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Đánh giá khả năng bảo vệ thép của lớp phủ polyurea đi từ aspartic este gốc 4,4′-metylenbis-(2-metylcyclohexylamin)

Nguyễn Hữu Niếu, Phan Minh Trí, Nguyễn Đắc Thành, Đoàn Thị Yến Oanh


An aspartic ester was synthesized from 4,4'-methylenebis (2-methylcyclohexylamine), diethyl maleate and mono-epoxy. The method of synthesis, properties and structure of this material has been studied and published [1]. Aspartic ester mixed with additives to produce a 2-component polyurea coating system. Polyurea coating from aspartic ester cured by Desmodur N 3600 undergoes accelerated tests of environmental degradation by salt-fog and Q-sun. The metal protection capacity of the polyurea coating was evaluated through image, mechanical properties and electrochemical impedance before and after environmental acceleration.

Keywords. Polyurea, aspartic ester, metal coating, coating protection.


Polyurea, aspartic ester, metal coating, coating protection


Phan Minh Trí và cộng sự. Nghiên cứu tổng hợp Aspartic ete từ diamine 4,4′-methylenebis(2-methylcyclohexylamine) và dimethyl maleate ứng dụng trong hệ sơn polyurea, Tạp chí Hóa học, 54(6e1), 108-114 (2016).

Dudley J. Primeaux II. Polyurea Elastomer Technology: History, Chemistry & Basic Formulating Techniques, Primeaux Associates LLC, 1-20 (2004).

Edward P. Squiller, Kurt E. Best. Polyaspartics for Corrosion Protection Applications, Development Scientist Bayer Material Science, LLC Pittsburgh, Pennsylvania, 15205 (2002).

Richard Himmelwright, David W. Preston, Tom Wunderlin. Polyaspartic/Polyurea-A Revolutionary Coating Technology, Advanced resin coatings (2008).

Carl Angeloff, Edward P. Squiller, Kurt E. Best. Two Component Aliphatic Polyurea Coatings for High Productivity Applications, Bayer Corporation, 42-47 (2002).

Wicks, Douglas A., and Philip E. Yeske. Amine chemistries for isocyanate-based coatings, Progress in organic coatings, 30(4), 265-270 (1997).

Huang, Wei Bo, et al. Study on mechanical properties aging of spray pure polyurea for hydraulic concrete protection, Advanced Materials Research, 374, Trans Tech Publications (2012).

Huỳnh Lê Huy Cường et al. Study on environmental aging of polyurea topcoats, Tạp chí Hóa học, 54(6e1), 254-258 (2016).

Nguyễn Thị Lê Hiền. Kỹ thuật tổng trở điện hóa ứng dụng trong đánh giá khả năng bảo vệ chống ăn mòn của các lớp phủ hữu cơ. Tạp chí Dầu khí, 5 (2013).

Subrahmanya Shreepathi et al. Service life prediction of organic coatings: electrochemical

impedance spectroscopy vs actual service life. Coating technology, 8(2), 191-200 (2010).

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