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等:自缓蚀环氧结构控制及海洋环境防腐性能研究



                 (Ω·cm 2 )                                      (Ω·cm 2 )            g   (°)




                     /×10 5                       lg   /                       -相位角/






                           ×10( ·cm)
                                                                                           lg(f/Hz)
                                                             lg(f/Hz)
                               5
                                    2
                           /

                        (a)—Nyquist曲线                     (b)—Bode图                      (c)—相位角
                                              ?         ?         ?        ?
                                           图6 环氧涂层在 3. 5%NaCl中  60 d的阻抗谱
                                   Fig. 6  EIS results of epoxy coating after immersed in 3. 5%NaCl for 60 days
             现为较差的防腐性能。但整体而言,含有二氮芴结                                  cerium-doped  Pb-Co  alloy  coatings  in  seawater[J].
             构的自缓蚀环氧涂层的防腐性能高于不含二氮芴结                                  Corrosion Science,2024,227:111777.
             构的环氧涂层防腐性能。                                        [ 3 ] PARHIZKAR  N,RAMEZANZADEH  B,SHAHRABI  T.
                                                                     Corrosion  protection  and  adhesion  properties  of  the  epoxy
                 从图 6(c)相位角图也可以看出,具有最大低频
                                                                     coating applied on the steel substrate pre-treated by a sol-
             阻抗模值的 EP-2 涂层在高频区域较大范围内相位
                                                                     gel  based  silane  coating  filled  with  amino  and  isocyanate
             角较高。一般相位差越大,涂层的耐腐蚀性越好。
                                                                     silane functionalized graphene oxide nanosheets[J]. Applied
             因此 ,阻抗谱测试表明 EP-2 环氧涂层防腐性能                               Surface Science,2018,439:45-59.
             最佳。                                                [ 4 ] ODARCZENKO  M,THAKARE  D,LI  W,et  al. Self-
                                                                     protecting epoxy coatings with anticorrosion microcapsules[J].
             3  结 语                                                  ACS Omega,2018,3(10):14157-14164.
                                                                [ 5 ] 张贤慧,方大庆,高波,等 . 海洋钢结构用环氧
                 设计了系列含二氮芴结构的自缓蚀环氧树脂,                                片涂料的开发 [J]. 材料开发与应用,2015,30(1):
             应用 FT-IR、 H NMR、EIS 等研究了材料的防腐性能                         15-19.
                        1
             与防护机理。创新性地在环氧树脂中引入二氮芴                                   ZHANG  X  H,FANG  D  Q,GAO  B,et  al. Development  of
             基团,制备一系列自缓蚀环氧树脂。试验结果表                                   epoxy glass flakes coatings for off-shore steel structures[J].
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             明,制备的自缓蚀环氧树脂涂层表现出优异的防腐
                                                                     15-19.
             性能,可应用于海洋环境中的长期防腐。自缓蚀环
                                                                [ 6 ] AMENDOLA E,PALMIERI B,DELLO IACONO S,et al.
             氧树脂中的二氮芴结构能够有效吸附于金属表面,
                                                                     Thermally  mendable  self-healing  epoxy  coating  for
             并在腐蚀初期与亚铁离子迅速络合,限制腐蚀产物                                  corrosion  protection  in  marine  environments[J]. Materials,
             的形成,抑制腐蚀反应进一步蔓延。双酚 A、9,9-                               2023,16(5):1775.
             双(4-羟苯基)芴和环氧氯丙烷按物质的量比为 8∶                          [ 7 ] VERMA C,ABDELLATTIF M H,ALFANTAZI A,t al. N-
                                                                                                         e
             2∶200 聚合得到的自缓蚀环氧树脂,具有最佳的腐                               heterocycle  compounds  as  aqueous  phase  corrosion
             蚀防护效果。                                                  inhibitors:a  robust,effective  and  economic  substitute[J].
                                                                     Journal of Molecular Liquids,2021,340:117211-117223.
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                                                                                        e

                                                                     linked  sulfonated  poly(ether  ether  ketone)membranes
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