing a polymerizable monomer containing a norbornene-based monomer and an activator and a preliminary compounding solution (solution B) containing a polymerizable monomer containing a norbornene-based monomer and a metathesis polymerization catalyst ) can be used and mixed to obtain a polymerizable composition.
- a premixed liquid (liquid C) containing a polymerizable monomer containing a norbornene-based monomer and containing neither a metathesis polymerization catalyst nor an activator may be used in combination.
- the preliminary blending liquid (i) containing a polymerizable monomer containing a norbornene-based monomer and the preliminary blending liquid containing a metathesis polymerization catalyst A polymerizable composition can be obtained by mixing (ii).
- the preliminary compounding liquid (ii) a solution obtained by dissolving or dispersing a metathesis polymerization catalyst in a small amount of an inert solvent is usually used.
- solvents examples include aromatic hydrocarbons such as toluene, xylene, ethylbenzene and trimethylbenzene; cyclic ethers such as tetrahydrofuran; diethyl ether, dichloromethane, dimethylsulfoxide, ethyl acetate and the like.
- Optional components such as radical generators, diisocyanate compounds, polyfunctional (meth)acrylate compounds, etc. may be contained in any of the above preliminary blended liquids, or may be added in the form of a mixed liquid other than the above preliminary blended liquids. good too.
- Examples of the mixing device used for mixing the premixed liquid include impingement mixers generally used in reaction injection molding, as well as low-pressure mixers such as dynamic mixers and static mixers.
- the metal-resin laminate of the present invention has a shear adhesive strength of 10 MPa or more between the metal material and the thermosetting resin.
- the shear adhesive strength between the metal material and the thermosetting resin is 10 MPa or more, the thermosetting resin can be firmly bonded to the surface of the metal material.
- the method for increasing the shear adhesive strength between the metal material and the thermosetting resin to 10 MPa or more is not particularly limited. A manufacturing method and the like can be mentioned.
- the shear adhesive strength between the metal material and the thermosetting resin should be 10 MPa or more, preferably 20 MPa or more, and more preferably 30 MPa or more. Although the upper limit of the shear adhesive strength is not particularly limited, it is usually 35 MPa or less.
- the shear adhesive strength between the metal material and the thermosetting resin can be measured according to SEMI G69-0996. Specifically, for a metal-resin laminate obtained by laminating a metal material and a thermosetting resin (a metal-resin laminate obtained by laminating a thermosetting resin on a part of the surface of a metal material), bonding Using a strength evaluation device (bond tester) (SS30WD, manufactured by Seishin Shoji Co., Ltd.), the shear rate (the speed at which shear is applied by moving the shear tool toward the thermosetting resin) 0.12 mm /min, and the distance between the surface of the metal material and the tip of the shear tool is 50 ⁇ m.
- a strength evaluation device bond tester
- such measurements may be performed on five samples, and the average value thereof may be taken as the shear adhesive strength.
- the shear adhesive strength measured by such a measurement method indicates the adhesive strength when shear force is applied, and the adhesive strength required in applications where shear force is applied, such as sealant applications. , which is different from the bonding strength measured by a tensile test.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2010-274600
- the actual situation is that the shear adhesive strength is not necessarily sufficient.
- the metal-resin laminate of the present invention may have another layer (additional layer) in addition to the above-described metal material and the above-described thermosetting resin layer.
- the metal-resin laminate of the present invention may comprise, in this order, the metal material described above, a layer made of the thermosetting resin described above, and an additional layer.
- additional layers include various adherends such as metals, glasses, and plastics.
- the shape of the adherend is not particularly limited, and examples thereof include films, sheets, plates, panels, trays, rods, boxes, and housings.
- Metals include steel, stainless steel, aluminum, copper, nickel, chromium and their alloys. In addition, it can also be applied to composite materials having a metal plating layer on the surface. good.
- glass examples include alkali glass, alkali-free glass, and quartz glass.
- Polyolefin resins such as polyethylene and polypropylene; polyamide resins such as nylon; aromatic polyester resins such as polyethylene terephthalate (PET); acrylic resins such as polyacrylonitrile (PAN); Polyvinyl resins such as polyvinyl alcohol (PVA), vinyl alcohol/ethylene copolymer (EVOH), polyvinylidene chloride (PVDC), polyvinyl chloride (PVC);
- such an additional layer may contain, for example, the above-described filler, and is used for laminating on the above-described metal material in a state of being laminated with the layer made of the thermosetting resin. (eg, a support, etc.).
- the metal-resin laminate of the present invention can be produced, for example, by the following method for producing a metal-resin laminate of the present invention. That is, the method for producing a metal-resin laminate of the present invention includes: A method for producing a metal-resin laminate obtained by laminating a metal material and a thermosetting resin, A first step of preparing a metal material having an oxide layer with a thickness of 2 nm or more on the surface and a center line average surface roughness Ra of 1.5 nm or more; a second step of bringing an acid into contact with the metal material prepared in the first step; A third step of bringing a thermosetting resin material into contact with the surface of the metal material that has been brought into contact with the acid in the second step and curing the material.
- the first step of the manufacturing method of the present invention is a step of preparing a metal material having an oxide layer with a thickness of 2 nm or more on the surface and a center line average surface roughness Ra of 1.5 nm or more.
- oxide layer-forming metal material a metal material having an oxide layer with a thickness of 2 nm or more on the surface and a center line average surface roughness Ra of 1.5 nm or more (hereinafter referred to as "oxide layer-forming metal material" as appropriate).
- a method of oxidizing an untreated metal material that does not have such an oxide layer and center line average surface roughness Ra is oxidized in air or in liquid.
- a commercially available metal material may be used as it is as long as it has an oxide layer with a thickness of 2 nm or more on the surface and a center line average surface roughness Ra of 1.5 nm or more.
- the untreated metal material is heated in the air so that the thickness of the oxide layer and the center line average surface roughness Ra are within the above ranges.
- a heating means such as an oven or a hot plate
- an untreated metal material is cut using a laser or the like.
- a method of utilizing heating by irradiating a laser, etc., can be mentioned.
- the heating temperature in the aerial oxidation method is not particularly limited, but is preferably 80 to 300°C, more preferably 100 to 250°C, still more preferably 150 to 200°C.
- the heating time is preferably 10 seconds to 3 hours, more preferably 30 seconds to 1 hour, and even more preferably 60 seconds to 1 hour.
- the temperature of the metal material in a state where the temperature is raised by laser irradiation should be within the above range, and the laser irradiation time should be within the above range.
- the method of oxidizing an untreated metal material in a liquid is not particularly limited, but includes a method of bringing the untreated metal material into contact with a treatment liquid containing an oxidizing agent.
- Examples of the method of contacting an untreated metal material with a treatment liquid containing an oxidant include a method of immersing an untreated metal material in a treatment liquid containing an oxidant, and a method of immersing an untreated metal material in a treatment liquid containing an oxidant. Examples include a method of applying a treatment liquid containing an oxidizing agent to the surface.
- the oxidizing agent is not particularly limited, but for example, sodium chlorite, sodium hypochlorite, potassium chlorate, potassium perchlorate, etc. can be used, and these can be used in the form of an aqueous solution.
- Various additives for example, phosphates such as trisodium phosphate dodecahydrate
- surface active molecules may be added to the treatment liquid containing the oxidizing agent.
- Surface active molecules include, for example, porphyrins, porphyrin macrocycles, extended porphyrins, ring contracted porphyrins, linear porphyrin polymers, porphyrin sandwich coordination complexes, porphyrin sequences, silanes, tetraorgano-silanes, aminoethyl-aminopropyl-tri Methoxysilane, (3-aminopropyl)trimethoxysilane, (1-[3-(trimethoxysilyl)propyl]urea) ((l-[3-(Trimethoxysilyl)propyl]urea)), (3-aminopropyl) triethoxysilane, ((3-glycidyloxypropyl)trimethoxysilane), (3-chloropropyl)trimethoxysilane, (3-glycidyloxypropyl)trimethoxysilane, dimethyldichlorosilane, 3-(trimethoxy
- the treatment conditions in the method of in-liquid oxidation are not particularly limited, but the temperature of the treatment liquid containing the oxidizing agent is preferably 40 to 95° C., more preferably 45 to 80° C., and the reaction time is preferably 0. 5 to 30 minutes, more preferably 1 to 10 minutes.
- the thickness of the oxide layer formed on the surface of the oxide layer-forming metal material prepared in the first step may be 2 nm or more. It is preferably 10 nm or more, more preferably 20 nm or more, particularly preferably 30 nm or more, still more preferably 40 nm or more, and even more preferably 50 nm or more, from the viewpoint of making the bond with the resin stronger. It is usually 300 nm.
- the center line average surface roughness Ra of the oxide layer-forming metal material prepared in the first step may be 1.5 nm or more.
- the thickness is preferably 2.5 nm or more, more preferably 5 nm or more, and preferably 30 nm or less, more preferably 20 nm or less, from the viewpoint of making the bonding with the layer more firm.
- the metal material for forming an oxide layer prepared in the first step may have a center line average surface roughness Ra within the above range.
- the ten-point average surface roughness Rz is preferably 2 nm or more, more preferably 40 nm or more, particularly preferably 50 nm or more, and more preferably 150 nm or less. is 100 nm or less.
- an X-ray photoelectron spectrometer for example, product name “JPS-9200S”, manufactured by JEOL Ltd.
- carbon atoms (C), oxygen atoms (O), and metal Atoms when the metal material is copper, copper atoms (Cu)
- the depth of oxygen atoms is obtained as the distance (nm) in terms of SiO2 , and this is measured as the thickness of the oxide layer. can do.
- the center line average surface roughness Ra and the ten-point average surface roughness Rz of the oxide layer-forming metal material were measured using a scanning probe microscope (for example, product name "SPM9700" manufactured by Shimadzu Corporation). It can be measured by observing the surface of the oxide layer-forming metal material in a scanning area of 1 ⁇ m square using a mode.
- the untreated metal material when the untreated metal material is oxidized in air or in liquid to obtain an oxide layer-forming metal material, the untreated The metal material may be subjected to degreasing treatment.
- degreasing methods include alkali degreasing, solvent degreasing, emulsion degreasing, electrolytic degreasing, and mechanical degreasing. are preferably mentioned.
- the untreated metal material used in the first step usually has an oxide layer due to natural oxidation
- the untreated metal material is oxidized in air or in liquid. Therefore, when obtaining an oxide layer-forming metal material, the oxide layer formed by natural oxidation was removed in advance before performing oxidation in air or oxidation in liquid, and the oxide layer formed by natural oxidation was removed.
- An untreated metal material may be oxidized in air or liquid to form an oxide layer-forming metal material. Removal of the oxide layer formed by natural oxidation includes, for example, a method of contacting the surface of the untreated metal material with an acid such as sulfuric acid, hydrochloric acid, and nitric acid.
- a method of washing (acid washing) in an aqueous solution containing an acid such as hydrochloric acid and nitric acid is preferred.
- a degreasing treatment may be performed as necessary, and examples of the degreasing treatment include the methods described above.
- the second step of the manufacturing method of the present invention is a step of bringing an acid into contact with the oxide layer-forming metal material prepared in the first step. According to the second step, the oxide layer formed on the surface of the oxide layer-forming metal material is removed by contacting the oxide layer-forming metal material with an acid, thereby treating the surface of the metal material. It is.
- the oxide layer-forming metal material prepared in the first step has an oxide layer with a thickness of 2 nm or more on the surface and a center line average surface roughness Ra of 1.5 nm or more.
- the oxide layer is removed from the oxide layer-forming metal material having such an oxide layer and the center line average surface roughness Ra, and the surface of the metal material exposed by the removal of the oxide layer is It has a surface state suitable for bonding with a thermosetting resin (appropriately roughened surface).
- the center line average surface roughness Ra of the acid-treated metal material (the metal material from which the oxide layer has been removed) that has been brought into contact with an acid is preferably 5 nm or more, and more Preferably, the surface is roughened to 5 to 100 nm, more preferably 5 to 50 nm, even more preferably 5 to 30 nm, and particularly preferably 8 to 27 nm. Then, according to the manufacturing method of the present invention, by laminating the thermosetting resin on the metal material having such a surface state, the metal resin in which the thermosetting resin is firmly bonded to the surface of the metal material A laminate can be obtained.
- the metal material after the acid treatment brought into contact with the acid should have a center line average surface roughness Ra within the above range, but the ten-point average surface roughness Rz should be 20 nm or more. is preferably 30 to 300 nm, still more preferably 40 to 200 nm, and even more preferably 55 to 180 nm.
- the method of bringing the oxide layer-forming metal material into contact with the acid is not particularly limited as long as it can remove the oxide layer formed on the surface of the oxide layer-forming metal material.
- a method of washing the layer-forming metal material in an acid-containing aqueous solution is preferred.
- Acids include, for example, sulfuric acid, hydrochloric acid, nitric acid, and the like.
- the concentration of the acid in the aqueous solution containing the acid used for acid cleaning is not particularly limited. % by mass, more preferably 5 to 10% by mass.
- the temperature (liquid temperature) of the acid-containing aqueous solution during acid washing is preferably 0 to 60°C, more preferably 20 to 40°C, and the acid washing time is preferably 1 to 10°C. minutes, more preferably 1 to 5 minutes.
- the oxide layer-forming metal material when the oxide layer-forming metal material is brought into contact with the acid, the oxide layer-forming metal material may be subjected to a degreasing treatment before the acid is brought into contact with the oxide layer-forming metal material.
- degreasing methods include alkali degreasing, solvent degreasing, emulsion degreasing, electrolytic degreasing, and mechanical degreasing. are preferably mentioned.
- the third step of the manufacturing method of the present invention is a step of bringing a thermosetting resin material into contact with the surface of the metal material that has been brought into contact with the acid in the above-mentioned second step to cure it.
- the thermosetting resin material (resin material before curing for forming the thermosetting resin) is brought into contact with the acid obtained in the second step to expose the surface.
- the metal material (hereinafter referred to as "acid-treated metal material” as appropriate) is brought into contact with the surface of such an acid-treated metal material and cured to form a metal material and a thermosetting A metal-resin laminate obtained by laminating a resin (a cured product of a thermosetting resin material) can be obtained.
- thermosetting resin material into contact with the surface of the acid-treated metal material and curing it is not particularly limited, but from the viewpoint of productivity, the acid-treated metal material is placed in a mold having a desired shape.
- a preferable method is to inject a thermosetting resin material into the mold in which the metal material is placed after the acid treatment, and to cure the material.
- thermosetting resin of a metal resin laminate obtained by laminating a metal material and a thermosetting resin is composed of a norbornene-based resin
- the above-described polymerizable composition containing a norbornene-based monomer is added to an acid.
- the metal material is injected into a mold, and the surface of the acid-treated metal material is subjected to bulk polymerization and hardening, thereby producing a metal-resin laminate obtained by laminating the metal material and the norbornene-based resin.
- the injection of the polymerizable composition into the mold can be easily performed at room temperature and atmospheric pressure, unlike the technique of Patent Document 1 described above.
- the polymerizable composition containing the norbornene-based monomer is divided into two or more pre-mixed liquids, and the two or more pre-mixed liquids are separately introduced into the impingement mixer, It may be mixed instantaneously with a mixing head and injected into a mold in which the acid-treated metal material is placed. Moreover, when performing bulk polymerization, you may heat as needed.
- thermosetting resin of the metal resin laminate obtained by laminating a metal material and a thermosetting resin is composed of an epoxy resin
- the raw material liquid for forming the epoxy resin two or more raw material liquids If it consists of a mixture of these), it is injected into the mold in which the metal material after acid treatment is placed and heated as necessary to cure it, thereby combining the metal material and epoxy
- a metal-resin laminate obtained by laminating a resin can be obtained.
- a metal material having substantially no oxide layer formed on its surface as the acid-treated metal material.
- the metal material and the thermosetting resin are laminated substantially without an oxide layer intervening. laminated, ie, laminated by direct bonding.
- an oxide layer preferably an oxide layer with a thickness of less than 30 nm, although it varies depending on the type of metal material may be interposed.
- the lamination of the additional layer is performed by bringing the thermosetting resin material into contact with the surface of the acid-treated metal material and hardening it.
- the coating is performed as described above.
- the adherend is placed on the metal material after the acid treatment via the thermosetting resin material, and then the thermosetting resin material is cured, or the thermosetting resin material is injected and once semi-cured. A state (so-called B stage) is obtained, and then the adherend as described above is placed on the acid-treated metal material via a semi-cured thermosetting resin material, and the material is It can be carried out by completely curing.
- the metal-resin laminate of the present invention thus obtained has a thermosetting resin firmly bonded to the surface of the metal material. Therefore, the metal-resin laminate of the present invention can be suitably applied to a wide range of applications that require integration of a metal material and a resin. Since the bonding with the resin is strong, high reliability can be realized when used for various purposes.
- a copper plate having a copper oxide layer (oxide layer-forming metal material) and a copper plate after cleaning with sulfuric acid (acid-treated metal material) were examined using a scanning probe microscope (product name “SPM9700” manufactured by Shimadzu Corporation). Then, the contact mode was used, and the surface was observed and measured in a scanning area of 1 ⁇ m square.
- the shear adhesive strength between the copper plate (metal material) and the thermosetting resin was measured according to SEMI G69-0996. Specifically, for the metal resin laminate sample, using a bonding strength evaluation device (bond tester) (SS30WD, manufactured by Seishin Shoji Co., Ltd.), the shear rate (sharing tool is moved toward the thermosetting resin Then, the measurement was performed under the conditions of a shearing speed of 0.12 mm/min and a distance of 50 ⁇ m between the surface of the metal material and the tip of the shear tool. Such measurements were performed for five samples, and the average value was taken as the shear adhesive strength.
- bond tester bonding strength evaluation device
- Example 1 A copper plate with a thickness of 1 mm and 10 mm square (product name “C1100”, manufactured by Mitsubishi Materials Corporation) is immersed in acetone at room temperature for 1 minute to perform acetone degreasing, and then washed with deionized water. and dried under vacuum for 1 minute. Next, the copper plate that has been degreased with acetone is placed on a hot plate at a temperature of 190° C. and heated in the air for 1 minute to oxidize and form a copper oxide layer on the surface, thereby removing copper. A copper plate having an oxide layer (an oxide layer-forming metal material) was obtained.
- the center line average surface roughness Ra, the ten point average surface roughness Rz, the copper oxide layer (oxide layer) thickness was measured. Table 1 shows the measurement results.
- the obtained copper plate having a copper oxide layer (metal material for forming an oxide layer) is immersed in acetone at room temperature for 1 minute to perform acetone degreasing, followed by washing with deionized water. , dried under vacuum for 1 min.
- a copper plate having a copper oxide layer (metal material for forming an oxide layer) that has been degreased with acetone is immersed in a 1% Shikaclean LX-III aqueous solution (1% alkaline aqueous solution) for 5 minutes at room temperature.
- Shikaclean LX-III aqueous solution 1% alkaline aqueous solution
- a copper plate having a copper oxide layer that has undergone alkali degreasing (metal material for forming an oxide layer) is immersed in a 10% sulfuric acid aqueous solution for 5 minutes to wash with sulfuric acid, thereby removing the copper oxide layer. Then, it was washed with ion-exchanged water and dried under vacuum for 1 minute to obtain a copper plate after washing with sulfuric acid (metal material after acid treatment).
- the center line average surface roughness Ra, the ten-point average surface roughness Rz, and the thickness of the copper oxide layer (oxide layer) were measured according to the above method. I made a measurement. Table 1 shows the measurement results.
- the composition of the above RIM monomer consists of about 90 parts of dicyclopentadiene and about 10 parts of tricyclopentadiene. (In the formula, Mes represents a mesityl group.)
- Example 2 A copper plate having a copper oxide layer (oxide layer-forming metal material) in the same manner as in Example 1, except that the heating time in air was changed to 5 minutes using a hot plate at a temperature of 190 ° C. A copper plate after washing with sulfuric acid (metal material after acid treatment) and a metal resin laminate were obtained and evaluated in the same manner. Table 1 shows the results.
- Example 3 A copper plate having a copper oxide layer (oxide layer-forming metal material) in the same manner as in Example 1, except that the heating time in air was changed to 60 minutes using a hot plate at a temperature of 190 ° C. A copper plate after washing with sulfuric acid (metal material after acid treatment) and a metal resin laminate were obtained and evaluated in the same manner. Table 1 shows the results.
- Example 4 A copper plate having a copper oxide layer (oxide layer-forming metal material) and a copper plate after cleaning with sulfuric acid (metal material after acid treatment) were prepared in the same manner as in Example 3, except that an epoxy resin was used as the thermosetting resin material. , and a metal-resin laminate were obtained and evaluated in the same manner. Table 1 shows the results.
- the epoxy resin the product name "jER828" (manufactured by Mitsubishi Chemical Corporation) was used as the main agent, and "LV11” (manufactured by Mitsubishi Chemical Corporation) was used as the curing agent.
- Example 1 The same copper plate used in Example 1 was degreased with acetone in the same manner as in Example 1, except that it was not heated in air using a hot plate at a temperature of 190 ° C. and was not washed with sulfuric acid. Then, a copper plate with a natural oxide layer formed thereon after being washed with an alkali was laminated with a norbornene-based resin to obtain a metal-resin laminate, which was evaluated in the same manner. Table 1 shows the results.
- Example 2 Copper plate washed with sulfuric acid in the same manner as in Example 1, except that the same copper plate used in Example 1 was not heated in air using a hot plate at a temperature of 190 ° C. (Metal material after acid treatment) and a metal-resin laminate were obtained and evaluated in the same manner. Table 1 shows the results.
- Example 3 A copper plate having a copper oxide layer (metallic material for forming an oxide layer) was obtained in the same manner as in Example 1, and after degreasing with acetone and washing with an alkali in the same manner as in Example 1, washing with sulfuric acid was not performed.
- a copper plate with a copper oxide layer formed on it a metal resin laminate was obtained by laminating a norbornene resin in the same manner as in Example 1, and the same evaluation was performed. Table 1 shows the results.
- a copper plate having a copper oxide layer (an oxide layer-forming metal material) was prepared in the same manner as in Comparative Example 3, except that a hot plate with a temperature of 190° C. was used and the heating time in the air was changed to 5 minutes. After degreasing with acetone and washing with an alkali, a copper plate on which a copper oxide layer is formed is used without washing with sulfuric acid, and is laminated with a norbornene-based resin to obtain a metal-resin laminate. obtained and evaluated in the same way. Table 1 shows the results.
- a copper plate having a copper oxide layer (oxide layer-forming metal material) was prepared in the same manner as in Comparative Example 3, except that the heating time in air was changed to 60 minutes using a hot plate at a temperature of 190 ° C. After degreasing with acetone and washing with an alkali, a copper plate on which a copper oxide layer is formed is used without washing with sulfuric acid, and is laminated with a norbornene-based resin to obtain a metal-resin laminate. obtained and evaluated in the same way. Table 1 shows the results.
- the shear adhesive strength between the metal material and the thermosetting resin is 10 MPa or more, and the thermosetting resin is firmly bonded to the surface of the metal material.
- a resin laminate was obtained (Examples 1 to 4).
- the use of norbornene-based resin as the thermosetting resin was compared with the use of epoxy resin. Therefore, it can be said that the range of improvement in the shear adhesive strength is large.
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Abstract
Description
本発明の金属樹脂積層体において、前記金属材料が、銅、ニッケル、アルミニウム、クロム及び鉄からなる群から選択される少なくとも1種の金属を含むことが好ましい。
本発明の金属樹脂積層体において、前記金属材料が、銅または銅合金であることが好ましい。
本発明の金属樹脂積層体において、前記熱硬化性樹脂が、ノルボルネン系モノマーを含む重合性組成物を塊状重合してなる重合体であることが好ましい。
本発明の金属樹脂積層体は、前記金属材料および前記熱硬化性樹脂からなる層とは別の層をさらに有するものであってもよい。
表面に厚さ2nm以上の酸化物層を有し、かつ中心線平均表面粗さRaが1.5nm以上である金属材料を準備する第1工程と、
前記第1工程で準備した前記金属材料に酸を接触させる第2工程と、
前記第2工程において、酸に接触させた前記金属材料の表面に、熱硬化性樹脂材料を接触させ、硬化させる第3工程と、を備える金属樹脂積層体の製造方法が提供される。
本発明の金属樹脂積層体の製造方法において、前記金属材料が、銅、ニッケル、アルミニウム、クロム及び鉄からなる群から選択される少なくとも1種の金属を含むことが好ましい。
本発明の金属樹脂積層体の製造方法において、前記金属材料が、銅または銅合金であることが好ましい。
本発明の金属樹脂積層体の製造方法において、前記熱硬化性樹脂材料が、ノルボルネン系モノマーを含む重合性組成物であることが好ましい。
本発明の金属樹脂積層体は、金属材料と熱硬化性樹脂とを積層してなる金属樹脂積層体であって、前記金属材料と前記熱硬化性樹脂との間のせん断接着力が10MPa以上であるものである。
また、R3、R4、R5及びR6は任意の組合せで互いに結合して環を形成していてもよい。
また、ハロゲン原子、酸素原子、窒素原子、硫黄原子、リン原子又は珪素原子を含んでいてもよい炭素数1~20の有機基の具体例としては、上記一般式(1)及び(2)の場合と同様である。
これらの化合物は、それぞれ単独で、あるいは2種以上を組み合わせて用いることができる。
本発明の金属樹脂積層体は、例えば、以下の本発明の金属樹脂積層体の製造方法により製造することができる。
すなわち、本発明の金属樹脂積層体の製造方法は、
金属材料と熱硬化性樹脂とを積層してなる金属樹脂積層体を製造する方法であって、
表面に厚さ2nm以上の酸化物層を有し、かつ中心線平均表面粗さRaが1.5nm以上である金属材料を準備する第1工程と、
前記第1工程で準備した前記金属材料に酸を接触させる第2工程と、
前記第2工程において、酸に接触させた前記金属材料の表面に、熱硬化性樹脂材料を接触させ、硬化させる第3工程と、を備える。
本発明の製造方法の第1工程は、表面に厚さ2nm以上の酸化物層を有し、かつ中心線平均表面粗さRaが1.5nm以上である金属材料を準備する工程である。
本発明の製造方法の第2工程は、上述した第1工程で準備した酸化物層形成金属材料に酸を接触させる工程である。第2工程によれば、酸化物層形成金属材料に酸を接触させることで、酸化物層形成金属材料の表面に形成された酸化物層を除去し、これにより、金属材料の表面を処理するものである。
本発明の製造方法の第3工程は、上述した第2工程において、酸に接触させた金属材料の表面に、熱硬化性樹脂材料を接触させ、硬化させる工程である。第3工程によれば、熱硬化性樹脂材料(熱硬化性樹脂を形成するための硬化前の樹脂材料)を、第2工程において得られた、酸と接触させることで、その表面を露出させた金属材料(以下、適宜、「酸処理後金属材料」とする。)に対し、このような酸処理後金属材料の表面に接触させた状態とし、硬化させることにより、金属材料と熱硬化性樹脂(熱硬化性樹脂材料の硬化物)とを積層してなる金属樹脂積層体を得ることができる。
銅酸化物層を有する銅板(酸化物層形成金属材料)、及び、硫酸洗浄後の銅板(酸処理後金属材料)について、走査型プローブ顕微鏡(製品名「SPM9700」、島津製作所社製)を用いて、コンタクトモードを使用し、走査領域1μm角にて、表面観察を行い、測定した。
銅酸化物層を有する銅板(酸化物層形成金属材料)、及び、硫酸洗浄後の銅板(酸処理後金属材料)について、X線光電子分光装置(製品名「JPS-9200S」、日本電子社製)を使用し、炭素原子(C)、酸素原子(O)、及び銅原子(Cu)の分析を行い、SiO2換算での距離(nm)として酸素原子の深さを求め、これを銅酸化物層(酸化物層)の厚みとした。
銅板(金属材料)と熱硬化性樹脂とのせん断接着力は、SEMI G69-0996に準じて測定した。具体的には、金属樹脂積層体サンプルについて、接合強度評価装置(ボンドテスター)(SS30WD、西進商事株式会社製)を用いて、せん断速度(シェアツールを、熱硬化性樹脂に向けて移動させることで、シェアを掛ける際の速度)0.12 mm/min、金属材料表面とシェアツール先端との距離50μmの条件にて測定を行った。このような測定を5個のサンプルについて行い、その平均値を、せん断接着力とした。
厚さ1mm、10mm角の銅板(製品名「C1100」、三菱マテリアル社製)を、室温にて、アセトン中に1分間浸漬させることで、アセトン脱脂を行った後、イオン交換水を用いて水洗を行い、真空下で1分間乾燥させた。次いで、アセトン脱脂を行った銅板を、温度190℃としたホットプレート上に静置し、空気中にて、1分間加熱することで酸化させ、表面に銅酸化物層を形成することで、銅酸化物層を有する銅板(酸化物層形成金属材料)を得た。得られた銅酸化物層を有する銅板(酸化物層形成金属材料)について、上記方法にしたがって、中心線平均表面粗さRa、十点平均表面粗さRz、銅酸化物層(酸化物層)の厚みの測定を行った。測定結果を表1に示す。
温度190℃としたホットプレートを用いた、空気中での加熱時間を5分に変更した以外は、実施例1と同様にして、銅酸化物層を有する銅板(酸化物層形成金属材料)、硫酸洗浄後の銅板(酸処理後金属材料)、及び金属樹脂積層体を得て、同様に評価を行った。結果を表1に示す。
温度190℃としたホットプレートを用いた、空気中での加熱時間を60分に変更した以外は、実施例1と同様にして、銅酸化物層を有する銅板(酸化物層形成金属材料)、硫酸洗浄後の銅板(酸処理後金属材料)、及び金属樹脂積層体を得て、同様に評価を行った。結果を表1に示す。
熱硬化樹脂材料として、エポキシ樹脂を使用した以外は、実施例3と同様にして、銅酸化物層を有する銅板(酸化物層形成金属材料)、硫酸洗浄後の銅板(酸処理後金属材料)、及び金属樹脂積層体を得て、同様に評価を行った。結果を表1に示す。なお、実施例4においては、エポキシ樹脂として、主剤として製品名「jER828」(三菱ケミカル社製)、硬化剤として「LV11」(三菱ケミカル社製)を使用し、主剤:硬化剤を100:33の質量比で室温で混合した重合性組成物を常温常圧で型内に注入した後、室温で24時間静置後、オーブンにて80℃にて3時間加熱することで、金属樹脂積層体を得た。
実施例1で用いたのと同じ銅板に対し、温度190℃としたホットプレートを用いた、空気中での加熱および硫酸洗浄を行わなかったこと以外は、実施例1と同様にして、アセトン脱脂及びアルカリ洗浄を行い、自然酸化物層が形成された状態のままの銅板を用い、ノルボルネン系樹脂と積層させることで、金属樹脂積層体を得て、同様に評価を行った。結果を表1に示す。
実施例1で用いたのと同じ銅板に対し、温度190℃としたホットプレートを用いた、空気中での加熱を行わなかったこと以外は、実施例1と同様にして、硫酸洗浄後の銅板(酸処理後金属材料)、及び金属樹脂積層体を得て、同様に評価を行った。結果を表1に示す。
実施例1と同様にして、銅酸化物層を有する銅板(酸化物層形成金属材料)を得て、実施例1と同様にして、アセトン脱脂及びアルカリ洗浄を行った後、硫酸洗浄を行わずに、銅酸化物層が形成された状態のままの銅板を用い、実施例1と同様にして、ノルボルネン系樹脂と積層させることで、金属樹脂積層体を得て、同様に評価を行った。結果を表1に示す。
温度190℃としたホットプレートを用いた、空気中での加熱時間を5分に変更した以外は、比較例3と同様にして、銅酸化物層を有する銅板(酸化物層形成金属材料)を得て、アセトン脱脂及びアルカリ洗浄を行った後、硫酸洗浄を行わずに、銅酸化物層が形成された状態のままの銅板を用い、ノルボルネン系樹脂と積層させることで、金属樹脂積層体を得て、同様に評価を行った。結果を表1に示す。
温度190℃としたホットプレートを用いた、空気中での加熱時間を60分に変更した以外は、比較例3と同様にして、銅酸化物層を有する銅板(酸化物層形成金属材料)を得て、アセトン脱脂及びアルカリ洗浄を行った後、硫酸洗浄を行わずに、銅酸化物層が形成された状態のままの銅板を用い、ノルボルネン系樹脂と積層させることで、金属樹脂積層体を得て、同様に評価を行った。結果を表1に示す。
熱硬化樹脂材料として、エポキシ樹脂を使用した以外は、比較例5と同様にして、銅酸化物層を有する銅板(酸化物層形成金属材料)を得て、アセトン脱脂及びアルカリ洗浄を行った後、硫酸洗浄を行わずに、銅酸化物層が形成された状態のまま用い、実施例4と同様にして、エポキシ樹脂と積層させることで、金属樹脂積層体を得て、同様に評価を行った。結果を表1に示す。
特に、実施例3及び比較例5と、実施例4及び比較例6の結果を比較することにより、熱硬化性樹脂として、ノルボルネン系樹脂を使用した場合には、エポキシ樹脂を使用した場合と比較して、せん断接着力の向上幅が大きいものであるといえる。
Claims (11)
- 金属材料と熱硬化性樹脂とを積層してなる金属樹脂積層体であって、前記金属材料と前記熱硬化性樹脂との間のせん断接着力が10MPa以上である金属樹脂積層体。
- 金属材料と熱硬化性樹脂とは、直接接合により、又は、酸化物層を介して積層されたものである請求項1に記載の金属樹脂積層体。
- 前記金属材料が、銅、ニッケル、アルミニウム、クロム及び鉄からなる群から選択される少なくとも1種の金属を含む請求項1又は2に記載の金属樹脂積層体。
- 前記金属材料が、銅または銅合金である請求項3に記載の金属樹脂積層体。
- 前記熱硬化性樹脂が、ノルボルネン系モノマーを含む重合性組成物を塊状重合してなる重合体である請求項1~4のいずれかに記載の金属樹脂積層体。
- 前記金属材料および前記熱硬化性樹脂からなる層とは別の層をさらに有する請求項1~5のいずれかに記載の金属樹脂積層体。
- 金属材料と熱硬化性樹脂とを積層してなる金属樹脂積層体を製造する方法であって、
表面に厚さ2nm以上の酸化物層を有し、かつ中心線平均表面粗さRaが1.5nm以上である金属材料を準備する第1工程と、
前記第1工程で準備した前記金属材料に酸を接触させる第2工程と、
前記第2工程において、酸に接触させた前記金属材料の表面に、熱硬化性樹脂材料を接触させ、硬化させる第3工程と、を備える金属樹脂積層体の製造方法。 - 前記第1工程が、金属材料を気中酸化又は液中酸化させることで、表面に厚さ2nm以上の酸化物層を有し、かつ中心線平均表面粗さRaが1.5nm以上である金属材料を得る工程を含む請求項7に記載の金属樹脂積層体の製造方法。
- 前記金属材料が、銅、ニッケル、アルミニウム、クロム及び鉄からなる群から選択される少なくとも1種の金属を含む請求項7又は8に記載の金属樹脂積層体の製造方法。
- 前記金属材料が、銅または銅合金である請求項9に記載の金属樹脂積層体の製造方法。
- 前記熱硬化性樹脂材料が、ノルボルネン系モノマーを含む重合性組成物である請求項7~10のいずれかに記載の金属樹脂積層体の製造方法。
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JP2019181711A (ja) * | 2018-04-03 | 2019-10-24 | 株式会社豊田中央研究所 | 金属樹脂接合体 |
JP2019181710A (ja) * | 2018-04-03 | 2019-10-24 | 株式会社豊田中央研究所 | 金属樹脂接合体 |
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2022
- 2022-04-25 WO PCT/JP2022/018712 patent/WO2022230803A1/ja active Application Filing
- 2022-04-25 EP EP22795716.4A patent/EP4331836A1/en active Pending
- 2022-04-25 JP JP2023517505A patent/JPWO2022230803A1/ja active Pending
- 2022-04-27 TW TW111116041A patent/TW202311031A/zh unknown
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JP2018196974A (ja) * | 2017-05-25 | 2018-12-13 | 株式会社豊田中央研究所 | 気密シール構造体 |
JP2019091742A (ja) * | 2017-11-10 | 2019-06-13 | ナミックス株式会社 | 粗面化処理された銅表面を有する物体 |
JP2019181711A (ja) * | 2018-04-03 | 2019-10-24 | 株式会社豊田中央研究所 | 金属樹脂接合体 |
JP2019181710A (ja) * | 2018-04-03 | 2019-10-24 | 株式会社豊田中央研究所 | 金属樹脂接合体 |
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EP4331836A1 (en) | 2024-03-06 |
JPWO2022230803A1 (ja) | 2022-11-03 |
TW202311031A (zh) | 2023-03-16 |
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