Development of novel surface treatments for corrosion protection of aluminum: self-repairing coatings

被引：8

作者：

Chiba, Makoto ^{[1
]}

Yamada, Chinami ^{[1
]}

Okuyama, Haruka ^{[1
]}

Sugiura, Minori ^{[1
]}

Pletincx, Sven ^{[2
]}

Verbruggen, Hilke ^{[2
]}

Hyono, Atsushi ^{[1
]}

De Graeve, Iris ^{[2
]}

Terryn, Herman ^{[2
]}

Takahashi, Hideaki ^{[1
]}

机构：

[1] Asahikawa Coll, Natl Inst Technol, Asahikawa, Hokkaido 0718142, Japan

[2] Vrije Univ Brussel, Dept Mat & Chem, Res Grp Electrochem & Surface Engn, B-1050 Brussels, Belgium

来源：

CORROSION REVIEWS | 2018年 / 36卷 / 01期

关键词：

aluminum; corrosion; microcapsule; polyurethane; self-repairing; HEALING COATINGS; INHIBITION;

D O I：

10.1515/corrrev-2017-0056

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

070208 [无线电物理];

摘要：

Two types of self-repairing coatings for the protection of Al and its alloys are reviewed: (1) organic coatings with capsules containing repairing agent and (2) porous anodic oxide films with inhibitor solution stored in the pores of the oxide film. First, polyurethane microcapsules containing liquid surface-repairing agents were synthesized and polyurethane coating with the capsules was painted on Al alloy specimens. After mechanical damage to the coating, self-repairing occurred by the reaction of water vapor in the air with the repairing agents released from the capsules. Second, porous-type anodic oxide films were formed on Al alloys, and the pores of the anodic oxide films were filled with inhibitor solutions, followed by application of a covering polyurethane layer. Inhibitors released from the pores efficiently protected the Al alloy substrate from corrosion arising from induced mechanical damage.

引用

页码：55 / 64

页数：10

共 17 条

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