WO2015019700A1 - ニトリルゴム-金属積層ガスケット素材 - Google Patents
ニトリルゴム-金属積層ガスケット素材 Download PDFInfo
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- WO2015019700A1 WO2015019700A1 PCT/JP2014/065463 JP2014065463W WO2015019700A1 WO 2015019700 A1 WO2015019700 A1 WO 2015019700A1 JP 2014065463 W JP2014065463 W JP 2014065463W WO 2015019700 A1 WO2015019700 A1 WO 2015019700A1
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- WIPO (PCT)
- Prior art keywords
- nitrile rubber
- gasket material
- fluorine
- metal
- laminated gasket
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
- F16J15/0806—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing characterised by material or surface treatment
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/34—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing fluorides or complex fluorides
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- 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
- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- 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
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
-
- 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
- B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
-
- 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
- B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
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- 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
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F11/00—Arrangements of sealings in combustion engines
- F02F11/002—Arrangements of sealings in combustion engines involving cylinder heads
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
- F16J15/0818—Flat gaskets
- F16J15/0825—Flat gaskets laminated
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- 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
- B32B2255/00—Coating on the layer surface
- B32B2255/06—Coating on the layer surface on metal layer
-
- 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
- B32B2255/00—Coating on the layer surface
- B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
-
- 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
- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric coating
-
- 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
- B32B2581/00—Seals; Sealing equipment; Gaskets
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
- F16J15/0818—Flat gaskets
- F16J2015/0856—Flat gaskets with a non-metallic coating or strip
Definitions
- the present invention relates to a nitrile rubber-metal laminated gasket material. More specifically, the present invention relates to a nitrile rubber-metal laminated gasket material suitably used as an engine cylinder head gasket or the like.
- ⁇ Mild steel and stainless steel are mainly used as metal materials for engine cylinder head gasket materials that require water resistance, LLC (long life coolant) resistance and heat resistance.
- LLC long life coolant
- a vulcanized adhesive directly to these metal materials, even if the metal material and rubber are bonded, the liquid-resistant adhesion durability is poor, and the rubber metal laminate is immersed in water, LLC, etc. When the test is carried out, adhesion debonding occurs. Therefore, as a rubber-metal laminated gasket material, a material obtained by subjecting a SPCC steel plate, a SUS steel plate or the like to surface treatment and vulcanizing and bonding various rubbers through an adhesive is used.
- the surface treatment for the purpose of improving the adhesion between the metal plate and the rubber for example, zinc phosphate treatment or iron phosphate treatment is used. These treatments are intended to generate an insoluble film on the steel sheet by immersing the degreased steel sheet in an acidic chemical solution to ensure rust prevention and adhesion with an adhesive.
- sludge industrial waste
- iron phosphate treatment iron phosphate treatment
- Patent Documents 1 and 2 The present applicant has previously proposed that a coating chromate treatment is performed on stainless steel as a pretreatment for applying a vulcanized adhesive to improve resistance to water, LLC, etc. (Patent Documents 1 and 2). .
- the coating-type chromate treatment is not preferable from the viewpoint of environmental measures because it contains Cr 6+ ions.
- Patent Document 3 a surface treatment agent containing an organic resin, silica and a fluoride-derived titanium compound or zirconia compound has been proposed (see Patent Document 3). Since fluorine is contained, it is necessary to remove fluorine from wastewater, which complicates equipment.
- An object of the present invention is to provide a rubber-metal laminated gasket material which uses a metal surface treatment agent containing neither chromium nor fluorine and is excellent in LLC resistance and oil resistance at high temperatures.
- An object of the present invention is to provide a nitrile rubber-metal laminated gasket material in which a surface treatment agent layer, an adhesive layer, and a rubber layer are sequentially laminated on a metal plate, the surface treatment agent layer does not contain chromium,
- a nitrile rubber-metal laminated gasket formed using a surface treating agent containing (A) urethane resin or phenol resin, (B) silicon-containing compound, and (C) fluorine-free zirconium compound or fluorine-free titanium compound as an essential component. Achieved by the material.
- the nitrile rubber-metal laminated gasket material according to the present invention uses a surface treatment agent for metal containing neither chromium nor fluorine, for example, in LLC or in oil considering the actual use environment of an engine cylinder head gasket. Further, even in the heat resistance test method in the air, the adhesion peeling does not occur, and excellent LLC resistance, oil resistance and heat resistance are exhibited. Moreover, since the surface treatment agent does not contain fluorine, there is no need to remove fluorine from wastewater, and the surface treatment does not form a film by a chemical reaction with a stainless steel plate like zinc phosphate treatment. Since it is only formed by applying the prepared medicine, there is an excellent effect that no sludge is generated.
- a surface treatment agent for metal containing neither chromium nor fluorine for example, in LLC or in oil considering the actual use environment of an engine cylinder head gasket. Further, even in the heat resistance test method in the air, the adhesion peeling does not occur, and excellent LLC resistance, oil resistance and heat resistance are
- the metal plate mild steel, stainless steel plate, aluminum, aluminum die cast or the like is used.
- As the stainless steel plate SUS301, SUS301H, SUS304, SUS430, or the like is used. Since the plate thickness is used for gaskets, a thickness of about 0.1 to 2 mm is generally used.
- the surface does not contain chromium and contains (A) a urethane resin or a phenol resin, (B) a silicon-containing compound, and (C) a fluorine-free zirconium compound or a fluorine-free titanium compound as an essential component.
- a treatment agent is applied.
- the metal plate is preferably used after being subjected to a surface roughening treatment and an alkali degreasing treatment.
- the urethane resin is a synthetic resin having a urethane bond (-NHCOO-), and generally a resin obtained by a polyaddition reaction between a polyol having two or more active hydrogen groups and a polyisocyanate having two or more isocyanate groups should be used. it can.
- polyester polyols include polyester polyols and polyether polyols.
- the polyester polyol include ethylene glycol, diethylene glycol, triethylene glycol, 1,2-propylene glycol, 1,3-propylene glycol, neopentyl glycol, 1,2-butylene glycol, 1,3-butylene glycol, 1,4 -Low molecular weight polyols such as butylene glycol, 3-methylpentanediol, hexamethylene glycol, hydrogenated bisphenol A, trimethylolpropane, glycerin, succinic acid, glutaric acid, adipic acid, sebacic acid, phthalic acid, isophthalic acid, Examples thereof include polyester compounds having a hydroxyl group at the terminal obtained by reaction with a polybasic acid such as terephthalic acid, trimellitic acid, tetrahydrophthalic acid, endomethylenetetrahydrophthalic acid, and hexahydrophthalic acid.
- polyether polyol examples include ethylene glycol, diethylene glycol, triethylene glycol, 1,2-propylene glycol, 1,3-propylene glycol, neopentyl glycol, 1,2-butylene glycol, 1,3-butylene glycol, 1,4-butylene glycol, 3-methylpentanediol, hexamethylene glycol, bisphenol A, hydrogenated bisphenol A, trimethylolpropane, glycerin and other low molecular weight polyol ethylene oxide and / or propylene oxide high adducts, polyethylene glycol, Polyether polyols such as polypropylene glycol, poly (ethylene / propylene) glycol, polytetramethyl glycol, polycarbonate diol, polycaprolactone polyol, Li olefin polyols, polybutadiene polyols, and the like.
- polyisocyanate examples include aliphatic, alicyclic or aromatic polyisocyanates. Specifically, tetramethylene diisocyanate, hexamethylene diisocyanate, tolidine diisocyanate, hydrogenated xylylene diisocyanate, 1,4-cyclohexylene diisocyanate, 4 , 4′-dicyclohexylmethane diisocyanate, 2,4′-dicyclohexylmethane diisocyanate, isophorone diisocyanate, 3,3′-dimethoxy-4,4′-biphenylene diisocyanate, 1,5-naphthalene diisocyanate, 1,5-tetrahydronaphthalene diisocyanate, 2,4-tolylene diisocyanate, 2,6-tolylene diisocyanate, 4,4'-diphenylmethane diisocyanate, 2,4'-diphenylmethane diisocyanate, pheny
- urethane resin that is a polyaddition reaction product of polyol and polyisocyanate
- those having a molecular weight of 500 to 500,000 measured by gel permeation chromatography are preferably used.
- a diamine-based curing agent represented by methylenebis-2-chloroaniline [MOCA], 4,4′-methylenebis (3-chloro-2,6-diethyl) aniline, 4,4′- Curing agents such as MOCA alternative diamine curing agent represented by methylenebis (N-secondary aniline), polyhydric alcohol curing agent represented by 1,4-butanediol-trimethylolpropane combination system, or dilaurin
- MOCA methylenebis-2-chloroaniline
- 4,4′-methylenebis (3-chloro-2,6-diethyl) aniline 4,4′- Curing agents
- phenol resin examples include those obtained by reaction of at least one phenol such as phenol, cresol and xylenol with formaldehyde, and any of novolak type resin and resol type resin can be used, and its molecular weight Is not particularly limited.
- a novolak type resin hexamethylenetetramine or the like is used as a curing agent, and in any case, a phenol resin film is formed through a drying step.
- the silicon-containing compound examples include silane coupling agents and colloidal silica, and the silane coupling agent is preferably 2- (3,4-epoxycyclohexyl) ethyltrimethoxysilane, 3-glycidoxypropyl.
- Epoxy group-containing silane coupling agents such as trimethoxysilane, 3-glycidoxypropyltriethoxysilane, 3-glycidoxypropylmethyldimethoxysilane, and glycidoxypropyldiethoxysilane are used.
- colloidal silica commercially available products such as Nissan Snowtech MEK-ST (methyl ethyl ketone dispersion), Snowtex IPA-ST (isopropyl alcohol dispersion), Snowtex EG-ST (ethylene glycol dispersion), Snowtex MIBK -ST (methyl isobutyl ketone dispersion), methanol silica sol, etc. can be used as they are.
- the urethane resin or phenol resin and the silicon-containing compound have a resin component as a binder component in a total amount of about 45 to 90% by weight, preferably about 50 to 88% by weight. It is used in a proportion of about 55 to 10% by weight, preferably about 50 to 12% by weight.
- the silicon-containing compound is used at a lower ratio, the LLC resistance is deteriorated, whereas when it is used at a higher ratio, the heat resistance is deteriorated.
- Fluorine-free zirconium compounds include fluorine such as zirconium lactate, zirconium lactate ammonium, zirconium sulfate, zirconium oxysulfate, zirconium ammonium sulfate, zirconium nitrate, zirconium oxynitrate, zirconium ammonium nitrate, zirconium acetate, zirconium chloride, and ammonium zirconium carbonate.
- Zirconium compounds not contained are mentioned, and preferably zirconium ammonium lactate and zirconium ammonium nitrate are used. At least one of these zirconium compounds is used at a content of 1 to 20% by weight, preferably 1 to 15% by weight, as the metal Zr.
- Non-fluorine-containing titanium compounds include titanium compounds that do not contain fluorine, such as titanium lactate, ammonium lactate ammonium, titanium sulfate, titanium oxysulfate, titanium ammonium sulfate, titanium nitrate, titanium oxynitrate, and titanium ammonium nitrate. Titanium ammonium and titanium ammonium nitrate are used. At least one of these titanium compounds is used at a content of 1 to 20% by weight, preferably 1 to 15% by weight, as the metal Ti.
- the surface treatment agent comprising the above essential components is preferably 0.2 to 8.0 times, in terms of weight, of fluorine-free zirconium compound or fluorine-free titanium compound relative to the total amount of urethane resin or phenol resin and silicon-containing compound, preferably It is used by blending so that it becomes 0.25 to 7.5 times.
- the fluorine-free zirconium compound or the fluorine-free titanium compound is used in a smaller ratio, the LLC resistance deteriorates.
- the binder component is used. Since the amount of a certain resin component is reduced, the coating is liable to fall off, which is not preferable in the process.
- the surface treatment agent is diluted with water so that the solid content concentration is 0.5 to 3.0% by weight, dispersed using a homogenizer, etc., and then the desired coating weight (weight per side) on a metal plate by roll coating, etc. For example, it is applied so as to be 10 to 2,000 mg / m 2 , preferably 30 to 1,500 mg / m 2 , dried and then baked at 100 to 300 ° C. to form a film.
- thermosetting phenol resin any thermosetting phenol resin such as a cresol novolac type phenol resin, a cresol resol type phenol resin, or an alkyl-modified phenol resin can be used.
- epoxy resin a cresol novolac type epoxy resin is preferably used. In this case, a bisphenol novolac type phenol resin is used as a curing agent, and an imidazole compound is used as a curing catalyst.
- These resin-based vulcanized adhesives generally have an alcohol organic solvent such as methanol, ethanol and isopropanol, or a ketone organic solvent such as acetone, methyl ethyl ketone and methyl isobutyl ketone, either alone or as a mixed solvent, and the component concentration thereof is about 1 to After being prepared as a 5% by weight organic solvent solution, applied at a single-surface weight of 50 to 3,000 mg / m 2 (application amount) by the same application method as for the surface treatment agent, and dried at room temperature or warm air Baked at 100-250 ° C for 1-20 minutes.
- an alcohol organic solvent such as methanol, ethanol and isopropanol
- a ketone organic solvent such as acetone, methyl ethyl ketone and methyl isobutyl ketone
- a vulcanized layer having a single-side thickness of about 5 to 120 ⁇ m is formed on both sides. It is applied as a solvent solution.
- Nitrile rubber can be used as a compound using a sulfur vulcanizing agent such as sulfur or tetramethylthiuram monosulfide, but preferably an unvulcanized nitrile using an organic peroxide as a crosslinking agent. Used as a rubber compound. Examples of such peroxide-crosslinked unvulcanized nitrile rubber compounds include the following blending examples. In addition, this invention is applicable also to the hydrogenated nitrile rubber by which a peroxide bridge
- NBR medium-high nitrile; JSR product N237) 100 parts by weight HAF carbon black 10 ⁇ SRF carbon black 40 ⁇ Cellulose powder 10 ⁇ Zinc flower 10 ⁇ Stearic acid 1 ⁇ Microcrystalline wax 2 ⁇ Anti-aging agent (ODA-NS, Ouchi Emerging Chemicals) 4 ⁇ Plasticizer (Buyer OT product from Bayer) 5 ⁇ Organic peroxide (NIPPON OIL & PRODUCTS PERHEXA 25B) 6 N, Nm-Phenylenedimaleimide 1 ⁇ (Composition Example II) NBR (JSR product N235S) 100 parts by weight SRF carbon black 80 ⁇ Calcium carbonate 80 ⁇ Powdered silica 20 ⁇ Zinc oxide 5 ⁇ Anti-aging agent (Ouchi Emerging Chemical Product Nocrack 224) 2 ⁇ Triallyl isocyanurate 2 ⁇ 1,3-bis (tert-butylperoxy) isopropylbenzene 2.5 ⁇ Plasticizer (Buyer OT product from Bayer) 5
- the applied unvulcanized rubber layer is dried, for example, at a temperature of room temperature to about 100 ° C. for about 1 to 15 minutes, and alcohols such as methanol and ethanol used as an organic solvent, ketones such as methyl ethyl ketone and methyl isobutyl ketone are used. , Aromatic hydrocarbons such as toluene and xylene, or mixed solvents thereof are volatilized, and then heated and vulcanized at about 150 to 230 ° C. for about 0.5 to 45 minutes. At that time, if necessary, pressurization and vulcanization are also performed.
- the vulcanized rubber layer preferably has a hardness (durometer A) of 80 or more and a compression set (100 ° C., 22 hours) of 50% or less, and satisfies the desired properties. As long as it is made, it is not particularly limited by the content of blending. Moreover, when it is necessary to prevent adhesion, an anti-adhesive agent can be applied to the surface.
- the anti-tacking agent is used for the purpose of preventing adhesion between rubbers or between rubber and metal, and any anti-tacking agent can be used as long as it can form a film on the vulcanized rubber layer.
- Fluorine-based, graphite-based, amide, paraffin-based wax-based, polyolefin-based or polybutadiene-based materials, etc. are preferable, preferably liquid 1,2-polybutadiene hydroxyl group-containing material, 1,2-polybutadiene isocyanate group-containing material and
- An anti-sticking agent comprising an organic solvent dispersion of a polyolefin resin is used (Patent Document 5).
- Examples 1 to 17 and Comparative Examples 1 to 5 After roughening and alkali degreasing both sides of SPCC steel plate (thickness 0.25mm), urethane resin (Nippon Polyurethane Industry CORONATE 3015E) or novolac type phenolic resin (Gunei Chemical Industry PS-4271; hexamethylene as curing agent) Tetramine use), colloidal silica (Nissan Snowtech MEK-ST), fluorine-free zirconium compound (Matsumoto Fine Chemical product Olga Tix ZC-300; zirconium lactate ammonium salt, Zr content 2.7 wt%) or fluorine-free titanium compound (Matsumoto Fine Chemicals product Orgatics TC-300; Titanium lactate ammonium salt, Ti content 6.5% by weight) After drying, the surface treatment agent was blended so that the weight part ratio would be the predetermined ratio described later with water and the solid content concentration was 1.2% Diluted to a uniform and uniformly dispersed with a homogenizer. And
- vulcanized adhesive solution A or B having the following composition was applied to both sides with a coating amount of 2,000 mg / m 2 on one side using a roll coat, and baked at 200 ° C. for 5 minutes in an oven furnace. It was.
- a 25 wt% methyl ethyl ketone solution of the nitrile rubber compound of Formulation Example I or II was uniformly dried using a knife coater so that the thickness was 65 ⁇ m on one side. After coating and drying the solvent at room temperature, a nitrile rubber layer was formed by heat treatment at 160 ° C. for about 30 minutes in an oven furnace to obtain a nitrile rubber-metal laminate.
- Oil resistance 120 in polyalkylene glycol oil (Idemitsu Kosan product Daphne Hermetic Oil NF) Immersion at °C for 500 hours
- Heat resistance Exposure to a constant temperature bath at 120 °C for 500 hours [Adhesion evaluation criteria] 5: The rubber layer remains completely. 4: The rubber layer is partially removed 3: About half of the rubber layer is removed 2: The rubber layer remains slightly 1: The rubber layer is Completely missing
- the nitrile rubber-metal laminated gasket material according to the present invention uses a metal surface treatment agent containing neither chromium nor fluorine, it has excellent LLC resistance and oil resistance at high temperatures. It is effectively used as a gasket material such as cylinder head gasket material.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Gasket Seals (AREA)
- Laminated Bodies (AREA)
- Chemical Treatment Of Metals (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
Description
(配合例I)
NBR(中高ニトリル;JSR製品N237) 100重量部
HAFカーボンブラック 10 〃
SRFカーボンブラック 40 〃
セルロースパウダー 10 〃
亜鉛華 10 〃
ステアリン酸 1 〃
マイクロクリスタリンワックス 2 〃
老化防止剤(大内新興化学製品ODA-NS) 4 〃
可塑剤(バイエル社製品ブカノールOT) 5 〃
有機過酸化物(日本油脂製品パーヘキサ25B) 6 〃
N,N-m-フェニレンジマレイミド 1 〃
(配合例II)
NBR(JSR製品N235S) 100重量部
SRFカーボンブラック 80 〃
炭酸カルシウム 80 〃
粉末状シリカ 20 〃
酸化亜鉛 5 〃
老化防止剤(大内新興化学製品ノクラック224) 2 〃
トリアリルイソシアヌレート 2 〃
1,3-ビス(第3ブチルパーオキシ)イソプロピルベンゼン 2.5 〃
可塑剤(バイエル社製品ブカノールOT) 5 〃
SPCC鋼板(厚さ0.25mm)の両面を粗面化およびアルカリ脱脂した後、ウレタン樹脂(日本ポリウレタン工業製品CORONATE 3015E)またはノボラック型フェノール樹脂(群栄化学工業製品PS-4271;硬化剤としてヘキサメチレンテトラミン使用)、コロイダルシリカ(日産化学製品スノーテックスMEK-ST)、フッ素非含有ジルコニウム化合物(マツモトファインケミカル製品オルガチックスZC-300;ジルコニウムラクテートアンモニウム塩、Zr含有量2.7重量%)またはフッ素非含有チタン化合物(マツモトファインケミカル製品オルガチックスTC-300;チタンラクテートアンモニウム塩、Ti含有量6.5重量%)を乾燥後重量部比率が後記所定割合となるように配合した表面処理剤を水で固形分濃度が1.2%となるように希釈し、ホモジナイザーで均一に分散させた後、所定の皮膜重量(片面目付量)となるように、ロールコート法によって両面に塗布し、オーブン炉中で100℃、1分間の乾燥を行った。各成分の乾燥後重量部比率および目付量は次の表1に示される。
〔加硫接着剤溶液A〕
ノボラック型フェノール樹脂 100重量部
(群栄化学工業製品レヂトップPSF-2803)
レゾール型フェノール樹脂(30重量%メタノール溶液) 150 〃
(同社製品レヂトップPL-2208)
前記配合例Iのニトリルゴムコンパウンド 133 〃
(25重量%トルエン-メチルエチルケトン混合溶媒溶液)
メチルエチルケトン 3182 〃
〔加硫接着剤溶液B〕
レゾール型フェノール樹脂(30重量%メタノール溶液) 150 〃
(レヂトップPL-2208)
o-クレゾールノボラック型エポキシ樹脂 18 〃
(ジャパンエポキシレジン製品エピコート180S)
2-エチル-4-メチルイミダゾール 0.9 〃
前記配合例IIのニトリルゴムコンパウンド 96 〃
(25重量%トルエン-メチルエチルケトン混合溶媒溶液)
メチルエチルケトン 7631 〃
耐LLC性:体積比で市販LLC(日本ケミカル製品JCC310):水=1:1の
浸漬液に、120℃、500時間浸漬
耐油性:ポリアルキレングリコール油(出光興産製品ダフニーハーメ
チックオイルNF)に120℃、500時間浸漬
耐熱性:120℃の恒温槽内に500時間暴露
〔接着性評価基準〕
5:ゴム層が完全に残存している
4:ゴム層が一部脱落している
3:ゴム層の約半分が脱落している
2:ゴム層がわずかに残存している
1:ゴム層が完全に脱落している
Claims (7)
- 金属板上に表面処理剤層、接着剤層およびゴム層を順次積層してなるニトリルゴム-金属積層ガスケット素材において、該表面処理剤層を、クロムを含有せず、(A)ウレタン樹脂またはフェノール樹脂、(B)含ケイ素化合物および(C)フッ素非含有ジルコニウム化合物またはフッ素非含有チタン化合物を必須成分とする表面処理剤を用いて形成させたニトリルゴム-金属積層ガスケット素材。
- (A)成分ウレタン樹脂またはフェノール樹脂と(B)成分含ケイ素化合物との合計量中、(A)成分が45~90重量%、(B)成分が55~10重量%の割合の表面処理剤が用いられた請求項1記載のニトリルゴム-金属積層ガスケット素材。
- (C)成分フッ素非含有ジルコニウム化合物またはフッ素非含有チタン化合物が、(A)成分ウレタン樹脂またはフェノール樹脂と(B)成分含ケイ素化合物との合計量に対して重量換算で0.2~8.0倍の割合で配合された表面処理剤が用いられた請求項1記載のニトリルゴム-金属積層ガスケット素材。
- (B)成分含ケイ素化合物がシランカップリング剤またはコロイダルシリカである請求項1記載のニトリルゴム-金属積層ガスケット素材。
- 金属板が粗面化処理およびアルカリ脱脂処理されたものである請求項1記載のニトリルゴム-金属積層ガスケット素材。
- エンジン用シリンダヘッドガスケットとして用いられる請求項1乃至5のいずれかの請求項に記載のニトリルゴム-金属積層ガスケット素材。
- 請求項6記載のニトリルゴム-金属積層ガスケット素材よりなるエンジン用シリンダヘッドガスケット。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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CN201480044620.3A CN105637119A (zh) | 2013-08-09 | 2014-06-11 | 丁腈橡胶-金属层叠垫片原材料 |
US14/910,963 US20160195188A1 (en) | 2013-08-09 | 2014-06-11 | Nitrile rubber-metal laminated gasket material |
JP2014552234A JP5729524B1 (ja) | 2013-08-09 | 2014-06-11 | ニトリルゴム−金属積層ガスケット素材 |
EP14834499.7A EP3031952A4 (en) | 2013-08-09 | 2014-06-11 | (nitrile rubber)-metal-laminated gasket material |
Applications Claiming Priority (2)
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JP2013165707 | 2013-08-09 | ||
JP2013-165707 | 2013-08-09 |
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WO2015019700A1 true WO2015019700A1 (ja) | 2015-02-12 |
Family
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PCT/JP2014/065463 WO2015019700A1 (ja) | 2013-08-09 | 2014-06-11 | ニトリルゴム-金属積層ガスケット素材 |
Country Status (5)
Country | Link |
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US (1) | US20160195188A1 (ja) |
EP (1) | EP3031952A4 (ja) |
JP (1) | JP5729524B1 (ja) |
CN (1) | CN105637119A (ja) |
WO (1) | WO2015019700A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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EP3708881B1 (en) * | 2017-11-07 | 2023-05-03 | Nok Corporation | Gasket material |
US20230140565A1 (en) * | 2020-03-17 | 2023-05-04 | Nok Corporation | Rubber-metal laminate and gasket |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH0550316B2 (ja) | 1985-04-16 | 1993-07-28 | Tokyo Shibaura Electric Co | |
JPH07165953A (ja) | 1993-12-10 | 1995-06-27 | Nok Corp | 加硫ゴム用表面処理剤 |
JPH11221875A (ja) | 1997-12-05 | 1999-08-17 | Nok Corp | ゴム積層金属板 |
JP2000006307A (ja) | 1998-06-29 | 2000-01-11 | Nok Corp | ゴム積層金属板 |
JP2006169550A (ja) * | 2004-12-13 | 2006-06-29 | Nisshin Steel Co Ltd | ガスケット用表面処理ステンレス鋼板およびガスケット用ゴム被覆ステンレス鋼板 |
JP2006283182A (ja) * | 2005-04-05 | 2006-10-19 | Sumitomo Metal Ind Ltd | メタルガスケット用表面処理ステンレス鋼板とその製造方法。 |
WO2011002040A1 (ja) | 2009-07-02 | 2011-01-06 | 日本パーカライジング株式会社 | クロムおよびフッ素フリー金属表面用化成処理液、金属表面処理方法および金属表面塗装方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005299823A (ja) * | 2004-04-13 | 2005-10-27 | Nok Corp | ゴム−金属積層ガスケット素材 |
JP2006263182A (ja) * | 2005-03-24 | 2006-10-05 | Olympia:Kk | 遊技機 |
WO2008123339A1 (ja) * | 2007-03-27 | 2008-10-16 | Nok Corporation | ゴム金属積層体 |
EP2174723B1 (en) * | 2007-08-01 | 2014-03-12 | NOK Corporation | Method for producing nitrile rubber metal laminate |
WO2011122119A1 (ja) * | 2010-03-29 | 2011-10-06 | 関西ペイント株式会社 | 表面処理組成物 |
CN102000945A (zh) * | 2010-09-26 | 2011-04-06 | 杭州内燃机缸垫有限公司 | 多品种中小批量生产金属气缸垫的涂层金属板的加工工艺 |
-
2014
- 2014-06-11 EP EP14834499.7A patent/EP3031952A4/en not_active Withdrawn
- 2014-06-11 JP JP2014552234A patent/JP5729524B1/ja active Active
- 2014-06-11 CN CN201480044620.3A patent/CN105637119A/zh active Pending
- 2014-06-11 WO PCT/JP2014/065463 patent/WO2015019700A1/ja active Application Filing
- 2014-06-11 US US14/910,963 patent/US20160195188A1/en not_active Abandoned
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0550316B2 (ja) | 1985-04-16 | 1993-07-28 | Tokyo Shibaura Electric Co | |
JPH07165953A (ja) | 1993-12-10 | 1995-06-27 | Nok Corp | 加硫ゴム用表面処理剤 |
JPH11221875A (ja) | 1997-12-05 | 1999-08-17 | Nok Corp | ゴム積層金属板 |
JP2000006307A (ja) | 1998-06-29 | 2000-01-11 | Nok Corp | ゴム積層金属板 |
JP2006169550A (ja) * | 2004-12-13 | 2006-06-29 | Nisshin Steel Co Ltd | ガスケット用表面処理ステンレス鋼板およびガスケット用ゴム被覆ステンレス鋼板 |
JP2006283182A (ja) * | 2005-04-05 | 2006-10-19 | Sumitomo Metal Ind Ltd | メタルガスケット用表面処理ステンレス鋼板とその製造方法。 |
WO2011002040A1 (ja) | 2009-07-02 | 2011-01-06 | 日本パーカライジング株式会社 | クロムおよびフッ素フリー金属表面用化成処理液、金属表面処理方法および金属表面塗装方法 |
Non-Patent Citations (1)
Title |
---|
See also references of EP3031952A4 |
Also Published As
Publication number | Publication date |
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EP3031952A4 (en) | 2017-03-15 |
JPWO2015019700A1 (ja) | 2017-03-02 |
EP3031952A1 (en) | 2016-06-15 |
US20160195188A1 (en) | 2016-07-07 |
CN105637119A (zh) | 2016-06-01 |
JP5729524B1 (ja) | 2015-06-03 |
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