Review on Research Progress and Application of Wood Pretreatment Technology
PENG Tingting1, YANG Zhaozhe2, FU Qiliang3, FENG Xinhao1, WU Zhihui1, LIU Honghai1,4,*
1 College of Furnishings and Industrial Design, Nanjing Forestry University, Nanjing 210037, China 2 Institute of Chemical Industry of Forest Products, Nanjing 210042, China 3 College of Materials Sci.& Eng., Nanjing Forestry University, Nanjing 210037, China 4 Collaborative Innovation Center for Efficient Processing and Utilization of Forestry Resources in Jiangsu Province, Nanjing 210037, China
Abstract: Wood is a green, renewable resource that has been widely used in fields such as construction, automotive, furniture, and art due to its unique texture, color, aroma, temperature and humidity regulation properties. However, the complex micro-nano structure and the intricate multi-component nature of wood increase its utilization difficulty, thereby limiting its efficient use. Pretreatment technology can alter the anisotropy in the chemical composition and physical structure of wood, overcome processing barriers of certain components, and decipher the dense micro-nano structure, thereby enhancing the physicochemical accessibility of wood. This facilitates the subsequent functional and efficient utilization of wood. This article introduces the basic structure and characteristics of wood, summarizes various wood pretreatment processes, including biological, physical, chemical, and combined pretreatment methods, and reviews the application progress of pretreated wood in terms of wood conversion, mechanical properties, optical properties, electrical properties, and acoustic characteristics. The aim is to provide a reference for the selection, development, and application of wood pretreatment methods, and to lay a foundation for the green, low-carbon, and efficient utilization of woody resources.
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