植物纤维无纺布表面化学镀镍及其机理研究  

Study on the preparation and mechanism of nickel plating on plant fiber nonwoven substrate

作　　者：王辉 周守发 许丽丽 孙志平[2] 黄俊俊 Wang Hui;Zhou Shoufa;Xu lili;Sun Zhiping;Huang Junjun(Hefei Lucky ＆ Technology Industry Co.,Ltd.,Hefei 230041;Hefei University,Department of Chemical and Materials Engineering,Hefei 230601;Taiyuan University of Technology,Research Institute of Surface Engineering,Taiyuan 030024)

机构地区：[1]合肥乐凯科技产业有限公司,合肥230041 [2]太原理工大学表面工程研究所,太原030024 [3]合肥学院化学与材料工程系,合肥230601

出　　处：《化工新型材料》2018年第8期170-173,共4页New Chemical Materials

摘　　要：采用钯离子(Pd2+)活化结合化学镀镍工艺制备金属化的植物纤维无纺布,并对制得的植物纤维无纺布进行了测试,研究了植物纤维无纺布表面化学镀镍机理及植物纤维无纺布电磁屏蔽性能。结果表明,植物纤维无纺布表面含有大量氨基,能与Pd2+发生鳌合,使Pd2+能以化学吸附的形式固定在纤维的表面,形成催化中心,有利于金属沉积,化学镀后镍的沉积量为无纺布质量的33%(wt,质量分数),镀层晶型为面心立方,电磁屏蔽效能在1~16GHz的频率范围介于37.3~38.0dB之间。表明Pd2+活化结合化学镀工艺可以在植物纤维无纺布表面制备紧密、均匀、连续的金属镍层。The metalization of plant fiber nonwoven were prepared by Pd2＋activating and then electroless nickel plating.The mechanism of electroless plating,and the electromagnetic interference（EMI）-shielding effectiveness（SE）properties of plated sheet were investigated using thermogravimetry,X-ray diffraction electron microscopy,scanning electron microscopy and X-ray photoelectron spectroscopy.Results showed that the surface of nonwoven contained amine groups,which was more prone to absorb palladium catalyst to form an active layer for electroless nickel plating.The weigh change of non-woven after electroless nickel plating was 33 wt%,the crystallographic structure of Ni-plated sheets was face centered cubic,and the average EMI-SE of nickel-plated sheets maintained a relatively stable value（37.3 dB to 38.0 dB）in a frequency range of 1 GHz to 16 GHz.It was indicated that the activated nonwoven were more prone to the plate of compact nickel coating.

关 键 词：非织造布 化学镀 电磁屏蔽 纤维 

分 类 号：TS176[轻工技术与工程—纺织材料与纺织品设计]