Preparation and Kinetics of Wood-Based Ni-P Coating Electromagnetic Shielding Material by Ytterbium-Improved Electroless Plating
A wood-based Ni-P coating electromagnetic shielding material was prepared in an ytterbium oxide-added electroless plating bath. The kinetic model was established and confirmed to be in accord with the experiment and can be used to predict the deposition rate within a certain range. The experimental results showed that the Ni-P coating prepared with the addition of Yb2O3 were smoother, denser and brighter than that prepared without addition of Yb2O3. The deposition rate and electromagnetic shielding effectiveness of the former were 2.662mol×10-4/(cm2h) and 56.48 dB which is about 13% and 9% higher than those of the latter under the same bath compositions and operation conditions.
Jianmin Zeng, Zhengyi Jiang, Taosen Li, Daoguo Yang and Yun-Hae Kim
B. Q. Jiang et al., "Preparation and Kinetics of Wood-Based Ni-P Coating Electromagnetic Shielding Material by Ytterbium-Improved Electroless Plating", Advanced Materials Research, Vols. 199-200, pp. 404-408, 2011