为了使PVC材料具备电磁屏蔽性能,利用化学镀工艺在PVC基材表面制备了Ni-Co-P合金镀层.利用网络分析仪测量法对镀层的电磁屏蔽效能进行测试,研究了不同沉积时间和钴盐含量对合金镀层电磁屏蔽性能的影响.结果表明:随着沉积时间的增加,镀层电磁屏蔽效能逐渐增加,当沉积时间超过60min之后,镀层的电磁屏蔽效能增加不再明显;而硫酸钴含量的变化对镀层电磁屏蔽效能的影响不明显,这可能是由于钴比镍难还原,含钴镀层的形成比较缓慢,当沉积时间一定时,改变镀液中硫酸钴的含量对镀层沉积速度影响不大所致.
The Ni-Co-P alloy plating layer was prepared on the surface of activated PVC plastic for electromagnetism interference (EMI) shielding by using electroless plating method. The EMI shielding efficiency was tested by the network analysis measurement. The effects of sediment time and content of Co~(2+) on the EMI shielding efficiency of plating layer were studied. The result shows that the EMI shielding efficiency of the layer increases remarkably with the prolonging of the sediment time to 60min, after which the increase of EMI shielding efficiency almost stops. The change of the Co~(2+) content has a little effect on the EMI shielding efficiency, and the possible reason is that the formation of a layer containing Co is slow because the reduction of Co~(2+) is more difficult than that of Ni~(2+). Within the settled sediment time of 60min, the changing of the content of Co~(2+) has little effect on the sediment rate.
参考文献
| [1] | 王光华,董发勤,司琼.电磁屏蔽导电复合塑料的研究现状[J].材料导报,2007(02):22-25. |
| [2] | 薛丹敏,罗延龄.偶联处理对HDPE/炭黑复合材料PTC性能的影响[J].现代塑料加工应用,2003(02):5-9. |
| [3] | 刘顺华,郭辉进,段玉平,管洪涛.炭黑/ABS /金属网复合材料电磁屏蔽性能的研究[J].材料工程,2004(09):27-32. |
| [4] | 毕韶丹.化学镀Ni-Co-P合金的工艺控制因素[J].表面技术,2004(04):46-47. |
| [5] | 杨二冰,王杰民.铝基体上化学镀Ni-Co-P的工艺研究[J].郑州大学学报（工学版）,2008(02):55-58. |
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