木材单板表面化学镀镍  

Electroless Nickel Plating on Poplar Veneer

作　　者：王立娟[1] 李坚[1] 刘一星[1] 

机构地区：[1]东北林业大学生物质材料科学与技术教育部重点实验室,黑龙江哈尔滨150040

出　　处：《精细化工》2006年第3期230-233,237,共5页Fine Chemicals

基　　金：国家自然科学基金资助项目(30571454);哈尔滨市青年基金资助项目(2004AFQXJO27)~~

摘　　要：以杨木单板为原料,利用化学镀法在其表面镀覆N i-P合金镀层,以此来制备具有电磁屏蔽功能的木材-金属复合材料。用扫描电镜(SEM)、能谱分析仪(EDS)和X射线衍射仪(XRD)分析了镀层形貌、成分和镀层结构,研究了经表面化学镀N i-P合金后杨木单板的电磁屏蔽性能和表面导电性能。SEM分析表明,杨木单板经表面化学镀N i-P合金后,表面完全被镀层覆盖,金属感增强。EDS分析表明,镀层为N i-P合金镀层,其中磷含量较低,主要成分为镍。XRD分析结果表明,镀层为晶态结构。镀后杨木单板的表面电阻率很低,而电磁屏蔽效能较高,在9 kHz^1.5 GHz,可达到60 dB左右。Electromagnetic shielding wood-metal composite was prepared by electroless plating of Ni - P ahoy on poplar veneer. The structure of nickel plating layer and the content of P in it were analyzed with SEM, EDS and XRD. The electromagnetic shielding and electric properties of electroless nickel plated poplar veneer were investigated. SEM photographs showed that the surface of the veneer was covered with a layer of continuous and uniform Ni - P alloy entirely, which made the poplar veneer more like metal. It was shown by XRD analysis that the plating layer had microcrystalline structure in which the content of P was very low and the main element was nickel by EDS analysis. The surface resistance of electroless plated poplar veneer was very low. However, the electromagnetic shielding effectiveness was high and close to 60 dB at frequencies from 9 KHz to 1.5 GHz.

关 键 词：杨木单板 化学镀镍 镀层性能 

分 类 号：TQ153.12[化学工程—电化学工业]