Drying oils are attracting the attention of researchers not only in wood protection but also as self-healing agents in smart coatings for corrosion protection. The two most used drying oils are linseed oil and tung oil due to the fast-drying properties when they contact oxygen from the atmosphere. The encapsulation method is a quick and easy way to preserve their properties, facing many challenges in achieving stable oil-in-water emulsions. This review paper summarizes recent achievements in encapsulating drying oils, tackling their high viscosity by changing process parameters (stirring speed, homogenization/ultrasonic step, use of different emulsifiers, etc.). Besides, a critical overview of crucial points in corrosion protection of metals is presented and discussed. The difficulties drying oils encapsulation methods face and recent proofs-of-concept and future developments are explored. This review paper also provides an economical and feasibility analysis for the industrial application of drying oils in self-healing coatings for corrosion protection.

干性油不仅在木材保护方面引起了研究人员的关注，而且在用于腐蚀保护的智能涂料中作为自修复剂也引起了研究人员的注意。两种最常用的干性油是亚麻子油和桐油，因为它们在接触大气中的氧气时具有快速干燥的特性。封装方法是保持其性能的一种快速简便的方法，在实现稳定的水包油乳液方面面临许多挑战。这篇综述文章总结了最近在封装干性油方面取得的成就，通过改变工艺参数（搅拌速度、均质化/超声步骤、使用不同的乳化剂等）来解决其高粘度问题。此外，还对金属腐蚀保护的关键点进行了批判性概述和讨论。探讨了干性油封装方法面临的困难以及最近的概念验证和未来发展。本综述还为干性油在自修复涂料中用于腐蚀防护的工业应用提供了经济和可行性分析。