片状镀银铜粉/丙烯酸树脂电磁屏蔽复合涂料的研制  

Development of flaky silver-coated copper powders/epoxy resin electromagnetic shielding composite coatings

作　　者：管登高[1,2,3] 孙传敏[3] 孙遥[3] 徐冠立[3] 林金辉[1,2] 陈善华[1,2] 

机构地区：[1]成都理工大学材料与化学化工学院,成都四川610059 [2]矿产资源化学四川省高校重点实验室,成都四川610059 [3]成都理工大学地球科学学院,成都四川610059

出　　处：《电镀与涂饰》2011年第5期63-66,共4页Electroplating & Finishing

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)

摘　　要：以钛酸酯偶联剂改性后的片状镀银铜粉为填料,丙烯酸树脂为黏结剂,制备了一种高性能电磁波屏蔽复合涂料。讨论了片状铜粉含量对涂层导电性能的影响,测试了涂层的主要物理性能及电磁波屏蔽效能。结果表明,电磁波屏蔽复合涂料中片状镀银铜粉与丙烯酸树脂的最佳质量比为3:2,此时制备的涂料具有较好的导电性和电磁波屏蔽性能。涂膜厚度为300μm时,涂层的电阻率为0.03Ω·cm,在0.3～1000MHz频段内涂层的屏蔽效能达到70.15～77.46dB。An electromagnetic shielding composite coating with high performance was prepared with flaky silver-coated copper powder modified by titanate coupling agents as fillers and acrylic resin as binder.The effect of the content of the powder on conductivity of the coating was discussed.The main physical properties and electromagnetic shielding effectiveness of the coating were tested.The results showed that the coating prepared at a mass ratio of flaky silver-coated copper powder to acrylic resin 3：2 has optimal conductivity and electromagnetic shielding effectiveness.The coating 300 μm thick had a resistivity of 0.03 Ω·cm and a shielding effectiveness ranging from 70.15 dB to 77.46 dB in 0.3-1 000 MHz frequency band.

关 键 词：片状镀银铜粉 丙烯酸树脂 电磁屏蔽涂料 导电性 屏蔽效能 

分 类 号：TB34[一般工业技术—材料科学与工程] TQ630.7[化学工程—精细化工]