アルミニウムにおけるポリマコーティングの自己修復性防食作用

• 矢吹 彰広

  広島大学大学院工学研究院物質化学工学部門

• 奥野 弘尚

  広島大学大学院工学研究科 大学院生

書誌事項

タイトル別名

• Self-healing corrosion protective capability of polymer coatings for aluminum
• アルミニウム ニ オケル ポリマコーティング ノ ジコ シュウフクセイ ボウショク サヨウ

抄録

The self-healing corrosion protective properties of polymer coatings for aluminum were investigated. Zirconium phosphate conversion coating and polymer coating, which are various primer and top coatings with a thickness of 5 and 11 μm, were applied to the surface of pure aluminum, and after creating a defect by means of a knife-edge, a corrosion test was carried out in 0.5 mass% NaCl solution at 40°C. The polarization resistance of each coating was measured using electrochemical impedance method to evaluate the self-healing capability of coatings. The polarization resistance of scratched specimen coated polymer containing pigment increased with increasing time, resulting in high resistance. Thus, the self-healing capability of the polymer coating was recognized. The healing film formed on the scratched surface contained carbon. Analyzing component eluted from the coating, diethyl phthalate was detected. Polarization measurement of aluminum substrate in corrosive solution with the organic compound was conducted, and it was confirmed that the organic compound has the inhibiting effect against corrosion. The results showed that the organic compound was related to the formation of healing film.

収録刊行物

• 軽金属

  軽金属 61 (12), 724-728, 2011

  一般社団法人 軽金属学会

キーワード

• self-healing
• corrosion
• coating
• polymer
• zirconium

詳細情報

• CRID: 1390282681315841152
• NII論文ID: 10030515012
• NII書誌ID: AN00069773
• DOI: 10.2464/jilm.61.724
• ISSN: 18808018
• ISSN: 04515994
• NDL書誌ID: 023359814
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I023359814
• 本文言語コード: ja
• データソース種別:
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