镀Ni-Cu硅酸钙镁晶须/镍粉/环氧树脂电磁屏蔽涂料研究  

Study on Ni-Cu-coated calcium-magnesium silicate whisker/nickel powder/epoxy resin electromagnetic shielding coating

作　　者：管登高[1,2] 孙传敏[2] 孙遥[2] 徐冠立[2] 林金辉[1] 陈善华[1] 

机构地区：[1]成都理工大学材料与化学化工学院,成都610059 [2]成都理工大学地球科学学院,成都610059

出　　处：《化工新型材料》2011年第6期40-42,52,共4页New Chemical Materials

基　　金：四川省青年基金项目(09ZQ026-047);矿物学;岩石学;矿床学国家重点(培育)学科建设项目(SZD0407);教育部博士点基金联合资助项目(20050616008)

摘　　要：以一种新型镀Ni-Cu硅酸钙镁矿物晶须和羰基镍粉作为屏蔽复合填料,研制出了一种新型镀Ni-Cu硅酸钙镁晶须/镍粉/环氧树脂电磁波屏蔽复合涂料,并研究了其导电和电磁波屏蔽性能。结果表明,添加4%(wt)的镀Ni-Cu硅酸钙镁晶须能显著改善涂层的电磁性能,膜厚300μm,涂层电阻率为1.09Ω.cm,涂层屏蔽效能在0.3-1000MHz频段内为39.24-48.52dB。A new type of Ni-Cu-coated Calcium-magnesium Silicate whisker/Nickel powder/epoxy resin electromagnetic shielding coating was prepared using Ni-Cu-coated whisker and Ni-carbonyl powders as shielding composite filler.And the conductivity and shielding properties of coating were studied.The results indicated that the electromagnetic performance of coating increased remarkably when the addition of Ni-Cu-coated Calcium-magnesium Silicate whisker in the filler was 4 wt%.When the coating layer thickness was 300 μm,the resistivity of the coating was 1.09 Ω·cm and the shielding effectiveness was 39.24-48.52 dB in the frequency range of 0.3-1000MHz.

关 键 词：电磁屏蔽涂料 电磁辐射污染 导电性 屏蔽效能 硅酸钙镁晶须 

分 类 号：TQ637[化学工程—精细化工]