Photopolymerization is considered as one of most promising candidates for microcapsules-embedded self-healing system due to its significant advantages, e.g., fast, energy efficient and commonly economical. However, many microencapsulated photopolymerizable healing agents are usually expensive, unsustainable, or even environmentally hazardous. Herein, a polymeric microcapsule with hierarchical shell and low-cost, sustainable epoxidized soybean oil (ESO) as main core material was prepared through in situ polymerization in oil-in-water emulsion. Mean diameter of microcapsules versus agitation rate is exponential decay and linear in double logarithm coordinates, indicating their structure can be controlled effectively. ESO-based core materials are photopolymerizable under air upon sunlight or xenon lamp irradiation. Microcapsules-embedded epoxy coatings possess sunlight-induced self-healing anticorrosion. Besides, microcapsules have a good thermal stability, a long-term storage stability and a superior tolerance for attacks of light and water. Thanks to micro-/nanohierarchical structure on their surface resembling a lotus leaf, microcapsules have a superhydrophobicity and microcapsules-bound coatings exhibit a self-cleaning property.

中文翻译：

---

具有可持续核和层次壳的聚合物微胶囊，具有超疏水性和阳光诱导的自愈性能

由于光聚合的显着优点，例如快速，节能和通常经济，光聚合被认为是嵌入微胶囊的自愈系统的最有希望的候选者之一。然而，许多微囊化的可光聚合的愈合剂通常是昂贵的，不可持续的，甚至对环境有害的。在此，通过在水包油型乳液中原位聚合制备了具有分级壳层和低成本，可持续的环氧化大豆油（ESO）为主要核心材料的聚合物微胶囊。微胶囊的平均直径对搅拌速率呈指数衰减且在双对数坐标下呈线性，表明其结构可得到有效控制。基于ESO的芯材在阳光或氙灯照射下在空气中可光聚合。嵌入微胶囊的环氧涂料具有阳光诱导的自修复防腐作用。此外，微胶囊具有良好的热稳定性，长期储存稳定性以及对光和水的侵蚀的优异耐受性。由于其表面上类似于荷叶的微/纳米级结构，微胶囊具有超疏水性，并且与微胶囊结合的涂层具有自清洁性能。