JP6479837B2 - 2成分コーティング組成物、及びそれから製造される高耐浸食性コーティング - Google Patents
2成分コーティング組成物、及びそれから製造される高耐浸食性コーティング Download PDFInfo
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Description
(1)
(A)少なくとも1種のポリカーボネートジオール、
(B)少なくとも1種のポリアスパラギン酸エステル、及び
(C)少なくとも1種の有機シランで改質された少なくとも1種の充填剤
を含む塗料ベース成分
並びに
(2)
(D)少なくとも1種のヘキサメチレンジイソシアネートイソシアヌレートであって、脂肪族ポリエステル基を含み、イソシアネート含有量が5%〜23%であるヘキサメチレンジイソシアネートイソシアヌレート
を含む硬化剤成分
を含むことを特徴とする2成分コーティング組成物である。
R5は、6〜24個の炭素原子、好ましくは6〜16個の炭素原子を有する2価のアルキレンラジカルである)によって示される。
X4−n−mSi−Rn(−A−B)m (V)
(式中、
X=OH、ハロゲン、アルコキシ、より特には、メトキシ、及びエトキシ、アリールオキシであり、
R=アルキル、好ましくは、C1〜C12アルキル、フェニル、又はHであり
A=2価の有機ラジカル、より特には、2価のアルキレンラジカル、好ましくは、C1〜C6アルキレン、より特には、C1〜C3アルキレンであり、
B=アミノ、ヒドロキシル、エポキシ、エポキシプロピルオキシ、ヒドロキシアルキル、アセトキシ、イソシアネート、アクリロイルオキシ、メタクリロイルオキシ、イミダゾール、ウレイド、ビニル基であり、
n、m=0、1、2、又は3であり、かつ、n+m≦3、好ましくは、1≦n+m≦3である)によって示されてもよい。
(1)塗料系成分においては、
(A)5〜30質量%の少なくとも1種のポリカーボネートジオール、
(B)5〜30質量%の少なくとも1種のポリアスパラギン酸エステル、及び
(C)5〜25質量%の少なくとも1種の、少なくとも1種の有機シランで改質された充填剤、及び
(2)硬化剤成分においては、
(D)20〜60質量%の、脂肪族ポリエステル基を含み、イソシアネート含有量が5〜23%である少なくとも1種のヘキサメチレンジイソシアネートイソシアヌレート
を含み、
上述の質量の数値は、それぞれの場合、コーティング組成物の合計質量に基づいている。
1.1 概論
耐浸食性を実験室的に測定するために、一般的に、様々な装置を使用することができる。その装置によって、浸食用のコーティングされた基材を、浸食媒体中を移動させるか、又はその基材を固定し、浸食媒体を、その周りに流すかのいずれかである。固定した試験片を、例えば、高圧水ジェット技術によって試験することができる。その技術は、例えば、ウォータージェットカッティング(water jet cutting)に使用されている。浸食作用は、水圧、加工物(workpiece)からの距離、並びにノズルの種類及び大きさによって制御される。その作用は、砂、コランダム、又はシリコンカーバイドを同時に使用することによって更に強められ得る。考えられるのは、サンドブラスト、又は蒸気ブラストであり、その場合、一般的な圧力、ノズルサイズ、加工物からの距離を、同様に、使用して、浸食作用を変化させ、現実的な条件に適合させてもよい。
実施例の一部として、耐雨浸食性について、標準規格ASTM G73に準じて試験した。その試験を、室内型雨浸食試験装置で行った。試験片を、液滴のカーテンを通って、一定の時間インターバル(15分)、及び一定の速度(140m/s)で回転させる。適用される流量は、同様に、雨量を一定に保持する(30l/h)。適用される“雨”の液滴の大きさは、平均して5〜6mmである。試験を20〜25℃の温度で行う。評価方法は、視覚的方法である。耐浸食性は、基材が最初に透けて見えるのにかかる時間に対応する。
コーティング組成物の塗料系成分、及び硬化剤成分を、それぞれの成分を混合し、溶解器の中で、それらを完全に混合することによって製造した(表1)。
Claims (15)
- 2成分コーティング組成物であって、
(1)
(A)少なくとも1種のポリカーボネートジオール、
(B)少なくとも1種のポリアスパラギン酸エステル、及び
(C)少なくとも1種の、少なくとも1種の有機シランで改質された充填剤
を含む塗料ベース成分
並びに
(2)
(D)脂肪族ポリエステル基を含み、イソシアネート含有量が5%〜23%である少なくとも1種のヘキサメチレンジイソシアネートイソシアヌレート
を含む硬化剤成分
を含むことを特徴とする2成分コーティング組成物。 - 前記少なくとも1種のポリカーボネートジオール(A)が、50〜500mgKOH/gのOH価を有することを特徴とする請求項1に記載の2成分コーティング組成物。
- 前記少なくとも1種のポリカーボネートジオール(A)が、脂肪族、かつ直鎖状ポリカーボネートジオールであることを特徴とする請求項1又は2に記載の2成分コーティング組成物。
- 前記少なくとも1種のポリアスパラギン酸エステル(B)が、120〜300mgKOH/gのアミン価を有することを特徴とする請求項1〜3のいずれか1項に記載の2成分コーティング組成物。
- 前記少なくとも1種のポリアスパラギン酸エステル(B)が脂肪族であることを特徴とする請求項1〜4のいずれか1項に記載の2成分コーティング組成物。
- 前記少なくとも1種の、少なくとも1種の有機シランで改質された充填剤(C)が、少なくとも1種の有機シランで改質されたシリケートであることを特徴とする請求項1〜5のいずれか1項に記載の2成分コーティング組成物。
- 前記少なくとも1種の、少なくとも1種の有機シランで改質された充填剤(C)が、無機充填剤を、式(V)
X4−n−mSi−Rn(−A−B)m (V)
(式中、
X=OH、ハロゲン、アルコキシ、アリールオキシであり、
R=アルキル、フェニル、又はHであり、
A=2価の有機基であり、
B=アミノ、ヒドロキシル、エポキシ、エポキシプロピルオキシ、ヒドロキシアルキル、アセトキシ、イソシアネート、アクリロイルオキシ、メタクリロイルオキシ、イミダゾール、ウレイド、ビニル基であり、
n、m=0、1、2、又は3、かつ、n+m≦3。)
の有機シランで改質することによって製造されることを特徴とする請求項1〜6のいずれか1項に記載の2成分コーティング組成物。 - 前記少なくとも1種の、脂肪族ポリエステル基を含むヘキサメチレンジイソシアネートイソシアヌレートが、コーティング組成物中に存在するポリイソシアネートの合計量に対して、少なくとも50質量%のフラクションで存在することを特徴とする請求項1〜7のいずれか1項に記載の2成分コーティング組成物。
- 請求項1〜8のいずれか1項に記載のコーティング組成物を、基材に塗布することを含むことを特徴とする基材上にコーティングを製造する方法。
- 塗布することによって製造される前記コーティングを、80℃以下の温度で硬化させることを特徴とする請求項9に記載の製造方法。
- 前記基材が、金属製基材、又はプラスチック製基材であることを特徴とする請求項9又は10に記載の製造方法。
- 請求項9〜11のいずれか1項に記載の製造方法によって製造されることを特徴とするコーティング。
- 請求項12に記載のコーティングを、トップコートとして含むことを特徴とする多層コーティング。
- 請求項12に記載のコーティング、及び/又は請求項13に記載の多層コーティングによってコーティングされたことを特徴とする基材。
- 基材の耐浸食性を向上させるための請求項13に記載の多層コーティングの使用方法。
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DK3464487T3 (da) | 2016-05-31 | 2020-06-22 | Akzo Nobel Coatings Int Bv | To-komponent-spartelmasse, fremgangsmåde til belægning af et underlag med en sådan spartelmasse, underlag belagt med en sådan spartelmasse og anvendelse af en sådan spartelmasse til forbedring af erosionsbestanddighed |
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WO2018178718A1 (en) | 2017-03-30 | 2018-10-04 | DFS Composites Limited | Coating |
CN107793912B (zh) * | 2017-11-09 | 2019-12-27 | 中昊北方涂料工业研究设计院有限公司 | 用于飞机发动机反推外壳体的耐雨蚀涂料及其制备 |
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CA2935581A1 (en) | 2015-08-20 |
JP2017511397A (ja) | 2017-04-20 |
EP3105273A1 (de) | 2016-12-21 |
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BR112016016094A2 (ja) | 2017-08-08 |
US10370559B2 (en) | 2019-08-06 |
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