WO2019131436A1 - 金属材料用表面処理剤、並びに表面処理皮膜を有する金属材料及びその製造方法 - Google Patents
金属材料用表面処理剤、並びに表面処理皮膜を有する金属材料及びその製造方法 Download PDFInfo
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- 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
- C23C22/24—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 hexavalent chromium compounds
- C23C22/30—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 hexavalent chromium compounds containing also trivalent chromium
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- C23C22/40—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 molybdates, tungstates or vanadates
- C23C22/44—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 molybdates, tungstates or vanadates containing also fluorides or complex fluorides
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- C23C22/26—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 hexavalent chromium compounds containing also organic compounds
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- 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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- 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
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- C23C2222/00—Aspects relating to chemical surface treatment of metallic material by reaction of the surface with a reactive medium
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- C23C2222/00—Aspects relating to chemical surface treatment of metallic material by reaction of the surface with a reactive medium
- C23C2222/20—Use of solutions containing silanes
Definitions
- the present invention relates to a surface treatment agent used for a metal material, a metal material having a surface treatment film formed by the surface treatment agent, and a method for producing the same.
- Patent Document 1 comprises a component (A) comprising a water-soluble trivalent chromium compound, a component (B) comprising at least one selected from a water-soluble titanium compound and a water-soluble zirconium compound, and a water-soluble nitrate compound.
- Component (C) a component (D) consisting of a water-soluble aluminum compound, and a component (E) consisting of a fluorine compound, and the pH is controlled in the range of 2.3 to 5.0.
- a chemical conversion solution for metal materials is disclosed.
- Patent Document 2 discloses a chemical conversion treatment liquid containing a predetermined amount of a specific trivalent chromium compound, a specific zirconium compound and a specific dicarboxylic acid compound.
- Patent Document 3 discloses an aqueous surface treatment agent containing a specific water-soluble compound (A) and a compound (B) containing at least one element selected from the group consisting of boron, titanium, zirconium and silicon. Is disclosed.
- the present invention relates to a surface treatment agent for metal material which can form a film having excellent corrosion resistance to various metal materials, a metal material having a surface treatment film formed by the surface treatment agent for metal material, and the same
- the purpose is to provide a manufacturing method.
- blended the compound (D) discovers that the film
- a surface treatment agent for surface-treating a metal material the source (A) of at least one trivalent chromium-containing ion A, and an ion containing titanium and an ion containing zirconium
- a surface treatment agent for a metal material capable of forming a film having excellent corrosion resistance to various metal materials, and a metal material having a surface treatment film formed by the surface treatment agent for the metal material And it becomes possible to provide the manufacturing method.
- the surface treatment agent which concerns on this embodiment is a chemical
- the surface treatment agent can also be used as a chemical conversion treatment agent.
- the surface treatment agent is at least one selected from the group consisting of a source (A) providing at least one ion A containing trivalent chromium, an ion containing titanium and an ion containing zirconium.
- (B) providing an ion B of the formula, an alkoxysilyl group, an aromatic ring, a hydroxy group directly bonded to the aromatic ring, a primary amino group, a secondary amino group, a tertiary Water-soluble or has at least one amino group selected from the group consisting of an amino group and a quaternary ammonium group, and the alkoxysilyl group is bonded to a nitrogen atom of the amino group directly or via an alkylene group
- the surface treatment agent for metal materials may mix
- each component, composition (blending amount, blending ratio) and liquid property will be described in detail.
- an ion containing the said metal a metal ion, an oxide ion, a hydroxide ion, a complex ion etc. can be mentioned.
- hexavalent chromium may or may not be included, in consideration of the influence on the environment, a form substantially free of hexavalent chromium is preferable.
- the source (A) in the surface treatment agent for metallic materials is not particularly limited as long as it can provide the ion A by mixing in an aqueous medium.
- a source (A) chromium fluoride (III), chromium nitrate (III), chromium sulfate (III), chromium phosphate (III) etc. are mentioned, for example. Although these sources (A) may use only 1 type, 2 or more types may be used.
- the content of the ion A in the surface treatment agent for metal materials is not particularly limited, but is usually in the range of 10 to 500 mg / L in terms of chromium equivalent mass concentration, and preferably in the range of 25 to 300 mg / L.
- the source (B) in the surface treatment agent for metal materials is not particularly limited as long as it can provide the ions B by mixing in an aqueous medium.
- the supply source (B) for example, titanium sulfate, titanium oxysulfate, titanium ammonium sulfate, titanium nitrate, titanium oxynitrate, titanium oxynitrate, titanium ammonium nitrate, hexafluorotitanic acid, hexafluorotitanium complex salt, zirconium sulfate, zirconium oxysulfate, sulfuric acid Zirconium ammonium, zirconium nitrate, zirconium oxynitrate, zirconium ammonium nitrate, hexafluorozirconic acid, hexafluorozirconium complex salt, titanium lactate, titanium acetylacetonate, titanium triethanolaminate, titanium octyl glycolate, tetrais
- the content of ion B in the surface treatment agent for metal materials is not particularly limited, but the metal conversion mass concentration (total metal conversion mass concentration in the case of mixing two or more sources) is usually 10 to 500 mg / It is in the range of L, preferably in the range of 25 to 300 mg / L.
- the compound (C) in the surface treatment agent for metal materials is an alkoxysilyl group, an aromatic ring, a hydroxy group directly bonded to the aromatic ring, a primary amino group, a secondary amino group, a tertiary Water-soluble or has at least one amino group selected from the group consisting of an amino group and a quaternary ammonium group, and the alkoxysilyl group is bonded to a nitrogen atom of the amino group directly or via an alkylene group It is a water dispersible compound.
- the compound (C) may be a monomer, may be a homopolymer, or may be a copolymer.
- the alkoxysilyl group may be a group having a silicon atom and an alkoxy group directly bonded to the silicon atom, and a silicon atom and at least two alkoxy groups directly bonded to the silicon atom may be used. It is preferably a group having one, more preferably a group having a silicon atom and three alkoxy groups directly bonded to the silicon atom.
- the alkoxy group is preferably an alkoxy group having 1 to 10 carbon atoms, and more preferably a methoxy group or an ethoxy group.
- the group which the alkoxysilyl group has other than the alkoxy group is not particularly limited, and preferred examples include a hydrogen atom and an alkyl group having 1 to 10 carbon atoms.
- alkoxysilyl group examples include dimethylmethoxysilyl group, methyldimethoxysilyl group, trimethoxysilyl group, diethylethoxysilyl group, ethyldiethoxysilyl group, triethoxysilyl group and the like.
- the compound (C) is a homopolymer or copolymer (in the case of having a repeating unit in the main chain)
- the compound (C) has an alkoxysilyl group in an amount of 0.01 to 100 per repeating unit of the compound (C).
- the number is preferably four, more preferably 0.05 to 2, and still more preferably 0.1 to 1.5.
- the compound (C) when the compound (C) is a monomer, it preferably has 1 to 4 alkoxysilyl groups in one molecule, more preferably 1 to 3 and more preferably 1 to 2. More preferable.
- the aromatic ring is not particularly limited, and examples thereof include a benzene ring, a naphthalene ring, an anthracene ring and the like, and a benzene ring is preferable.
- the compound (C) is one having at least one amino group selected from the group consisting of a primary amino group, a secondary amino group, a tertiary amino group and a quaternary ammonium group. Among them, a secondary amino group and a tertiary amino group are more preferable, and a tertiary amino group is more preferable.
- the compound (C) is, for example, an aromatic compound (a1) having at least one hydroxy group directly bonded to an aromatic ring, that is, a phenolic hydroxy group, an aminosilane (a2), and formaldehyde (Hereinafter referred to as “first method”) or an aromatic compound (a1) having at least one phenolic hydroxy group, an aminosilane (a2), an amine compound (a3), and formaldehyde These compounds can be obtained by the method of reacting (hereinafter referred to as “the second method”).
- the compound (C) obtained by the first method and the second method has an amino group as a substituent via the methylene group derived from formaldehyde in the aromatic ring possessed by the aromatic compound (a1) by so-called Mannich reaction It has a combined structure.
- the position of the substituent of the compound (C) is not particularly limited, it is preferable that the ortho position and / or the para position of the hydroxy group of the aromatic ring be substituted.
- the aromatic compound (a1) is not particularly limited as long as at least one hydroxy group is directly bonded to an aromatic ring, and examples thereof include phenol, bisphenol A, p-vinylphenol, naphthol, o-cresol, m-cresol, p-cresol and the like. Moreover, the homopolymer of these compounds can also be used.
- the polymerization method is not particularly limited, and known polymerization methods such as radical polymerization, cationic polymerization and condensation polymerization can be employed. In addition to these, phenol-cresol novolak copolymer, vinylphenol-styrene copolymer, etc. can also be used as the aromatic compound (a1).
- aromatic compound (a1) is modified with haloepoxides such as epichlorohydrin, carboxylic acids such as acetic acid, esters, amides, organosilanes such as trimethylsilyl chloride, alcohols, alkyl compounds such as dimethyl sulfate, etc. It is also possible to use one of them.
- haloepoxides such as epichlorohydrin
- carboxylic acids such as acetic acid, esters, amides
- organosilanes such as trimethylsilyl chloride
- alcohols alkyl compounds such as dimethyl sulfate, etc. It is also possible to use one of them.
- aromatic compounds (a1) may be used alone or in combination of two or more.
- the aromatic compound (a1) is at least one selected from the group consisting of phenol, bisphenol A, p-vinylphenol, naphthol, novolak resin, polybisphenol A, poly p-vinylphenol and phenol-naphthalene polycondensate Is more preferably at least one selected from the group consisting of novolak resin, polybisphenol A, poly p-vinylphenol and phenol-naphthalene polycondensate, and it is poly p-vinylphenol Is more preferred.
- the polybisphenol A means a compound represented by the following formula.
- s is an integer of 1 to 2000, preferably an integer of 5 to 1000.
- the poly p-vinylphenol means a compound represented by the following formula.
- the poly p-vinylphenol one obtained by polymerizing vinylphenol by a known polymerization method may be used, or a commercially available product may be used. Examples of commercially available products include Maruka Linker manufactured by Maruzen Petrochemical Co., Ltd.
- t is an integer of 1 to 4000, preferably an integer of 10 to 2000.
- the weight average molecular weight of the aromatic compound (a1) is not particularly limited, but is preferably 200 to 1,000,000, more preferably 500 to 500,000, and 1,000 to 200,000. Is more preferred. In the present specification, weight average molecular weight means a value measured by GPC (gel permeation chromatography) and converted to polystyrene, unless otherwise specified.
- the aminosilane (a2) is not particularly limited as long as it is a compound having a primary amino group and / or a secondary amino group (imino group) and an alkoxysilyl group, and for example, a table of the following formula (2) Preferred compounds are:
- R 3 represents a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, a benzyl group, an aryl group, a hydroxyalkyl group, a dihydroxyalkyl group, a trihydroxyalkyl group, an aminoalkyl group, an alkylaminoalkyl group , A dialkylaminoalkyl group, an acetyl group or an alkylcarbonyl group.
- the alkyl group is preferably an alkyl group having a carbon number of 1 to 10, more preferably a methyl group, an ethyl group, an i-propyl group or a t-butyl group.
- the alkenyl group is preferably an alkenyl group having a carbon number of 1 to 10, more preferably an allyl group.
- the alkynyl group is preferably an alkynyl group having a carbon number of 1 to 10, more preferably a propynyl group.
- the aryl group is preferably an aryl group having a carbon number of 1 to 10, more preferably a phenyl group, a tolyl group, a xylyl group or a naphthyl group, and more preferably a phenyl group.
- the hydroxyalkyl group is preferably a hydroxyalkyl group having a carbon number of 1 to 10, more preferably a 2-hydroxyethyl group.
- the dihydroxyalkyl group is preferably a dihydroxyalkyl group having 1 to 10 carbon atoms, and more preferably a bis (hydroxyethyl) group.
- the trihydroxyalkyl group is preferably a trihydroxyalkyl group having 1 to 10 carbon atoms, and more preferably a tris (hydroxyethyl) group.
- the aminoalkyl group is preferably an aminoalkyl group having 1 to 10 carbon atoms, and more preferably an aminoethyl group.
- the alkylaminoalkyl group is preferably an alkylaminoalkyl group having 1 to 10 carbon atoms, and more preferably 2-methylaminoethylene.
- the above dialkylaminoalkyl group is preferably a dialkylaminoalkyl group having 1 to 10 carbon atoms, and more preferably dimethylaminoethylene.
- the alkylcarbonyl group is preferably an alkylcarbonyl group having 1 to 10 carbon atoms, and more preferably an acetyl group.
- each of R 4 and R 5 is an alkyl group, preferably an alkyl group having 1 to 10 carbon atoms, and more preferably a methyl group or an ethyl group.
- the plurality of R 4 and R 5 may be the same or different.
- n is an integer of 1 to 3, preferably an integer of 2 to 3, and more preferably 3.
- m is preferably an integer of 1 to 3, more preferably 2 or 3, and still more preferably 3.
- examples of the aminosilane (a2) include ⁇ - (phenylamino) propyltrimethoxysilane, ⁇ -aminopropyltriethoxysilane, N-phenyl-3-aminopropyltriethoxysilane, and N- (2).
- the amount of the aminosilane (a2) used in the first method is preferably 1 to 1200 parts by mass, more preferably 2 to 600 parts by mass, and 3 to 300 parts by mass with respect to 100 parts by mass of the aromatic compound (a1). Is more preferred.
- the amount of the aminosilane (a2) used in the second method is preferably 1 to 1200 parts by mass, more preferably 2 to 600 parts by mass, and 3 to 300 parts by mass with respect to 100 parts by mass of the aromatic compound (a1). Is more preferred.
- the amine compound (a3) is not particularly limited as long as it is a compound having a primary amino group and / or a secondary amino group (imino group), but for example, a compound represented by the following formula (1) is preferable Can be mentioned.
- R 1 and R 2 are each the formula (2) is similar to R 3 of, R 1 and R 2 may form a morpholino group bonded to each other.
- the amine compound (a3) include alkylamines such as methylamine, ethylamine, isopropylamine, dimethylamine, diethylamine and diisopropylamine, monoethanolamine, diethanolamine, 2-methylaminoethanol, 2- Alkanolamines such as ethylaminoethanol, 3-methylamino-1,2-propanediol and N-methylglucamine Unsaturated such as aromatic amines such as aniline, p-methylaniline and N-methylaniline, vinylamine and allylamine Heterocyclic amines such as amines, pyrroles, pyrrolidines, imidazoles, indoles, morpholines, piperazines, ethylenediamines, N, N-dimethylethylenediamines, ethylenediamines, sym-dimethylethylenediamines, 1 6- hexamethylenediamine, can be used 1,3-propane diamine.
- the amount of the amine compound (a3) used in the second method is preferably 0.2 to 360 parts by mass, and more preferably 0.4 to 270 parts by mass with respect to 100 parts by mass of the aromatic compound (a1). 0.6 to 180 parts by mass is more preferable.
- the solvent is not particularly limited as long as it does not participate in the reaction, but, for example, water; alcohol solvents such as methanol and ethanol; ether solvents such as tetrahydrofuran and 1,4-dioxane; halogen such as dichloromethane and chloroform System solvents; ketone solvents such as acetone; etc. may be mentioned.
- the amount of formaldehyde used is preferably such that the molar ratio of formaldehyde to the amino group of the aminosilane (a2) (formaldehyde / amino group) is 1 to 100, and more preferably 2 to 50. .
- the amount of formaldehyde used in the second method is such that the molar ratio of formaldehyde (formaldehyde / amino group) to the total of the amino group of the aminosilane (a2) and the amino group of the amine compound (a3) is 1 to 100 Is preferable, and 2 to 50 is more preferable.
- the polymer containing the repeating unit represented by following formula (3) is one of the preferable aspects.
- R 6 is the same as R 3 of said Formula (2).
- R 7 is a single bond or an alkylene group, preferably an alkylene group having 1 to 10 carbon atoms, and more preferably a trimethylene group (— (CH 2 ) 3 —).
- Each of R 8 and R 9 is an alkyl group, preferably an alkyl group having 1 to 10 carbon atoms, and more preferably a methyl group or an ethyl group.
- Plural R 8 and R 9 may be the same or different.
- R 10 and R 11 are respectively the same as R 3 in the above formula (2), but R 10 and R 11 may be bonded to each other to form a morpholino group.
- p is an integer of 1 to 3, preferably 2 or 3, and more preferably 3.
- the polymer may contain a repeating unit other than the repeating unit represented by the formula (3).
- the polymer is represented by the repeating unit represented by the formula (3), the repeating unit represented by the following formula (5), the repeating unit represented by the following formula (6), and the following formula (7)
- Preferred is a polymer comprising at least one repeating unit selected from the group consisting of repeating units represented by the following formula (8) and repeating units represented by the following formula (9) It is one of the modes.
- the polymer may further contain a repeating unit other than the repeating unit represented by any one of the formulas (3) and (5) to (9).
- R 6 , R 7 , R 8 , R 9 , R 10 , R 11 and p respectively represent R 6 , R 7 , R 8 and R of the above formula (3) 9 , R 10 , R 11 and p are the same.
- the method of producing the polymer is not particularly limited, but a method of obtaining the polymer by reacting poly p-vinylphenol, the aminosilane (a2), the amine compound (a3) and formaldehyde with each other is preferable. It can be mentioned.
- the polymer (henceforth "the compound of a 1st aspect") containing the repeating unit represented by following formula (4) is mentioned suitably.
- the compound of the first aspect may contain a repeating unit other than the repeating unit represented by the formula (4).
- the compound of the first aspect includes a repeating unit represented by the above formula (4), a repeating unit represented by the following formula (10), a repeating unit represented by the following formula (11), and the following formula (12) And at least one repeating unit selected from the group consisting of repeating units represented by the following formula (13) and repeating units represented by the following formula (14): Is one of the preferred embodiments.
- the compound of the first aspect of the present invention may further contain a repeating unit other than the repeating unit represented by any of the above formulas (4) and (10) to (14).
- the method for producing the compound of the first aspect is not particularly limited, but the polymer may be obtained by reacting poly (p-vinylphenol), ⁇ - (phenylamino) propyltrimethoxysilane, 2-methylaminoethanol and formaldehyde.
- the method of obtaining is suitably mentioned.
- compound (C) examples include, for example, poly (p-vinylphenol), ⁇ - (phenylamino) propyltrimethoxysilane, ⁇ -aminopropyltriethoxysilane, N- (2-aminoethyl) -3 -Aminopropyltrimethoxysilane, ⁇ -aminopropylmethyldimethoxysilane, N-methyl-3-aminopropyltrimethoxysilane, N-cyclohexyl-3-aminopropyltrimethoxysilane, bis [3- (trimethoxysilyl) propyl] 2-methylaminoethanol, monoethanolamine, diethanolamine, 3-methylamino-1,2-propanediol, and at least one aminosilane selected from the group consisting of amines and N-allyl-3-aminopropyltrimethoxysilane , N-methyl glucan , N-methyl-1,3
- the method for producing the compound of the second aspect is not particularly limited, but the method for obtaining the compound of the second aspect by reacting the poly (p-vinylphenol), the aminosilane, the amine compound and the formaldehyde in a solvent Is preferably mentioned.
- the compound of the second aspect has a structure in which an amino group is bonded as a substituent to an aromatic ring possessed by poly p-vinylphenol via a methylene group derived from formaldehyde by the so-called Mannich reaction.
- the position of the substituent of the aromatic ring in the compound of the second aspect is not particularly limited, but it is preferable that the ortho position of the phenolic hydroxy group is substituted.
- the amount of aminosilane used in the reaction is preferably 1 to 1200 parts by mass, more preferably 2 to 600 parts by mass, and still more preferably 3 to 300 parts by mass with respect to 100 parts by mass of poly-p-vinylphenol.
- the amount of the amine compound used in the reaction is preferably 0.2 to 360 parts by mass, more preferably 0.4 to 270 parts by mass, and 0.6 to 180 parts by mass with respect to 100 parts by mass of poly p-vinylphenol. Parts are more preferred.
- the amount of formaldehyde used in the reaction is preferably 0.3 to 300 parts by mass, more preferably 0.6 to 200 parts by mass, and 0.9 to 150 parts by mass with respect to 100 parts by mass of poly (p-vinylphenol). More preferable.
- the solvent is not particularly limited as long as it does not participate in the reaction, but, for example, water; alcohol solvents such as methanol and ethanol; ether solvents such as tetrahydrofuran and 1,4-dioxane; halogen such as dichloromethane and chloroform System solvents; ketone solvents such as acetone; etc. may be mentioned.
- the amount of the solvent used is preferably 0 to 10,000 parts by mass, and more preferably 10 to 5,000 parts by mass with respect to 100 parts by mass of poly (p-vinylphenol).
- the reaction rate can be improved and the reaction time can be shortened by further adding a catalyst.
- a catalyst an acid catalyst, a base catalyst, a Lewis acid catalyst etc. are mentioned, for example.
- the acid catalyst include inorganic acids such as hydrochloric acid, hydrogen chloride gas, sulfuric acid, fuming sulfuric acid, nitric acid, concentrated nitric acid, phosphoric acid, etc .; p-toluenesulfonic acid, trifluoromethanesulfonic acid, formic acid, acetic acid Etc .; and the like.
- Specific examples of the base catalyst include sodium hydroxide, potassium hydroxide, sodium hydride, pyridine, triethylamine, lithium diisopropylamide and the like.
- Lewis acid catalyst examples include aluminum chloride, titanium chloride, lanthanum trifluoromethanesulfonate, scandium trifluoromethanesulfonate, and ytterbium trifluoromethanesulfonate.
- the addition amount of the catalyst is not particularly limited, but is preferably 1 to 300 parts by mass, and more preferably 2 to 150 parts by mass with respect to 100 parts by mass of poly (p-vinylphenol).
- the reaction temperature in the method for producing a compound of the second aspect is not particularly limited, but is preferably 0 to 150 ° C., and more preferably 20 to 100 ° C.
- the reaction time in the method for producing a compound of the second embodiment is not particularly limited, but for example, when the reaction temperature is 80 ° C., about 24 hours is preferable. When the reaction temperature is 23 ° C., about 7 days are preferable.
- the method for producing the compound of the second aspect is specifically described.
- the method for producing the compound of the second aspect of the present invention is not limited to this method.
- poly (p-vinylphenol) and the solvent are mixed and sufficiently dissolved.
- the amine compound, the aminosilane, formaldehyde and, if necessary, the catalyst are sequentially added dropwise to this mixture while stirring at room temperature. After heating this mixture to 80 ° C. and stirring for 24 hours, the compound of the present embodiment can be obtained.
- the order of adding the aminosilane, the amine compound, formaldehyde and the catalyst is not particularly limited, but it is preferable to add formaldehyde after adding the aminosilane and the amine compound.
- the catalyst is preferably added after the formaldehyde addition.
- the compound of the second aspect obtained by the above-mentioned method can be purified by known methods.
- it can be purified by precipitation with a solvent in which the compound of interest is not dissolved, evaporation under normal pressure or reduced pressure, or use of chromatography.
- the molecular weight or weight average molecular weight of the compound (C) is not particularly limited, but is preferably 200 to 1,000,000, more preferably 500 to 500,000, and 1,000 to 1,000 More preferably, it is 200,000.
- the method for producing the compound (C) is not particularly limited, and preferred examples thereof include the methods for producing the compounds of the first and second aspects in the second method described above.
- the content of the compound (C) in the surface treatment agent for metal materials is the ratio of the total mass of the chromium equivalent mass of the ion A to the metal equivalent mass of the ion B to the solid mass of the compound (C) [(A + B) / C In the range of 0.03 to 100, preferably in the range of 0.1 to 50, and more preferably in the range of 0.1 to 24. Particularly preferably, the ratio of the total mass [(A + B) / C] is in the range larger than 3. Within each range, more optimal coating performance can be obtained.
- the fluorine-containing compound (D) is not particularly limited as long as it is a compound capable of providing a fluorine-containing ion when mixed in an aqueous medium, and examples thereof include hydrofluoric acid and ammonium fluoride. And chromium fluoride, hexafluorotitanic acid, hexafluorotitanium complex salt, hexafluorozirconate, hexafluorozirconium complex salt, magnesium fluoride, aluminum fluoride, hexafluorosilicic acid, sodium fluoride, potassium fluoride and the like. it can. Although this fluorine-containing compound (D) may use only 1 type, 2 or more types may be used.
- the free fluorine ions may be provided by the source (A) and / or the source (B), in which case the source (A) and / or the source (B) is a fluorine-containing compound (D)
- the same compound as in it may be provided by the source (A) and / or the source (B), which is a compound different from the fluorine-containing compound (D). That is, part or all of the fluorine-containing compound (D) may be common to at least a part of the sources (A) and / or (B).
- the fluorine equivalent mass concentration of free fluorine ion in the surface treatment agent for metal materials is preferably 3 to 100 mg / L, and more preferably 5 to 70 mg / L.
- the free fluorine ion concentration is a value measured by the method described in Japanese Patent Publication No. 06-095086 (Japanese Patent Laid-Open No. 58-211644).
- the other component (E) is not particularly limited as long as the effect of the present invention is not impaired.
- vanadium, molybdenum, tungsten, manganese, cerium, magnesium, calcium, cobalt, nickel, strontium examples thereof include compounds containing metal elements such as lithium, niobium, yttrium and bismuth, and pH adjusters.
- these components may use only 1 type, 2 or more types may be used.
- the pH of the surface treatment agent for metal materials according to the present invention is not particularly limited, but is preferably 2.3 to 5.0, and more preferably 3.0 to 4.5.
- pH in this specification means the value in the temperature at the time of making the surface treatment agent for metal materials or the pickling process liquid mentioned later contact on the surface or surface of a metal material.
- the pH can be measured, for example, with a portable conductivity / pH meter ⁇ WM-32 EP (made by Toa DK Co., Ltd.) ⁇ or the like.
- the surface treatment agent for a metal material comprises an aqueous medium containing the aforementioned source of ion A (A), source of ion B (B), compound (C), and fluorine-containing compound (D). It can be obtained by mixing it in an appropriate amount and stirring.
- the solid source may be blended into the aqueous medium, or the solid source may be previously dissolved in the aqueous medium and then blended as an aqueous medium solution.
- pH adjusters such as nitric acid, hydrofluoric acid, ammonium hydrogencarbonate, or ammonia water
- aqueous medium for example, water or a mixture of water and a water-miscible organic solvent containing 50% by mass or more of water is used.
- the water-miscible organic solvent is not particularly limited as long as it is an organic solvent miscible with water, and examples thereof include alcohol solvents such as methanol and ethanol; ketone solvents such as acetone; N, N ' -Amide solvents such as dimethylformamide and dimethylacetamide; ether solvents such as ethylene glycol monobutyl ether and ethylene glycol monohexyl ether; and pyrrolidone solvents such as 1-methyl-2-pyrrolidone and 1-ethyl-2-pyrrolidone; Etc. can be mentioned.
- One of these water-miscible organic solvents may be mixed with water, or two or more thereof may be mixed with water.
- the manufacturing method of the metallic material which has a surface treatment film concerning this embodiment includes the contact process which contacts the surface treating agent for metallic materials concerning this embodiment on the surface or the surface of a metallic material. Thereby, a surface treatment film is formed on the surface or surface of the metal material.
- pretreatment processes such as a degreasing process and an acid wash process, before a contact process.
- a water washing process may be performed after each process, and a drying process may be performed after the water washing process.
- Degreasing process In the method for producing a metal material having a surface treatment film of the present embodiment, it is preferable to perform a degreasing step in which a known degreasing agent is brought into contact with the surface of the metal material or the surface before performing the contact step.
- the method of performing the degreasing step is not particularly limited, and examples thereof include solvent degreasing and alkaline degreasing.
- the method for producing a metal material having a surface treatment film of the present embodiment it is preferable to carry out an acid pickling step of bringing a specific pickling solution into contact with the surface or the surface of the metal material before performing the contact step.
- a specific pickling solution at least one selected from the group consisting of a fluorine-containing compound, a sulfuric acid compound, a nitric acid compound, a phosphoric acid compound, an oxycarboxylic acid compound, and a hydrogen peroxide compound is compounded as the above pickling solution.
- the fluorine-containing compound is the same compound as the above-mentioned fluorine-containing compound (D), preferably hydrofluoric acid and a water-soluble hydrofluoric acid salt can be mentioned, and more preferably fluorinated Hydrogen acid can be mentioned.
- the sulfuric acid compound is a compound capable of providing a sulfate ion in the pickling solution, and preferably includes sulfuric acid, sulfate, and sulfuric ester, and more preferably sulfuric acid.
- the nitric acid compound is capable of providing nitrate ions in the pickling solution, and examples thereof include nitric acid, nitrates and nitrate esters, and more preferably nitric acid.
- the phosphoric acid compound is capable of providing a phosphate ion in the pickling solution, and examples thereof include phosphoric acid, phosphoric acid salts and phosphoric acid esters, and more preferable examples include phosphoric acid.
- oxycarboxylic acid compounds include oxycarboxylic acids and oxycarboxylic acid salts, and more preferably oxycarboxylic acids.
- the hydrogen peroxide compound may, for example, be hydrogen peroxide or hydrogen peroxide salt, and more preferably hydrogen peroxide.
- the pH of the pickling solution is preferably 1 to 5 at 25 ° C.
- the method of performing the pickling step is not particularly limited, and examples thereof include an immersion method, a spray method, and a flow coating method.
- the concentration of the pickling solution and the contact time of the pickling solution with the metal material are not particularly limited, but the etching weight per unit area of the metal material by contact with the pickling solution is 0.1 to 10.0 gm. It is preferable to control to be in the range of 2. It is more preferable to control to be in the range of 0.1 to 5.0 g / m 2 .
- the contacting step in the method for producing a metal material having a surface treatment film using the surface treatment agent for a metal material of the present embodiment is carried out by using a surface treatment agent for a metal material at 10 to 70 ° C. This is a process of contacting for 600 seconds. After the step, if necessary, washing may be performed with water, deionized water, and then dried. The drying temperature is not particularly limited, but 50 to 140 ° C. is a preferable range.
- the method for bringing the surface treatment agent for metal material into contact with the surface or the surface of the metal material is not particularly limited, and examples thereof include an immersion method, a spray method, and a flow coating method.
- the metal material for which the surface treatment agent for a metal material according to the present invention is intended is not particularly limited, but aluminum, aluminum alloy, cold rolled steel plate, hot rolled steel plate, hot-dip galvanized steel plate, electrogalvanized steel plate, Examples thereof include melt-alloyed galvanized steel sheet, aluminum-plated steel sheet, aluminum-zinc alloyed coated steel sheet, stainless steel sheet, copper sheet, titanium sheet, magnesium sheet, nickel sheet, etc., among which aluminum and aluminum alloys, particularly, surface Is effective for an aluminum die-cast material in which the oxide film is thick and various alloy components are segregated on the surface.
- the adhesion amount of the surface treatment film in the metal material having a surface treatment film produced by the method for producing a metal material having a surface treatment film according to the present invention is 1 to 100 mg / M equivalent carbon mass (M) per unit area
- the total mass (N) of m 2 , Cr, Ti and Zr per unit area is preferably 1 to 200 mg / m 2 .
- the metal material having the surface treatment film of the present embodiment has excellent corrosion resistance even without performing the coating step of coating on the surface treatment film, but the coating step may be performed.
- the said coating process is not specifically limited, For example, it carries out by coating methods, such as water-based coating, solvent coating, powder coating, anion electrodeposition coating, cationic electrodeposition coating, using a well-known coating composition. Can.
- each component used for preparation of surface treatment agent for metal materials As shown in Table 2, the raw materials A1 to A3 as the source of ion A (A), the raw materials B1 and B2 as the source of ion B (B), the raw material D1 as the fluorine-containing compound (D), and the raw material as component (E) E1 to E4 were used.
- the compounding quantity of the supply source (A) shown to the table is a chromium conversion mass concentration
- the compounding quantity of the supply source (B) shown to the table is a metal conversion mass concentration
- the compounding amount of E) is a metal conversion mass concentration
- the free fluorine ion concentration shown in the table is a fluorine conversion mass concentration.
- the measurement of the free fluorine ion concentration is as follows.
- the pH of each treatment solution is shown in Table 3.
- the free fluorine ion concentration was measured using a commercially available fluorine ion meter ⁇ ion electrode: fluoride ion composite electrode F-2021 (manufactured by Toa DK Co., Ltd.) ⁇ .
- a metal material having a surface treatment film is produced using the surface treatment agent according to Examples 1 to 20 and Comparative Examples 1 to 8 using the following metal materials, Production Examples 1 to 25, Production Comparative Example It was 1 to 8.
- the treatment method and treatment conditions are as follows.
- the total mass and carbon equivalent mass per unit area of the metal are as follows. It measured by the method. The measurement results are shown in Table 4. In Table 4, (N) is the total mass of Cr, Ti and Zr, and (M) is the carbon equivalent mass.
- ⁇ Degreasing agent> A 20 g / L aqueous solution of an alkaline degreaser ⁇ Fine Cleaner 315E (manufactured by Nihon Parkerizing Co., Ltd.) ⁇ was used.
- ⁇ Pickling solution> A pickling solution (mixed liquid) having a sulfuric acid mass concentration of 5 g / L and a hydrofluoric acid mass concentration of 1 g / L was used.
- Carbon converted mass per unit area The carbon equivalent mass per unit area was measured using a total organic carbon meter ⁇ TOC-L (manufactured by Shimadzu Corporation) ⁇ .
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Abstract
Description
(1)金属材料を表面処理するための表面処理剤であって、少なくとも1種の、3価クロムを含有するイオンAの供給源(A)と、チタンを含有するイオンおよびジルコニウムを含有するイオンからなる群より選択される少なくとも1種であるイオンBの供給源(B)と、アルコキシシリル基と、芳香環と、前記芳香環に直接結合しているヒドロキシ基と、第一級アミノ基、第二級アミノ基、第三級アミノ基および第四級アンモニウム基からなる群から選ばれる少なくとも1つのアミノ基とを有し、前記アルコキシシリル基が前記アミノ基の窒素原子に直接またはアルキレン基を介して結合している水溶性又は水分散性の化合物(C)と、フッ素を含有するイオンを提供するフッ素含有化合物(D)とを配合し、前記表面処理剤は遊離フッ素イオンを含む、金属材料用表面処理剤;
(2)上記(1)に記載の金属材料用表面処理剤において、前記化合物(C)の固形分質量に対する前記イオンAのクロム換算質量と前記イオンBの金属換算質量との合計質量の比[(A+B)/C]が0.03~100の範囲内である、金属材料用表面処理剤;
(3)上記(1)又は(2)に記載の金属材料用表面処理剤を金属材料の表面又は表面上に接触させる接触工程を含む、表面処理皮膜を有する金属材料の製造方法;
(4)上記(3)に記載の表面処理皮膜を有する金属材料の製造方法において、前記接触工程前に、フッ素含有化合物、硫酸化合物、硝酸化合物、リン酸化合物、オキシカルボン酸化合物及び過酸化水素化合物からなる群より選択される少なくとも1種を配合した酸洗処理液で金属材料を酸洗する酸洗工程を更に含む、表面処理皮膜を有する金属材料の製造方法;
(5)上記(1)又は(2)に記載の金属材料用表面処理剤を金属材料の表面又は表面上に接触させることにより形成された表面処理皮膜を有する金属材料;などである。
≪金属材料用表面処理剤≫
本実施形態に係る表面処理剤は、金属材料を表面処理するための薬剤である。当該表面処理剤は、化成処理剤として利用することもできる。当該表面処理剤は、少なくとも1種の、3価クロムを含有するイオンAを提供する供給源(A)と、チタンを含有するイオンおよびジルコニウムを含有するイオンからなる群より選択される少なくとも1種のイオンBを提供する供給源(B)と、アルコキシシリル基と、芳香環と、前記芳香環に直接結合しているヒドロキシ基と、第一級アミノ基、第二級アミノ基、第三級アミノ基および第四級アンモニウム基からなる群から選ばれる少なくとも1つのアミノ基とを有し、前記アルコキシシリル基が前記アミノ基の窒素原子に直接またはアルキレン基を介して結合している水溶性又は水分散性の化合物(C)と、フッ素を含有するイオンを提供するフッ素含有化合物(D)とを配合したものであり、この結果、遊離フッ素イオンを含むものである。金属材料用表面処理剤は、これらの成分のみを水性媒体に配合したものであってもよいが、その他の成分を配合したものであってもよい。以下、各成分、組成(配合量、配合比)及び液性を詳述する。なお、前記金属を含有するイオンとしては、金属イオン、酸化物イオン、水酸化物イオン、錯イオン等を挙げることができる。なお、6価クロムを含んでも、含まなくてもよいが、環境への影響を考慮すると、6価クロムを実質的に含まない形態が好ましい。
金属材料用表面処理剤における供給源(A)は、水性媒体に混合させることによりイオンAを提供できるものであれば、特に制限されるものではない。供給源(A)としては、例えば、フッ化クロム(III)、硝酸クロム(III)、硫酸クロム(III)、リン酸クロム(III)等が挙げられる。これらの供給源(A)は、1種のみを用いてもよいが、2種以上を用いてもよい。金属材料用表面処理剤におけるイオンAの含有量は特に限定されないが、クロム換算質量濃度で通常10~500mg/Lの範囲内であり、好適には25~300mg/Lの範囲内である。
金属材料用表面処理剤における供給源(B)は、水性媒体に混合させることによりイオンBを提供できるものであれば、特に制限されるものではない。供給源(B)としては、例えば、硫酸チタン、オキシ硫酸チタン、硫酸チタンアンモニウム、硝酸チタン、オキシ硝酸チタン、硝酸チタンアンモニウム、ヘキサフルオロチタン酸、ヘキサフルオロチタン錯塩、硫酸ジルコニウム、オキシ硫酸ジルコニウム、硫酸ジルコニウムアンモニウム、硝酸ジルコニウム、オキシ硝酸ジルコニウム、硝酸ジルコニウムアンモニウム、ヘキサフルオロジルコニウム酸、ヘキサフルオロジルコニウム錯塩、チタンラクテート、チタンアセチルアセトネート、チタントリエタノールアミネート、チタンオクチルグリコレート、テトライソプロピルチタネート、テトラノルマルブチルチタネート、酢酸ジルコニル、乳酸ジルコニル、ジルコニウムテトラアセチルアセトネート、ジルコニウムトリブトキシアセチルアセトネート、テトラノルマルブトキシジルコニウム、テトラノルマルプロポキシジルコニウム等が挙げられる。これらの供給源Bは、1種のみを用いてもよいが、2種以上を用いてもよい。金属材料用表面処理剤におけるイオンBの含有量は特に限定されないが、金属換算質量濃度(2種以上の供給源を混合させた場合には、合計の金属換算質量濃度)で通常10~500mg/Lの範囲内であり、好適には25~300mg/Lの範囲内である。
金属材料用表面処理剤における化合物(C)は、アルコキシシリル基と、芳香環と、前記芳香環に直接結合しているヒドロキシ基と、第一級アミノ基、第二級アミノ基、第三級アミノ基および第四級アンモニウム基からなる群から選ばれる少なくとも1つのアミノ基とを有し、前記アルコキシシリル基が前記アミノ基の窒素原子に直接またはアルキレン基を介して結合している水溶性又は水分散性の化合物である。化合物(C)は、単量体であってもよく、単重合体であってもよく、共重合体であってもよい。
前記ルイス酸触媒としては、具体的には、例えば、塩化アルミニウム、塩化チタン、トリフルオロメタンスルホン酸ランタニウム、トリフルオロメタンスルホン酸スカンジウム、トリフルオロメタンスルホン酸イットリビウム等が挙げられる。
フッ素含有化合物(D)としては、水性媒体に混合させた際にフッ素を含有するイオンを提供することができる化合物であれば特に制限されるものではなく、例えば、フッ化水素酸、フッ化アンモニウム、フッ化クロム、ヘキサフルオロチタン酸、ヘキサフルオロチタン錯塩、ヘキサフルオロジルコニウム酸、ヘキサフルオロジルコニウム錯塩、フッ化マグネシウム、フッ化アルミニウム、ヘキサフルオロケイ酸、フッ化ナトリウム、フッ化カリウムなどを挙げることができる。このフッ素含有化合物(D)は、1種のみを用いてもよいが、2種以上を用いてもよい。
他の成分(E)は、本発明の効果を損なわない範囲内であれば特に制限されるものではなく、例えば、バナジウム、モリブデン、タングステン、マンガン、セリウム、マグネシウム、カルシウム、コバルト、ニッケル、ストロンチウム、リチウム、ニオブ、イットリウム、ビスマス等の金属元素を含む化合物や、pH調整剤等が挙げられる。これらの成分は1種のみを用いてもよいが、2種以上を用いてもよい。
また、金属材料用表面処理剤との接触時に、金属材料のエッチングにより生じる鉄、アルミニウム等の金属材料由来成分を意図的に配合してもよい。
本発明に係る金属材料用表面処理剤は、前述したイオンAの供給源(A)と、イオンBの供給源(B)と、化合物(C)と、フッ素含有化合物(D)とを水性媒体に適量配合して撹拌することにより得ることができる。尚、製造に際しては、固体の供給源を水性媒体に配合してもよく、当該固体の供給源を予め水性媒体に溶解させた後に水性媒体溶液として配合してもよい。また、金属材料用表面処理剤のpHは、硝酸、フッ化水素酸、炭酸水素アンモニウム、又はアンモニア水等のpH調整剤を用いて調整することが好ましいが、これらの成分に限定されるものではない。なお、pH調整剤は、1種又は2種以上を用いてもよい。
本実施形態に係る表面処理皮膜を有する金属材料の製造方法は、金属材料の表面又は表面上に本実施形態に係る金属材料用表面処理剤を接触させる接触工程を含む。これにより、金属材料の表面又は表面上に、表面処理皮膜が形成される。また、接触工程の前に脱脂工程や酸洗工程等の前処理工程を行ってもよい。なお、各工程の後に水洗工程を行ってもよいし、水洗工程の後に乾燥工程を行ってもよい。
本実施形態の表面処理皮膜を有する金属材料の製造方法において、接触工程を行う前に、金属材料の表面又は表面上に公知の脱脂剤を接触させる脱脂工程を行うことが好ましい。脱脂工程を行う方法としては、特に限定されないが、例えば、溶剤脱脂、アルカリ脱脂等が挙げられる。
本実施形態の表面処理皮膜を有する金属材料の製造方法において、接触工程を行う前に、金属材料の表面又は表面上に特定の酸洗処理液を接触させる酸洗工程を行うことが好ましい。具体的には、上記の酸洗処理液として、フッ素含有化合物、硫酸化合物、硝酸化合物、リン酸化合物、オキシカルボン酸化合物及び過酸化水素化合物からなる群より選択される少なくとも1種を配合してなる酸洗処理液を用いることが好適であり、(α)硫酸化合物、硝酸化合物、リン酸化合物、オキシカルボン酸化合物及び/又は過酸化水素化合物と、(β)フッ素含有化合物と、の組み合わせがより好適である。ここで、フッ素含有化合物は、上述したフッ素含有化合物(D)と同じ化合物であり、好適にはフッ化水素酸及び水溶性フッ化水素酸塩を挙げることができ、さらに好適には、フッ化水素酸を挙げることができる。硫酸化合物は、酸洗処理液中に硫酸イオンを提供できる化合物であり、好適には、硫酸、硫酸塩、硫酸エステルを挙げることができ、さらに好適には、硫酸を挙げることができる。硝酸化合物は、酸洗処理液中に硝酸イオンを提供できるものであり、硝酸、硝酸塩、硝酸エステルを挙げることができ、さらに好適には硝酸を挙げることができる。リン酸化合物は、酸洗処理液中にリン酸イオンを提供できるものであり、リン酸、リン酸塩、リン酸エステルを挙げることができ、さらに好適にはリン酸を挙げることができる。オキシカルボン酸化合物は、オキシカルボン酸、オキシカルボン酸塩を挙げることができ、さらに好適にはオキシカルボン酸を挙げることができる。過酸化水素化合物としては、過酸化水素、過酸化水素塩などを挙げることができ、さらに好適には、過酸化水素を挙げることができる。また、酸洗処理液のpHは、好適には25℃における値で1~5である。
本実施形態の金属材料用表面処理剤を用いた表面処理皮膜を有する金属材料の製造方法における接触工程は、金属材料用表面処理剤を金属材料の表面又は表面上に40~70℃で10~600秒間接触させる工程である。尚、当該工程後、必要に応じて、水洗し、脱イオン水洗を行い、その後に乾燥させてもよい。乾燥温度は特に制限はないが、50~140℃が好ましい範囲である。尚、金属材料用表面処理剤を金属材料の表面又は表面上に接触させる方法としては、特に限定されないが、例えば、浸漬法、スプレー法、フローコート法等を挙げることができる。
本発明に係る金属材料用表面処理剤が対象とする金属材料は、特に限定されるものではないが、アルミニウム、アルミニウム合金、冷延鋼板、熱延鋼板、溶融亜鉛めっき鋼板、電気亜鉛めっき鋼板、溶融合金化亜鉛めっき鋼板、アルミニウムめっき鋼板、アルミニウム-亜鉛合金化めっき鋼板、ステンレス鋼板、銅板、チタン板、マグネシウム板、ニッケル板等を挙げることができ、この中でも、アルミニウム及びアルミニウム合金、特に、表面の酸化膜が厚く、表面に多種の合金成分が偏析しているアルミニウムダイキャスト材に対して有効である。
本発明に係る表面処理皮膜を有する金属材料の製造方法により製造された、表面処理皮膜を有する金属材料における表面処理皮膜の付着量は、単位面積当たりの炭素換算質量(M)が1~100mg/m2、単位面積当たりのCr、Ti及びZrの合計質量(N)が1~200mg/m2であることが好適である。
本実施形態の表面処理皮膜を有する金属材料は、特に、表面処理皮膜の上に塗装する塗装工程を行わなくとも優れた耐食性を有するが、塗装工程を行ってもよい。
ここで、前記塗装工程は、特に限定されないが、例えば、公知の塗料組成物を用いて、水系塗装、溶剤塗装、粉体塗装、アニオン電着塗装、カチオン電着塗装などの塗装方法により行うことができる。
<化合物(C)の合成>
攪拌機のついた反応装置(1Lセパラブルフラスコ)に、下記表1に示す量の芳香族化合物(a1)と溶媒とを入れ、十分に溶解させた。この混合液に下記表1に示す量のアミン化合物(a3)、アミノシラン(a2)、37質量%ホルムアルデヒド水溶液、触媒を室温にて順次滴下して加えた後、80℃にて48時間攪拌した。その後、水を加え重合体成分のみを沈殿ろ過して精製を行い、前記化合物(C)に相当する各化合物C1~C3を得た。なお、表1に示すC4~C6は、本発明の金属材料用表面処理剤における化合物(C)には該当しない化合物である。
a1:ポリp-ビニルフェノール(マルカリンカー、丸善石油化学)
a2:γ-(フェニルアミノ)プロピルトリメトキシシラン
a3:2-メチルアミノエタノール
a4:エタノール
a5:酢酸
表2に示すとおり、イオンAの供給源(A)として原料A1~A3、イオンBの供給源(B)として原料B1、B2、フッ素含有化合物(D)として原料D1、成分(E)として原料E1~E4を用いた。
表1~2に示した原料を用い且つ表3に示した濃度となるよう、各原料を水に配合して混合し、実施例1~20及び比較例1~8に係る金属材料用表面処理剤を得た。
遊離フッ素イオン濃度は、市販のフッ素イオンメーター{イオン電極:フッ化物イオン複合電極F-2021(東亜ディーケーケー株式会社製)}を用いて測定した。
実施例1~20及び比較例1~8に係る金属材料用表面処理剤を用い、以下の金属材料を用いて表面処理皮膜を有する金属材料を製造し、製造実施例1~25、製造比較例1~8とした。
アルミニウムダイキャスト材(JIS-ADC12)
アルカリ脱脂剤{ファインクリーナー315E(日本パーカライジング株式会社製)}の20g/L水溶液を使用した。
硫酸の質量濃度が5g/L、フッ化水素酸の質量濃度が1g/Lである酸洗処理液(混合液)を使用した。
<単位面積当たりの金属の質量>
単位面積当たりの金属の質量(Cr、Ti、Zr)は、走査型蛍光X線分析装置{ZSXprimus II(株式会社リガク製)}を用いて測定した。
単位面積当たりの炭素換算質量は、全有機炭素計{TOC-L(株式会社島津製作所製)}を用いて測定した。
上記脱脂剤中に上記金属材料を60℃で2分間浸漬し、次いで水道水にて表面をすすぎ清浄化した。次に、酸洗工程を行う実施例に関しては、上記酸洗処理液に当該金属材料を常温にて2分間浸漬し、次いで水道水にて表面をすすぎ清浄化した。その後、実施例及び比較例に係る金属材料用表面処理剤を当該金属材料の表面又は表面上に、表4に示す接触温度で、一定の接触時間にてスプレーすることにより、接触工程を行った。その後、水道水にて流水洗(常温で30秒間)し、脱イオン水にて水洗(常温で30秒間)した後に電気オーブンにて乾燥(80℃で5分間)し、表面処理皮膜を有する金属材料を製造した。
<耐食性(未塗装仕様)>
上記表面処理皮膜を有する金属材料に中性塩水噴霧試験(JIS-Z2371:2015)を240時間行った。乾燥後、金属材料の表面に発生した白錆の割合を目視で測定した。白錆の割合は、観察部位の面積に対する白錆が発生した面積の割合である。評価基準は以下のとおりである。評価結果を表5に示す。
<評価基準>
5 白錆の割合 10%以下
4 白錆の割合 10%超~30%以下
3 白錆の割合 30%超~50%以下
2 白錆の割合 50%超~70%以下
1 白錆の割合 70%超
上記表面処理皮膜を有する金属材料の表面上に、溶剤系塗料(アミノアルキド系)を乾燥後の塗膜厚が20μmとなるように塗布して塗膜を形成し、塗装材を作製した。その後、塗装材の塗膜面に、アクリルカッターを用いて、金属素地に達するように交差する2本の対角線を引いた。該塗装材に中性塩水噴霧試験(JIS-Z2371:2015)を480時間行った。乾燥後、テープ剥離を行い、カット部における塗膜の片側最大剥離幅を測定した。評価基準は以下のとおりである。評価結果を表5に示す。
<評価基準>
5 剥離幅 0.5mm以下
4 剥離幅 0.5超~1.0mm以下
3 剥離幅 1.0超~2.0mm以下
2 剥離幅 2.0超~3.0mm以下
1 剥離幅 3.0mm超
Claims (5)
- 金属材料を表面処理するための表面処理剤であって、少なくとも1種の、3価クロムを含有するイオンAの供給源(A)と、チタンを含有するイオンおよびジルコニウムを含有するイオンからなる群より選択される少なくとも1種であるイオンBの供給源(B)と、アルコキシシリル基と、芳香環と、前記芳香環に直接結合しているヒドロキシ基と、第一級アミノ基、第二級アミノ基、第三級アミノ基および第四級アンモニウム基からなる群から選ばれる少なくとも1つのアミノ基とを有し、前記アルコキシシリル基が前記アミノ基の窒素原子に直接またはアルキレン基を介して結合している水溶性又は水分散性の化合物(C)と、フッ素を含有するイオンを提供することができるフッ素含有化合物(D)とを配合し、前記表面処理剤は遊離フッ素イオンを含む、金属材料用表面処理剤。
- 請求項1に記載の金属材料用表面処理剤において、前記化合物(C)の固形分質量に対する前記イオンAのクロム換算質量と前記イオンBの金属換算質量との合計質量の比[(A+B)/C]が0.03~100の範囲内である、金属材料用表面処理剤。
- 請求項1又は2に記載の金属材料用表面処理剤を金属材料の表面又は表面上に接触させる接触工程を含む、表面処理皮膜を有する金属材料の製造方法。
- 請求項3に記載の表面処理皮膜を有する金属材料の製造方法において、前記接触工程前に、フッ素含有化合物、硫酸化合物、硝酸化合物、リン酸化合物、オキシカルボン酸化合物及び過酸化水素化合物からなる群より選択される少なくとも1種を配合した酸洗処理液で金属材料を酸洗する酸洗工程を更に含む、表面処理皮膜を有する金属材料の製造方法。
- 請求項1又は2に記載の金属材料用表面処理剤を金属材料の表面又は表面上に接触させることにより形成された表面処理皮膜を有する金属材料。
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211642043.0A CN115992351A (zh) | 2017-12-27 | 2018-12-20 | 金属材料用表面处理剂以及具有表面处理皮膜的金属材料及其制造方法 |
| MX2020006742A MX2020006742A (es) | 2017-12-27 | 2018-12-20 | Agente de tratamiento de superficie de material metalico, material metalico que tiene recubrimiento de tratamiento de superficie, y metodo de manufactura para el mismo. |
| PH1/2020/550984A PH12020550984B1 (en) | 2017-12-27 | 2018-12-20 | Metallic material surface treatment agent, metallic material having surface treatment coating, and manufacturing method therefor |
| US16/958,187 US11603592B2 (en) | 2017-12-27 | 2018-12-20 | Metallic material surface treatment agent, metallic material having surface treatment coating, and manufacturing method therefor |
| EP18893367.5A EP3733929B1 (en) | 2017-12-27 | 2018-12-20 | Metallic material surface treatment agent, and method of manufacturing a metallic material having a surface treatment coating |
| JP2019561609A JP6873274B2 (ja) | 2017-12-27 | 2018-12-20 | 金属材料用表面処理剤、並びに表面処理皮膜を有する金属材料及びその製造方法 |
| KR1020207019067A KR102525723B1 (ko) | 2017-12-27 | 2018-12-20 | 금속 재료용 표면 처리제, 그리고 표면 처리 피막을 갖는 금속 재료 및 그 제조 방법 |
| CN201880084076.3A CN111511963A (zh) | 2017-12-27 | 2018-12-20 | 金属材料用表面处理剂以及具有表面处理皮膜的金属材料及其制造方法 |
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| CN (2) | CN111511963A (ja) |
| MX (1) | MX2020006742A (ja) |
| PH (1) | PH12020550984B1 (ja) |
| TW (1) | TWI832833B (ja) |
| WO (1) | WO2019131436A1 (ja) |
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| CN114038736B (zh) * | 2021-11-10 | 2022-06-21 | 重庆臻宝实业有限公司 | 用于半导体材料的清洗方法 |
| WO2024018723A1 (ja) * | 2022-07-19 | 2024-01-25 | Jfeスチール株式会社 | 表面処理鋼板およびその製造方法 |
| CN116285573A (zh) * | 2023-02-27 | 2023-06-23 | 山东建筑大学 | 一种可带锈涂覆的水性环氧富锌防腐涂料及其配制方法 |
| KR102872991B1 (ko) * | 2023-11-28 | 2025-10-17 | 주식회사 케미피아 | 내전해액성이 우수한 셀 파우치 코팅층, 이를 포함하는 셀 파우치 및 이의 형성방법 |
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- 2018-12-20 MX MX2020006742A patent/MX2020006742A/es unknown
- 2018-12-20 KR KR1020207019067A patent/KR102525723B1/ko active Active
- 2018-12-20 PH PH1/2020/550984A patent/PH12020550984B1/en unknown
- 2018-12-20 EP EP18893367.5A patent/EP3733929B1/en active Active
- 2018-12-20 CN CN201880084076.3A patent/CN111511963A/zh active Pending
- 2018-12-20 JP JP2019561609A patent/JP6873274B2/ja active Active
- 2018-12-20 CN CN202211642043.0A patent/CN115992351A/zh active Pending
- 2018-12-24 TW TW107146779A patent/TWI832833B/zh active
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Also Published As
| Publication number | Publication date |
|---|---|
| EP3733929B1 (en) | 2024-12-04 |
| PH12020550984A1 (en) | 2021-04-26 |
| JP6873274B2 (ja) | 2021-05-19 |
| TW201928116A (zh) | 2019-07-16 |
| CN115992351A (zh) | 2023-04-21 |
| TWI832833B (zh) | 2024-02-21 |
| KR20200094776A (ko) | 2020-08-07 |
| US20200362461A1 (en) | 2020-11-19 |
| KR102525723B1 (ko) | 2023-04-26 |
| EP3733929A4 (en) | 2021-11-03 |
| JPWO2019131436A1 (ja) | 2020-12-10 |
| CN111511963A (zh) | 2020-08-07 |
| US11603592B2 (en) | 2023-03-14 |
| EP3733929A1 (en) | 2020-11-04 |
| PH12020550984B1 (en) | 2022-08-03 |
| MX2020006742A (es) | 2020-08-24 |
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