The effect of aluminium alloy secondary phases on aniline-based silane protection capacity
The effect of aluminium alloy secondary phases on aniline-based silane protection capacity
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DOI：
10.1016/j.corsci.2012.05.028
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发表时间：
2012-10
影响因子：
8.3
通讯作者：
M. Trueba;S. Trasatti;D. Flamini
中科院分区：
文献类型：
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作者：
M. Trueba;S. Trasatti;D. Flamini
通过简单的程序，用 N-(3-三甲氧基甲硅烷基丙基)苯胺 (AnSi) 处理具有高金属间相含量的商用锻造铝合金，即 AA5083-H111、AA2024-T3 和 AA7075-T6。表征研究和腐蚀实验表明，混合膜的保护能力以复杂的方式与与铝基体成分相关的大分子网络结构相关。然而，大多数情况表明，在混合膜内的苯胺单元的帮助下，缓冲效应和电耦合增强了屏障保护。结果总体表明，通过在分子水平上组合导电聚合物单体和硅烷官能团，对铝合金腐蚀具有协同效应。
Commercial wrought Al alloys with high content of intermetallic phases, namely, AA5083-H111, AA2024-T3 and AA7075-T6, were treated with N-(3-trimethoxysilylpropyl) aniline (AnSi) by a simple procedure. Characterization studies and corrosion experiments indicate that the hybrid film protection capacity is related in a complex way to the macromolecular network structure linked to the Al substrate composition. Nevertheless, barrier protection enhanced by a buffer effect and galvanic coupling, as aided by aniline units within the hybrid film, is indicated mostly. Results overall demonstrate synergistic effect against Al alloy corrosion by combining at a molecular level monomers of conducting polymers and silane functionalities.