JP5568191B1 - 塗装鋼板および外装建材 - Google Patents
塗装鋼板および外装建材 Download PDFInfo
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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
- C09D5/082—Anti-corrosive paints characterised by the anti-corrosive pigment
- C09D5/086—Organic or non-macromolecular compounds
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D7/61—Additives non-macromolecular inorganic
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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Abstract
【解決手段】塗装鋼板は、鋼板と、前記鋼板の上に配置された、防錆顔料と一次粒子からなる骨材とを含む下塗り塗膜と、前記下塗り塗膜の上に配置された上塗り塗膜と、を有する。前記防錆顔料は、2価のスズ塩、3価のバナジウム塩、4価のバナジウム塩、4価のモリブデン塩、オキシカルボン酸塩、アスコルビン酸、亜リン酸塩および次亜リン酸塩からなる群から選択される1種または2種以上の化合物である。
【選択図】なし
Description
[2]前記骨材は、以下の式(1)および式(2)を満たす、[1]に記載の塗装鋼板。
D10≧0.6T …(1)
D90<2.0T …(2)
[ここで、D10は、個数基準の累積粒度分布における前記骨材の10%粒子径(μm)である。D90は、個数基準の累積粒度分布における前記骨材の90%粒子径(μm)である。Tは、前記下塗り塗膜における前記骨材が存在しない部分の膜厚(μm)である。]
[3]前記下塗り塗膜の固形分に対する前記骨材の割合は、1体積%以上かつ10体積%未満である、[1]または[2]に記載の塗装鋼板。
[4]前記鋼板は、クロムフリーの化成処理が施されている、[1]〜[3]のいずれか一項に記載の塗装鋼板。
[5][1]〜[4]のいずれか一項に記載の塗装鋼板を含む外装建材。
塗装原板となる鋼板の種類は、特に限定されない。塗装原板の例には、冷延鋼板、亜鉛めっき鋼板、Zn−Al合金めっき鋼板、Zn−Al−Mg合金めっき鋼板、アルミニウムめっき鋼板、ステンレス鋼板(オーステナイト系、マルテンサイト系、フェライト系、フェライト・マルテンサイト二相系を含む)などが含まれる。耐食性、軽量化および対費用効果の観点からは、塗装原板は、溶融55%Al―Zn合金めっき鋼板であることが好ましい。鋼板は、脱脂や酸洗などの公知の塗装前処理が施されていてもよい。鋼板の板厚は、特に限定されず、塗装鋼板の用途に応じて適宜設定されうる。たとえば、鋼板の板厚は、0.1〜2mm程度である。
下塗り塗膜は、鋼板または化成処理皮膜の表面に形成されている。下塗り塗膜は、防錆顔料および骨材を含み、塗装鋼板の耐食性や塗膜密着性(耐傷付き性)などを向上させる。
D10≧0.6T …(1)
D90<2.0T …(2)
上塗り塗膜は、下塗り塗膜の上に形成されている。上塗り塗膜は、塗装鋼板の意匠性や耐食性などを向上させる。
本発明に係る塗装鋼板は、下塗り塗膜および上塗り塗膜が形成された面の反対側の面にも塗膜(裏面塗膜)を有していてもよい。裏面塗膜は、1コート構成であってもよいし、2コート構成であってもよい。また、裏面塗膜を構成する樹脂の種類や、顔料の種類なども特に限定されない。たとえば、公知の塗料を公知の方法で塗布することで、裏面塗膜を形成することができる。
本発明に係る塗装鋼板は、下塗り塗膜に溶出しやすい防錆顔料を含むため、塗装鋼板の端面や曲げ加工部などの鋼素地露出部における赤錆の発生を防止することができる。また、本発明に係る塗装鋼板は、下塗り塗膜に一次粒子からなる骨材を含むため、防錆顔料の過度の溶出を防止しつつ、耐傷付き性に優れている。すなわち、本発明に係る塗装鋼板は、短期および長期の耐食性、ならびに耐傷付き性に優れている。したがって、本発明に係る塗装鋼板は、例えば外気に露出し、かつ太陽光に照射されうる部分に使用される、建築物の外装建材として好適である。
塗装原板として、溶融55%Al−Znめっき鋼板(基材:SPCC、両面めっき付着量:150g/m2)を準備した。塗装原板の表面をアルカリ脱脂した後、塗布型のクロムフリー化成処理液(パルコートCT−E200;日本パーカライジング株式会社)を用いて化成処理を施した。
(1)耐食性試験
各塗装鋼板からせん断加工により板材を切り出し、2T曲げ加工を行うことで試験片を準備した。この試験片には切断端面および曲げ加工部が存在しており、それらの箇所で鋼素地およびめっき金属が露出している。
塗装鋼板の取り扱い時および施工時における傷付きを想定して、クレメンス型引掻き硬度試験機を用いて耐傷付き性試験を行った。各塗装鋼板からせん断加工により2枚の板材(評価用板材および引掻用板材)を切り出した。水平に配置された評価用板材の表面に対して45°の傾斜となるように、引掻用板材を評価用板材の上に設置した。引掻用板材に所定の荷重を加えた状態で、引掻用板材で評価用板材の塗膜を引っ掻き、めっき層が見えたときの最小の荷重を評価値として記録した。評価値が1000g以上の場合を「◎」、800g以上1000g未満の場合を「○」、500g以上800g未満の場合を「△」、500g未満の場合を「×」と評価した。「◎」、「○」または「△」であれば、その塗装鋼板は、必要な耐傷付き性を有しているといえる。
各塗装鋼板の耐食性試験および耐傷付き性試験の評価結果を表3に示す。
Claims (4)
- 鋼板と、
前記鋼板の上に配置された、防錆顔料と一次粒子である骨材とを含み、かつ細孔粒子を含まない下塗り塗膜と、
前記下塗り塗膜の上に配置された上塗り塗膜と、
を有し、
前記防錆顔料は、2価のスズ塩、3価のバナジウム塩、4価のバナジウム塩、4価のモリブデン塩、オキシカルボン酸塩、アスコルビン酸、亜リン酸塩および次亜リン酸塩からなる群から選択される1種または2種以上の化合物であり、
前記骨材は、以下の式(1)および式(2)を満たす、
塗装鋼板。
D 10 ≧0.6T …(1)
D 90 <2.0T …(2)
[ここで、D 10 は、個数基準の累積粒度分布における前記骨材の10%粒子径(μm)である。D 90 は、個数基準の累積粒度分布における前記骨材の90%粒子径(μm)である。Tは、前記下塗り塗膜における前記骨材が存在しない部分の膜厚(μm)である。] - 前記下塗り塗膜の固形分に対する前記骨材の割合は、1体積%以上かつ10体積%未満である、請求項1に記載の塗装鋼板。
- 前記鋼板は、クロムフリーの化成処理が施されている、請求項1または請求項2に記載の塗装鋼板。
- 請求項1〜3のいずれか一項に記載の塗装鋼板を含む外装建材。
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014056502A JP5568191B1 (ja) | 2014-03-19 | 2014-03-19 | 塗装鋼板および外装建材 |
| US15/124,545 US9765223B2 (en) | 2014-03-19 | 2014-03-24 | Coated steel sheet and exterior building material |
| KR1020167023242A KR101725231B1 (ko) | 2014-03-19 | 2014-03-24 | 도장 강판 및 외장 건재 |
| CN201480077100.2A CN106132697B (zh) | 2014-03-19 | 2014-03-24 | 涂装钢板及外装建材 |
| PCT/JP2014/001666 WO2015140837A1 (ja) | 2014-03-19 | 2014-03-24 | 塗装鋼板および外装建材 |
| RU2016140857A RU2635583C1 (ru) | 2014-03-19 | 2014-03-24 | Стальной лист с покрытием и конструкционный материал для наружного использования |
| EP14886591.8A EP3121001A4 (en) | 2014-03-19 | 2014-03-24 | Coated steel sheet and exterior building material |
| TW104108703A TWI558545B (zh) | 2014-03-19 | 2015-03-19 | 塗裝鋼板及外裝建材 |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014056502A JP5568191B1 (ja) | 2014-03-19 | 2014-03-19 | 塗装鋼板および外装建材 |
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| Publication Number | Publication Date |
|---|---|
| JP5568191B1 true JP5568191B1 (ja) | 2014-08-06 |
| JP2015178225A JP2015178225A (ja) | 2015-10-08 |
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| JP2014056502A Active JP5568191B1 (ja) | 2014-03-19 | 2014-03-19 | 塗装鋼板および外装建材 |
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| Country | Link |
|---|---|
| US (1) | US9765223B2 (ja) |
| EP (1) | EP3121001A4 (ja) |
| JP (1) | JP5568191B1 (ja) |
| KR (1) | KR101725231B1 (ja) |
| CN (1) | CN106132697B (ja) |
| RU (1) | RU2635583C1 (ja) |
| TW (1) | TWI558545B (ja) |
| WO (1) | WO2015140837A1 (ja) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016052661A1 (ja) * | 2014-09-30 | 2016-04-07 | 新日鐵住金株式会社 | 低温走行環境での防錆性に優れる自動車用塗装金属板 |
| US20170101545A1 (en) * | 2014-03-24 | 2017-04-13 | Nisshin Steel Co., Ltd. | Coated metal plate and exterior building material |
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| JP6323825B1 (ja) * | 2017-11-27 | 2018-05-16 | 有限会社カオル | 紙粉除去方法 |
| JP7094864B2 (ja) * | 2017-12-27 | 2022-07-04 | 日鉄鋼板株式会社 | 塗装金属板 |
| CN108912995B (zh) * | 2018-07-25 | 2020-10-20 | 江西恒毅科技有限公司 | 一种环保型水性双组份聚氨酯防腐面漆及其制备方法 |
| JP7500924B2 (ja) * | 2019-07-04 | 2024-06-18 | Toppanホールディングス株式会社 | プリント鋼板 |
| CN115233096B (zh) * | 2022-07-13 | 2023-01-31 | 首钢集团有限公司 | 一种冷轧钢及其制备方法 |
| CN117777795A (zh) * | 2023-12-01 | 2024-03-29 | 麦达可尔(湖北)工业有限公司 | 一种基于喷涂防护用的水性钢铁防锈剂及制备方法 |
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- 2014-03-24 CN CN201480077100.2A patent/CN106132697B/zh active Active
- 2014-03-24 US US15/124,545 patent/US9765223B2/en active Active
- 2014-03-24 WO PCT/JP2014/001666 patent/WO2015140837A1/ja not_active Ceased
- 2014-03-24 RU RU2016140857A patent/RU2635583C1/ru active
- 2014-03-24 KR KR1020167023242A patent/KR101725231B1/ko active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20170101545A1 (en) * | 2014-03-24 | 2017-04-13 | Nisshin Steel Co., Ltd. | Coated metal plate and exterior building material |
| US10077367B2 (en) * | 2014-03-24 | 2018-09-18 | Nisshin Steel Co., Ltd. | Coated metal plate and exterior building material |
| WO2016052661A1 (ja) * | 2014-09-30 | 2016-04-07 | 新日鐵住金株式会社 | 低温走行環境での防錆性に優れる自動車用塗装金属板 |
| JPWO2016052661A1 (ja) * | 2014-09-30 | 2017-07-20 | 新日鐵住金株式会社 | 低温走行環境での防錆性に優れる自動車用塗装金属板 |
| US10913860B2 (en) | 2014-09-30 | 2021-02-09 | Nippon Steel Corporation | Coated metal sheet for automobile excellent in rust resistance in low temperature running environments |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015140837A1 (ja) | 2015-09-24 |
| KR101725231B1 (ko) | 2017-04-10 |
| US20170015837A1 (en) | 2017-01-19 |
| KR20160106764A (ko) | 2016-09-12 |
| CN106132697B (zh) | 2017-12-05 |
| US9765223B2 (en) | 2017-09-19 |
| EP3121001A4 (en) | 2017-08-09 |
| TWI558545B (zh) | 2016-11-21 |
| JP2015178225A (ja) | 2015-10-08 |
| EP3121001A1 (en) | 2017-01-25 |
| RU2635583C1 (ru) | 2017-11-14 |
| CN106132697A (zh) | 2016-11-16 |
| TW201536538A (zh) | 2015-10-01 |
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