在水溶液中制备了大量的直径约为0.5μm的超细镍粉,将其与微米镍粉以不同的比例进行复合作为导电填料制备电磁屏蔽涂料.结果表明当超细镍粉与微米镍粉的比例适当时(质量比=1:1),得到的涂料在130MHz～1.5GHz频段内具有比纯微米镍粉涂料更好的电磁屏蔽性能(40～55dB).
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