Overview of the Achievements of Major Program on"Structural Regulation and Directional Restructuring Mechanism for Efficient Utilization of Wood"
The major program of the National Natural Science Foundation"Structural regulation and directional restructuring mechanism for efficient utilization of wood"was initiated in January 2019 and completed in December 2023.This work summarizes the significant research progress which achieved over the five-year duration of the major project.It includes the theory of weak-phase structures in wood,the failure and enhancement regulation mechanisms of multi-dimensional weak-phase structures of wood in fast-growing plantation timber.Furthermore,the project develops a strategy for directional softening of wood cell walls and a new mechanism for dissociation of the secondary wall S]/S2 layer,deepening the fundamental understanding of precise dissociation and controllable functional recombination at the level of wood fiber.The article reveals the directional conversion of wood constituents and their aggregated state structures and develops a series of new wood-based functional materials for application in areas such as 3D printing,chiral optics,and phosphorescent anti-counterfeiting.The guidance and suggestions for the efficient utilization of wood are provided,including the interpretation and reconfiguration of natural wood structures,the directional transformation of main wood components,and functional regulation mechanisms.
major programplantation woodstructural regulationdirectional restructuring