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水性电磁屏蔽涂料的开发与应用

Dyestuffs and Coloration(2019)

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Abstract
本文采用炭黑、石墨粉和石墨烯为导电材料调配出一种水性电磁屏蔽涂料,可做内墙底漆使用,对水泥、砂浆、腻子、石膏、砖石均有较强的附着力,电磁屏蔽涂料的最佳配方为:导电浆料∶粘合剂基料=70%∶30%,石墨烯∶炭黑∶石墨粉=40%∶30%∶30%.经权威部门测试,在0.3 MHz~ 40 GHz频段的屏蔽效能40.1~62.3dB;将水性电磁屏蔽涂料应用于屏蔽室施工中,实测涂料墙200 MHz~ 3.0 GHz频段的屏蔽效能42~48 dB,具备较好的屏蔽效果.
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