JP3338857B2 - Coating structure - Google Patents
Coating structureInfo
- Publication number
- JP3338857B2 JP3338857B2 JP21452691A JP21452691A JP3338857B2 JP 3338857 B2 JP3338857 B2 JP 3338857B2 JP 21452691 A JP21452691 A JP 21452691A JP 21452691 A JP21452691 A JP 21452691A JP 3338857 B2 JP3338857 B2 JP 3338857B2
- Authority
- JP
- Japan
- Prior art keywords
- coating layer
- coating
- organic
- component
- inorganic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Application Of Or Painting With Fluid Materials (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、樹脂、金属部材（以
下、「被塗装部材」と記す）、例えば、アルミニウム製
車両用ホイールの塗膜構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coating structure of a resin, a metal member (hereinafter, referred to as a "member to be coated"), for example, an aluminum vehicle wheel.
【０００２】[0002]
【従来の技術】有機質系塗膜は塗膜を厚くできるととも
に塗料の焼成温度があまり高くなくてすむため、従来よ
り、例えば、門扉、街灯、アルミニウム製車両用ホイー
ル等の塗膜として使用されている。2. Description of the Related Art Organic coating films can be made thicker and do not require a high firing temperature of the coating material. Therefore, organic coating films have been conventionally used as coating films for gates, street lights, aluminum vehicle wheels, and the like. I have.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、[Problems to be solved by the invention]
【０００４】(1).有機質系塗膜は、特に、金属表面との
親和性が良くないため、被塗装部材がアルミ部材（アル
ミニウム製車両用ホイール等）の場合には腐蝕しやす
く、又、被塗装部材が樹脂の場合には耐候性に問題が発
生し、(1) The organic coating film has a poor affinity for a metal surface, and therefore is easily corroded when the member to be coated is an aluminum member (such as an aluminum vehicle wheel). When the member to be coated is resin, a problem occurs in weather resistance,
【０００５】また、(2).有機質系塗膜は汚れとの親和性
が良いため、汚れ、例えば、鳥の糞、油、コールタール
等の汚れが染みやすい結果、塗膜表面に付着した汚れを
落としにくく、その上、この塗膜は傷がつきやすいた
め、被塗装部材（アルミウニムウ製車両用ホイール等）
の美観が損なわれる、という不都合を有した。(2) The organic coating film has a good affinity for dirt, so that dirt such as bird droppings, oil, and coal tar is easily stained. Is difficult to remove, and the coating film is easily damaged.
Has a disadvantage that the aesthetic appearance of the camera is impaired.
【０００６】この発明の課題はかかる不都合を解消する
ことである。An object of the present invention is to eliminate such inconvenience.
【０００７】[0007]
【課題を解決するための手段】前記課題を解決するため
に、この発明に係る塗膜構造においては、被塗装部材の
表面に、有機系成分を主成分とした塗膜層を形成すると
ともにこの塗膜層の表面に無機系成分を主成分とした塗
膜層を形成した塗膜構造において、前記有機系成分を主
成分とした塗膜層が粉体塗料から形成された塗膜層であ
りかつ前記無機系成分を主成分とした塗膜層に不飽和エ
チレン性単量体の重合体又は共重合体を含有させたもの
である。In order to solve the above-mentioned problems, in a coating structure according to the present invention, a coating layer mainly composed of an organic component is formed on the surface of a member to be coated. In a coating structure in which a coating layer mainly containing an inorganic component is formed on the surface of the coating layer, the coating layer mainly containing the organic component is a coating layer formed from a powder coating. Further, a polymer or copolymer of an unsaturated ethylenic monomer is contained in a coating layer containing the inorganic component as a main component.
【０００８】なお、前記無機系成分を主成分とした塗膜
層としては、更に、コロイド状シリカとオルガノアルコ
キシシラン部分加水分解縮合物とを含ませるのがよい。It is preferable that the coating layer containing the inorganic component as a main component further contains colloidal silica and a partially hydrolyzed condensate of an organoalkoxysilane.
【０００９】[0009]
【作用】この発明に係る塗膜構造は、上記のように構成
されているため、有機系塗料を主成分とした塗膜層の欠
点は、無機系塗料を主成分とした塗膜層によって補填し
た状態において、無機系成分を主成分とした塗膜層の不
飽和エチレン性単量体の重合体又は共重合体が前記粉体
塗料から形成される有機系成分を主成分とした塗膜層の
有機系成分と架橋構造を形成し、その結果、両塗膜層の
密着性が強固になるものである。Since the coating film structure according to the present invention is constructed as described above, the drawbacks of the coating layer mainly composed of an organic paint are compensated for by the coating layer mainly composed of an inorganic paint. In this state, the polymer or copolymer of the unsaturated ethylenic monomer of the coating layer containing an inorganic component as a main component is formed from the powder coating, and the coating layer containing an organic component as a main component And a cross-linked structure is formed with the organic component, and as a result, the adhesion between the two coating layers is strengthened.
【００１０】[0010]
【実施例】この発明の実施例としてアルミウニウム製車
両用ホイール（この発明の「被塗装部材」に相当する）
を取り上げ、以下説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS As an embodiment of the present invention, an aluminum wheel for a vehicle (corresponding to the "member to be coated" of the present invention).
And will be described below.
【００１１】図１において、１は車両用ホイールＷのデ
ィスク、２はこのディスク１の外周縁に一体形成された
リムである。このディスク１およびリム２はアルミニウ
ム合金（又は、アルミニウム）によって一体鋳造されて
いる。In FIG. 1, reference numeral 1 denotes a disk of a vehicle wheel W, and reference numeral 2 denotes a rim integrally formed on an outer peripheral edge of the disk 1. The disk 1 and the rim 2 are integrally cast of an aluminum alloy (or aluminum).
【００１２】次に、図２において、３１は粉体材料から
形成される有機塗膜層（この発明の「有機系成分を主成
分とした塗膜層」に相当する）であり、ディスク１の表
面に施されている。この有機塗膜層３１を形成する粉体
材料としてはアクリル樹脂、ポリエステル樹脂、エポキ
シ樹脂、塩化ビニル樹脂、ウレタン樹脂、アミノアルキ
ド樹脂等の熱硬化性樹脂からなる粉体塗料が適してい
る。なお、ホイールＷの表面に粉体塗料から形成される
有機塗膜層を複数層（種類、成分を変えた層）設けるこ
ともできる。この場合、「粉体塗料から形成される最上
層の有機塗膜層」およびこの「粉体塗料から形成される
最上層の有機塗膜層」とホイールＷとの間に介在する介
在塗膜層である「有機塗膜層」はこの発明の「有機系成
分を主成分とした塗膜層」に相当する。なお、有機塗膜
層（介在塗膜層がある場合にはその膜厚をも含む）の膜
厚を80〜100 μｍにすると、鋳肌が十分にカバーされて
外観性が良い。そして、この膜厚が最終的には製品の表
面を均一にできることに結びつく。なお、この膜厚は粉
体を用いた場合、一度塗りで80〜100 μｍにすることが
できる。一方、溶剤を用いた場合には、一度塗りでは30
μｍが限界であるが、重ね塗りをして厚膜にすることが
できる。Next, in FIG. 2, reference numeral 31 denotes an organic coating layer formed of a powder material (corresponding to the "coating layer containing an organic component as a main component" of the present invention). It is applied to the surface. As a powder material for forming the organic coating layer 31, a powder coating made of a thermosetting resin such as an acrylic resin, a polyester resin, an epoxy resin, a vinyl chloride resin, a urethane resin, and an aminoalkyd resin is suitable. Note that a plurality of organic coating layers (layers of different types and components) formed of a powder coating may be provided on the surface of the wheel W. In this case, the “uppermost organic coating layer formed from powder paint” and the “intermediate coating layer formed between the“ uppermost organic coating layer formed from powder paint ”and wheel W The “organic coating layer” is equivalent to the “coating layer containing an organic component as a main component” in the present invention. When the thickness of the organic coating layer (including the thickness of the intervening coating layer, if included) is set to 80 to 100 μm, the casting surface is sufficiently covered and the appearance is good. Then, this film thickness ultimately leads to a uniform surface of the product. When the powder is used, the film thickness can be made 80 to 100 μm by one coating. On the other hand, when a solvent is used, 30
Although μm is the limit, it can be overcoated to make a thick film.
【００１３】また、３２は無機塗膜層（この発明の「無
機系成分を主成分とした塗膜層」に相当する）であり、
粉体塗料から形成される有機塗膜層３１の表面に施され
ている。この場合、無機塗膜層３２を施す前に粉体塗料
から形成される有機塗膜層３１の表面を修正することも
できる。この無機塗膜層３２の主成分は、オルガノアル
コキシシラン部分加水分解縮合物と不飽和エチレン性単
量体の重合体又は共重合体とを含有するものであり、さ
らに具体的にはコロイド状シリカとオルガノアルコキシ
シラン部分加水分解縮合物と不飽和エチレン性単量体の
重合体又は共重合体とを含有するものが例示される。不
飽和エチレン性単量体の重合体又は共重合体の含有量は
５〜４０重量％であり、当該不飽和エチレン性単量体を
アクリル誘導体、スチレン又は酢酸ビニルとすることが
でき、種類、成分を変えて複数層設置することもでき
る。なお、膜厚は20〜30μｍである。ここに、不飽和エ
チレン性単量体の重合体又は共重合体としてアクリル樹
脂を１５〜３０重量％含有させれば第一塗膜層３１の有
機系成分との架橋が強固になり、密着性が向上するよう
になる。Reference numeral 32 denotes an inorganic coating layer (corresponding to the “coating layer containing an inorganic component as a main component” of the present invention).
The coating is applied to the surface of an organic coating layer 31 formed of a powder coating. In this case, before applying the inorganic coating layer 32, the surface of the organic coating layer 31 formed from the powder coating can be modified. The main component of the inorganic coating layer 32 contains an organoalkoxysilane partially hydrolyzed condensate and a polymer or copolymer of an unsaturated ethylenic monomer, and more specifically, colloidal silica. And an organoalkoxysilane partially hydrolyzed condensate and a polymer or copolymer of an unsaturated ethylenic monomer. The content of the polymer or copolymer of the unsaturated ethylenic monomer is 5 to 40% by weight, and the unsaturated ethylenic monomer can be an acrylic derivative, styrene or vinyl acetate, A plurality of layers can be provided by changing the components. In addition, the film thickness is 20 to 30 μm. If the acrylic resin is contained in an amount of 15 to 30% by weight as a polymer or copolymer of an unsaturated ethylenic monomer, the crosslinking with the organic component of the first coating layer 31 becomes strong, and Will be improved.
【００１４】かかる粉体塗料から形成される有機塗膜層
３１および無機塗膜層３２は成分が相応する塗料をディ
スク２に塗布することにより形成するが、この場合の焼
成温度としては、１００℃〜２００℃が適している。The organic coating layer 31 and the inorganic coating layer 32 formed from such a powder coating are formed by applying a coating having a corresponding component to the disk 2. The firing temperature in this case is 100 ° C. ~ 200 ° C is suitable.
【００１５】[0015]
【発明の効果】この発明に係る塗膜構造は、被塗装部材
の表面に、有機系成分を主成分とした塗膜層を形成する
とともにこの塗膜層の表面に無機系成分を主成分とした
塗膜層を形成した塗膜構造において、前記有機系成分を
主成分とした塗膜層が粉体塗料から形成された塗膜層で
あり、かつ前記無機系成分を主成分とした塗膜層に不飽
和エチレン性単量体の重合体又は共重合体を含有させた
ため、有機系塗料を主成分とした塗膜層の欠点を、無機
系塗料を主成分とした塗膜層によって補填した状態にお
いて、無機系成分を主成分とした塗膜層の不飽和エチレ
ン性単量体の重合体又は共重合体が前記粉体塗料から形
成される有機系成分を主成分とした塗膜層の有機系成分
と架橋構造を形成し、その結果、両塗膜層の密着性が強
固になるものである。According to the coating structure of the present invention, a coating layer containing an organic component as a main component is formed on the surface of a member to be coated, and an inorganic component is formed as a main component on the surface of the coating layer. In the coating structure in which the formed coating layer is formed, the coating layer containing the organic component as a main component is a coating layer formed from a powder coating, and a coating film containing the inorganic component as a main component. Since the layer contained a polymer or copolymer of an unsaturated ethylenic monomer, the drawbacks of the coating layer mainly composed of an organic coating were compensated for by the coating layer mainly composed of an inorganic coating. In the state, the polymer or copolymer of the unsaturated ethylenic monomer of the coating layer containing an inorganic component as a main component is a coating layer containing an organic component as a main component formed from the powder coating. It forms a crosslinked structure with the organic component, and as a result, the adhesion of both coating layers becomes strong. .
【００１６】その結果、この塗膜構造においては、前記
粉体塗料から形成される有機系塗料を主成分とした塗膜
層と無機系塗料を主成分とした塗膜層とが剥離しにくく
なるため、有機系塗料を主成分とした塗膜層の欠点を無
機系塗料を主成分とした塗膜層によって補填できる状態
により、従来よりも長期にわたって過酷な条件の下にお
いて使用できるものである。As a result, in this coating film structure, the coating layer mainly composed of the organic paint formed from the powder coating and the coating layer mainly composed of the inorganic paint are hardly peeled off. Therefore, the film can be used under severe conditions for a longer period of time than before, because the defects of the coating film mainly composed of the organic paint can be compensated by the film layer mainly composed of the inorganic paint.
【００１７】なお、「粉体塗料から形成される有機系塗
料を主成分とした塗膜層の欠点を無機系塗料を主成分と
した塗膜層によって補填した状態」とは下記のとおりで
ある。[0017] The "state in which the defects of the coating layer mainly composed of an organic paint formed from a powder coating are compensated for by the coating layer mainly composed of an inorganic paint" is as follows. .
【００１８】この発明の塗膜構造は、厚膜化による外観
性の向上や色や塗料の種別の選択が豊富である等の粉体
塗料から形成される有機系塗料の利点を維持したまま、
第１表の試験結果（アルミニウム製車両用ホイールに対
して試験を行った）から明確なように、The coating film structure of the present invention maintains the advantages of an organic coating material formed from a powder coating material, such as an improvement in appearance by thickening the film and a wide selection of colors and types of coating materials.
As is clear from the test results in Table 1 (tested on aluminum vehicle wheels),
【００１９】(1).塗膜表面と汚れとの親和性が乏しいた
め、塗膜表面に付着した汚れを落としやすく、この結
果、アルミ部材（アルミニウム製車両用ホイール）の美
観を維持できる。(1) Since the affinity between the coating film surface and the dirt is poor, dirt adhering to the coating film surface is easily removed, and as a result, the aesthetic appearance of the aluminum member (aluminum vehicle wheel) can be maintained.
【００２０】(2).塗膜表面の硬度が大きいため、塗膜表
面に傷がつきにくく、この結果、アルミ部材（アルミニ
ウム製車両用ホイール）の美観を維持できる。(2) Since the hardness of the coating film surface is high, the coating film surface is not easily damaged, and as a result, the aesthetic appearance of the aluminum member (aluminum vehicle wheel) can be maintained.
【００２１】(3).粉体塗料から形成される有機系塗料を
下に塗ったのでホイールエッジ部のカバー性が向上す
る。(3) Since the organic paint formed from the powder paint is applied below, the coverage of the wheel edge is improved.
【００２２】第１表 Table 1
【００２３】(1).有機質系塗料としてはアクリル粉体樹
脂70％, 硬化剤12％, 添加剤18％) を使用した。(1) As the organic paint, acrylic powder resin 70%, hardener 12%, additive 18%) was used.
【００２４】(2).キャス試験はJIS に従って行った。(2). Cass test was performed according to JIS.
【００２５】(3).糸錆試験はアルミニウム合金に対して
行った。この糸錆試験は、試料にスクラッチを入れ、塩
水噴霧テスト 120時間後、大気中に 240時間放置し、ス
クラッチマークよりの糸錆発生の長さを調べた。(3) The yarn rust test was performed on an aluminum alloy. In this rust test, a sample was scratched, and after 120 hours of a salt spray test, the sample was left in the air for 240 hours to examine the length of rust generation from the scratch mark.
【００２６】(4).制動試験とは、自動車のホイールに試
験塗料を塗布し、加速制動を繰り返してブレーキパッド
の摩耗粉のホイールへの付着を観察するものである。(4) The braking test is a test in which a test paint is applied to the wheel of an automobile, and accelerated braking is repeated to observe the adhesion of abrasion powder of the brake pad to the wheel.
【００２７】(5).冷熱試験とは、試験塗料を塗布した金
属部材に対して加熱 (160 ℃) と水冷を10回繰り返して
金属部材の塗料塗布面の変化を観察するものである。(5) The cooling test is a test in which heating (160 ° C.) and water cooling are repeated 10 times with respect to the metal member to which the test paint is applied, and changes in the paint applied surface of the metal member are observed.
【００２８】(6).表中における記号の示す意味は下記の
とおりである。(6) The meanings of the symbols in the table are as follows.
【００２９】◎：極めて良、○：良、△ ：普通、
×：不良◎: extremely good, ○: good, Δ: normal,
×: defective
【図１】この発明の塗膜構造の実施例の断面図である。FIG. 1 is a sectional view of an embodiment of a coating film structure of the present invention.
【図２】図１におけるII部拡大図である。FIG. 2 is an enlarged view of a portion II in FIG.
１ ディスク（被塗装部材） 31 有機塗膜層（有機系成分を主成分とした塗膜層） 32 無機塗膜層（無機系成分を主成分とした塗膜層） 1 Disc (member to be coated) 31 Organic coating layer (coating layer mainly composed of organic components) 32 Inorganic coating layer (coating layer mainly composed of inorganic components)
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) B05D 1/00 - 7/26 B32B 27/20 B60B 3/00 ──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. 7 , DB name) B05D 1/00-7/26 B32B 27/20 B60B 3/00
Claims (3)
分とした塗膜層を形成するとともにこの塗膜層の表面に
無機系成分を主成分とした塗膜層を形成した塗膜構造に
おいて、前記有機系成分を主成分とした塗膜層が粉体塗
料から形成された塗膜層でありかつ前記無機系成分を主
成分とした塗膜層に不飽和エチレン性単量体の重合体又
は共重合体を含むことを特徴とする塗膜構造。1. A coating film in which a coating layer mainly containing an organic component is formed on the surface of a member to be coated, and a coating layer mainly containing an inorganic component is formed on the surface of the coating layer. In the structure, the coating layer mainly composed of the organic component is powder-coated.
Coating structure characterized in that a coating layer was formed and the coating layer composed mainly of the inorganic component containing a polymer or copolymer of unsaturated ethylenic monomers from fee.
系成分を主成分 とした塗膜層がオルガノアルコキシシラ
ン部分加水分解縮合物と不飽和エチ レン性単量体の重合
体又は共重合体を含むことを特徴とする。2. The coating structure according to claim 1, wherein said inorganic material is
Coating layer mainly composed of organic components
Polymerization of emissions partially hydrolyzed condensate and the unsaturated ethylene alkylene monomer
Or a copolymer or a copolymer .
いて、前記無機系成分を主成分とした塗膜層にコロイド
状シリカとオルガノアルコキシシラン部分加水分解縮合
物とを含むことを特徴とする。 3. The coating structure according to claim 1 , wherein the coating layer containing the inorganic component as a main component contains colloidal silica and a partially hydrolyzed condensate of an organoalkoxysilane. I do.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21452691A JP3338857B2 (en) | 1991-07-31 | 1991-07-31 | Coating structure |
| JP2000150651A JP3584369B2 (en) | 1991-07-31 | 2000-05-22 | Coating structure and manufacturing method |
| JP2000150577A JP3463196B2 (en) | 1991-07-31 | 2000-05-22 | Film structure and vehicle wheel film structure |
| JP2000150590A JP3488900B2 (en) | 1991-07-31 | 2000-05-22 | Coating structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21452691A JP3338857B2 (en) | 1991-07-31 | 1991-07-31 | Coating structure |
Related Child Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000150590A Division JP3488900B2 (en) | 1991-07-31 | 2000-05-22 | Coating structure |
| JP2000150577A Division JP3463196B2 (en) | 1991-07-31 | 2000-05-22 | Film structure and vehicle wheel film structure |
| JP2000150651A Division JP3584369B2 (en) | 1991-07-31 | 2000-05-22 | Coating structure and manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0531455A JPH0531455A (en) | 1993-02-09 |
| JP3338857B2 true JP3338857B2 (en) | 2002-10-28 |
Family
ID=16657186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21452691A Expired - Lifetime JP3338857B2 (en) | 1991-07-31 | 1991-07-31 | Coating structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3338857B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3305595B2 (en) | 1995-12-18 | 2002-07-22 | 新日本製鐵株式会社 | Metal plate having rust-preventive organic film, method for producing the same, and treatment liquid used therefor |
| JP2007126904A (en) * | 2005-11-04 | 2007-05-24 | Nisshin Steel Co Ltd | Kitchen sink superior in flaw resistance, staining resistance and hot water resistance |
-
1991
- 1991-07-31 JP JP21452691A patent/JP3338857B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0531455A (en) | 1993-02-09 |
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