Corrosion protection by polyaniline-coated latex microspheres
Corrosion protection by polyaniline-coated latex microspheres
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DOI：
10.1016/j.jelechem.2005.05.014
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发表时间：
2005-09-01
影响因子：
4.5
通讯作者：
Aoki, K
中科院分区：
文献类型：
--
作者：
Abu, YM;Aoki, K
在0.01 mol dm(-3) HCl和3% (w/v) NaCl水溶液中，用聚苯胺包覆聚苯乙烯胶乳（PANI-PS）微球包覆铁板，对铁板进行了腐蚀保护。用化学苯胺在聚苯乙烯（PS）乳胶上聚合，合成了直径1.85 +/- 0.06 μ m的聚苯胺-PS颗粒。聚苯胺薄膜的导电态（祖母绿盐态）使其下铁的腐蚀电位从聚苯胺的绝缘态（低祖母绿态）向正极转移。用四氢呋喃溶解法去除聚苯乙烯芯的膜具有相似的防腐性能。采用Tafel图、开路电位-时间图来考察涂覆和未涂覆的聚苯胺-聚苯胺电极的腐蚀性能。(C) 2005年Elsevier B.V.出版
The iron plate covered with films of polyaniline-coated polystyrene latex (PANI-PS) microspheres were protected against corrosion in 0.01 mol dm(-3) HCl and 3% (w/v) NaCl aqueous solution. PANI-PS particles 1.85 +/- 0.06 mu m in diameter were synthesized by polymerizing chemically aniline on polystyrene (PS) latex in the suspension. The conducting state (emeraldine salt) of PANI film shifted the corrosion potential of the underlying iron toward a positive from the insulating state of PANI (leucoemeraldine form). The film from which core-polystyrene was removed by dissolution in tetrahydrofuran had the similar anti-corrosive properties. Tafel plots, open circuit potential-time diagrams were used to examine the corrosion properties of PANI-PS coated and uncoated electrodes. (C) 2005 Published by Elsevier B.V.