Title: Multifunctional Ni/PDMS-coated magnesium plates with highly efficient anti-electromagnetic interference design

Authors: Xiaoli Liu; Sha Li; Suihan Sui; Dirk W. Schubert; Guanda Yang

Addresses: School of Mechanical Engineering, Shangqiu Institute of Technology, Shangqiu 476000, China ' School of Mechanical Engineering, Shangqiu Institute of Technology, Shangqiu 476000, China ' School of Mechanical Engineering, Shangqiu Institute of Technology, Shangqiu 476000, China ' Lehrstuhl für Polymerwerkstoffe, Friedrich-Alexander-Universität Erlangen-Nürnberg, Martensstraße 7, Erlangen 91058, Germany; KeyLab Advanced Fiber Technology, Bavarian Polymer Institute, Dr.-Mack-Straße 77, Fürth 90762, Germany ' Lehrstuhl für Polymerwerkstoffe, Friedrich-Alexander-Universität Erlangen-Nürnberg, Martensstraße 7, Erlangen 91058, Germany; KeyLab Advanced Fiber Technology, Bavarian Polymer Institute, Dr.-Mack-Straße 77, Fürth 90762, Germany

Abstract: This study investigates the multifunctional properties of magnesium (Mg) plates coated with a nickel/polydimethylsiloxane (Ni/PDMS) layer using a layer-by-layer technique. Surface morphology analysis reveals the successful formation of micro/nanostructured patterns on the coated surface, enhancing hydrophobicity and corrosion resistance. Energy-dispersive X-ray spectroscopy confirms the elemental composition, providing crucial insights for optimising the coating process. The modified Mg plates exhibit a significant increase in contact angle, indicating enhanced hydrophobicity. Self-cleaning tests demonstrate the superior self-cleaning effect of the coated surface. Wear and corrosion resistance evaluations reveal the durability and reliability of coatings. Furthermore, the electromagnetic wave absorption capacity analysis suggests the potential application of Mg/Ni/PDMS samples as efficient anti-electromagnetic interference materials in the 2-18 GHz frequency range.

Keywords: surface science; magnesium plates; layer-by-layer; hydrophobicity; corrosion resistance; self-cleaning; anti-electromagnetic interference.

DOI: 10.1504/IJSURFSE.2024.141508

International Journal of Surface Science and Engineering, 2024 Vol.18 No.3, pp.260 - 273

Received: 07 Jan 2024
Accepted: 01 Feb 2024
Published online: 18 Sep 2024 *

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