WO2015087722A1 - 金属樹脂複合体 - Google Patents
金属樹脂複合体 Download PDFInfo
- Publication number
- WO2015087722A1 WO2015087722A1 PCT/JP2014/081608 JP2014081608W WO2015087722A1 WO 2015087722 A1 WO2015087722 A1 WO 2015087722A1 JP 2014081608 W JP2014081608 W JP 2014081608W WO 2015087722 A1 WO2015087722 A1 WO 2015087722A1
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- Prior art keywords
- metal
- resin composite
- resin
- metal resin
- mass
- Prior art date
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- 239000000805 composite resin Substances 0.000 title claims abstract description 106
- 229910052751 metal Inorganic materials 0.000 claims abstract description 215
- 239000002184 metal Substances 0.000 claims abstract description 215
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- 239000011347 resin Substances 0.000 claims abstract description 141
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 82
- 239000011342 resin composition Substances 0.000 claims abstract description 67
- 229920001971 elastomer Polymers 0.000 claims abstract description 38
- 239000000806 elastomer Substances 0.000 claims abstract description 33
- 229910000838 Al alloy Inorganic materials 0.000 claims description 37
- 238000000034 method Methods 0.000 claims description 24
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
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- 239000011118 polyvinyl acetate Substances 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 238000000748 compression moulding Methods 0.000 claims description 6
- 238000000635 electron micrograph Methods 0.000 claims description 6
- 238000001746 injection moulding Methods 0.000 claims description 6
- 239000005062 Polybutadiene Substances 0.000 claims description 5
- 229920002857 polybutadiene Polymers 0.000 claims description 5
- 239000005060 rubber Substances 0.000 claims description 5
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 4
- 229920003049 isoprene rubber Polymers 0.000 claims description 4
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 claims description 4
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 3
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- 229920000800 acrylic rubber Polymers 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims description 3
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- 229910052749 magnesium Inorganic materials 0.000 claims description 3
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 19
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- SJECZPVISLOESU-UHFFFAOYSA-N 3-trimethoxysilylpropan-1-amine Chemical compound CO[Si](OC)(OC)CCCN SJECZPVISLOESU-UHFFFAOYSA-N 0.000 description 8
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- 230000000052 comparative effect Effects 0.000 description 6
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- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 6
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- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 description 5
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- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 4
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- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 3
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- 239000004317 sodium nitrate Substances 0.000 description 3
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 3
- 235000019345 sodium thiosulphate Nutrition 0.000 description 3
- 238000002336 sorption--desorption measurement Methods 0.000 description 3
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- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 2
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- OJMOMXZKOWKUTA-UHFFFAOYSA-N aluminum;borate Chemical compound [Al+3].[O-]B([O-])[O-] OJMOMXZKOWKUTA-UHFFFAOYSA-N 0.000 description 2
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- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
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- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- JYEUMXHLPRZUAT-UHFFFAOYSA-N 1,2,3-triazine Chemical class C1=CN=NN=C1 JYEUMXHLPRZUAT-UHFFFAOYSA-N 0.000 description 1
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- 229910052625 palygorskite Inorganic materials 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920001515 polyalkylene glycol Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 150000003222 pyridines Chemical class 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 229910052624 sepiolite Inorganic materials 0.000 description 1
- 235000019355 sepiolite Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 150000005846 sugar alcohols Chemical class 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 150000003536 tetrazoles Chemical class 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 125000003396 thiol group Chemical group [H]S* 0.000 description 1
- 150000003918 triazines Chemical class 0.000 description 1
- VLCLHFYFMCKBRP-UHFFFAOYSA-N tricalcium;diborate Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]B([O-])[O-].[O-]B([O-])[O-] VLCLHFYFMCKBRP-UHFFFAOYSA-N 0.000 description 1
- DDBUVUBWJVIGFH-UHFFFAOYSA-N trichloro(3-isocyanatopropyl)silane Chemical compound Cl[Si](Cl)(Cl)CCCN=C=O DDBUVUBWJVIGFH-UHFFFAOYSA-N 0.000 description 1
- FRGPKMWIYVTFIQ-UHFFFAOYSA-N triethoxy(3-isocyanatopropyl)silane Chemical compound CCO[Si](OCC)(OCC)CCCN=C=O FRGPKMWIYVTFIQ-UHFFFAOYSA-N 0.000 description 1
- NBXZNTLFQLUFES-UHFFFAOYSA-N triethoxy(propyl)silane Chemical compound CCC[Si](OCC)(OCC)OCC NBXZNTLFQLUFES-UHFFFAOYSA-N 0.000 description 1
- JXUKBNICSRJFAP-UHFFFAOYSA-N triethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical group CCO[Si](OCC)(OCC)CCCOCC1CO1 JXUKBNICSRJFAP-UHFFFAOYSA-N 0.000 description 1
- DQZNLOXENNXVAD-UHFFFAOYSA-N trimethoxy-[2-(7-oxabicyclo[4.1.0]heptan-4-yl)ethyl]silane Chemical group C1C(CC[Si](OC)(OC)OC)CCC2OC21 DQZNLOXENNXVAD-UHFFFAOYSA-N 0.000 description 1
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical group CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 description 1
- BSVBQGMMJUBVOD-UHFFFAOYSA-N trisodium borate Chemical compound [Na+].[Na+].[Na+].[O-]B([O-])[O-] BSVBQGMMJUBVOD-UHFFFAOYSA-N 0.000 description 1
- BIKXLKXABVUSMH-UHFFFAOYSA-N trizinc;diborate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]B([O-])[O-].[O-]B([O-])[O-] BIKXLKXABVUSMH-UHFFFAOYSA-N 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
- 239000010456 wollastonite Substances 0.000 description 1
- 229910052882 wollastonite Inorganic materials 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Images
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
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/30—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14311—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles using means for bonding the coating to the articles
-
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/16—Layered products comprising a layer of synthetic resin specially treated, e.g. irradiated
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
- C08L61/04—Condensation polymers of aldehydes or ketones with phenols only
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J5/00—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
- C09J5/02—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers involving pretreatment of the surfaces to be joined
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J5/00—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
- C09J5/06—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers involving heating of the applied adhesive
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2400/00—Presence of inorganic and organic materials
- C09J2400/10—Presence of inorganic materials
- C09J2400/16—Metal
- C09J2400/163—Metal in the substrate
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2400/00—Presence of inorganic and organic materials
- C09J2400/10—Presence of inorganic materials
- C09J2400/16—Metal
- C09J2400/166—Metal in the pretreated surface to be joined
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2421/00—Presence of unspecified rubber
- C09J2421/006—Presence of unspecified rubber in the substrate
Definitions
- the present invention relates to a metal resin composite.
- thermosetting resin composition As a method for joining a resin member and a metal member, fine irregularities are formed on the surface of the metal member, and after the thermosetting resin composition has entered the fine irregularities, the thermosetting resin composition is cured.
- a method of joining a resin member made of a thermosetting resin composition and a metal member has been proposed (for example, Patent Documents 1 and 2).
- the present invention has been made in view of the above circumstances, and provides a metal-resin composite excellent in bonding strength between a resin member and a metal member.
- the present inventors examined adjusting the surface roughness Ra and Rz of the metal member in order to improve the bonding strength between the resin member and the metal member. However, it has been clarified that the bonding strength between the resin member and the metal member cannot be sufficiently improved by simply adjusting the surface roughness Ra or Rz of the metal member. Accordingly, the present inventors have further studied diligently to improve the bonding strength between the resin member and the metal member.
- a metal resin composite in which a resin member and a metal member are joined The resin member is formed by curing a thermosetting resin composition containing a thermosetting resin and an elastomer,
- the metal member has a roughened layer composed of fine irregularities on at least a joint surface to be joined with the resin member,
- FIG. 1 It is a perspective view which shows an example of the structure of the metal resin composite of embodiment which concerns on this invention. It is a schematic diagram for demonstrating the example of the cross-sectional shape of the recessed part which comprises the roughening layer of the metal member surface of embodiment which concerns on this invention. It is sectional drawing which showed typically an example of the manufacturing apparatus of the metal resin composite of embodiment which concerns on this invention. It is a figure which shows the electron micrograph showing the enlarged view of the roughening layer which exists in the surface of the aluminum alloy sheet obtained in Example 1.
- FIG. 1 is a perspective view showing an example of the structure of a metal resin composite 100 according to an embodiment of the present invention.
- FIG. 2 is a schematic diagram for explaining an example of a cross-sectional shape of the recess 201 constituting the roughened layer 104 on the surface of the metal member 102 according to the embodiment of the present invention.
- the metal resin composite 100 is formed by bonding a resin member 101 and a metal member 102.
- the resin member 101 is formed by curing a thermosetting resin composition (P) containing a thermosetting resin (A) and an elastomer (D).
- the metal member 102 has a roughened layer 104 made of fine irregularities on at least a bonding surface 103 bonded to the resin member 101.
- a part of the elastomer (D) is present inside the concave portion 201 constituting the irregularities of the roughened layer 104.
- the elastomer (D) present inside the recess 201 usually forms an island phase, and its presence can be confirmed by an electron micrograph.
- the metal member 102 has a roughened layer 104 made of fine irregularities on the bonding surface 103 of the metal member 102 with the resin member 101.
- the roughened layer 104 refers to a region having a plurality of recesses 201 provided on the surface of the metal member 102.
- the thickness of the roughened layer 104 is preferably 3 ⁇ m or more and 40 ⁇ m or less, more preferably 4 ⁇ m or more and 32 ⁇ m or less, and particularly preferably 4 ⁇ m or more and 30 ⁇ m or less.
- the thickness of the roughening layer 104 represents the depth D3 of the largest depth among the plurality of recesses 201, and can be calculated from an electron microscope (SEM) photograph.
- the cross section of the recess 201 has a shape having a cross section width D2 larger than the cross section width D1 of the opening 203 in at least a part between the opening 203 and the bottom 205 of the recess 201.
- the cross-sectional shape of the recess 201 is not particularly limited as long as D2 is larger than D1, and can take various shapes.
- the cross-sectional shape of the recess 201 can be observed with, for example, an electron microscope (SEM).
- the cross-sectional shape of the concave portion 201 is the above shape, the resin member 101 is caught between the opening 203 and the bottom portion 205 of the concave portion 201, so that the anchor effect works effectively. Therefore, it is considered that the bonding strength between the resin member 101 and the metal member 102 is improved.
- the average depth of the recess 201 is preferably 0.5 ⁇ m or more and 40 ⁇ m or less, and more preferably 1 ⁇ m or more and 30 ⁇ m or less.
- the thermosetting resin composition (P) can sufficiently enter the depth of the recess 201, so that the resin member 101 and the metal member 102 enter each other. The mechanical strength of the region thus obtained can be further improved.
- the ratio of the elastomer (D) existing in the recesses 201 can be increased. Toughness can be improved.
- the average depth of the recess 201 can be measured from a scanning electron microscope (SEM) photograph as follows, for example. First, a cross section of the roughened layer 104 is photographed with a scanning electron microscope. From the observation image, 50 concave portions 201 are arbitrarily selected and their depths are measured. The average depth is obtained by integrating all the depths of the recesses 201 and dividing the sum by the number.
- SEM scanning electron microscope
- the average cross-sectional width of the opening 203 of the recess 201 is preferably 2 ⁇ m or more and 60 ⁇ m or less, more preferably 3 ⁇ m or more and 50 ⁇ m or less, and further preferably 3 ⁇ m or more and 30 ⁇ m or less.
- the average cross-sectional width of the opening 203 is not more than the above upper limit value, the anchor effect between the resin member 101 and the metal member 102 can be expressed more strongly.
- the average cross-sectional width of the opening 203 is equal to or larger than the lower limit value, the ratio of the elastomer (D) present in the recess 201 can be increased, so that the resin member 101 and the metal member 102 are intruded into each other. Toughness can be improved.
- the average cross-sectional width of the opening 203 can be measured from an SEM photograph as follows, for example. First, a cross section of the roughened layer 104 is photographed with a scanning electron microscope. From the observation image, 50 concave portions 201 are arbitrarily selected, and their cross-sectional widths D1 are measured. The average cross-sectional width is obtained by integrating all the cross-sectional widths D1 of the openings 203 and dividing the sum by the number.
- the surface roughness Ra of the bonding surface 103 of the metal member 102 is preferably 0.5 ⁇ m or more and 40.0 ⁇ m or less, more preferably 1.0 ⁇ m or more and 20.0 ⁇ m or less, and particularly preferably 1.0 ⁇ m or more and 10. 0 ⁇ m or less.
- the bonding strength between the resin member 101 and the metal member 102 can be further improved.
- the maximum height Rz of the joint surface 103 of the metal member 102 is preferably 1.0 ⁇ m or more and 40.0 ⁇ m or less, and more preferably 3.0 ⁇ m or more and 30.0 ⁇ m or less. When the maximum height Rz is within the above range, the bonding strength between the resin member 101 and the metal member 102 can be further improved.
- Ra and Rz can be measured according to JIS-B0601.
- the ratio of the actual surface area by the nitrogen adsorption BET method to the apparent surface area of the bonding surface 103 bonded to at least the resin member 101 is preferably 100 or more, more preferably. 150 or more.
- specific surface area is preferably 400 or less, more preferably 380 or less, and particularly preferably 300 or less.
- the specific surface area is not more than the upper limit, the bonding strength between the resin member 101 and the metal member 102 can be further improved.
- the apparent surface area in the present embodiment means a surface area when it is assumed that the surface of the metal member 102 is smooth without unevenness.
- the surface shape is a rectangle, it is represented by vertical length ⁇ horizontal length.
- the actual surface area by the nitrogen adsorption BET method in the present embodiment means the BET surface area obtained from the adsorption amount of nitrogen gas.
- BELSORPmini II a specific surface area / pore distribution measurement device for a vacuum dried sample to be measured
- the nitrogen adsorption / desorption amount at liquid nitrogen temperature is measured, and based on the nitrogen adsorption / desorption amount Can be calculated.
- the reason why the metal-resin composite 100 having further excellent bonding strength can be obtained is not clear, but the surface of the bonding surface 103 with the resin member 101 is the same as that of the resin member 101. This is considered to be because the anchor effect with the metal member 102 can be expressed more strongly.
- the specific surface area is equal to or greater than the lower limit, the contact area between the resin member 101 and the metal member 102 is increased, and the region where the resin member 101 and the metal member 102 enter each other increases. As a result, it is considered that the area where the anchor effect works increases and the bonding strength between the resin member 101 and the metal member 102 is further improved.
- the specific surface area is too large, the proportion of the metal member 102 in the region where the resin member 101 and the metal member 102 have entered each other decreases, and the mechanical strength of this region is reduced. Therefore, when the specific surface area is less than or equal to the upper limit value, the mechanical strength of the region where the resin member 101 and the metal member 102 have entered each other is further improved. As a result, the resin member 101 and the metal member 102 It is considered that the bonding strength can be further improved. From the above, when the specific surface area is within the above range, the surface of the joint surface 103 with the resin member 101 can exhibit the anchor effect between the resin member 101 and the metal member 102 even more strongly. It is inferred that
- the glossiness of at least the joint surface 103 joined to the resin member 101 is preferably 0.1 or more, more preferably 0.5 or more, and further preferably 1 or more. is there.
- the glossiness is preferably 30 or less, more preferably 20 or less.
- the glossiness in the present embodiment indicates a value at a measurement angle of 60 ° measured in accordance with ASTM-D523.
- the glossiness can be measured using, for example, a digital glossiness meter (20 °, 60 °) (GM-26 type, manufactured by Murakami Color Research Laboratory).
- a digital glossiness meter (20 °, 60 °) (GM-26 type, manufactured by Murakami Color Research Laboratory).
- the metal material constituting the metal member 102 is not particularly limited, and examples thereof include iron, stainless steel, aluminum, aluminum alloy, magnesium, magnesium alloy, copper, and copper alloy from the viewpoint of availability and price. These may be used alone or in combination of two or more. Among these, aluminum and aluminum alloys are preferable from the viewpoint of light weight and high strength.
- the shape of the metal member 102 is not particularly limited as long as it has a joint surface 103 that joins the resin member 101.
- the metal member 102 may have a sheet shape, a flat plate shape, a curved plate shape, a rod shape, a cylindrical shape, a lump shape, or the like. it can. Moreover, the structure which consists of these combination may be sufficient.
- the metal member 102 having such a shape can be obtained by processing the above-described metal material by a known processing method.
- the shape of the joint surface 103 joined to the resin member 101 is not particularly limited, and examples thereof include a flat surface and a curved surface.
- the thickness of the metal member 102 is not particularly limited because it is appropriately set depending on the use of the metal resin composite 100, but is usually 0.01 mm or more, preferably 0.1 mm or more.
- the upper limit value of the thickness of the metal member 102 is not particularly limited, but is, for example, 50 mm or less.
- the roughened layer 104 can be formed, for example, by chemically treating the surface of the metal member 102 using a surface treatment agent.
- the chemical treatment of the surface of the metal member 102 using the surface treatment agent itself has been performed in the prior art.
- the present inventors consider factors such as (1) the combination of the metal member and the surface treatment agent, (2) the temperature and time of the chemical treatment, and (3) the post-treatment of the surface of the metal member after the chemical treatment. It has been found that the roughened layer 104 capable of allowing the elastomer (D) to exist inside the recess 201 can be obtained by highly controlling.
- the roughened layer 104 that can further improve the bonding strength between the resin member 101 and the metal member 102, it is particularly important to highly control these factors.
- an example of a method for forming the roughened layer 104 on the surface of the metal member 102 will be described.
- the method for forming the roughened layer 104 according to the present embodiment is not limited to the following example.
- a combination of a metal member and a surface treatment agent is selected.
- a metal member composed of iron or stainless steel it is preferable to select an aqueous solution in which an inorganic acid, a chlorine ion source, a cupric ion source, and a thiol compound are combined as necessary as a surface treatment agent.
- a metal member composed of aluminum or an aluminum alloy it is preferable to select an aqueous solution in which an alkali source, an amphoteric metal ion source, a nitrate ion source, and a thio compound are combined as necessary as a surface treatment agent.
- an alkali source is used as the surface treatment agent, and it is particularly preferable to select an aqueous solution of sodium hydroxide.
- an inorganic acid such as nitric acid or sulfuric acid, an organic acid such as an unsaturated carboxylic acid, a persulfate, hydrogen peroxide, an imidazole, or a derivative thereof, Tetrazole and its derivatives, aminotetrazole and its derivatives, azoles such as aminotriazole and its derivatives, pyridine derivatives, triazine, triazine derivatives, alkanolamines, alkylamine derivatives, polyalkylene glycol, sugar alcohol, cupric ion source, chlorine It is preferable to select an aqueous solution using at least one selected from an ion source, a phosphonic acid chelating agent, an oxidizing agent, and N,
- the metal member is immersed in a surface treatment agent, and the surface of the metal member is chemically treated.
- the processing temperature is, for example, 30 ° C.
- the treatment time is appropriately determined depending on the material and surface state of the metal member to be selected, the type and concentration of the surface treatment agent, the treatment temperature, etc., and is, for example, 30 to 300 seconds.
- the etching amount of the metal member in the depth direction is preferably 3 ⁇ m or more, more preferably 5 ⁇ m or more.
- the etching amount in the depth direction of the metal member can be evaluated by calculating from the weight, specific gravity and surface area of the dissolved metal member.
- the etching amount in the depth direction can be adjusted by the type and concentration of the surface treatment agent, the treatment temperature, the treatment time, and the like.
- the thickness of the roughened layer 104, the average depth of the concave portion 201, the specific surface area, the glossiness, Ra, Rz, and the like can be adjusted by adjusting the etching amount in the depth direction.
- the resin member 101 is formed by curing a thermosetting resin composition (P) containing a thermosetting resin (A) and an elastomer (D).
- thermosetting resin (A) examples include phenol resin, epoxy resin, unsaturated polyester resin, diallyl phthalate resin, melamine resin, oxetane resin, maleimide resin, urea (urea) resin, polyurethane resin, silicone resin, and benzoxazine.
- a resin having a ring, a cyanate ester resin, or the like is used. These may be used alone or in combination of two or more.
- phenol resins that are excellent in heat resistance, workability, mechanical properties, electrical properties, adhesion, and wear resistance are preferably used.
- the content of the thermosetting resin (A) is preferably 15% by mass or more and 60% by mass or less, more preferably 25% by mass or more and 50% by mass or less, when the entire resin member 101 is 100% by mass. is there.
- phenol resin examples include novolak phenol resins such as phenol novolak resin, cresol novolak resin, and bisphenol A type novolak resin; Examples thereof include resol type phenol resins such as oil-melted resol phenol resin; aryl alkylene type phenol resins and the like. These may be used alone or in combination of two or more. Among these, a novolak type phenol resin is preferable because it is easily available, inexpensive, and has good workability by roll kneading.
- hexamethylenetetramine is usually used as a curing agent.
- hexamethylenetetramine is not particularly limited, it is preferably used in an amount of 10 to 25 parts by weight, more preferably 13 to 20 parts by weight, based on 100 parts by weight of the novolac type phenol resin.
- the amount of hexamethylenetetramine used is not less than the above lower limit, the curing time during molding can be shortened.
- the external appearance of a molded article can be improved as the usage-amount of hexamethylenetetramine is below the said upper limit.
- the thermosetting resin composition (P) contains an elastomer (D) from the viewpoint of improving the toughness of the resin member 101.
- the filler (B) described later is excluded from the elastomer (D).
- the content of the elastomer (D) is preferably 1% by mass or more and 10% by mass or less, more preferably 1.5% by mass or more and 7% by mass or less, when the entire resin member 101 is 100% by mass. .
- Examples of the elastomer (D) include unmodified polyvinyl acetate, carboxylic acid-modified polyvinyl acetate, polyvinyl butyral, natural rubber, isoprene rubber, styrene / butadiene rubber, butadiene rubber, chloroprene rubber, butyl rubber, and ethylene / propylene rubber.
- unmodified polyvinyl acetate, carboxylic acid-modified polyvinyl acetate, acrylic rubber, acrylonitrile / budadiene rubber, and polyvinyl butyral are preferable.
- the toughness of the resin member 101 can be particularly improved.
- the thermosetting resin composition (P) may further include a filler (B).
- the elastomer (D) described above is excluded from the filler (B).
- the content of the filler (B) is preferably 30% by mass or more and 80% by mass or less, and more preferably 40% by mass or more and 70% by mass or less, when the entire resin member 101 is 100% by mass.
- Examples of the filler (B) include a fibrous filler, a granular filler, and a plate-like filler.
- the fibrous filler is a filler whose shape is fibrous.
- the plate-like filler is a filler whose shape is plate-like.
- the granular filler is a filler having a shape other than a fiber or plate including an indefinite shape.
- fibrous filler examples include glass fiber, carbon fiber, asbestos fiber, metal fiber, wollastonite, attapulgite, sepiolite, rock wool, aluminum borate whisker, potassium titanate fiber, calcium carbonate whisker, and titanium oxide whisker.
- fibrous inorganic fillers such as ceramic fibers; and fibrous organic fillers such as aramid fibers, polyimide fibers, and polyparaphenylene benzobisoxazole fibers. These may be used alone or in combination of two or more.
- Examples of the plate-like filler and granular filler include talc, kaolin clay, calcium carbonate, zinc oxide, calcium silicate hydrate, mica, glass flakes, glass powder, magnesium carbonate, silica, titanium oxide, Alumina, aluminum hydroxide, magnesium hydroxide, barium sulfate, calcium sulfate, calcium sulfite, zinc borate, barium metaborate, aluminum borate, calcium borate, sodium borate, aluminum nitride, boron nitride, silicon nitride, the above fibers
- a pulverized product of a filler may be used alone or in combination of two or more.
- the filler (B) preferably has an average particle size of 0.1 ⁇ m or more, more preferably 2 ⁇ m or more, in a weight-based particle size distribution measured by a laser diffraction / scattering particle size distribution measurement method. Thereby, the mechanical strength of the resin member 101 obtained can be further improved while improving the workability of the thermosetting resin composition (P).
- the upper limit of the average particle diameter of a filler (B) is not specifically limited, For example, it is 100 micrometers or less.
- the filler (B) more preferably includes a fibrous filler or a plate-like filler having an average major axis of 5 ⁇ m to 50 mm and an average aspect ratio of 1 to 1000.
- the average major axis and average aspect ratio of the filler (B) can be measured from the SEM photograph as follows, for example. First, a plurality of fibrous fillers or plate-like fillers are photographed with a scanning electron microscope. From the observation image, 50 fibrous fillers or plate-like fillers are arbitrarily selected, and their major diameters (fiber length in the case of fibrous fillers, planar major dimension in the case of plate-like fillers) and The short diameter (in the case of a fibrous filler, the fiber diameter, in the case of a plate-like filler, the dimension in the thickness direction) is measured. The average major axis is obtained by integrating all major axes and dividing by the number. Similarly, the average minor axis is obtained by integrating all minor axes and dividing by the number. The average major axis with respect to the average minor axis is defined as the average aspect ratio.
- the filler (B) is preferably one or more selected from glass fibers, carbon fibers, glass beads, calcium carbonate and the like. When such a filler (B) is used, the mechanical strength of the resin member 101 can be particularly improved.
- the filler (B) may be subjected to a surface treatment with a coupling agent such as a silane coupling agent (C) described later.
- a coupling agent such as a silane coupling agent (C) described later.
- the thermosetting resin composition (P) may further contain a silane coupling agent (C).
- a silane coupling agent (C) By including the silane coupling agent (C), the adhesion between the resin member 101 and the metal member 102 can be improved. Further, by including the silane coupling agent (C), the affinity between the thermosetting resin (A) and the filler (B) is improved, and as a result, the mechanical strength of the resin member 101 is further improved. be able to.
- the content of the silane coupling agent (C) is not particularly limited because it depends on the specific surface area of the filler (B), but is preferably 0.01 parts by mass or more and 4 parts by mass with respect to 100 parts by mass of the filler (B). 0.0 part by mass or less, and more preferably 0.1 part by mass or more and 1.0 part by mass or less. When the content of the silane coupling agent (C) is within the above range, the mechanical strength of the resin member 101 can be further improved while sufficiently covering the filler (B).
- silane coupling agent (C) examples include epoxy groups such as ⁇ -glycidoxypropyltrimethoxysilane, ⁇ -glycidoxypropyltriethoxysilane, and ⁇ - (3,4-epoxycyclohexyl) ethyltrimethoxysilane.
- alkoxysilane compounds mercapto group-containing alkoxysilane compounds such as ⁇ -mercaptopropyltrimethoxysilane and ⁇ -mercaptopropyltriethoxysilane; ⁇ -ureidopropyltriethoxysilane, ⁇ -ureidopropyltrimethoxysilane, ⁇ - (2- Ureido group-containing alkoxysilane compounds such as ureidoethyl) aminopropyltrimethoxysilane; ⁇ -isocyanatopropyltriethoxysilane, ⁇ -isocyanatopropyltrimethoxysilane, ⁇ -isocyanatopropylmethyldimethoxy Isocyanato group-containing alkoxysilane compounds such as silane, ⁇ -isocyanatopropylmethyldiethoxysilane, ⁇ -isocyanatopropylethyldime
- thermosetting resin composition P
- thermosetting resin (A) filler (B), if necessary, silane coupling agent (C), elastomer (D), curing agent, curing aid, release agent, pigment, flame retardant, weather resistance
- An agent, an antioxidant, a plasticizer, a lubricant, a sliding agent, a foaming agent and the like are blended and mixed uniformly.
- thermosetting resin composition (P) is obtained by granulating or pulverizing the obtained mixture.
- the linear expansion coefficient ⁇ R in the range from 25 ° C. to the glass transition temperature of the resin member 101 is preferably 10 ppm / ° C. or more and 50 ppm / ° C. or less, more preferably 15 ppm / ° C. or more and 45 ppm / ° C. or less.
- the reliability of the temperature cycle of the metal resin composite 100 can be further improved.
- the thickness of the resin member 101 is not particularly limited because it is appropriately set depending on the use of the metal resin composite 100, but is usually 0.05 mm or more, preferably 0.1 mm or more.
- the upper limit value of the thickness of the resin member 101 is not particularly limited, but is, for example, 50 mm or less.
- the metal resin composite 100 is formed by bonding a resin member 101 and a metal member 102.
- the resin member 101 is formed by curing a thermosetting resin composition (P) containing a thermosetting resin (A) and an elastomer (D).
- the metal member 102 has a roughened layer 104 made of fine irregularities on at least a bonding surface 103 bonded to the resin member 101.
- a part of the elastomer (D) is present inside the concave portion 201 constituting the irregularities of the roughened layer 104.
- the metal resin composite 100 has a linear expansion coefficient ⁇ R in the range from 25 ° C. to the glass transition temperature of the resin member 101 and a linear expansion coefficient in the range from 25 ° C. of the metal member 102 to the glass transition temperature of the resin member 101.
- the absolute value of the difference from ⁇ M ( ⁇ R ⁇ M ) is preferably 25 ppm / ° C. or less, more preferably 10 ppm / ° C. or less. If the difference in the linear expansion coefficient is less than or equal to the upper limit, thermal stress due to the difference in linear expansion that occurs when the metal resin composite 100 is exposed to a high temperature can be suppressed.
- the bonding strength between the resin member 101 and the metal member 102 can be maintained even at a high temperature. That is, if the difference in the linear expansion coefficient is not more than the above upper limit value, the dimensional stability of the metal resin composite 100 at a high temperature can be improved.
- the linear expansion coefficient has anisotropy, an average value thereof is represented. For example, when the resin member 101 is in the form of a sheet, when the linear expansion coefficient in the flow direction (MD) is different from the linear expansion coefficient in the vertical direction (TD), the average value thereof is the linear expansion coefficient ⁇ of the resin member 101. R.
- the metal resin composite 100 is not particularly limited, but it is preferable that the resin member 101 and the metal member 102 are joined without an adhesive interposed therebetween.
- the resin member 101 and the metal member 102 have excellent bonding strength even without an adhesive. Therefore, the manufacturing process of the metal resin composite 100 can be simplified.
- the adhesive refers to an adhesive known in the technical field of metal resin composites, and examples thereof include an epoxy adhesive.
- the resin member 101 preferably has a sea-island structure, and the elastomer (D) is preferably present in the island phase.
- the toughness of the resin member 101 can be improved and the impact resistance of the metal resin composite 100 can be improved. Therefore, even if an impact is applied to the metal resin composite 100 from the outside, the bonding strength between the resin member 101 and the metal member 102 can be maintained.
- the sea-island structure can be observed with an electron micrograph.
- the average diameter by image analysis of the electron micrograph of the island phase is preferably 0.1 ⁇ m or more and 100 ⁇ m or less, and more preferably 0.2 ⁇ m or more and 30 ⁇ m or less.
- the average diameter of the island phase can be measured from a scanning electron microscope (SEM) photograph as follows. First, a cross section of the resin member 101 is photographed with a scanning electron microscope. From the observation image, 50 island phases existing in the resin member 101 are arbitrarily selected and their diameters are measured. The average diameter is the sum of the island phase diameters divided by the number.
- the total thickness of the metal resin composite 100 is not particularly limited because it is appropriately set depending on the use of the metal resin composite 100, but is usually 0.06 mm or more, preferably 0.2 mm or more. Although the upper limit of the thickness of the metal resin composite 100 is not particularly limited, for example, it is 100 mm or less.
- a method for manufacturing the metal resin composite 100 will be described. Although it does not specifically limit as a manufacturing method of the metal resin composite 100, for example, the injection molding method, the transfer molding method, the compression molding method, the injection compression molding method etc. are mentioned. Of these, the injection molding method is particularly suitable.
- the manufacturing method of the metal resin composite 100 includes, for example, the following steps. (1) Step of installing the metal member 102 having the roughened layer 104 on the bonding surface 103 at least bonded to the resin member 101 in the mold 105 (2) Thermosetting resin composition (P) in the mold 105 And the thermosetting resin composition (P) is cured in a state where at least a part of the thermosetting resin composition (P) is in contact with the bonding surface 103, thereby forming the thermosetting resin composition (P). The process of joining the resin member 101 and the metal member 102 made of
- FIG. 3 is a cross-sectional view schematically showing an example of an apparatus for manufacturing the metal resin composite 100 according to the embodiment of the present invention.
- a mold 105 is prepared, and the metal member 102 is installed in the mold 105.
- the thermosetting resin composition (P) is placed in the mold 105 so that at least a part of the thermosetting resin composition (P) contacts the bonding surface 103 of the metal member 102. P) is injected.
- thermosetting resin composition (P) is cured in a state where at least a part of the thermosetting resin composition (P) is in contact with the bonding surface 103. Thereafter, the metal resin composite 100 is taken out from the mold 105, and the metal resin composite 100 is obtained.
- thermosetting resin composition (P) preferably has high fluidity in order to perform molding well. Therefore, the thermosetting resin composition (P) has a melt viscosity at 175 ° C. of preferably 10 Pa ⁇ s to 3000 Pa ⁇ s, and more preferably 30 Pa ⁇ s to 2000 Pa ⁇ s.
- the melt viscosity at 175 ° C. can be measured by, for example, a thermal fluidity evaluation apparatus (flow tester) manufactured by Shimadzu Corporation.
- the thermosetting resin composition (P) preferably has the following viscosity behavior.
- the thermosetting resin composition (P) is heated from 60 ° C. to a molten state at a rate of temperature increase of 3 ° C./min and a frequency of 1 Hz using a dynamic viscoelasticity measuring device, the thermosetting resin composition (P) has a characteristic that the melt viscosity decreases at the initial stage and further increases after reaching the minimum melt viscosity, and the minimum melt viscosity is in the range of 10 Pa ⁇ s to 2000 Pa ⁇ s. .
- thermosetting resin (A) and the filler (B) are separated, and only the thermosetting resin (A) can be prevented from flowing, and more homogeneous.
- Resin member 101 can be obtained.
- the penetration property to the recessed part 201 of a thermosetting resin composition (P) can be improved as minimum melt viscosity is below the said upper limit, supply an elastomer (D) fully inside the recessed part 201. Can do.
- the toughness of the region where the resin member 101 and the metal member 102 have entered each other can be further improved.
- the temperature at which the minimum melt viscosity is reached is preferably in the range of 100 ° C. or higher and 250 ° C. or lower.
- thermosetting resin composition (P) having such a viscosity behavior, for example, the type and amount of the thermosetting resin (A) described above, the type and amount of the filler (B), an elastomer, What is necessary is just to adjust the kind and quantity of (D) suitably.
- the molding conditions of the metal resin composite 100 are not particularly limited because they vary depending on the molding method employed, but generally known molding conditions in the employed molding method can be employed.
- molding conditions of a temperature of 160 to 180 ° C., a pressure of 10 to 30 MPa, and a curing time of 30 seconds to 5 minutes can be mentioned.
- the metal resin composite 100 according to the present embodiment Since the metal resin composite 100 according to the present embodiment has high productivity and high degree of freedom in shape control, it can be developed for various uses. For example, it can be used for aircraft parts, automobile parts, electronic equipment parts, household appliance parts, industrial equipment parts, and the like. It is preferable that the metal resin composite body 100 according to the present embodiment is particularly used for automotive parts.
- thermosetting resin composition (P1) The melt viscosity of the thermosetting resin composition (P1) at 175 ° C. was measured using a flow characteristic evaluation apparatus (Koka flow tester, CFT-500D). In addition, the thermosetting resin composition (P1) was heated from 60 ° C. to 200 ° C. at a temperature rising rate of 3 ° C./min and a frequency of 1 Hz, using a rheometer MCR301 manufactured by Anton Paar Japan. From the obtained viscosity profile, the minimum melt viscosity and the temperature at which the minimum melt viscosity was reached were determined.
- an A5052 aluminum alloy sheet A (80 mm ⁇ 10 mm, thickness 1.0 mm) whose surface was sufficiently polished with # 4000 polishing paper was prepared.
- the aluminum alloy sheet A was immersed and swung, and dissolved in the depth direction by 15 ⁇ m (calculated from the reduced weight of aluminum).
- the sample to be measured was vacuum-dried at 120 ° C. for 6 hours, and then the nitrogen adsorption / desorption amount at the liquid nitrogen temperature was measured using an automatic specific surface area / pore distribution measuring device (BELSORPmini II, manufactured by Nippon Bell Co., Ltd.).
- BELSORPmini II automatic specific surface area / pore distribution measuring device
- the actual surface area by the nitrogen adsorption BET method was calculated from the BET plot.
- the specific surface area was calculated by dividing the actual surface area measured by the nitrogen adsorption BET method by the apparent surface area.
- the specific surface area of the aluminum alloy sheet 1 was 270.
- the glossiness of the surface of the metal member is measured at 60 ° in accordance with ASTM-D523 using a digital gloss meter (20 °, 60 °) (GM-26, manufactured by Murakami Color Research Laboratory Co., Ltd.). It was measured. The glossiness of the aluminum alloy sheet 1 was 10.
- the surface of the metal member was photographed with an electron microscope (SEM), and the structure of the roughened layer existing on the surface of the metal member was observed.
- SEM electron microscope
- FIG. 4 the electron micrograph showing the enlarged view of the roughening layer which exists in the surface of the aluminum alloy sheet 1 obtained in Example 1 is shown.
- the thickness of the roughened layer of the aluminum alloy sheet 1 was 15 ⁇ m
- the average depth of the recesses was 13 ⁇ m
- the average cross-sectional width of the openings was 14 ⁇ m.
- the cross section of the concave portion has a shape having a cross sectional width larger than the cross sectional width of the opening portion in at least a part between the opening portion and the bottom portion of the concave portion.
- the metal resin composite 1 was produced using the obtained thermosetting resin composition (P1) and the aluminum alloy sheet 1. Specifically, it was produced by the following procedure. First, an aluminum alloy sheet 1 having a thickness of 1 mm is placed in a mold. Next, the thermosetting resin composition (P1) is heated so that the thickness after curing is 3 mm, and a predetermined amount is injected into the mold. Finally, the thermosetting resin composition (P1) was cured by compression molding to obtain a metal resin composite 1 that was a two-layer sheet of a resin member sheet having a thickness of 3 mm and an aluminum alloy sheet 1 having a thickness of 1 mm. This metal resin composite 1 was used as a test piece 1. The compression molding conditions were an effective pressure of 20 MPa, a mold temperature of 175 ° C., and a curing time of 3 minutes.
- the bending strength of the obtained test piece 1 was measured in an atmosphere at 25 ° C. according to JIS K 6911. At this time, the aluminum alloy sheet 1 was placed on the lower side and tested. Here, the unit of bending strength is “MPa”.
- the tensile shear strength test of the obtained test piece 1 was measured in an atmosphere of 25 ° C. according to JIS K 6850.
- the unit of tensile shear strength is “MPa”.
- the linear expansion coefficient ⁇ R in the range from 25 ° C. to the glass transition temperature of the resin member sheet was measured under a compression condition of 5 ° C./min using a thermomechanical analyzer TMA (manufactured by TA Instruments, EXSTAR6000).
- the linear expansion coefficient ⁇ R of the resin member sheet having a thickness of 3 mm made of the thermosetting resin composition (P1) is 16 ppm / ° C. in the flow direction and 45 ppm / ° C. in the direction perpendicular thereto, and the average value is 31 ppm / ° C. It was. Therefore, the difference in linear expansion coefficient ( ⁇ R ⁇ M ) was 8 ppm / ° C.
- Example 2 A metal resin composite 2 was produced in the same manner as in Example 1 except that the following thermosetting resin composition (P2) was used instead of the thermosetting resin composition (P1). This metal resin composite 2 was used as a test piece 2, and the same evaluation as in Example 1 was performed.
- the linear expansion coefficient ⁇ R of the resin member sheet having a thickness of 3 mm made of the thermosetting resin composition (P2) is 16 ppm / ° C. in the flow direction and 45 ppm / ° C. in the direction perpendicular thereto, and the average value is 31 ppm / ° C. It was. Therefore, the difference in linear expansion coefficient ( ⁇ R ⁇ M ) was 8 ppm / ° C.
- Example 3 A metal resin composite 3 was produced in the same manner as in Example 1 except that the following thermosetting resin composition (P3) was used instead of the thermosetting resin composition (P1). This metal resin composite 3 was used as a test piece 3 and evaluated in the same manner as in Example 1.
- 32.0% by mass of novolac type phenolic resin (PR-51305, manufactured by Sumitomo Bakelite Co., Ltd.), 6.0% by mass of hexamethylenetetramine, glass fiber (CS3E479, manufactured by Nittobo Co., Ltd., average particle size: 11 ⁇ m, average major axis: 3 mm, average aspect ratio: 270) is 58.0% by mass, carboxylic acid-modified polyvinyl acetate (manufactured by Denki Kagaku Kogyo Co., Ltd., product name: Denka ASR CH-09) is 2.0% by mass, ⁇ -aminopropyltriethoxy 0.2% by mass of silane (manufactured by Shin-E
- the linear expansion coefficient ⁇ R of the resin member sheet having a thickness of 3 mm made of the thermosetting resin composition (P3) is 16 ppm / ° C. in the flow direction, 46 ppm / ° C. in the direction perpendicular thereto, and the average value is 31 ppm / ° C. It was. Therefore, the difference in linear expansion coefficient ( ⁇ R ⁇ M ) was 8 ppm / ° C.
- Example 4 A metal resin composite 4 was produced in the same manner as in Example 1 except that the following thermosetting resin composition (P4) was used instead of the thermosetting resin composition (P1). This metal resin composite 4 was used as a test piece 4 and evaluated in the same manner as in Example 1.
- 27.0% by mass of a resol type phenolic resin manufactured by Sumitomo Bakelite, PR-513723
- glass fiber CS3E479, Nittobo
- Manufactured average particle size: 11 ⁇ m, average major axis: 3 mm, average aspect ratio: 270)
- 61.0% by mass acrylonitrile-butadiene rubber (manufactured by JSR, product name: PNC-38) 2.0% by mass, ⁇ -0.2% by mass of aminopropyltriethoxysilane (manufactured by Shin-Etsu Chemical Co., Ltd
- thermosetting resin composition (P4) 8% by mass, each dry-mixed, melt kneaded with a heating roll at 90 ° C., crushed and cooled, and pulverized to form a granular thermosetting resin composition (P4) was obtained.
- the linear expansion coefficient ⁇ R of the resin member sheet having a thickness of 3 mm made of the thermosetting resin composition (P4) is 16 ppm / ° C. in the flow direction and 45 ppm / ° C. in the direction perpendicular thereto, and the average value is 31 ppm / ° C. It was. Therefore, the difference in linear expansion coefficient ( ⁇ R ⁇ M ) was 8 ppm / ° C.
- Example 5 A metal resin composite 5 was produced in the same manner as in Example 1 except that the following thermosetting resin composition (P5) was used instead of the thermosetting resin composition (P1). The metal resin composite 5 was used as a test piece 5 and the same evaluation as in Example 1 was performed.
- Resol type phenolic resin (Sumitomo Bakelite, PR-513723) 28.0% by mass, novolac type phenolic resin (PR-51305, manufactured by Sumitomo Bakelite) 8.0% by mass, glass fiber (CS3E479, Nittobo) Manufactured, average particle diameter: 11 ⁇ m, average major axis: 3 mm, average aspect ratio: 270) 55.0% by mass, unfired clay (manufactured by ECC, product name: ECKALITE1, average particle diameter: 0.4 ⁇ m, average major axis: 8 mm, average aspect ratio: 20) 3.0 mass%, acrylonitrile butadiene rubber (manufactured by JSR, product name: PNC-38) 2.0 mass%, ⁇ -aminopropyltriethoxysilane (Shin-Etsu Chemical Co., Ltd.) Product, product name: KBE-903) 0.2% by mass, curing aid (slaked lime) 1.0% by mass
- the linear expansion coefficient ⁇ R of the 3 mm thick resin member sheet made of the thermosetting resin composition (P5) is 22 ppm / ° C. in the flow direction and 43 ppm / ° C. in the direction perpendicular thereto, and the average value is 32 ppm / ° C. It was. Therefore, the difference in coefficient of linear expansion ( ⁇ R ⁇ M ) was 9 ppm / ° C.
- Example 6 A metal resin composite 6 was produced in the same manner as in Example 1 except that the following aluminum alloy sheet 2 was used instead of the aluminum alloy sheet 1. This metal resin composite 6 was used as a test piece 6 and evaluated in the same manner as in Example 1. An aqueous solution of potassium hydroxide (16% by mass), zinc chloride (5% by mass), sodium nitrate (5% by mass), and sodium thiosulfate (13% by mass) was prepared. In the obtained aqueous solution (30 ° C.), the aluminum alloy sheet A was immersed and swung, and dissolved in the depth direction by 30 ⁇ m (calculated from the reduced weight of aluminum).
- the cross section of the concave portion has a shape having a cross-sectional width larger than the cross-sectional width of the opening portion in at least a part between the opening portion and the bottom portion of the concave portion.
- Example 7 instead of the aluminum alloy sheet 1, a metal resin composite 7 was produced by the same method as in Example 1 except that the following aluminum alloy sheet 3 was used. The metal resin composite 7 was used as a test piece 7, and the same evaluation as in Example 1 was performed. An aqueous solution of potassium hydroxide (16% by mass), zinc chloride (5% by mass), sodium nitrate (5% by mass), and sodium thiosulfate (13% by mass) was prepared. In the obtained aqueous solution (30 ° C.), the aluminum alloy sheet A was immersed and swung, and dissolved in the depth direction by 4 ⁇ m (calculated from the reduced weight of aluminum).
- the aluminum alloy sheet 3 was obtained.
- the characteristics of the aluminum alloy sheet 3 were as follows. Ra: 1.0 ⁇ m Rz: 4.0 ⁇ m Specific surface area: 160 Glossiness: 8 Roughening layer thickness: 4 ⁇ m Average depth of recess: 3.5 ⁇ m Average cross-sectional width of the opening: 3 ⁇ m Linear expansion coefficient ⁇ M : 23 ppm / ° C.
- the cross section of the concave portion has a shape having a cross-sectional width larger than the cross-sectional width of the opening portion in at least a part between the opening portion and the bottom portion of the concave portion.
- thermosetting resin composition P6
- thermosetting resin composition P1
- thermosetting resin composition (P6) The obtained product was pulverized to obtain a granular thermosetting resin composition (P6).
- the linear expansion coefficient ⁇ R of the resin member sheet having a thickness of 3 mm made of the thermosetting resin composition (P6) was 17 ppm / ° C. in the flow direction, 47 ppm / ° C. in the direction perpendicular thereto, and the average value was 32 ppm / ° C. It was. Therefore, the difference in coefficient of linear expansion ( ⁇ R ⁇ M ) was 9 ppm / ° C.
- a metal resin composite 9 was produced in the same manner as in Example 1 except that the aluminum alloy sheet A that was not subjected to the surface treatment used in Example 1 was used. This metal resin composite 9 was used as a test piece 9, and the same evaluation as in Example 1 was performed.
- the characteristics of the aluminum alloy sheet A were as follows. Ra: 0.5 ⁇ m Rz: 0.7 ⁇ m Specific surface area: 50 Glossiness: 260 Roughening layer thickness: 0 ⁇ m Average depth of recess: 0 ⁇ m Average cross-sectional width of the opening: 0 ⁇ m Linear expansion coefficient ⁇ M : 23 ppm / ° C. Further, the cross section of the concave portion was not in a shape having a cross sectional width larger than the cross sectional width of the opening portion in at least a part between the opening portion and the bottom portion of the concave portion.
- a metal resin composite 10 was produced in the same manner as in Example 1 except that the following aluminum alloy sheet 4 was used.
- This metal resin composite 10 was used as a test piece 10 and evaluated in the same manner as in Example 1.
- a # 80 water-resistant abrasive paper was wetted with water and then placed on a smooth surface.
- an aluminum alloy sheet 4 was obtained by reciprocating a distance of about 10 cm 10 times while lightly pressing the water-resistant polished paper used in Example 1 on the non-surface-treated aluminum alloy sheet A.
- the characteristics of the aluminum alloy sheet 4 were as follows.
- Ra 1.5 ⁇ m
- Rz 7.0 ⁇ m
- Specific surface area 80 Glossiness: 60
- Roughening layer thickness 7 ⁇ m
- Average depth of recess 5 ⁇ m
- Average cross-sectional width of the opening 70 ⁇ m
- Linear expansion coefficient ⁇ M 23 ppm / ° C.
- the cross section of the recess was not in a shape having a cross-sectional width larger than the cross-sectional width of the opening at least at a part between the opening and the bottom of the recess.
- Table 1 and Table 2 show the above evaluation results.
- the metal resin composites 1 to 7 obtained in Examples 1 to 7 elastomers were observed inside the concave portions constituting the concave and convex portions of the roughened layer. Therefore, the metal resin composites 1 to 7 are excellent in shear tensile strength and bending strength, and excellent in bonding strength between the resin member and the metal member. In contrast, in the metal resin composite 8 obtained in Comparative Example 1, no elastomer was observed inside the recess, and the metal resin composite 7 was inferior in shear tensile strength. In addition, the metal resin composites 9 to 10 obtained in Comparative Examples 2 to 3 were inferior in bending strength as well as shear tensile strength.
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WO2019159929A1 (ja) | 2018-02-14 | 2019-08-22 | 三菱ケミカル株式会社 | 難燃性金属樹脂複合材 |
WO2021025124A1 (ja) * | 2019-08-08 | 2021-02-11 | 住友ベークライト株式会社 | フェノール樹脂組成物 |
JP7412565B2 (ja) | 2020-07-22 | 2024-01-12 | 三井化学株式会社 | 金属部材、金属樹脂複合体、及び金属部材の製造方法 |
WO2024034544A1 (ja) * | 2022-08-10 | 2024-02-15 | 三井化学株式会社 | 構造体及び構造体の製造方法 |
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- 2014-11-28 WO PCT/JP2014/081608 patent/WO2015087722A1/ja active Application Filing
- 2014-11-28 JP JP2015552392A patent/JP6512106B2/ja active Active
- 2014-12-05 TW TW103142335A patent/TW201540490A/zh unknown
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Cited By (6)
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WO2019159929A1 (ja) | 2018-02-14 | 2019-08-22 | 三菱ケミカル株式会社 | 難燃性金属樹脂複合材 |
EP4306735A2 (en) | 2018-02-14 | 2024-01-17 | Mitsubishi Chemical Infratec Co., Ltd. | Flame retardant metal-resin composite material |
WO2021025124A1 (ja) * | 2019-08-08 | 2021-02-11 | 住友ベークライト株式会社 | フェノール樹脂組成物 |
JPWO2021025124A1 (ja) * | 2019-08-08 | 2021-09-13 | 住友ベークライト株式会社 | フェノール樹脂組成物 |
JP7412565B2 (ja) | 2020-07-22 | 2024-01-12 | 三井化学株式会社 | 金属部材、金属樹脂複合体、及び金属部材の製造方法 |
WO2024034544A1 (ja) * | 2022-08-10 | 2024-02-15 | 三井化学株式会社 | 構造体及び構造体の製造方法 |
Also Published As
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TW201540490A (zh) | 2015-11-01 |
JPWO2015087722A1 (ja) | 2017-03-16 |
JP6512106B2 (ja) | 2019-05-15 |
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