Purpose of Review

In the last decade, a transformation has occurred in the coating industry. While, in the past, the industry was primarily focused on reducing volatile organic compounds (VOC) and formaldehyde emissions, it is now circularity driving this industry. In this paper, we present several advances that have been made, as well as key trends in the wood coatings industry.

Recent Findings

Replacing petroleum-based chemicals in coating formulations is at the heart of current research. In recent years, various biosourced molecules from animal and plant sources have been the subject of many studies aiming to incorporate them in coatings. Despite all the progress made in the last few years, coating producers are still facing many challenges regarding the availability and quality of biobased raw materials and balancing performance versus cost.

Summary

While most of the sustainable coating solutions discussed in this review focus on well-known and widely accepted coating chemistries and technologies (water-based and photopolymerizable polyurethanes (PUs), acrylics, and epoxies), we also present new technologies that are expected to gain significant importance in the next few years such as layer-by-layer (LBL), polyelectrolyte complexes, and isocyanate-free PU.

中文翻译：

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可持续和功能性木器涂料的最新发展和趋势

审查目的

在过去的十年中，涂料行业发生了转变。过去，该行业主要关注减少挥发性有机化合物 (VOC) 和甲醛排放，而现在，循环经济正在推动该行业的发展。在本文中，我们介绍了木器涂料行业已取得的几项进展以及主要趋势。

最近的发现

取代涂料配方中的石油基化学品是当前研究的核心。近年来，来自动物和植物的各种生物来源分子已成为许多研究的主题，旨在将它们纳入涂料中。尽管过去几年取得了所有进展，但涂料生产商在生物基原材料的可用性和质量以及平衡性能与成本方面仍然面临许多挑战。

概括

虽然本次评论中讨论的大多数可持续涂料解决方案都集中于众所周知且广泛接受的涂料化学和技术（水基和光聚合聚氨酯（PU）、丙烯酸树脂和环氧树脂），但我们还介绍了有望获得认可的新技术。未来几年将具有重要意义，例如逐层（LBL）、聚电解质复合物和无异氰酸酯聚氨酯。