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镀覆工艺对镀镍铝粉/硅橡胶复合材料电磁屏蔽性能的影响

Effect of Plating Process on Electromagnetic Shielding Property of Nickel-plated Aluminum Powder/MVQ Composites

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【作者】 王广克吕运强聂京凯金文德杨国亮王斌韩钰

【Author】 WANG Guangke;LYU Yunqiang;NIE Jingkai;JIN Wende;YANG Guoliang;WANG Bin;HAN Yu;Global Energy Interconnection Research Institute.Co.,Ltd;State Grid Corporation of China;State Grid Zhejiang Electric Power Co.,Ltd;State Grid Beijing Electric Power Company;Jinhua Power Supply Company,State Grid Zhejiang Electric Power Co.,Ltd;

【机构】 全球能源互联网研究院有限公司国家电网有限公司国网浙江省电力有限公司国网北京市电力公司国网浙江省电力有限公司金华供电公司

【摘要】 采用不同镀覆工艺(置换法、还原法和先置换后还原法)制备镀镍铝粉,研究镀覆工艺对镀镍铝粉/甲基乙烯基硅橡胶(MVQ)复合材料电磁屏蔽性能的影响。结果表明:采用置换法制备的镀镍铝粉镍镀层厚度较小;采用还原法制备的镀镍铝粉镀层结合强度较低;采用先置换后还原法制备的镀镍铝粉镀层厚度较大,镀层结合强度较高;采用先置换后还原法制备的镀镍铝粉/MVQ复合材料电磁屏蔽性能优异,在30~3 000 MHz频段内,其电磁屏蔽效能在55~95 dB之间。

【Abstract】 The nickel-plated aluminum powders were prepared by different plating process,for example,substitution method,reduction method and reduction after substitution,and the effect of plating process on the electromagnetic shielding property of nickel-plated aluminum powder/methyl vinyl silicone rubber(MVQ) composites was investigated. The results showed that,the nickel-plated coating thickness by substitution method was relatively small. The bonding strength of nickel coating by reduction method was relatively low. With the process of reduction after substitution,the coating thickness was relatively large,the bonding strength was high,the electromagnetic shielding property of resulted nickel-plated aluminum/MVQ composites was excellent,and the electromagnetic shielding efficiency was between 55 and 95 dB in the frequency band of 30~3 000 MHz.

【基金】 国家电网有限公司科技项目(纳米电工材料及应用技术研究与示范)
  • 【文献出处】 橡胶工业 ,China Rubber Industry , 编辑部邮箱 ,2019年10期
  • 【分类号】TB332
  • 【被引频次】4
  • 【下载频次】220
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