Photothermal self-adaptive PSF-TO/PPy@BN dual-functional epoxy coating: Photothermally enhanced anti-icing and self-healing

IF 7.3 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings Pub Date : 2025-08-26 DOI:10.1016/j.porgcoat.2025.109613

Yuliang Zhang , Yang Xu , Fei Wang , Wenchao Huang , Yanhua Lei , Xiaofeng Li , Xiaojing Sui , Zhiyan Li , Xueting Chang

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Abstract

This study presented a fabrication protocol for a multifunctional coating integrating photothermal responsiveness, self-lubrication, and self-healing properties. The coating was engineered by encapsulating tung oil (TO) within a polysulfone (PSF) matrix, leveraging the photothermal conversion capability of photothermal fillers to achieve localized thermal activation for on-demand lubricant release and crack repair. The PSF-encapsulated tung oil microcapsules (PSF-TO) and polypyrrole-coated boron nitride (PPy@BN) were uniformly dispersed in epoxy resin, followed by spin-coating or trickle-coating onto substrate surfaces. The coated substrate was thermally cured to form a robust composite film, with its photothermal performance, tribological performance, and self-healing capability systematically evaluated. The coating was able to reach a surface temperature of 83 °C under one sunlight intensity and was able to repair surface scratches within 155 s. At the same time, its delayed icing time can reach 380 s, and under a sunlight intensity, the surface icing can be melted and slipped off within 75 s. This work provided a scalable strategy for extreme mechanical environments, such as marine and aerospace applications.

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光热自适应PSF-TO/PPy@BN双功能环氧涂料：光热增强抗结冰和自修复

本研究提出了一种集光热响应性、自润滑和自修复性能于一体的多功能涂层的制备方案。该涂层是通过将桐油（TO）封装在聚砜（PSF）基体中，利用光热填料的光热转换能力来实现局部热激活，以实现按需释放润滑剂和修复裂缝。将psf包覆的桐油微胶囊（PSF-TO）和聚吡咯包覆的氮化硼（PPy@BN）均匀分散在环氧树脂中，然后在基底表面进行旋涂或滴涂。对涂层基板进行热固化，形成坚固的复合膜，并对其光热性能、摩擦学性能和自愈能力进行系统评价。该涂层能够在一个阳光强度下达到83°C的表面温度，并且能够在155 s内修复表面划痕。同时，其延迟结冰时间可达380 s，在一定光照强度下，表面结冰可在75 s内融化脱落。这项工作为极端机械环境（如海洋和航空航天应用）提供了可扩展的策略。

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来源期刊

Progress in Organic Coatings 工程技术-材料科学：膜

CiteScore

11.40

自引率

15.20%

发文量

577

审稿时长

48 days

期刊介绍： The aim of this international journal is to analyse and publicise the progress and current state of knowledge in the field of organic coatings and related materials. The Editors and the Editorial Board members will solicit both review and research papers from academic and industrial scientists who are actively engaged in research and development or, in the case of review papers, have extensive experience in the subject to be reviewed. Unsolicited manuscripts will be accepted if they meet the journal''s requirements. The journal publishes papers dealing with such subjects as: • Chemical, physical and technological properties of organic coatings and related materials • Problems and methods of preparation, manufacture and application of these materials • Performance, testing and analysis.