木质素及其衍生物在3D打印光敏树脂中的应用

Researches and applications of lignin and its derivatives in 3D printing photosensitive resins

随着社会消费需求向绿色、可持续发展方向不断转型及国家“双碳”战略目标的提出,深入开发低碳环保型3D打印材料(如生物质基3D打印光敏树脂)是十分必要的。木质素作为仅次于纤维素的第二大可再生绿色生物质资源,在3D打印材料中具有广阔的应用前景。本文综述了木质素及其衍生物用作生物质基3D打印光敏树脂材料的最新应用研究,包括木质素基光敏预聚物、木质素基活性稀释剂、木质素基光引发剂及木质素作为添加剂在3D打印光敏树脂材料中的应用机制及性能影响。最后对木质素基3D打印光敏树脂的未来挑战和工业化前景进行了分析与展望。

It is eagerly necessary to further develop the low-carbon and environmentally friendly 3D printing feedstocks,such as biomass-based three-dimensional(3D)printing photosensitive resin polymers,considering the continuous transformation of social consumption demands to green and sustainable development direction and the proposal of the national“double carbon”strategic goal.Lignin,as the second renewable and green biopolymer after cellulose,has exhibited its great application prospects in 3D printing feedstocks.The aim of this paper is to provide a critical review on the most cutting-edge researches of lignin and its derivatives as biomaterial feedstocks of 3D printing photosensitive resins,including the applications mechanism and performance effects of lignin-based photosensitive oligomers,lignin-derived reactive diluents,lignin-derived photo-initiators,as well as the ligninbased additives.Finally,the challenges and industrial prospects of lignin-based photosensitive resins as 3D printing feedstocks are analyzed and prospected.