JP2000256080A - Alc panel with inorganic coating film layer - Google Patents
Alc panel with inorganic coating film layerInfo
- Publication number
- JP2000256080A JP2000256080A JP11063039A JP6303999A JP2000256080A JP 2000256080 A JP2000256080 A JP 2000256080A JP 11063039 A JP11063039 A JP 11063039A JP 6303999 A JP6303999 A JP 6303999A JP 2000256080 A JP2000256080 A JP 2000256080A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- alc
- coating film
- alkali
- coating
- 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.)
- Pending
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、高耐候性、高耐久
性を有する無機塗料塗装ＡＬＣ（軽量気泡コンクリー
ト）パネルに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inorganic paint-coated ALC (lightweight cellular concrete) panel having high weather resistance and high durability.
【０００２】[0002]
【従来の技術】ＡＬＣの外壁は、塗装仕上げを施して使
用するが、その塗装は建設現場での吹付け塗装が一般的
である。ＡＬＣ外壁を構成するパネルを工事現場へ搬入
する事により、工期が短いという特長を有しているにも
かかわらず、工事現場での外壁塗装工程が存在すること
により、その工程が天候に左右され、総合的に工期が遅
れがちになってしまっているのが現状である。2. Description of the Related Art The outer wall of an ALC is used after applying a paint finish, and the paint is generally sprayed on a construction site. Despite the fact that the construction period of the ALC outer wall is brought into the construction site and the construction period is short, despite the fact that the construction period is short, the process is affected by the weather. However, the current situation is that the construction period is generally delayed.
【０００３】近年は、工場で最終塗装仕上げまで行った
ＡＬＣも商品化されつつあり、その動向が注目されてい
る。その中で、長期の耐久性を特徴とする無機塗料によ
る塗装（以下、無機塗装と称す）をＡＬＣに実施する研
究も進められてきたが、シロキサン結合のみの結合で形
成される無機塗装では、その塗膜形成の為に高温加熱が
必要となり、ＡＬＣ基材の耐熱以上の雰囲気温度が要求
され、基材自身に亀裂を発生させてしまう。[0003] In recent years, ALC, which has been completed in a factory until the final coating finish, is also being commercialized, and the trend is attracting attention. Among them, research on applying ALC to inorganic coatings characterized by long-term durability (hereinafter referred to as “inorganic coatings”) has been promoted, but in inorganic coatings formed only by siloxane bonds, High-temperature heating is required to form the coating film, and an ambient temperature higher than the heat resistance of the ALC substrate is required, and the substrate itself cracks.
【０００４】また、低温でのシロキサン結合を形成させ
る為に金属アルコキシド系のシリコーン化合物を使用す
ると、基材からのアルカリ溶出が反応を阻害してしまう
為、厳重なアルカリに対するシーリングを必要としてい
た。これらの問題の為に長期耐久性を有するＡＬＣ素材
に対して、それに見合うだけの耐久性を有する無機塗装
を行う事が適正と思われながら一般的に普及されるに到
ってないのが現状である。In addition, when a metal alkoxide-based silicone compound is used to form a siloxane bond at a low temperature, the alkali elution from the base material inhibits the reaction, so that strict sealing against the alkali is required. Due to these problems, it is considered that it is appropriate to apply inorganic coatings with the durability corresponding to long-term durability to ALC materials that have long-term durability, but it has not yet come into general use. It is.
【０００５】[0005]
【発明が解決しようとする課題】本発明の目的は、高耐
候性、高耐久性を有する（即ち、長期にわたりＡＬＣ基
材および塗膜に亀裂等の欠陥の生じない）ＡＬＣパネル
を提供することである。SUMMARY OF THE INVENTION It is an object of the present invention to provide an ALC panel having high weather resistance and high durability (that is, no defects such as cracks in the ALC substrate and coating film over a long period of time). It is.
【０００６】[0006]
【課題を解決するための手段】即ち本発明は、ＡＬＣ基
材表面にプライマー層、その上にフィラー層、耐アルカ
リ性無機塗料の塗膜層を設けたことを特徴とするＡＬＣ
塗装パネル、である。本発明のＡＬＣパネルにおいて最
も特徴とする点は、耐アルカリ性能を有する無機塗料の
塗膜層を設けたことである。その耐アルカリ性能を有す
る無機塗料としては、具体的には金属酸化物ゲルとアク
リルウレタンとの複合体である。That is, the present invention provides an ALC comprising a primer layer on the surface of an ALC substrate, a filler layer and a coating layer of an alkali-resistant inorganic paint on the surface.
Painted panels. The most characteristic feature of the ALC panel of the present invention is that a coating layer of an inorganic paint having alkali resistance is provided. Specifically, the inorganic coating having alkali resistance is a composite of a metal oxide gel and acrylic urethane.
【０００７】従来から知られているシラノール基に金属
アルコキシドを反応させる一般の無機塗膜を形成させる
場合には、塗膜形成過程で、高温かつ中性〜酸性の雰囲
気とする必要があった。それに対し、本発明では、金属
酸化物ゲルとアクリルウレタンとの複合体を使用するこ
とにより常温で塗膜を形成することができ、かつ、アル
カリ存在の影響を受けない為、特別なシーラーを使用す
ることなくＡＬＣに無機塗装を形成することができる。In the case of forming a conventional inorganic coating film in which a conventionally known silanol group is reacted with a metal alkoxide, a high-temperature, neutral to acidic atmosphere has to be used during the coating film formation process. On the other hand, in the present invention, a coating film can be formed at room temperature by using a composite of a metal oxide gel and acrylic urethane, and a special sealer is used because it is not affected by the presence of alkali. An inorganic coating can be formed on the ALC without performing the above.
【０００８】以下、本発明のＡＬＣ塗装パネルにおける
無機塗膜層以外の構成について詳細に説明する。本発明
においては、まずＡＬＣ基材の表面にプライマー層を設
ける。ＡＬＣ基材のピアノ線切断面に対して密着性を発
現させる為にプライマーを塗布するが、この時、プライ
マーは密着性を高める為のいわば接着剤であり、例えば
アクリルエマルジョン水溶液等が用いられる。Hereinafter, the structure other than the inorganic coating layer in the ALC coated panel of the present invention will be described in detail. In the present invention, first, a primer layer is provided on the surface of the ALC substrate. A primer is applied to the ALC base material to develop adhesion to the cut surface of the piano wire. At this time, the primer is an adhesive for improving the adhesion, for example, an aqueous acrylic emulsion solution.
【０００９】プライマー層の塗膜量は、ＡＬＣ表面を薄
く覆う程度で充分である為、樹脂エマルションが８０ｗ
ｔ％以上の濃度のものであれば５０〜２００ｇ／ｍ2 が
適当である。次に、プライマー層の上にフィラー層を設
けるが、フィラー層は、ピアノ線切断面の荒れをならす
為に塗装することから、そのピアノ線切断面の荒れ程度
により、またフィラー中の体質顔料の添加量により、そ
の塗膜量を調整する。The coating amount of the primer layer is sufficient to cover the ALC surface thinly.
If the concentration is at least t%, 50 to 200 g / m 2 is appropriate. Next, a filler layer is provided on the primer layer. Since the filler layer is applied to smooth the cut surface of the piano wire, the filler pigment is coated depending on the degree of roughness of the cut surface of the piano wire and the filler pigment in the filler. The amount of the coating film is adjusted by the amount added.
【００１０】フィラー層における体質顔料の含有量は３
０〜７０ｗｔ％であり、そのフィラー層の塗膜量は５０
０〜２０００ｇ／ｍ2 が一般的である。フィラー層は、
アクリル系、エポキシ系またはウレタン系の樹脂をエマ
ルジョンとして塗膜層を形成させたものであるが、それ
には基材からのアルカリ溶出を防ぐ性能をもたせる必要
はない。[0010] The content of the extender pigment in the filler layer is 3
0 to 70% by weight, and the coating amount of the filler layer is 50%.
0-2000 g / m < 2 > is common. The filler layer is
The coating layer is formed by using an acrylic, epoxy or urethane resin as an emulsion, but it is not necessary to have a function of preventing alkali elution from the base material.
【００１１】さらに、フィラー層の上にトップコート層
として前記した無機塗料の塗膜層を設ける。本発明にお
いては、必要に応じてフィラー層の上に着色層を設ける
ことにより光沢を強調することができてより好ましい。
またトップコートとしてクリアの無機塗料を用いて仕上
げることによっても光沢を強調することができてより好
ましい。Further, a coating layer of the above-mentioned inorganic paint is provided as a top coat layer on the filler layer. In the present invention, it is more preferable to provide a colored layer on the filler layer if necessary, so that the gloss can be enhanced.
It is more preferable that the gloss can be enhanced by finishing with a clear inorganic paint as the top coat.
【００１２】さらには、経済性の面からエナメルの無機
塗料を用い、着色層とクリア層を兼ねた１層塗装とする
ことも可能であるが、光沢低下等の外観の低下が起こっ
てしまう場合がある。前記のそれぞれの塗膜を形成させ
る方法としては、一般的に行われている方法でよいが、
常温乾燥だけでなく、ＡＬＣ基材温度が８０℃を越えな
い範囲での加熱であれば、遠赤外線、熱風循環、高周波
加熱等の手段を用いて強制乾燥を行っても良い。Further, from the viewpoint of economy, it is possible to use an enamel inorganic paint to form a one-layer coating which serves both as a coloring layer and a clear layer. There is. As a method of forming each of the above-mentioned coating films, generally used methods may be used,
As long as the heating is performed not only at room temperature but also in a range where the ALC substrate temperature does not exceed 80 ° C., forced drying may be performed using means such as far infrared rays, hot air circulation, and high frequency heating.
【００１３】[0013]
【発明実施の形態】次に、実施例および参考例によって
本発明をさらに詳細に説明する。ここで無機塗料として
使用するものはアクリル酸エステル、ポリイソシアネー
ト化合物、金属酸化物ゲルと反応触媒からなる塗料組性
物である（国際公開ＷＯ９６／３４０６３）。Now, the present invention will be described in further detail with reference to Examples and Reference Examples. Here, what is used as the inorganic paint is a paint composition comprising an acrylate, a polyisocyanate compound, a metal oxide gel and a reaction catalyst (WO 96/34063).
【００１４】[0014]
【実施例１】以下、図面を参照しながら本発明の具体的
実施例を説明する。図２に本実施例の塗膜層構成を示し
ている。通常の方法により作製されたＡＬＣパネルの表
面にプライマー層としてアクリルエマルションプライマ
ーを１００ｇ／ｍ2 、その上にフィラー層として体質顔
料６０ｗｔ％のアクリルエマルジョン系フィラーを１２
００ｇ／ｍ2 、その上に着色塗料としてアクリルウレタ
ン系塗料を１００ｇ／ｍ2 、さらにクリアの無機塗料１
００ｇ／ｍ2 を各々塗布し、２４時間の常温乾燥にて塗
膜を形成させ試験体とした。Embodiment 1 Hereinafter, a specific embodiment of the present invention will be described with reference to the drawings. FIG. 2 shows the coating layer structure of the present embodiment. 100 g / m 2 of an acrylic emulsion primer as a primer layer on the surface of an ALC panel produced by an ordinary method, and an acrylic emulsion-based filler of extender 60 wt% of 12 wt.
00g / m 2, 100g / m 2 of acrylic urethane paint as colored coating thereon, further clear of inorganic coating 1
00 g / m 2 was applied, and dried at room temperature for 24 hours to form a coating film, which was used as a test specimen.
【００１５】[0015]
【実施例２】前記実施例１における着色層を省略し、無
機塗料として着色されたエナメル無機塗料を１００ｇ／
ｍ2 塗布し、２４時間の常温乾燥にて塗膜を形成させ試
験体とした。Example 2 The colored layer in Example 1 was omitted, and 100 g / color of the colored enamel inorganic paint was used as the inorganic paint.
m 2 was applied and dried at room temperature for 24 hours to form a coating film, which was used as a test specimen.
【００１６】[0016]
【比較例１】前記の実施例２と同様にフィラー塗布まで
行い、トップコートとして焼き付け型の無機塗料を使用
し、雰囲気温度１２０℃、風速１ｍ／秒の熱風循環乾燥
機で１時間静置して試験体を得た。COMPARATIVE EXAMPLE 1 Filler application was performed in the same manner as in Example 2 above, and a baking type inorganic paint was used as a top coat, and was left standing for 1 hour in a hot air circulating dryer at an atmospheric temperature of 120 ° C. and a wind speed of 1 m / sec. To obtain a test body.
【００１７】[0017]
【比較例２】前記の実施例２と同様にフィラー塗布まで
行い、トップコートのみを低温焼き付け型の金属アルコ
キシド系無機塗料を使用し、雰囲気温度１００℃、風速
１ｍ／秒の熱風循環乾燥機で３０時間静置して試験体を
得た。これらの試験体（前記の実施例および比較例）の
評価結果を表１に示す。COMPARATIVE EXAMPLE 2 Filler coating was performed in the same manner as in Example 2 described above, and only the top coat was formed using a low-temperature baking type metal alkoxide-based inorganic coating material. The specimen was left standing for 30 hours. Table 1 shows the evaluation results of these test pieces (Examples and Comparative Examples).
【００１８】[0018]
【表１】 [Table 1]
【００１９】[0019]
【発明の効果】本発明のＡＬＣ無機塗装パネルにおいて
は、耐アルカリ性を有する無機塗料を使用するためにア
ルカリに対するシーラー処理が不要であり、方法的には
常温で塗膜形成ができるという効果を有し、得られたパ
ネルは高耐候性・高耐久性を有するものである。The ALC inorganic coating panel of the present invention does not require a sealer treatment against alkali since an inorganic coating having alkali resistance is used, and has an effect that a coating film can be formed at room temperature. The obtained panel has high weather resistance and high durability.
【図１】本発明のＡＬＣ塗装パネルのピアノ線切断面模
式図。FIG. 1 is a schematic diagram of a piano wire cut surface of an ALC painted panel of the present invention.
【図２】本発明のＡＬＣ塗装パネルの塗膜構成を表した
図。FIG. 2 is a diagram showing a coating film configuration of an ALC coated panel of the present invention.
１ ピアノ線切断面 ２ ＡＬＣ気泡面 ３ 無機塗装（クリア） ４ 着色層 ５ フィラー層 ６ プライマー ７ ＡＬＣ基材 DESCRIPTION OF SYMBOLS 1 Piano wire cut surface 2 ALC bubble surface 3 Inorganic paint (clear) 4 Colored layer 5 Filler layer 6 Primer 7 ALC base material
Claims (3)
にフィラー層、耐アルカリ性無機塗料の塗膜層を設けた
ことを特徴とするＡＬＣ塗装パネル。1. An ALC coated panel comprising a primer layer on the surface of an ALC substrate, a filler layer thereon, and a coating layer of an alkali-resistant inorganic paint.
とアクリルウレタンとの複合体であることを特徴とする
請求項１記載のＡＬＣ塗装パネル。2. The ALC coated panel according to claim 1, wherein the alkali-resistant inorganic coating is a composite of a metal oxide gel and acrylic urethane.
膜層との間に着色層を設けたことを特徴とする請求項１
または２記載のＡＬＣ塗装パネル。3. A color layer is provided between the filler layer and the coating layer of the alkali-resistant inorganic paint.
Or the ALC coated panel according to 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11063039A JP2000256080A (en) | 1999-03-10 | 1999-03-10 | Alc panel with inorganic coating film layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11063039A JP2000256080A (en) | 1999-03-10 | 1999-03-10 | Alc panel with inorganic coating film layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000256080A true JP2000256080A (en) | 2000-09-19 |
Family
ID=13217806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11063039A Pending JP2000256080A (en) | 1999-03-10 | 1999-03-10 | Alc panel with inorganic coating film layer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000256080A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007331974A (en) * | 2006-06-14 | 2007-12-27 | Asahi Kasei Construction Materials Co Ltd | Surface-treating method of autoclaved lightweight cellular concrete panel |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996034063A1 (en) * | 1995-04-28 | 1996-10-31 | Nof Corporation | Coating composition, process for preparing the composition, and process for preparing dispersion of inorganic oxide sol |
| JPH101377A (en) * | 1996-06-13 | 1998-01-06 | Onoda Autoclaved Light Weight Concrete Co Ltd | Surface treatment of lightweight cellular concrete panel |
| JPH1121185A (en) * | 1997-06-30 | 1999-01-26 | Sk Kaken Co Ltd | Production of alc mirror finished and coated panel |
-
1999
- 1999-03-10 JP JP11063039A patent/JP2000256080A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996034063A1 (en) * | 1995-04-28 | 1996-10-31 | Nof Corporation | Coating composition, process for preparing the composition, and process for preparing dispersion of inorganic oxide sol |
| JPH101377A (en) * | 1996-06-13 | 1998-01-06 | Onoda Autoclaved Light Weight Concrete Co Ltd | Surface treatment of lightweight cellular concrete panel |
| JPH1121185A (en) * | 1997-06-30 | 1999-01-26 | Sk Kaken Co Ltd | Production of alc mirror finished and coated panel |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007331974A (en) * | 2006-06-14 | 2007-12-27 | Asahi Kasei Construction Materials Co Ltd | Surface-treating method of autoclaved lightweight cellular concrete panel |
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