物理化学学报 >> 2026, Vol. 42 >> Issue (11): 100292.doi: 10.1016/j.actphy.2026.100292

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面向海洋应用的多功能涂层:基于氟硅烷包覆CIP实现防腐、吸波与减阻一体化

孙至民1,2, 薛文宇1,2, 杨爽爽1,2, 张朝阳1,2, 于波1, 王行伟1,2, 于强亮1,2, 周峰1, 刘维民1,2   

  1. 1 中国科学院兰州化学物理研究所固体润滑国家重点实验室, 甘肃 兰州 730000;
    2 山东烟台先进材料与绿色制造山东实验室, 山东 烟台 264000
  • 收稿日期:2026-02-11 修回日期:2026-03-22 录用日期:2026-03-24 发布日期:2026-09-29
  • 通讯作者: 王行伟, 于强亮 E-mail:wangxingwei@licp.cas.cn;yql@licp.cas.cn
  • 基金资助:
    本研究得到国家自然科学基金(52305234, 52475226);山东省自然科学基金(ZR2023QE329);泰山学者计划(tsqn202312299)及甘肃省科技计划(23ZDGA011, 24JRRA043)的资助

Multifunctional coating for marine applications: simultaneously achieving corrosion resistance, microwave absorption, and drag reduction via fluorosilane-encapsulated CIPs

Zhimin Sun1,2, Wenyu Xue1,2, Shuangshuang Yang1,2, Chaoyang Zhang1,2, Bo Yu1, Xingwei Wang1,2, Qiangliang Yu1,2, Feng Zhou1, Weimin Liu1,2   

  1. 1 State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, Gansu Province, China;
    2 Shandong Laboratory of Advanced Materials and Green Manufacturing at Yantai, Yantai 264000, Shandong Province, China
  • Received:2026-02-11 Revised:2026-03-22 Accepted:2026-03-24 Published:2026-09-29
  • Contact: Xingwei Wang, Qiangliang Yu E-mail:wangxingwei@licp.cas.cn;yql@licp.cas.cn

摘要: 羰基铁粉(CIP)是一种典型的磁损耗型微波吸收材料。然而,其在严苛海洋环境(高湿度、高盐度)下易发生电化学腐蚀,导致性能退化,限制了长期应用。本研究通过溶胶-凝胶法将全氟癸基三甲氧基硅烷(PFOTES)包覆在CIP表面制备了核壳结构粒子(CIP@PFOTES)。随后将粒子掺入氟硅树脂(FSR-ZY220L)中,制得多功能CIP@PFOTES-ZY涂层。该涂层表现出超疏水性,水接触角达158°。在0.1-100 s-1剪切速率范围内减阻率超过70%。中性盐雾环境中涂层展现出优异的长期耐腐蚀性能,电化学阻抗谱(EIS)表明在3.5 wt.% NaCl溶液中浸泡40 d后,低频阻抗模值(|Z|0.01 Hz)仍保持在107 Ω cm2以上。此外,1.3 mm厚度涂层获得7.52 GHz有效吸收带宽(EAB,RL ≤ -10 dB),微波吸收性能较未改性样品显著提升。本研究为开发适用于严苛海洋环境的高性能、多功能防护涂层提供了一种有效的材料设计策略。

关键词: 羰基铁粉, 核壳结构, 耐腐蚀性, 微波吸收, 减阻, 超疏水性

Abstract: Carbonyl iron powder (CIP) is a typical magnetic loss-type microwave absorbing material. However, its susceptibility to electrochemical corrosion in harsh marine environments (characterized by high humidity and salinity) leads to performance degradation, limiting long-term applications. In this study, core-shell particles (CIP@PFOTES) were fabricated via a sol-gel method, encapsulating CIP with a perfluorodecyltrimethoxysilane (PFOTES) shell. These particles were then incorporated into a fluorosilicone resin (FSR-ZY220L) to produce a multifunctional CIP@PFOTES-ZY coating. The coating exhibited superhydrophobicity with a water contact angle of 158°. A drag reduction exceeding 70% was achieved at shear rates ranging from 0.1 to 100 s-1. The coating demonstrated excellent long-term corrosion resistance in a neutral salt spray environment. Electrochemical impedance spectroscopy (EIS) indicated that after 40 d of immersion in a 3.5 wt.% NaCl solution, the low-frequency impedance modulus (|Z|0.01 Hz) remained above 107 Ω cm2. Furthermore, with a thickness of 1.3 mm, the coating achieved an effective absorption bandwidth (EAB, RL ≤ -10 dB) of 7.52 GHz, demonstrating significantly superior microwave absorption performance compared to the unmodified counterpart. This study provides an effective material design strategy for developing high-performance, multifunctional protective coatings for marine applications.

Key words: Carbonyl iron powder, Core-shell structure, Corrosion resistance, Microwave absorption, Drag reduction, Superhydrophobicity