JP6919074B2 - Composite laminates and metal-modified polyphenylene ether conjugates - Google Patents

Description

The present invention relates to a composite laminate capable of bonding a metal and a modified polyphenylene ether with high strength and a method for producing the same, and a metal-modified polyphenylene ether conjugate using the composite laminate and a method for producing the same.

In the fields of automobile parts, OA equipment, etc., where weight reduction of products is required, there is an increasing demand for metal-resin joints in which a metal material such as aluminum and a resin are joined and integrated.

A method of using a surface-treated metal (Patent Documents 1 to 3 and the like) and a method of using an acid-modified resin (Patent Documents 4 to 4) in order to increase the bonding strength between the metal and the resin in the metal-resin bonded body. 7 etc.) is known. Patent Documents 4 to 7 disclose a technique for increasing the bonding strength between a metal and a resin in a metal-resin bonding body by subjecting polyolefin, which is a non-polar resin, to acid modification.

Japanese Unexamined Patent Publication No. 2012-415579 Japanese Unexamined Patent Publication No. 2016-16584 Japanese Patent No. 4541153 Japanese Unexamined Patent Publication No. 2016-16584 WO2016 / 199339 WO2016 / 152118 JP-A-2018-154834

In recent years, there has been a demand for a metal-modified polyphenylene ether conjugate using a modified polyphenylene ether, which is a resin having excellent mechanical and electrical properties, as a resin for a metal-resin conjugate. However, a metal-modified polyphenylene ether conjugate having sufficient bonding strength for applications such as automobile parts and OA equipment has not been realized.

The present invention has been made in view of such a technical background, and an object of the present invention is to provide a composite laminate suitable for use in bonding a metal and a modified polyphenylene ether with high strength and a related technique thereof. The related technology means a method for producing the composite laminate, a metal-modified polyphenylene ether conjugate using the composite laminate, and a method for producing the same.

The present invention provides the following means for achieving the above object.
In this specification, bonding means connecting objects to each other, and adhesion is a subordinate concept thereof, and organic materials such as tapes and adhesives (thermosetting resins, thermoplastic resins, etc.) are used. ) Means that the two adherends (those to be bonded) are put into a bonded state.

[1] A composite laminate having a metal material and a resin coating layer composed of one or a plurality of resin layers laminated on the metal material, and at least one layer of the resin layer is remodified-modified. A remodified-modified polyphenylene ether layer formed from a resin composition containing a polyphenylene ether, and the remodified-modified polyphenylene ether layer is a layer containing a mixture 1 which is a mixture of a modified polyphenylene ether and a thermoplastic epoxy resin. , And a layer containing the mixture 2 which is a mixture of the modified polyphenylene ether and the (meth) acrylic resin, which is a composite laminate.
[2] The composite laminate according to [1], wherein the mixture 1 is formed by subjecting a bifunctional epoxy resin and a bifunctional phenol compound to a double addition reaction in a solution containing a modified polyphenylene ether.
[3] The composite laminate according to [1], wherein the mixture 1 is a mixture of a modified polyphenylene ether and a thermoplastic epoxy resin.
[4] The composite laminate according to [1], wherein the mixture 2 is formed by radical polymerization of a (meth) acrylate monomer in a solution containing a modified polyphenylene ether.
[5] The composite laminate according to [1], wherein the mixture 2 is a mixture of a modified polyphenylene ether and a (meth) acrylic resin.
[6] The resin coating layer is further thermally cured by being formed of a thermoplastic epoxy resin layer formed of a resin composition containing a thermoplastic epoxy resin and a cured product of a resin composition containing a thermosetting resin. The composite laminate according to any one of [1] to [5], which comprises at least one resin layer selected from the sex resin layers.
[7] The composite laminate according to [6], wherein the thermosetting resin is at least one selected from the group consisting of urethane resin, epoxy resin, vinyl ester resin and unsaturated polyester resin.
[8] A functional group-containing layer laminated in contact with the metal material and the resin coating layer is provided between the metal material and the resin coating layer, and the functional group-containing layer is described in (1) to (1) to the following. The composite laminate according to any one of [1] to [7], which contains at least one functional group selected from the group consisting of (7).
(1) At least one functional group derived from a silane coupling agent and selected from the group consisting of an epoxy group, an amino group (meth) acryloyl group, and a mercapto group. (2) An amino group derived from a silane coupling agent , A functional group obtained by reacting at least one selected from an epoxy compound and a thiol compound (3) An epoxy compound, an amino compound, an isocyanate compound, a (meth) acryloyl group and an epoxy group are added to a mercapto group derived from a silane coupling agent. A functional group obtained by reacting at least one selected from the group consisting of a compound having a compound and a compound having a (meth) acryloyl group and an amino group. (4) A thiol compound is added to a (meth) acryloyl group derived from a silane coupling agent. Reacting functional group (5) An epoxy group derived from a silane coupling agent is reacted with at least one selected from the group consisting of a compound having an amino group and a (meth) acryloyl group, an amino compound, and a thiol compound. (6) Isocyanato group derived from isocyanate compound (7) Mercapto group derived from thiol compound
[9] Any one of [1] to [8], wherein the surface of the metal material is subjected to at least one pretreatment selected from the group consisting of blasting treatment, polishing treatment, etching treatment and chemical conversion treatment. The composite laminate according to.
[10] The composite laminate according to any one of [1] to [8], wherein the metal material is aluminum. [11] The composite laminate according to [9], wherein the metal material is aluminum.
[12] The composite laminate according to [11], wherein the pretreatment is at least one selected from an etching treatment and a bemit treatment.
[13] The composite laminate according to any one of [1] to [9], wherein the metal material comprises at least one selected from the group consisting of iron, titanium, magnesium, stainless steel and copper.

[14] The method for producing a composite laminate according to any one of [1] to [13], at least one selected from the group consisting of the following (1') to (7') on the surface of the metal material. A method for producing a composite laminate, which is subjected to seed treatment to form the functional group-containing layer.
(1') Treatment with a silane coupling agent having at least one functional group selected from the group consisting of an epoxy group, an amino group, a (meth) acryloyl group and a mercapto group (2') A silane coupling agent having an amino group Treatment to add at least one selected from epoxy compounds and thiol compounds after treatment with (3') After treatment with a silane coupling agent having a mercapto group, epoxy compounds, amino compounds, isocyanate compounds, (meth) acryloyl Treatment to add at least one selected from the group consisting of compounds having a group and an epoxy group, and a compound having a (meth) acryloyl group and an amino group (4') In a silane coupling agent having a (meth) acryloyl group. Treatment to add a thiol compound after treatment (5') After treatment with a silane coupling agent having an epoxy group, it is selected from the group consisting of compounds having amino groups and (meth) acryloyl groups, amino compounds, and thiol compounds. Treatment to add at least one (6') Treatment with isocyanate compound (7') Treatment with thiol compound
[15]
The composite laminate according to [14], wherein the metal material is subjected to at least one pretreatment selected from the group consisting of a blast treatment, a polishing treatment, an etching treatment and a chemical conversion treatment before forming the functional group-containing layer. How to make a body.

[16] A metal-modified polyphenylene ether conjugate in which the surface of the composite laminate according to any one of [1] to [13] on the resin coating layer side and the modified polyphenylene ether are joined and integrated.

[17] The method for producing a metal-modified polyphenylene ether conjugate according to [16], wherein the modified polyphenylene ether is injection-molded or press-molded on the surface on the resin coating layer side to obtain the modified polyphenylene ether. A method for producing a metal-modified polyphenylene ether conjugate.

INDUSTRIAL APPLICABILITY According to the present invention, it is possible to provide a composite laminate suitable for an application of bonding a metal and a modified polyphenylene ether with high strength and a related technique thereof.

It is explanatory drawing which shows the structure of the composite laminated body in one Embodiment. It is explanatory drawing which shows the structure of the composite laminated body in another embodiment. It is explanatory drawing which shows the structure of the metal-modified polyphenylene ether conjugate in one embodiment. It is an SEM photograph of a boehmite film.

The composite laminate and related techniques thereof in one embodiment of the present invention will be described in detail.
In addition, in this specification, the term "(meth) acryloyl group" means an acryloyl group and / or a methacryloyl group. Similarly, "(meth) acrylic" means acrylic and / or methacrylic, and "(meth) acrylate" means acrylate and / or methacrylate.

[Composite laminate]
As shown in FIG. 1, the composite laminate 1 of the present embodiment is a composite laminate having a metal material 2 and a resin coating layer 3 composed of one or a plurality of resin layers laminated on the metal material. be. At least one layer of the resin coating layer 3 is a re-denatured-modified polyphenylene ether layer 31 formed from a resin composition containing a re-modified-modified polyphenylene ether.

<Metal material 2>
The metal type of the metal material 2 is not particularly limited. Examples of the metal type include aluminum, iron, titanium, magnesium, stainless steel, copper and the like. Of these, aluminum is particularly preferably used from the viewpoint of light weight and ease of processing.

Before laminating the resin coating layer 3 on the metal material 2, it is preferable to perform a pretreatment on the surface of the metal material.

Examples of the pretreatment include cleaning with a solvent, degreasing treatment, blasting treatment, polishing treatment, plasma treatment, laser treatment, etching treatment, chemical conversion treatment and the like, and pretreatment for generating hydroxyl groups on the surface of a metal material is preferable. These pretreatments may be performed with only one type or two or more types. As a specific method of these pretreatments, a known method can be used.
These pretreatments are intended to remove contaminants on the surface of the metal material 2 and / or to form fine irregularities 21 on the surface of the metal material 2 to roughen the surface for the purpose of an anchor effect. As a result, the adhesiveness between the surface of the metal material 2 and the resin coating layer 3 can be improved, and also contributes to the improvement of the bondability of various materials (metal materials, organic materials, etc.) to the bonding target. obtain.

Therefore, when the composite laminate 1 is manufactured, the contaminants on the surface of the metal material 2 are removed before the resin coating layer 3 is formed, and the surface of the metal material 2 has fine irregularities 21 for the purpose of an anchor effect. It is preferable to perform at least one pretreatment selected from the group consisting of a blasting treatment, a polishing treatment, an etching treatment and a chemical conversion treatment, in particular, a treatment for forming and roughening the surface.

Examples of the cleaning and / or degreasing treatment with the solvent or the like include treatments such as degreasing the surface of the metal material 2 with an organic solvent such as acetone or toluene. The cleaning with the solvent and / or the degreasing treatment is preferably performed before other pretreatments.

Examples of the blasting process include shot blasting and sand blasting.

Examples of the polishing treatment include buffing polishing using a polishing cloth, roll polishing using polishing paper (sandpaper), electrolytic polishing, and the like.

Plasma treatment uses a plasma treatment high-pressure power supply to hit the surface of the material with a plasma beam emitted from a rod called an electrode, first cleans the foreign matter oil film existing on the surface, and then inputs gas energy according to the material to remove surface molecules. Examples of the excitation method include an atmospheric pressure plasma treatment method capable of imparting a hydroxyl group or a polar group to the surface.

Laser treatment is a technique that improves the surface characteristics by rapidly heating and cooling only the surface layer by laser irradiation, and is an effective method for roughening the surface. Known laser processing techniques can be used.

The etching treatment includes, for example, a chemical etching treatment such as an alkali method, a phosphoric acid-sulfuric acid method, a fluoride method, a chromic acid-sulfuric acid method, and a salt iron method, and an electrochemical etching treatment such as an electrolytic etching method. Can be mentioned.
When the metal material is aluminum, the etching treatment is preferably an alkaline method using an aqueous solution of sodium hydroxide or an aqueous solution of potassium hydroxide, and particularly preferably a caustic soda method using an aqueous solution of sodium hydroxide. The alkali method can be carried out, for example, by immersing aluminum, which is a metal material, in an aqueous solution of sodium hydroxide or potassium hydroxide having a concentration of 3 to 20% by mass at 20 to 70 ° C. for 1 to 15 minutes. As the additive, a chelating agent, an oxidizing agent, a phosphate or the like may be added. After the immersion, it is preferably neutralized (de-smuted) with a 5 to 20% by mass aqueous nitric acid solution, washed with water, and dried.

The chemical conversion treatment mainly forms a chemical conversion film on the surface of a metal material.

Examples of the chemical conversion treatment include boehmite treatment and zirconium treatment.
In the boehmite treatment, a boehmite film is formed on the surface of the base material by treating aluminum, which is a metal material, with hot water. Ammonia, triethanolamine, or the like may be added to water as a reaction accelerator. For example, it is preferable to immerse aluminum, which is a metal material, in hot water containing triethanolamine at a concentration of 0.1 to 5.0% by mass at 90 to 100 ° C. for 3 seconds to 5 minutes.
In the zirconium treatment, a film of a zirconium compound is formed on the surface of the base material by immersing aluminum, which is a metal material, in a zirconium salt-containing liquid such as zirconium phosphate. For example, aluminum, which is a metal material, is placed in a chemical agent for zirconium treatment (for example, "Parcolate 3762" manufactured by Nippon Polarizing Co., Ltd., "Parcolate 3796", etc.) at 45 to 70 ° C. It is preferable to immerse the metal in 0.5 to 3 minutes. The zirconium treatment is preferably performed after the etching treatment by the caustic soda method.

When the metal material is aluminum, it is particularly preferable to include at least one pretreatment selected from an etching treatment and a boehmite treatment.

<Resin coating layer 3>
The resin coating layer 3 is laminated on the surface of the metal material 2. The resin coating layer 3 may be laminated on the surface of the metal material 2 which has not been subjected to the pretreatment, or may be laminated on the surface of the metal material 2 which has been subjected to the pretreatment. Alternatively, it may be laminated on the surface of the functional group-containing layer 4 described later.

[Re-denaturation-modified polyphenylene ether layer 31]
At least one of the resin layers constituting the resin coating layer 3 is a re-denatured-modified polyphenylene ether layer 31 formed from a resin composition containing a re-modified-modified polyphenylene ether. In addition, in this specification, a re-modified-modified polyphenylene ether means a mixture of a modified polyphenylene ether described later and a thermoplastic epoxy resin, and / or a mixture of a modified polyphenylene ether and a (meth) acrylic resin.

By laminating such a predetermined resin coating layer on the metal material, the composite laminate of the present embodiment can exhibit excellent adhesiveness to the modified polyphenylene ether.

The resin coating layer is composed of a plurality of layers including the re-modified-modified polyphenylene ether layer 31 and a layer other than the re-modified-modified polyphenylene ether layer, and the layer other than the re-modified-modified polyphenylene ether layer is a thermoplastic epoxy. It may be at least one selected from the thermoplastic epoxy resin layer 32 formed of the resin composition containing the resin and the thermosetting resin layer 33 formed of the resin composition containing the thermosetting resin.

When the resin coating layer is composed of a plurality of layers, it is preferable that the essential re-modified-modified polyphenylene ether layer 31 is laminated so as to be the outermost surface on the opposite side to the metal material 2.

The re-modified-modified polyphenylene ether layer 31 is at least one selected from a layer containing a mixture 1 of a modified polyphenylene ether and a thermoplastic epoxy resin and a layer containing a mixture 2 of a modified polyphenylene ether and a (meth) acrylic resin. It is composed.
The re-modified-modified polyphenylene ether layer 31 preferably contains 50 to 95% by mass of the modified polyphenylene ether, and more preferably 70 to 90% by mass.

(Modified polyphenylene ether (m-PPE))
The modified polyphenylene ether is a polymer alloy of polyphenylene ether (PPE), which is a polymer of 2,6-dimethylphenylene oxide, and polystyrene (PS), polyamide (PA), polyphenylene sulfide (PPS), polypropylene (PP), etc. be. Known modified polyphenylene ethers can be used. Specifically, SABIC NORYL series (PPE / PS): 731, 7310, 731F, 7310F, Asahi Kasei Chemicals Co., Ltd. Zylon series (PPE / PS, PP / PPE, PA / PPE, PPS / PPE, PPA / PPE) There are Epiace series and Remalloy series (PPE / PS, PPE / PA) manufactured by Mitsubishi Engineering Plastics Co., Ltd. Of these, a polymer alloy of PPE and PS is preferable.

(Mixture 1)
Mixture 1 is a mixture of a modified polyphenylene ether and a thermoplastic epoxy resin. The thermoplastic epoxy resin that can be used in the mixture 1 is a resin that is also called a field-polymerized phenoxy resin, a field-curable phenoxy resin, a field-curable epoxy resin, or the like, and a bifunctional epoxy resin and a bifunctional phenol compound are present as a catalyst. By under the multiple addition reaction, a thermoplastic structure, that is, a linear polymer structure is formed. Here, the linear polymer means a polymer that does not contain a crosslinked structure in the polymer molecule and is one-dimensional linear. The thermoplastic epoxy resin has thermoplasticity unlike the thermosetting resin that constitutes a three-dimensional network having a crosslinked structure.

(Bifunctional epoxy resin)
Examples of the bifunctional epoxy resin include bisphenol type epoxy resin and biphenyl type epoxy resin. Of these, one type may be used alone, or two or more types may be used in combination. Specifically, "jER (registered trademark) 828", "jER (registered trademark) 834", "jER (registered trademark) 1001", "jER (registered trademark) 1004", and the same, manufactured by Mitsubishi Chemical Corporation. Examples thereof include "jER (registered trademark) YX-4000".

(Bifunctional phenol compound)
Examples of the bifunctional phenol compound include bisphenol and biphenol. Of these, one type may be used alone, or two or more types may be used in combination.
Examples of these combinations include bisphenol A type epoxy resin and bisphenol A, bisphenol A type epoxy resin and bisphenol F, biphenyl type epoxy resin and 4,4'-biphenol and the like. Further, for example, a combination of "WPE190" and "EX-991L" manufactured by Nagase ChemteX Corporation can be mentioned.

Mixture 1 can be obtained by subjecting a bifunctional epoxy resin and a bifunctional phenol compound to a double addition reaction in the presence of a catalyst in a solution of modified polyphenylene ether. Alternatively, the modified polyphenylene ether may be mixed after the bifunctional epoxy resin and the bifunctional phenol compound are subjected to a double addition reaction in the presence of a catalyst in the solution.

As the catalyst for the polyaddition reaction of the thermoplastic epoxy resin, for example, tertiary amines such as triethylamine and 2,4,6-tris (dimethylaminomethyl) phenol; phosphorus compounds such as triphenylphosphine are preferably used. Used.

The total amount of the bifunctional epoxy resin and the bifunctional phenol compound used in producing the mixture 1 is preferably 5 to 100 parts by mass, preferably 5 to 60 parts by mass, when 100 parts by mass of the modified polyphenylene ether is taken. It is more preferable that the amount is 20 to 40 parts by mass.

(Mixture 2)
Mixture 2 is a mixture of modified polyphenylene ether and (meth) acrylic resin.

((Meta) acrylic resin)
The (meth) acrylic resin used in the mixture 2 is a resin containing 25% by mass or more of units derived from the (meth) acrylate monomer. A monomer other than the (meth) acrylate monomer may be copolymerized. Examples of the other monomer include styrene, (meth) acrylic acid, (meth) acrylamide, and the like, and styrene and methacrylic acid are preferable. Further, some polyfunctional monomers may be copolymerized in order to increase the strength.

As the modified polyphenylene ether used in the mixture 2, the same modified polyphenylene ether as in the case of producing the mixture 1 can be used.

((Meta) acrylate monomer)
As the (meth) acrylate monomer, a known monofunctional (meth) acrylic acid ester is used. Methyl (meth) acrylate, ethyl (meth) acrylate, n-propyl (meth) acrylate, butyl (meth) acrylate, iso-butyl (meth) acrylate, n-hexyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, Decyl (meth) acrylate, lauryl (meth) acrylate, stearyl (meth) acrylate, cyclohexyl (meth) acrylate, 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, dimethylaminoethyl (meth) acrylate, Diethylaminoethyl (meth) acrylate, 3-chloro-2-hydroxypropyl (meth) acrylate, 2,3-dibrompropyl (meth) acrylate, (meth) acrylic acid, glycidyl (meth) acrylate, 2-methacryloyloxyethyl isocyanate And so on. Of these, one type may be used alone, or two or more types may be used in combination.

Mixture 2 can be obtained by radical polymerization of the (meth) acrylate monomer in a solution containing modified polyphenylene ether. Alternatively, the mixture 2 can also be obtained by mixing a modified polyphenylene ether and a (meth) acrylic resin by a conventional method.

The total amount of the (meth) acrylic resin used in producing the mixture 2 is preferably 5 to 100 parts by mass, preferably 5 to 60 parts by mass, when the modified polyphenylene ether is 100 parts by mass. More preferably, it is 20 to 40 parts by mass.

[Thermoplastic epoxy resin layer 32]
The resin coating layer 3 is composed of a plurality of resin layers of the remodified-modified polyphenylene ether layer 31 and other layers, and at least one of the resin layers other than the remodified-modified polyphenylene ether layer is formed. It can be composed of a thermoplastic epoxy resin layer 32 formed of a resin composition containing a thermoplastic epoxy resin.
The resin composition containing the thermoplastic epoxy resin preferably contains 40% by mass or more of the thermoplastic epoxy resin, and more preferably 70% by mass or more.

(Thermoplastic epoxy resin)
Similar to the thermoplastic epoxy resin used for producing the mixture 1, the thermoplastic epoxy resin has a thermoplastic structure, that is, linear, due to a double addition reaction between the bifunctional epoxy resin and the bifunctional phenol compound in the presence of a catalyst. It is a resin that forms a polymer structure, and has thermoplasticity unlike a thermosetting resin that forms a three-dimensional network with a crosslinked structure.
Due to these characteristics, the thermoplastic epoxy resin has excellent adhesiveness to metal materials due to in-situ polymerization, and also has excellent adhesiveness to the remodified-modified polyphenylene ether layer 31. The epoxy resin layer 32 can be formed.

Therefore, when producing the composite laminate, it is preferable to form the thermoplastic epoxy resin layer 32 in the layer below the re-modified-modified polyphenylene ether layer 31 (on the metal material 2 side).
The thermoplastic epoxy resin layer 32 can be formed by subjecting a composition containing a monomer of the thermoplastic epoxy resin to a heavy addition reaction.
The heavy addition reaction is preferably carried out on the surface of the functional group-containing layer 4 described later. The resin coating layer 3 including the thermoplastic epoxy resin layer 32 formed in such an embodiment is excellent in adhesiveness to the metal material 2 and also excellent in adhesiveness to a bonding object described later.

The coating method for forming the thermoplastic epoxy resin layer 32 with the composition containing the monomer of the thermoplastic epoxy resin is not particularly limited, and examples thereof include a spray coating method and a dipping method.

In addition, in the composition containing the monomer of the thermoplastic epoxy resin, in order to sufficiently proceed the polyaddition reaction of the thermoplastic epoxy resin and form a desired resin coating layer, an additive such as a solvent and, if necessary, a colorant, etc. May include. In this case, it is preferable that the monomer of the thermoplastic epoxy resin is the main component among the components other than the solvent of the composition. The main component means that the content of the thermoplastic epoxy resin is 50 to 100% by mass. The content is preferably 60% by mass or more, more preferably 80% by mass or more.

The monomer for obtaining the thermoplastic epoxy resin is preferably a combination of a bifunctional epoxy resin and a bifunctional phenolic compound.

The heavy addition reaction is preferably carried out by heating at 120 to 200 ° C. for 5 to 90 minutes, although it depends on the type of reaction compound and the like. Specifically, the thermoplastic epoxy resin layer 32 can be formed by coating the resin composition, volatilizing a solvent as appropriate, and then heating to carry out a double addition reaction.

[Thermosetting resin layer 33]
The resin coating layer 3 is composed of a plurality of resin layers of the re-modified-modified polyphenylene ether layer 31 and other layers, and at least one of the resin layers other than the re-modified-modified polyphenylene ether layer is formed. It can also be composed of a thermosetting resin layer 33 formed of a cured product of a resin composition containing a thermosetting resin.

In addition, in the resin composition containing the thermosetting resin, in order to sufficiently proceed the curing reaction of the thermosetting resin and form a desired resin coating layer, an additive such as a solvent and, if necessary, a colorant, etc. May include. In this case, it is preferable that the thermosetting resin is the main component among the components other than the solvent of the resin composition. The main component means that the content of the thermosetting resin is 40 to 100% by mass. The content is preferably 60% by mass or more, more preferably 70% by mass or more, and most preferably 80% by mass or more.

Examples of the thermosetting resin include urethane resin, epoxy resin, vinyl ester resin, and unsaturated polyester resin.

The thermosetting resin layer 33 may be formed by one of these resins alone, or may be formed by mixing two or more of these resins. Alternatively, the thermosetting resin layer 33 may be composed of a plurality of layers, and each layer may be formed of a resin composition containing a different type of thermosetting resin.

The coating method for forming the thermosetting resin layer 33 with the composition containing the monomer of the thermosetting resin is not particularly limited, and examples thereof include a spray coating method and a dipping method.

The thermosetting resin referred to in the present embodiment broadly means a resin that is cross-linked and cured, and is not limited to the heat-curing type, but also includes a room temperature curing type and a photocuring type. The photocurable type can be cured in a short time by irradiating with visible light or ultraviolet rays. The photo-curing type may be used in combination with a heat-curing type and / or a room temperature curing type. Examples of the photocurable type include vinyl ester resins such as "Lipoxy (registered trademark) LC-760" and "Lipoxy (registered trademark) LC-720" manufactured by Showa Denko KK.

(Urethane resin)
The urethane resin is usually a resin obtained by reacting an isocyanato group of an isocyanate compound with a hydroxyl group of a polyol compound, and is defined in ASTM D16 as "a coating material containing polyisocyanate having a vehicle non-volatile component of 10% by mass or more". The corresponding urethane resin is preferable. The urethane resin may be a one-component type or a two-component type.

Examples of the one-component urethane resin include an oil-modified type (which cures by oxidative polymerization of unsaturated fatty acid groups), a moisture-curing type (which cures by the reaction of isocyanato groups with water in the air), and a block type (which cures by the reaction of isocyanato groups with water in the air). Examples thereof include a lacquer type (which cures when the solvent volatilizes and dries), a lacquer type (which cures when the isocyanato group which is dissociated by heating and regenerated and the hydroxyl group reacts with each other and cures). Among these, a moisture-curable one-component urethane resin is preferably used from the viewpoint of ease of handling and the like. Specific examples thereof include "UM-50P" manufactured by Showa Denko KK.

Examples of the two-component urethane resin include a catalyst-curable type (a catalyst-curable type in which an isocyanato group reacts with water in the air to cure in the presence of a catalyst) and a polyol-curable type (a reaction between an isocyanato group and a hydroxyl group of a polyol compound). (Those that are cured by) and the like.

Examples of the polyol compound in the polyol curing type include polyester polyols, polyether polyols, phenol resins and the like.
Further, examples of the isocyanate compound having an isocyanato group in the polyol-curable type include aliphatic isocyanates such as hexamethylene diisocyanate (HDI), tetramethylene diisocyanate, and dimerate diisocyanate; 2,4- or 2,6-tolylene diisocyanate. (TDI) or a mixture thereof, p-phenylenediocyanate, xylylene diisocyanate, diphenylmethane diisocyanate (MDI) and aromatic isocyanates such as polypeptide MDI which is a polynuclear mixture thereof; alicyclic isocyanates such as isophorone diisocyanate (IPDI) and the like. Can be mentioned.
The compounding ratio of the polyol compound and the isocyanate compound in the polyol-curable two-component urethane resin is preferably in the range of 0.7 to 1.5 in the molar equivalent ratio of the hydroxyl group / isocyanato group.

Examples of the urethanization catalyst used in the two-component urethane resin include triethylenediamine, tetramethylguanidine, N, N, N', N'-tetramethylhexane-1,6-diamine, dimethyletheramine, N, Amine-based catalysts such as N, N', N'', N''-pentamethyldipropylene-triamine, N-methylmorpholin, bis (2-dimethylaminoethyl) ether, dimethylaminoethoxyethanol, triethylamine; dibutyltindi Examples thereof include organotin catalysts such as acetate, dibutyltin dilaurate, dibutyltin thiocarboxylate and dibutyltin dimalate.
In the polyol curing type, it is generally preferable to add 0.01 to 10 parts by mass of the urethanization catalyst to 100 parts by mass of the polyol compound.

(Epoxy resin)
The epoxy resin is a resin having at least two epoxy groups in one molecule.
Examples of the prepolymer before curing of the epoxy resin include ether-based bisphenol-type epoxy resin, novolac-type epoxy resin, polyphenol-type epoxy resin, aliphatic-type epoxy resin, ester-based aromatic epoxy resin, and cyclic aliphatic epoxy resin. , Ether-ester type epoxy resin and the like, and among these, bisphenol A type epoxy resin is preferably used. Of these, one type may be used alone, or two or more types may be used in combination.
Specific examples of the bisphenol A type epoxy resin include "jER (registered trademark) 828" and "jER (registered trademark) 1001" manufactured by Mitsubishi Chemical Corporation.
Specific examples of the novolak type epoxy resin include "DEN (registered trademark) 438 (registered trademark)" manufactured by The Dow Chemical Company.

Examples of the curing agent used for the epoxy resin include known curing agents such as aliphatic amines, aromatic amines, acid anhydrides, phenol resins, thiols, imidazoles, and cationic catalysts. When the curing agent is used in combination with a long-chain aliphatic amine and / or a thiol, the effect of having a large elongation rate and excellent impact resistance can be obtained.
Specific examples of the thiols include the same compounds as those exemplified as the thiol compounds for forming the functional group-containing layer described later. Among these, pentaerythritol tetrakis (3-mercaptobutyrate) (for example, "Karens MT (registered trademark) PE1" manufactured by Showa Denko KK) is preferable from the viewpoint of elongation and impact resistance.

(Vinyl ester resin)
The vinyl ester resin is obtained by dissolving a vinyl ester compound in a polymerizable monomer (for example, styrene). Although it is also called an epoxy (meth) acrylate resin, the vinyl ester resin also includes a urethane (meth) acrylate resin.
As the vinyl ester resin, for example, those described in "Polyester Resin Handbook" (Nikkan Kogyo Shimbun, published in 1988), "Paint Glossary" (Japan Society of Color Material, published in 1993), etc. shall also be used. In addition, specifically, "Lipoxy (registered trademark) R-802", "Lipoxy (registered trademark) R-804", "Lipoxy (registered trademark) R-806", etc. manufactured by Showa Denko KK, etc. Can be mentioned.

The urethane (meth) acrylate resin is obtained by, for example, reacting an isocyanate compound with a polyol compound and then reacting with a hydroxyl group-containing (meth) acrylic monomer (and, if necessary, a hydroxyl group-containing allyl ether monomer). Examples thereof include radically polymerizable unsaturated group-containing oligomers. Specific examples thereof include "Lipoxy (registered trademark) R-6545" manufactured by Showa Denko KK.

The vinyl ester resin can be cured by radical polymerization by heating in the presence of a catalyst such as an organic peroxide.
The organic peroxide is not particularly limited, but for example, ketone peroxides, peroxyketals, hydroperoxides, diallyl peroxides, diacyl peroxides, peroxyesters, and peroxides. Oxide carbonates and the like can be mentioned. By combining these with a cobalt metal salt or the like, curing at room temperature is also possible.
The cobalt metal salt is not particularly limited, and examples thereof include cobalt naphthenate, cobalt octylate, and cobalt hydroxide. Of these, cobalt naphthenate and / and cobalt octylate are preferred.

(Unsaturated polyester resin)
The unsaturated polyester resin is a monomer (eg, styrene, etc.) in which a condensation product (unsaturated polyester) obtained by an esterification reaction of a polyol compound and an unsaturated polybasic acid (and, if necessary, a saturated polybasic acid) is polymerized. ) Is dissolved.
As the unsaturated polyester resin, those described in "Polyester Resin Handbook" (Nikkan Kogyo Shimbun, published in 1988), "Paint Glossary" (Japan Society of Color Material, published in 1993), etc. can also be used. Yes, and more specifically, "Rigolac (registered trademark)" manufactured by Showa Denko KK can be mentioned.

The unsaturated polyester resin can be cured by radical polymerization by heating in the presence of a catalyst similar to that of the vinyl ester resin.
[Action of resin coating layer]

The resin coating layer 3 is formed on the surface of the metal material 2 with excellent adhesiveness, and exhibits excellent adhesiveness with the modified polyphenylene ether to be bonded. Further, the surface of the metal material 2 is protected by the resin coating layer 3, and deterioration such as dirt adhesion to the surface of the metal material 2 and oxidation of the surface of the metal material 2 can be suppressed.

As described above, the resin coating layer 3 can impart excellent bondability to the modified polyphenylene ether to be bonded to the metal material 2. Further, it is also possible to obtain a composite laminate capable of maintaining a state in which excellent adhesiveness can be obtained for a long period of several months while the surface of the metal material 2 is protected as described above.

As described above, the resin coating layer 3 exerts an action of imparting excellent bondability to the modified polyphenylene ether to be bonded to the metal material 2, and the resin coating layer may be a primer layer of the composite laminate. can.
The primer layer referred to here is, for example, like the metal-modified polyphenylene ether bonded body 5 described later, when the metal material 2 is bonded and integrated with a bonding target such as a resin material, the metal material 2 and the bonding target are used. It is meant to mean a layer that is interposed between the metal materials 2 and improves the adhesiveness of the metal material 2 to the object to be joined.

<Functional group-containing layer 4>
As shown in FIG. 2, it is also possible to have a one-layer or a plurality of functional group-containing layers 4 laminated in contact with the metal material 2 and the resin coating layer 3 between the metal material 2 and the resin coating layer 3.
When the functional group-containing layer 4 is provided, the functional group formed by the functional group-containing layer reacts with the hydroxyl group on the surface of the metal material 2 and the functional group of the resin constituting the resin coating layer 3, respectively, to form a chemical bond. As a result, the effect of improving the adhesiveness between the surface of the metal material 2 and the resin coating layer 3 can be obtained. In addition, the effect of improving the bondability with the bonding target can also be obtained.
The functional group-containing layer 4 is one or more compounds selected from the group consisting of an isocyanate compound, a thiol compound, an epoxy compound, and an amino compound in at least a part of the functional groups on the surface of the silane coupling agent-treated layer spread in two dimensions. Can be reacted to form a functional group-containing structure in which a functional group that can be chemically bonded to a functional group of an organic material is extended in a three-dimensional direction. One or more compounds selected from the group consisting of the isocyanate compound, the thiol compound, the epoxy compound, and the amino compound include a group capable of reacting with a functional group on the surface of the silane coupling agent-treated layer and a resin constituting the resin coating layer. It is preferably a compound having a group capable of reacting with the functional group having the compound.

"process"
The functional group-containing layer 4 is preferably formed by subjecting the surface of the metal material 2 to at least one treatment selected from the group consisting of the following (1') to (7').
(1') Treatment with a silane coupling agent having at least one functional group selected from the group consisting of an epoxy group, an amino group, a (meth) acryloyl group and a mercapto group (2') A silane coupling agent having an amino group Treatment to add at least one selected from epoxy compounds and thiol compounds after treatment with (3') After treatment with a silane coupling agent having a mercapto group, epoxy compounds, amino compounds, isocyanate compounds, (meth) acryloyl Treatment to add at least one selected from the group consisting of compounds having a group and an epoxy group, and a compound having a (meth) acryloyl group and an amino group (4') In a silane coupling agent having a (meth) acryloyl group. Treatment to add a thiol compound after treatment (5') After treatment with a silane coupling agent having an epoxy group, it is selected from the group consisting of compounds having amino groups and (meth) acryloyl groups, amino compounds, and thiol compounds. Treatment to add at least one (6') Treatment with isocyanate compound (7') Treatment with thiol compound << Functional group >>
The functional group-containing layer 4 preferably contains the functional group introduced by the above treatment, and specifically, preferably contains at least one functional group selected from the group consisting of the following (1) to (7). ..
(1) At least one functional group derived from a silane coupling agent and selected from the group consisting of an epoxy group, an amino group (meth) acryloyl group, and a mercapto group. (2) An amino group derived from a silane coupling agent , A functional group obtained by reacting at least one selected from an epoxy compound and a thiol compound (3) An epoxy compound, an amino compound, an isocyanate compound, a (meth) acryloyl group and an epoxy group are added to a mercapto group derived from a silane coupling agent. A functional group obtained by reacting at least one selected from the group consisting of a compound having a compound and a compound having a (meth) acryloyl group and an amino group. (4) A thiol compound is added to a (meth) acryloyl group derived from a silane coupling agent. Reacting functional group (5) An epoxy group derived from a silane coupling agent is reacted with at least one selected from the group consisting of a compound having an amino group and a (meth) acryloyl group, an amino compound, and a thiol compound. (6) Isocyanato group derived from isocyanate compound (7) Mercapto group derived from thiol compound

Before forming the functional group-containing layer 4 on the metal material 2, the surface of the metal material 2 may be subjected to the above-mentioned pretreatment.
By applying the pretreatment, the anchor effect due to the fine irregularities 21 and the functional groups of the functional group-containing layer 4 react with the hydroxyl groups on the surface of the metal material 2 and the functional groups of the resin constituting the resin coating layer 3. By the synergistic effect with the chemical bond formed in the above process, the adhesiveness between the surface of the metal material 2 and the resin coating layer 3 and the bondability with the bonding target can be improved.

The method for forming the functional group-containing layer with the silane coupling agent, the isocyanate compound, the thiol compound and the like is not particularly limited, and examples thereof include a spray coating method and a dipping method. Specifically, the metal material is immersed in a solution of a silane coupling agent having a concentration of 5 to 50% by mass at room temperature to 100 ° C. for 1 minute to 5 days, and then dried at room temperature to 100 ° C. for 1 minute to 5 hours. It can be done by a method such as making it.

〔Silane coupling agent〕
As the silane coupling agent, for example, known ones used for surface treatment of glass fibers and the like can be used. A silanol group generated by hydrolyzing a silane coupling agent or a silanol group obtained by oligomerizing the silanol group reacts with a hydroxyl group existing on the surface of the metal material 2 and bonds to the resin coating layer 3 to be chemically bonded. A functional group based on the structure of the silane coupling agent can be imparted (introduced) to the metal material 2.

The silane coupling agent is not particularly limited, but examples of the silane coupling agent having an epoxy group include 2- (3,4-epoxycyclohexyl) ethyltrimethoxysilane and 3-glycidoxy. Examples thereof include propylmethyltrimethoxysilane, 3-glycidoxypropylmethyldiethoxysilane, and 3-glycidoxypropyltriethoxysilane. Examples of the silane coupling agent having an amino group include N-2- (aminoethyl) -3-aminopropylmethyldimethoxysilane, N-2- (aminoethyl) -3-aminopropyltrimethoxysilane, and 3-aminopropyltri. Examples thereof include methoxysilane and 3-aminopropyltriethoxysilane. Examples of the silane coupling agent having a mercapto group include 3-mercaptopropylmethyldimethoxysilane and dithioltriazinepurpiltriethoxysilane. Examples of the silane coupling agent having a (meth) acryloyl group include 3-methacryloxypropylmethyldimethoxysilane, 3-methacryloxypropyltrimethoxysilane, 3-methacryloxypropylmethyldiethoxysilane, and 3-methacryloxypropyltriethoxysilane. , 3-Acryloxypropyltrimethoxysilane and the like. In addition, as other effective silane coupling agents, silane coupling agents having a vinyl group such as 3-isocyanatopropyltriethoxysilane, vinyltrimethoxysilane, vinyltriethoxysilane, and p-styryltrimethoxysilane, 3-tri. Ethethoxysilyl-N- (1,3-dimethyl-butylidene) propylamine, N-phenyl-3-aminopropyltrimethoxysilane, N- (vinylbenzyl) -2-aminopropyltrimethoxysilane hydrochloride, tris-( Trimethoxysilylpropyl) isocyanurate, 3-ureidopropyltrialkoxysilane, and the like. These may be used alone or in combination of two or more.

[Epoxy compound]
As the epoxy compound, a known epoxy compound or the like can be used. A polyvalent epoxy compound or a compound having an alkenyl group other than the epoxy group is preferable. The epoxy compound is not particularly limited, but for example, glycidyl (meth) acrylate, allyl glycidyl ether, which can have a (meth) acryloyl group or an allyl group whose terminal group is a radical reactive group, and allyl glycidyl ether, and the like. Examples thereof include 1,6-hexanediol diglycidyl ether having an epoxy group as a terminal group, and an epoxy resin having two or more epoxy groups in the molecule. It may also be an alicyclic epoxy compound, such as 3,4-epoxycyclohexylmethylmethacrylate (Cyclomer M100 manufactured by Daicel Co., Ltd.), 1,2-epoxy-4-vinylcyclohexane (Ceroxide 2000 manufactured by Daicel Co., Ltd.), 3', Examples thereof include 4'-epoxycyclohexylmethyl 3,4-epoxycyclohexanecarboxylate (celloxide 2021P manufactured by Daicel Co., Ltd.).

[Thiol compound]
The thiol compound is based on the structure of the thiol compound which can be chemically bonded to a resin coating layer or a bonding target by reacting and bonding a mercapto group in the thiol compound with a hydroxyl group existing on the surface of the metal material 2. A functional group can be imparted (introduced) to a metal material.

The thiol compound is not particularly limited, but for example, pentaerythritol tetrakis (3-mercaptopropionate) having a thiol group as a terminal group (for example, "QX40" manufactured by Mitsubishi Chemical Corporation). "QE-340M" manufactured by Toray Fine Chemicals Co., Ltd.), ether-based first-class thiol (for example, "Cup Cure 3-800" manufactured by Cognis), 1,4-bis (3-mercaptobutylyloxy) butane ( For example, "Karens MT (registered trademark) BD1" manufactured by Showa Denko Co., Ltd.), pentaerythritol tetrakis (3-mercaptobutylate) (for example, "Karens MT (registered trademark) PE1" manufactured by Showa Denko Co., Ltd.), 1 , 3,5-Tris (3-mercaptobutyloxyethyl) -1,3,5-triazine-2,4,6 (1H, 3H, 5H) -trion (for example, "Carens MT (registered)" manufactured by Showa Denko Co., Ltd. Trademark) NR1 ”) and the like.

[Amino compound]
As the amino compound, a known amino compound or the like can be used. Polyfunctional amino compounds and compounds having an alkenyl group in addition to the amino group (including amide) are preferable. The amino compound is not particularly limited, but for example, ethylenediamine having an amino group at the terminal, 1,2-propanediamine, 1,3-propanediamine, 1,4-diaminobutane, hexamethylenediamine, and the like. 2,5-dimethyl-2,5-hexanediamine, 2,2,4-trimethylhexamethylenediamine, diethylenetriamine, triethylenetetramine, tetraethylenepentamine, pentaethylenehexamine, 4-aminomethyloctamethylenediamine, 3,3 '-Iminobis (propylamine), 3,3'-methylimiminobis (propylamine), bis (3-aminopropyl) ether, 1,2-bis (3-aminopropyloxy) ethane, mensendiamine, isophoronediamine , Bisaminomethylnorbornan, bis (4-aminocyclohexyl) methane, bis (4-amino-3-methylcyclohexyl) methane, 1,3-diaminocyclohexane, 3,9-bis (3-aminopropyl) -2,4 , 8,10-Tetraoxaspiro [5,5] undecane, aminoethylpiperazine, (meth) acrylamide, which can be a (meth) acryloyl group whose terminal group is a radically reactive group, and the like.

[Isocyanate compound]
The isocyanate compound is a functional group based on the structure of the isocyanate compound, which can be chemically bonded to the resin coating layer 3 by reacting and bonding an isocyanato group in the isocyanate compound with a hydroxyl group existing on the surface of the metal material 2. Can be imparted (introduced) to the metal material.

The isocyanate compound is not particularly limited, but is, for example, diphenylmethane diisocyanate (MDI), hexamethylene diisocyanate (HDI), tolylene diisocyanate (TDI), isophorone diisocyanate, which are polyfunctional isocyanates having an isocyanato terminal group. 2-Isocyanatoethyl methacrylate (for example, "Karens MOI (registered trademark)" manufactured by Showa Denko Co., Ltd., which is an isocyanate compound whose terminal group can be a (meth) acryloyl group which is a radical reactive group in addition to (IPDI) and the like. ) ”), 2-Isocyanate ethyl acrylate (for example,“ Karens AOI (registered trademark) ”manufactured by Showa Denko Co., Ltd.,“ AOI-VM (registered trademark) ”), 1,1- (bisacryloyloxyethyl) ethyl isocyanate (For example, "Karens BEI (registered trademark)" manufactured by Showa Denko Co., Ltd.) and the like.

[Metal-modified polyphenylene ether conjugate 5]
As shown in FIG. 3, in the metal-modified polyphenylene ether conjugate 5 of the present embodiment, the resin coating layer 3 of the composite laminate 1 is a primer layer as described above, and the surface on the primer layer side and the surface on the primer layer side. It is bonded and integrated with the modified polyphenylene ether 6.

The thickness of the primer layer (thickness after drying) depends on the material to be bonded and the contact area of the bonded portion, but from the viewpoint of obtaining excellent adhesiveness between the surface on the primer layer side and the modified polyphenylene ether. Therefore, it is preferably 1 μm to 500 μm, more preferably 3 μm to 100 μm, and further preferably 5 μm to 70 μm. When the primer layer is a plurality of layers, the thickness of the primer layer (thickness after drying) is the total thickness of each layer.

The modified polyphenylene ether in the metal-modified polyphenylene ether conjugate 5 is not particularly limited, and the above-mentioned ones can be used.

As a method for producing the metal-modified polyphenylene ether bonded body 5, a composite laminate 1 and a molded body of the modified polyphenylene ether 6 separately prepared can be bonded and integrated.
Further, at the same time as molding the molded body of the modified polyphenylene ether 6, it is also possible to join and integrate it with the composite laminate 1. Specifically, when the modified polyphenylene ether 6 is molded by, for example, injection molding, press molding, transfer molding, or the like, the surface of the composite laminate 1 on the primer layer side and the modified polyphenylene ether 6 are joined and integrated. By forming the metal-modified polyphenylene ether conjugate, a metal-modified polyphenylene ether conjugate can be obtained.

Next, specific examples of the present invention will be described, but the present invention is not limited to these examples.

<Manufacturing example 1>
A modified polyphenylene ether (NOLYL731 manufactured by SABIC): 3.77 g and xylene: 95 g were charged in a flask, and the temperature was raised to 125 ° C. with stirring to dissolve. Next, a bifunctional epoxy resin (jER (registered trademark) 1001 manufactured by Mitsubishi Chemical Co., Ltd.): 1.0 g, bisphenol A: 0.22 g, 2,4,6-tris (dimethylaminomethyl) phenol: 0.005 g. Put it in a flask, stir at 125 ° C. for 30 minutes, and re-modified-modified polyphenylene ether modified with 32 parts by mass of thermoplastic epoxy resin with respect to 100 parts by mass of the modified polyphenylene ether: re-modified m-PPE-1. Obtained.

<Manufacturing example 2>
A modified polyphenylene ether (NOLYL731 manufactured by SABIC): 3.75 g and xylene: 95 g were placed in a flask and dissolved by raising the temperature to 125 ° C. with stirring. Next, a bifunctional epoxy resin (jER (registered trademark) 1007 manufactured by Mitsubishi Chemical Co., Ltd.): 1.18, bisphenol A: 0.065 g, 2,4,6-tris (dimethylaminomethyl) phenol: 0.004 g. Put it in a flask, stir at 125 ° C. for 30 minutes, and re-modified-modified polyphenylene ether modified with 33 parts by mass of thermoplastic epoxy resin with respect to 100 parts by mass of the modified polyphenylene ether: re-modified m-PPE-2. Obtained.

<Manufacturing example 3>
A modified polyphenylene ether (NOLYL731 manufactured by SABIC): 7.0 g and xylene: 95 g were charged in a flask, and the temperature was raised to 125 ° C. with stirring to dissolve. Next, an organic peroxide catalyst (Perbutyl (registered trademark) O manufactured by Nichiyu Co., Ltd.): 0.1 g was added to a monomer mixture in which methacrylic acid: 1.0 g, methyl methacrylate: 1.0 g, and styrene: 1.0 g were mixed. Was added dropwise and stirred at 125 ° C. for 30 minutes with stirring to obtain a re-modified-modified polyphenylene ether modified with a methacrylic resin: re-modified m-PPE-3.

<Manufacturing example 4>
In a flask, a bifunctional epoxy resin (jER® 1007 manufactured by Mitsubishi Chemical Co., Ltd.): 1.18 g, bisphenol A: 0.065 g, 2,4,6-tris (dimethylaminomethyl) phenol: 0.004 g, Xylene: 95 g was charged, the temperature was raised to 140 ° C., and the reaction was carried out with stirring for 1 hour to obtain a thermoplastic epoxy resin. Next, 1.24 g of modified polyphenylene ether (NOLYL731 manufactured by SABIC) was added, and the mixture was stirred and mixed for 10 minutes to obtain re-modified m-PPE-4.

<Manufacturing example 5>
An organic peroxide catalyst (Perbutyl (registered trademark) manufactured by Nichiyu Co., Ltd.) was added to a monomer mixture in which 95 g of xylene was charged in a flask and 1.0 g of methacrylic acid, 1.0 g of methyl methacrylate and 1.0 g of styrene were mixed. ): A mixture of 0.1 g was added dropwise, and the mixture was stirred at 125 ° C. for 30 minutes to obtain a methacrylic resin solution. Next, 3.0 g of polyphenylene ether (NOLYL731 manufactured by SABIC) was added, and the mixture was stirred and mixed for 10 minutes to obtain a re-modified polyphenylene ether modified with a methacrylic resin: re-modified m-PPE-5.

<Example 1-1>
(Preprocessing)
An 18 mm × 45 mm, 1.5 mm thick aluminum plate (A6063) was immersed in a 5% by mass sodium hydroxide aqueous solution for 1.5 minutes, neutralized with a 5% by mass nitric acid aqueous solution, and washed with water. Etching treatment was performed by drying.
Next, the etched aluminum plate is boiled in pure water for 10 minutes and then baked at 250 ° C. for 10 minutes to perform boehmite treatment, and the surface of the aluminum plate has a surface-treated portion (having surface irregularities). Boehmite film) was formed.
When the surface of the aluminum plate after the boehmite treatment was observed by a SEM photograph (scanning electron micrograph, 45 ° tilt observation), as shown in FIG. 4, a boehmite film having whisker-like irregularities on the surface was formed. It was confirmed that there was.

(Formation of functional group-containing layer)
Next, the pretreatment was carried out in a solution containing a silane coupling agent at 70 ° C. in which 2 g of 3-aminopropyltrimethoxysilane (KBM-903 manufactured by Shinetsu Silicone Co., Ltd .; a silane coupling agent) was dissolved in 1000 g of industrial ethanol. The latter aluminum plate was immersed for 20 minutes. The aluminum plate was taken out and dried to form a functional group (amino group) -containing layer on the surface of the boehmite film.

(Formation of resin coating layer)
Next, the re-modified m-PPE-1 obtained in Production Example 1 was applied to the surface of the functional group-containing layer of the aluminum plate, xylene was volatilized, and the mixture was held at 150 ° C. for 30 minutes to obtain the functional group-containing layer. A composite laminate in which a resin coating layer (thickness 30 μm) of re-modified m-PPE-1 was formed on the surface was prepared.

<Example 1-2>
A modified polyphenylene ether resin (NOLYL731 manufactured by SABIC) to be bonded was placed on the surface of the composite laminate produced in Example 1-1 on the resin coating layer side, and an injection molding machine (SE100V manufactured by Sumitomo Heavy Industries, Ltd .; cylinder). A test piece for tensile test (m-PPE resin) conforming to ISO19095 by injection molding at a temperature of 290 ° C., a tool temperature of 120 ° C., an injection speed of 50 mm / sec, and a peak / holding pressure of 175/150 [MPa / MPa]). (10 mm × 45 mm × 3 mm, joint length 5 mm) (metal-modified polyphenylene ether joint) was prepared.

(Evaluation of bondability)
The tensile test test piece prepared in Example 1-2 was left at room temperature (temperature 23 ° C., 50% RH) for 1 day, and then subjected to a tensile tester (manufactured by Shimadzu Corporation) in accordance with ISO19095 1-4. The tensile shear adhesive strength test was performed on the autograph "AG-IS"; load cell 10 kN, tensile speed 10 mm / min, temperature 23 ° C., 50% RH), and the joint strength was measured. The measurement results are shown in Table 1 below.

<Example 2-1>
(Preprocessing)
The same operation as in Example 1-1 was carried out to form a boehmite film having whisker-like irregularities on the surface of an aluminum plate (18 mm × 45 mm, thickness 1.5 mm A6063).

(Formation of functional group-containing layer)
Next, the same operation as in Example 1-1 was carried out to form a functional group (amino group) -containing layer on the surface of the boehmite film.

(Formation of resin coating layer: 1st layer)
A bifunctional epoxy resin (jER® 1001 manufactured by Mitsubishi Chemical Corporation): 100 g, bisphenol A: 24 g, and triethylamine: 0.4 g are dissolved in 250 g of acetone on the surface of the functional group-containing layer. The thermoplastic epoxy resin composition was applied by a spray method so that the thickness after drying was 30 μm. After volatilizing the solvent by leaving it in the air at room temperature for 30 minutes, it is left in a furnace at 150 ° C. for 30 minutes to perform a heavy addition reaction, and then allowed to cool to room temperature to allow the first resin coating layer (1st layer). Thermoplastic epoxy resin layer) was formed.

(Formation of resin coating layer: second layer)
Next, the remodified m-PPE-3 obtained in Production Example 3 was applied to the surface of the thermoplastic epoxy resin layer, xylene was volatilized, and the mixture was held at 150 ° C. for 30 minutes to obtain the thermoplastic epoxy resin layer. A composite laminate in which a resin coating layer (thickness 30 μm) of remodified m-PPE-3 was formed on the surface was prepared.

<Example 2-2>
A test piece for a tensile test was prepared by performing the same operation as in Example 1-2 on the surface of the composite laminate prepared in Example 2-1 on the resin coating layer side of the second layer.
The joint strength of the test piece was measured by the same method as in Example 1-2. The measurement results are shown in Table 1 below.

<Example 3-1>
(Preprocessing)
The same operation as in Example 1-1 was carried out to form a boehmite film having whisker-like irregularities on the surface of an aluminum plate (18 mm × 45 mm, thickness 1.5 mm A6063).

(Formation of functional group-containing layer)
Next, the pretreated aluminum plate is prepared by dissolving 0.5 g of 3-methacryloxypropyltrimethoxysilane (KBM-503 manufactured by Shinetsu Silicone Co., Ltd .; a silane coupling agent) in 100 g of industrial ethanol at 70 ° C. After immersing in the silane coupling agent solution of silane for 5 minutes, the aluminum plate was taken out and dried, and a functional group (methacryloyloxy group) derived from the silane coupling agent was introduced into the surface of the aluminum plate.
Further, a bifunctional thiol compound 1,4 bis (3-mercaptobutyryloxy) butane (Carens MT BD1 manufactured by Showa Denko KK): 0.6 g, 2,4,6-tris (dimethylaminomethyl) phenol (DMP-) 30): After immersing 0.05 g in a solution of 0.05 g in 150 g of toluene at 70 ° C. for 10 minutes, the mixture was lifted and dried. In this way, a functional group (mercapto group) -containing layer having a chemically bondable functional group was formed.

(Formation of resin coating layer)
Next, the re-modified m-PPE-2 obtained in Production Example 2 was applied to the surface of the functional group-containing layer of the aluminum plate, xylene was volatilized and held at 150 ° C. for 30 minutes to obtain the functional group-containing layer. A composite laminate in which a resin coating layer (thickness 30 μm) of re-modified m-PPE-2 was formed on the surface was prepared.

<Example 3-2>
A test piece for a tensile test was prepared by performing the same operation as in Example 1-2 on the surface of the composite laminate prepared in Example 3-1 on the resin coating layer side.
The joint strength of the test piece was measured by the same method as in Example 1-2. The measurement results are shown in Table 1 below.

<Example 4-1>
(Preprocessing)
The surface of a copper plate of 18 mm × 45 mm and a thickness of 1.5 mm was polished with # 1000 sandpaper and washed with acetone.

(Formation of functional group-containing layer)
Next, the pretreatment was carried out in a solution containing a silane coupling agent at 70 ° C. in which 2 g of 3-aminopropyltrimethoxysilane (KBM-903 manufactured by Shinetsu Silicone Co., Ltd .; a silane coupling agent) was dissolved in 1000 g of industrial ethanol. The latter copper plate was immersed for 20 minutes. The copper plate was taken out and dried to form a functional group (amino group) -containing layer on the surface of the copper plate.

(Formation of resin coating layer)
Next, the re-modified m-PPE-4 obtained in Production Example 4 was applied to the surface of the functional group-containing layer of the copper plate, xylene was volatilized and held at 150 ° C. for 30 minutes, and the surface of the functional group-containing layer was held. A composite laminate on which a resin coating layer (thickness 30 μm) of re-modified m-PPE-4 was formed was prepared.

<Example 4-2>
A test piece for a tensile test was prepared by performing the same operation as in Example 1-2 on the surface of the composite laminate prepared in Example 4-1 on the resin coating layer side.
The joint strength of the test piece was measured by the same method as in Example 1-2. The measurement results are shown in Table 1 below.

<Example 5-1>
(Preprocessing)
The surface of an 18 mm × 45 mm, 1.5 mm thick iron plate was polished with # 100 sandpaper and washed with acetone.

(Formation of resin coating layer)
Next, the re-modified m-PPE-5 obtained in Production Example 5 was applied to the surface of the iron plate, xylene was volatilized and held at 150 ° C. for 30 minutes, and the re-modified m-PPE- was applied to the surface of the iron plate. A composite laminate in which the resin coating layer (thickness 30 μm) of No. 5 was formed was produced.

<Example 5-2>
A test piece for a tensile test was prepared by performing the same operation as in Example 1-2 on the surface of the composite laminate prepared in Example 5-1 on the resin coating layer side.
The joint strength of the test piece was measured by the same method as in Example 1-2. The measurement results are shown in Table 1 below.

<Example 6-1>
(Preprocessing)
The surface of a stainless steel plate (SUS304) having a thickness of 18 mm × 45 mm and a thickness of 1.5 mm was polished with # 100 sandpaper and washed with acetone.

(Formation of functional group-containing layer)
Next, the pretreatment was carried out in a solution containing a silane coupling agent at 70 ° C. in which 2 g of 3-aminopropyltrimethoxysilane (KBM-903 manufactured by Shinetsu Silicone Co., Ltd .; a silane coupling agent) was dissolved in 1000 g of industrial ethanol. The latter stainless steel plate was immersed for 20 minutes. The stainless steel plate was taken out and dried, and a functional group (amino group) derived from a silane coupling agent was introduced on the surface of the stainless steel plate. Subsequently, pentaerythritol tetrakis (3-mercaptobutyrate) (Showa Denko KK "Karensu MT (registered trademark) PE1"): 1.2 g, 2,4,6-tris (dimethylaminomethyl) phenol (DMP) -30): After immersing 0.05 g in a solution of 0.05 g in 150 g of toluene at 70 ° C. for 5 minutes, the mixture was lifted and dried. In this way, a functional group-containing layer having a chemically bondable functional group (mercapto group) was formed.

(Formation of resin coating layer)
Thermosetting in which 100 g of solid vinyl ester resin (VR-77 manufactured by Showa Denko Co., Ltd.) is dissolved in 100 g of acetone and 1.0 g of organic peroxide (Perbutyl (registered trademark) O manufactured by Kayaku Akzo Corporation) is further mixed. The sex resin composition is applied to the functional group-adhering surface of the stainless steel plate after the formation of the functional group-containing layer (hereinafter referred to as the functional group-containing layer surface) by a spray method so that the dry thickness is 15 μm. The solvent was volatilized by leaving it in the air at room temperature for 1 hour. Then, it was left in a drying oven at 120 ° C. for 30 minutes to cure the vinyl ester resin to form a thermosetting resin layer (first layer of the resin coating layer).
Subsequently, the re-denatured m-PPE-5 obtained in Production Example 5 was applied to the surface of the thermosetting resin layer of the stainless steel plate, xylene was volatilized and held at 150 ° C. for 30 minutes, and the functional group-containing layer was held. A composite laminate in which a resin coating layer (thickness 30 μm) of re-modified m-PPE-5 was formed on the surface of the above was prepared.

<Example 6-2>
A test piece for a tensile test was prepared by performing the same operation as in Example 1-2 on the surface of the composite laminate prepared in Example 6-1 on the resin coating layer side.
The joint strength of the test piece was measured by the same method as in Example 1-2. The measurement results are shown in Table 1 below.

<Comparative Example 1-1>
(Preprocessing)
The same operation as in Example 1-1 was carried out to form a boehmite film having whisker-like irregularities on the surface of an aluminum plate (18 mm × 45 mm, thickness 1.5 mm A6063).

<Comparative Example 1-2>
The same injection molding operation as in Example 1-2 was performed on the surface of the boehmite film of Comparative Example 1-1, but the m-PPE resin did not adhere to the surface of the boehmite film, and the metal-modified polyphenylene ether. It was not possible to make a conjugate.

<Comparative Example 2-1>
(Preprocessing)
The same operation as in Example 1-1 was carried out to form a boehmite film having whisker-like irregularities on the surface of an aluminum plate (18 mm × 45 mm, thickness 1.5 mm A6063).

(Formation of functional group-containing layer)
Next, the same operation as in Example 1-1 was carried out to form a functional group (amino group) -containing layer on the surface of the boehmite film.

<Comparative Example 2-2>
The same operation as in Example 1-2 was carried out on the surface of the functional group-containing layer of Comparative Example 2-1 to prepare a test piece for a tensile test.
The joint strength of the test piece was measured by the same method as in Example 1-2. The measurement results are shown in Table 1 below.

As shown in Examples (1-2) to (6-2) of Table 1, by using a composite laminate having a resin coating layer containing a re-modified-modified polyphenylene ether layer, a metal and a modified polyphenylene ether can be used. Can be joined with high strength.

The composite laminate according to the present invention is joined and integrated with a modified polyphenylene ether, for example, a door side panel, a bonnet, a roof, a tailgate, a steering hanger, an A pillar, a B pillar, a C pillar, a D pillar, a crash box, and the like. Power control unit (PCU) housing, electric compressor members (inner wall, suction port, exhaust control valve (ECV) insertion, mount boss, etc.), lithium-ion battery (LIB) spacer, battery case, LED head lamp, etc. It is used as an automobile part, a smartphone, a notebook computer, a tablet computer, a smart watch, a large liquid crystal television (LCD-TV), an outdoor LED lighting structure, and the like, but is not particularly limited to these exemplified applications.

1 Composite laminate 2 Metal material 21 Fine irregularities 3 Resin coating layer (primer layer)
31 Re-modified-modified polyphenylene ether layer 32 Thermoplastic epoxy resin layer 33 Thermosetting resin layer 4 Functional group-containing layer 5 Metal-modified polyphenylene ether conjugate 6 Modified polyphenylene ether

Claims (17)

A composite laminate having a metal material and a resin coating layer composed of one or a plurality of resin layers laminated on the metal material.
At least one of the resin layers is a re-denatured-modified polyphenylene ether layer formed from a resin composition containing a re-modified-modified polyphenylene ether.
The re-modified-modified polyphenylene ether layer is laminated on the outermost surface of the resin coating layer on the opposite side to the metal material.
The re-denatured-modified polyphenylene ether layer
A composite that is at least one selected from a layer containing a mixture 1 which is a mixture of a modified polyphenylene ether and a thermoplastic epoxy resin, and a layer containing a mixture 2 which is a mixture of a modified polyphenylene ether and a (meth) acrylic resin. Laminate. The composite laminate according to claim 1, wherein the mixture 1 is formed by subjecting a bifunctional epoxy resin and a bifunctional phenol compound to a double addition reaction in a solution containing a modified polyphenylene ether. The composite laminate according to claim 1, wherein the mixture 1 is a mixture of a modified polyphenylene ether and a thermoplastic epoxy resin. The composite laminate according to claim 1, wherein the mixture 2 is formed by radical polymerization of a (meth) acrylate monomer in a solution containing a modified polyphenylene ether. The composite laminate according to claim 1, wherein the mixture 2 is a mixture of a modified polyphenylene ether and a (meth) acrylic resin. The resin coating layer is further formed from a thermoplastic epoxy resin layer formed of a resin composition containing a thermoplastic epoxy resin and a cured product of a resin composition containing a thermosetting resin. The composite laminate according to any one of claims 1 to 5, which comprises at least one resin layer selected from. The composite laminate according to claim 6, wherein the thermosetting resin is at least one selected from the group consisting of urethane resin, epoxy resin, vinyl ester resin and unsaturated polyester resin. A functional group-containing layer laminated in contact with the metal material and the resin coating layer is provided between the metal material and the resin coating layer.
The composite laminate according to any one of claims 1 to 7, wherein the functional group-containing layer contains at least one functional group selected from the group consisting of the following (1) to (7).
(1) At least one functional group derived from a silane coupling agent and selected from the group consisting of an epoxy group, an amino group (meth) acryloyl group, and a mercapto group. (2) An amino group derived from a silane coupling agent , A functional group obtained by reacting at least one selected from an epoxy compound and a thiol compound (3) An epoxy compound, an amino compound, an isocyanate compound, a (meth) acryloyl group and an epoxy group are added to a mercapto group derived from a silane coupling agent. A functional group obtained by reacting at least one selected from the group consisting of a compound having a compound and a compound having a (meth) acryloyl group and an amino group. (4) A thiol compound is added to a (meth) acryloyl group derived from a silane coupling agent. Reacting functional group (5) An epoxy group derived from a silane coupling agent is reacted with at least one selected from the group consisting of a compound having an amino group and a (meth) acryloyl group, an amino compound, and a thiol compound. (6) Isocyanato group derived from isocyanate compound (7) Mercapto group derived from thiol compound The metal material according to any one of claims 1 to 8, wherein the surface of the metal material is subjected to at least one pretreatment selected from the group consisting of blasting treatment, polishing treatment, etching treatment and chemical conversion treatment. Composite laminate. The composite laminate according to any one of claims 1 to 8, wherein the metal material is aluminum. The composite laminate according to claim 9, wherein the metal material is aluminum. The composite laminate according to claim 11, wherein the pretreatment is at least one selected from an etching treatment and a bemite treatment. The composite laminate according to any one of claims 1 to 9, wherein the metal material comprises at least one selected from the group consisting of iron, titanium, magnesium, stainless steel and copper. The method for producing a composite laminate according to any one of claims 8 to 13.
A method for producing a composite laminate, wherein the surface of the metal material is subjected to at least one treatment selected from the group consisting of the following (1') to (7') to form the functional group-containing layer.
(1') Treatment with a silane coupling agent having at least one functional group selected from the group consisting of an epoxy group, an amino group, a (meth) acryloyl group and a mercapto group (2') A silane coupling agent having an amino group Treatment to add at least one selected from epoxy compounds and thiol compounds after treatment with (3') After treatment with a silane coupling agent having a mercapto group, epoxy compounds, amino compounds, isocyanate compounds, (meth) acryloyl Treatment to add at least one selected from the group consisting of compounds having a group and an epoxy group, and a compound having a (meth) acryloyl group and an amino group (4') In a silane coupling agent having a (meth) acryloyl group. Treatment to add a thiol compound after treatment (5') After treatment with a silane coupling agent having an epoxy group, it is selected from the group consisting of compounds having amino groups and (meth) acryloyl groups, amino compounds, and thiol compounds. Treatment to add at least one (6') Treatment with isocyanate compound (7') Treatment with thiol compound The composite laminate according to claim 14, wherein the metal material is subjected to at least one pretreatment selected from the group consisting of a blast treatment, a polishing treatment, an etching treatment and a chemical conversion treatment before forming the functional group-containing layer. How to make a body. A metal-modified polyphenylene ether conjugate in which a surface of the composite laminate according to any one of claims 1 to 13 on the resin coating layer side and a modified polyphenylene ether are bonded and integrated. The method for producing a metal-modified polyphenylene ether conjugate according to claim 16, wherein the modified polyphenylene ether is injection-molded or press-molded on the surface on the resin coating layer side, and the modified polyphenylene ether is formed on the surface. A method for producing a metal-modified polyphenylene ether conjugate to be bonded to.

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