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王   波等:基于改性氧化石墨烯/聚苯胺增强水性聚氨酯防腐涂层的制备及性能研究

             反应活性位点等特点,使多巴胺在碱性条件下在                                   111-126.
             FGO/PANI 纳米填料表面自聚合 ,制备了                            [ 6 ] AMROLLAHI  S,RAMEZANZADEH  B,YARI  H,et  al.
             PDA/FGO/PANI 纳米填料。并将其加入到 WPU 预聚                         Synthesis  of  polyaniline-modified  graphene  oxide  for
                                                                     obtaining  a  high  performance  epoxy  nanocomposite  film
             体充分混合均匀,形成 PFPWPU-X 乳液。由于 PDA
                                                                     with  excellent  UV  blocking/anti-oxidant/anti-corrosion
             表面的大量反应活性基团,在成膜过程中使 PDA 中
                                                                     capabili-ties[J]. Composites  Part  B:Engineering,2019,
             的—NH 和—OH 与 WPU 中的端基—NCO 反应,从而
                    2
                                                                     173:106804.
             使得 WPU 与 PDA/FGO/PANI 紧密结合 ,提高
                                                                [ 7 ] LEE H,DELLATORE S M,MILLER W M,et al. Mussel-
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             包裹的 FGO/PANI 填充 WPU,能够有效提高 WPU 的                        Science,2007,318:426-430.
             防腐性能,并且 PDA 的加入不会破坏 PANI 的防腐机                      [ 8 ] HABIBIYAN A,RAMEAZNZADEH B,MAHDAVIAN M,
             理。当 PDA 与 FGO/PANI 的质量比为 2∶1 时,                         et  al. Rational  assembly  of  mussel-inspired  polydopamine

             PFPWPU-4 涂层具有最佳的防腐性能,浸泡初期,                             (PDA)-Zn(II) complex  nanospheres  on  graphene  oxide
                                   2
                             9
             |Z|   为 6. 52×10  Ω·cm ,浸泡 60 d后,Z|      Hz仍然           framework  tailored  for  robust  self-healing  anti-corrosion
                                                |
               0. 01 Hz                            0. 01             coatings  application[J]. Chemical  Engineering  Journal,
             保持在2. 71×10  Ω·cm ,具有更加长期的保护效果。
                           8
                                 2
                                                                     2020,391:123630.
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