速生人工林桉树木材高温热处理力学性能研究

广西速生人工林桉树资源丰富，对其进行高温热处理能够改善其极易端裂、尺寸稳定性和耐久性差等缺陷；同时，其力学性能受到一定影响。为此，采用单因素试验方法对高温热处理桉树木材的力学性能进行研究。主要探讨了热处理温度对速生桉树木材力学性能的影响。结果表明：热处理温度在180~230℃范围内，随着热处理温度的升高，木材的静曲强度、弹性模量随之降低，经220℃处理的桉木试件的静曲强度(MOR)、弹性模量(MOE)分别比未处理的降低了43.18%和35.94%。高温热处理对速生人工林桉树木材的改性效果显著，同时其力学性能有所降低。

Mechanical Properties Study on High Temperature Heat Treatment of Plantation Eucalypt Wood

Guangxi has abundant resources plantation eucalypt wood,high temperature heat treatment can improve its disadvantages such as split,dimension stability and durability poor;but reduce it mechanical properties.So the author made a study on mechanical properties of high temperature heat treatment wood by the single factor method.The effect of temperature of heat treated on the mechanical properties heat-treated wood（plantation eucalypt） had been researched.The results indicated that with the heat treated temperature increased,the MOR and MOE of wood decreased significantly in heat treated temperature 165-210℃ range; treated wood in 220℃ compared with MOR and MOE of untreated wood,that separate was decreased by 43.18% and 35.94%.The results showed that decrease significantly used high temperature heat treatment to improve characteristics of plantation eucalypt wood,but mechanical properties decreased.