非洲白梧桐单板化学镀镍-铁合金的研究
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摘要
以非洲白梧桐单板为基材,采用化学镀法对施镀工艺条件及施镀前后单板的性能进行了研究。当镀液pH值为9.2时,单板于90℃环境下施镀40 min即可达到良好的化学镀效果;镀后单板的电磁屏蔽效能达到45 d B以上;镀后单板的表面镀层均匀、连续、有光泽,且保留了木材的纹理;研究还发现镀层中Ni为主要成分并且镀层为晶态结构;镀层的腐蚀电位及腐蚀电流密度分别为-0.301 V及7.58×10~(-6)A/cm~2,耐腐蚀性相比Ni-P合金显著提升。
Triplochiton sclexcylon veneer were used as substrates for investigating the plating conditions and the properties of the veneers before and after electroless plating. The results showed that the optimum conditions were as follows: pH value 9.2 and 90 ℃ for 40 min. The electromagnetic shielding effectiveness of the plated could exceeded 45 dB. The coating was continuous and compact, meanwhile, the texture of the wood was still retained. Ni was the main element in the coating and the coating was crystalline.The corrosion potential and corrosion current density of the coating were -0.301 V and 7.58 × 10~(-6) A/cm~2,respectively. Compared to Ni-P binary alloy, the corrosion resistance was significantly improved.
Triplochiton sclexcylon veneer were used as substrates for investigating the plating conditions and the properties of the veneers before and after electroless plating. The results showed that the optimum conditions were as follows: pH value 9.2 and 90 ℃ for 40 min. The electromagnetic shielding effectiveness of the plated could exceeded 45 dB. The coating was continuous and compact, meanwhile, the texture of the wood was still retained. Ni was the main element in the coating and the coating was crystalline.The corrosion potential and corrosion current density of the coating were -0.301 V and 7.58 × 10~(-6) A/cm~2,respectively. Compared to Ni-P binary alloy, the corrosion resistance was significantly improved.
引文
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[3]常方圆,曹亚威,崔蒙蒙,等.新型材料在现代家具设计与制造中的应用[J].家具,2015,36(2):31-37.
[4]李坚.木材科学[M].北京:高等教育出版社,2002.
[5]王立娟,李坚.木材化学镀镍工艺学基础[M].北京:科学出版社,2007.
[6]刘鹏,姜笑梅,张立非.非洲热带木材[M].北京:中国林业出版社,2008.
[7]SHI C H,WANG L,WANG L J.Fabrication of a hydrophobic,electromagnetic interference shielding and corrosionresistant wood composite via deposition with Ni-Mo-P alloy coating[J].Rsc Advances,2015,5(127):47-55.
[8]WANG L,SHI C H,WANG L J.Fabrication of magnetic and EMI shielding wood-based composite by electroless Ni-Fe-P plating process[J].BioResources,2015,10(1):1869-1878.
[9]黄金田,赵广杰.工艺参数对木材化学镀镍金属沉积速率的影响[J].木材工业,2006,20(1):18-20.
[10]郝玉林.镍基镀层微观结构与耐蚀性的研究[D].济南:山东大学,2014.
[11]KIM D.,MATSUDA H.,AOKI K.,et al.Electroless Ni-FeB alloy plating solution using DMAB as a reducing agent[J].Plating and Surface Finishing,1996(83):78-80.