在碳钢表面制备了一种由硅烷粘结剂和鳞片状锌铝粉所组成的硅烷锌铝涂层.研究了该涂层/碳钢体系在3.5%NaCl溶液中的腐蚀电化学行为.结果表明,该涂层的作用过程可以分为3个阶段:浸泡初期为表层的金属粉活化,中期为电化学保护,后期主要为阻挡层保护.硅烷锌铝涂层的阻挡层作用较弱,阴极保护为其主要防护机理.
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