高速列车用铝合金环氧底漆的腐蚀行为和湿热老化机理研究

李丽, 李善文, 史洪微, 梁国平, 李春霖, 孙禹, 秦晋, 王伟, 韩恩厚

Corrosion Behavior and Hydrothermal Aging Mechanism of Epoxy Primer on Al-alloy for High-speed Train

LI Li, LI Shanwen, SHI Hongwei, LIANG Guoping, LI Chunlin, SUN Yu, QIN Jin, WANG Wei, HAN En-Hou

表2 环氧树脂中主要官能团的FTIR峰

Table 2 FTIR peaks of main functional groups in epoxy resin

Vibration mode of functional groups Vibration frequency / cm-1 O-H stretching N-H stretching 3296 Asymmetric -CH2 stretching 2923 Symmetric -CH2 stretching 2852 C=O stretching 1720 C=O stretching in amide 1642 C=C stretching in benzene ring 1606、1507、1181 C=C stretching 1582 -CH3 bending 1456 C-N stretching 1296 Asymmetric C-O-φ stretching 1237 (φ represents benzene ring) Symmetric C-O-φ stretching 1034 C-O-C stretching 1011 Para-substituted of benzene ring stretching in bisphenol A structure 879、826