EFFECTS OF pH ON Ni COATING ON POLY(ETHYLENE TEREPHTHALATE) SUBSTRATE BY PRINTING PRIME IN COMBINATION WITH PALLADIUM ACTIVATING

Junjun Huang (), Zhiping Sun, Hongzhi Huang, Qi Liu, Min Gao, Mengyu Li, Feng Zhao and Zhenming Chen
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Junjun Huang: Department of Chemical and Materials Engineering, Hefei University, Hefei City, 230601, P. R. China
Zhiping Sun: #xA7;Research Institute of Surface Engineering, Taiyuan University of Technology, Taiyuan City 030024, P. R. China
Hongzhi Huang: #x2021;College of Mechanical & Electrical Engineering, Anhui Polytechnic University, Wuhu City, 241100, P. R. China
Qi Liu: Department of Chemical and Materials Engineering, Hefei University, Hefei City, 230601, P. R. China
Min Gao: Department of Chemical and Materials Engineering, Hefei University, Hefei City, 230601, P. R. China
Mengyu Li: Department of Chemical and Materials Engineering, Hefei University, Hefei City, 230601, P. R. China
Feng Zhao: Department of Chemical and Materials Engineering, Hefei University, Hefei City, 230601, P. R. China
Zhenming Chen: #x2020;College of Chemistry and Bioengineering, Hezhou University, Hezhou City, 542899, P. R. China

Surface Review and Letters (SRL), 2016, vol. 23, issue 05, 1-7

Abstract: In this work, the primer-printed and then self-assembled poly(ethylene terephthalate) (PET) sheets were plated when the bath pH increased from 7 to 11. The effects of bath pH on the structural and electrical properties of electroless nickel plating were investigated systematically using X-ray diffraction (XRD) and scanning electron microscopy (SEM). Results showed that the crystallographic structures of Ni-plated PET (NPP) sheets were face centered cubic, the preferential orientation of the coatings changes from (200) plane to (111) plane, the growth rate of plated nickel coating increased from 3.71μm/min to 8.13μm/min, the average Ni crystal size was increased from 0.23μm to 0.92μm, the average EMI-SE of NPP sheets was increased from 37.2dB to 38.6dB and the surface electrical resistivity of NPP sheets was decreased from 6235ohm ⋅ cm to 0.03ohm ⋅ cm with the increase of bath pH. The changes in structural and electrical properties were most possibly due to the fact that the thickness of coating increased.

Keywords: Poly(ethylene terephthalate); bath pH; electroless nickel plating; preferential orientation (search for similar items in EconPapers)
Date: 2016
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DOI: 10.1142/S0218625X16500347

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