Study on anti-resistance of various silanization pretreatment on aluminium alloys surface

J Chin Soc Corr Pro

2007, Vol. 27

Issue (3): 172-175 DOI:

Research Report

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Study on anti-resistance of various silanization pretreatment on aluminium alloys surface

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西北工业大学化工系

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Abstract In order to see about anti-corrosion of silanization pretreatment on aluminium alloys surface, YL12 Al aloys surface were treated with γ- glycidoxypropyltrimentoxysilane(GPTMS),bis- [triethoxysilylpropyl] tetrasulfide(BTSPS) and bis-1,2-(triethoxysilyl) - ethane (BTSE)by dip-coating process. GPTMS and bis - silane films layer were cured at 100 ℃ for 60min and 130℃ for 60min respectively. Corrosion resistance of various silane silanization films layer were tested with potentiodynamic scan (PDS) and electrochemical impedance spectroscopy (EIS)in 3.5mass% NaCl solution and compared with that of chromated conversion coatings. The results show that the corrosion resistance of bis - silanization film layer exceeded that of organofunctional silane, the antiresistance of BTSPS silanization film layer exceeded that of all others.

Key words: silanization pretreatment anti-resistance bis-silane

Received: 25 November 2005

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. Study on anti-resistance of various silanization pretreatment on aluminium alloys surface. J Chin Soc Corr Pro, 2007, 27(3): 172-175 .

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y2007/V27/I3/172

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