单宁树脂在木材工业的应用研究进展

Research Advances in the Application of Tannin Resins in Wood Industry

单宁拥有天然的苯酚类结构,可广泛用于树脂胶黏剂的制备。介绍了单宁的资源现状,结构和树脂合成过程中存在的反应,及其在胶合板、刨花板、木材防腐、装饰浸渍纸、结构用集成材、纤维及其他复合材料等木质品生产领域的应用研究进展。概括了单宁树脂产业化应用存在的主要问题及下一步研究重点,对中国单宁在木材工业的有效利用提出了展望。

Tannins,featureed by their phenolic structures, are widely used to prepare tannin resins. In this paper, the resources, structures and existed reactions during the synthesis of tannin resin were introduced. In addition, the research progresses of tannin resin in plywood, particleboard, wood preservation, impregna- ted decoration paper, structural glulam, fiber and others wood-based products, were reviewed. The main problems of tannin resin application and key research points for next step were put forward. The effective utilization of tannin in Chinese wood industry was prospected.