Three-dimensional nanofibers network multifunctional material for photothermal self-healing protective coating

文献类型： 外文期刊

第一作者： Cao, Lin

作者： Cao, Lin;Wang, Wei;Li, Qiyuan;Wang, Tong;Qin, Xude;Piao, Jinming;Chen, Shougang;Feng, Chao

作者机构：

关键词： Self-healing; Photothermal; Electrospun nanofibers; Coating; Corrosion protection

期刊名称：CHEMICAL ENGINEERING JOURNAL （ 影响因子：16.744； 五年影响因子：14.61 ）

ISSN： 1385-8947

年卷期： 2022 年 440 卷

页码：

收录情况： SCI

摘要： The increasing attention to metal corrosion has stimulated the demand for intelligent self-healing coatings that respond rapidly to environmental changes in corrosive media to protect metal substrates. This study fabricates highly loaded yet well dispersed polyvinyl butyral-cuprous oxide @ tannic acid (PVB-Cu2O@TA) multifunctional nanofibers. TA as the core, PVB as the shell, and cuprous oxide nanoparticles uniformly growing on three-dimensional (3D) nanofibers cooperatively exhibit excellent self-healing performance. Near-infrared (NIR)-induced photothermal self-healing coatings are prepared by embedding PVB-Cu2O@TA nanofibers into the acrylic resin. When NIR irradiates the composite coating composed of PVB-Cu2O@TA, the photothermal effect generated by the plasmonic Cu2O NPs effectively heats the coating and heals the cracks within 100 s, enabling multiple cycle-healing properties. In addition, TA as a healing agent loaded in core-shell nanofibers effectively heals the scratches and inhibits the corrosion behavior of carbon steel. The combination of extrinsic and intrinsic healing mechanisms makes the coating own a more vital healing ability, thus providing preferable protective performance. More importantly, 3D-network-structured nanofibers could improve the mechanical properties of the composite coating. PVB-Cu2O@TA nanofibers have excellent synergistic repeated self-healing and good mechanical properties, which have significant application prospects in the field of marine and aviation corrosion protection.

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[1]Three-dimensional nanofibers network multifunctional material for photothermal self-healing protective coating. Cao, Lin,Wang, Wei,Li, Qiyuan,Wang, Tong,Qin, Xude,Piao, Jinming,Chen, Shougang,Feng, Chao. 2022

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