通过引发吸附在十二烷基苯磺酸(DBSA)改性羰基铁粉(CIP)表面的苯胺原位聚合,制备了具有核壳结构的羰基铁粉@聚苯胺(PANI)复合粉体.研究表明:DBSA对羰基铁粉有良好的分散保护作用;羰基铁粉经聚苯胺包覆后,涂层的自腐蚀电位显著升高,阳极极化电流变化平缓,显著降低了金属被氧化腐蚀的速度;聚苯胺链上的—NH—与环氧树脂链上的环氧端基间产生化学键合和氢键,对涂层有显著的增强增韧效果;涂层的微波吸收更强,有效频宽变宽,最大吸波向高频方向移动.
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