辐射技术及其在木材科学研究中的应用

辐射化学是研究电离辐射与物质相互作用时产生的化学效应的化学分支学科.木材是一种天然生成的由几种高聚物(纤维素、半纤维素、木质素、抽提物)组成的有机复合体, 不同的高聚物在辐射过程中会产生辐射降解、交联等.文中主要概括了辐射加工的发展、特点、原理、辐射剂量, 并详细阐述了辐射加工在木材科学领域中的应用及进展, 主要包括木材辐射干燥、木塑复合材的辐射制备、射线辐射在木材改性中的应用、木材自由基对木材耐候性及辐射对木材各化学组分的影响; 分析了辐射技术在木材科学领域中的应用与发展趋势.

Radiation Techniques and Its Application to Wood Science

Radiation chemistry refers to the new quick chemical reaction triggered by particles on chemical company turning into free radicals when high-energy radiation effects on materials and break the original state of equilibrium. This article summarized the development, principle, characteristics of radiation processing as well as the choice of radiation dosage for the processing, and expounded the application of radiation processing in the field of wood science and its progress, mainly including radiation drying of wood, radiation preparation for wood-plastic composites, application of ray radiation to wood modification, effect of free radicals on wood weathering resistance, and effect of radiation on chemical components of wood. Wood is a natural organic complex composed of several polymers (cellulose, semicellulose, lignin, and extracts), and different polymers would go through changes such as radiation degradation, crosslinking, etc., in the process of radiation. And the application of radiation technology in wood science and its development tendency were also prospected.