文献类型：期刊文献

英文题名：Magnesium Substrates Employing Hydrophobic Pdms/Mmt Coating Strategy for Simultaneous Achievement of Self-Cleaning, Corrosion Resistance, and Electromagnetic Shielding

作者：Duan, Chunmei[1]; Han, Lei[2]; Yang, Guanda[3,4]; Schubert, Dirk[3,4]; Zhang, Taochuan[1]

机构：[1] School of Mechanical Engineering, Guangdong Ocean University, Zhanjiang, 524088, China; [2] School of Automobile and Transportation Engineering, Guangdong Polytechnic Normal University, Guanzhou, 510665, China; [3] Lehrstuhl für Polymerwerkstoffe, Friedrich-Alexander-Universit?t Erlangen-Nürnberg, Martensstra?e 7, Erlangen, 91058, Germany; [4] Bavarian Polymer Institute, KeyLab Advanced Fiber Technology, Dr.-Mack-Stra?e 77, Fürth, 90762, Germany

年份：2024

外文期刊名：SSRN

收录：EI(收录号：20240045119)

语种：英文

外文关键词：Cleaning - Contact angle - Corrosion resistance - Corrosion resistant coatings - Durability - Electromagnetic shielding - Electromagnetic wave absorption - Microchannels - Passivation - Polydimethylsiloxane - Silicones - Sodium chloride - Substrates - Surface chemistry - Wear of materials - Wear resistance

外文摘要：A highly efficient surface coating strategy using polydimethylsiloxane (PDMS) modified montmorillonite (MMT) was revealed, to enhance the surface performance and durability of magnesium substrates. Contact angle, self-cleaning, wear resistance, corrosion resistance and ultrabroadband electromagnetic absorption and EMI shielding evaluations were well studied. The obtained PDMS/MMT/Mg substrate consistently exhibited an obvious increased contact angle from 76.1 to 141.9 °, signifying strong hydrophobicity and self-cleaning properties compared to the untreated R-Mg substrate. No significant surface wettability changes were detected even after 50 times tape peelings and 3.0 wt.% NaCl solution immersion for 60 h, indicating high durability of the protective PDMS/MMT coatings. In addition, the article concurrently investigated EMI shielding and electromagnetic wave absorption of the PDMS/MMT/Mg substrates. This study underscores the effectiveness of the PDMS/MMT coating in maintaining hydrophobic surface properties to enhance corrosion resistance, as well as highlights the suitability of PDMS/MMT/Mg substrates for electromagnetic shielding applications. ? 2024, The Authors. All rights reserved.