应用EDAX能谱仪SQ技术测定CCA防腐剂在木材中的渗透曲线

DETERMINING THE PENETRATION CURVE OF CCA PRESERVATIVE SELECTED WOOD SPECIES BY SEM-EDAX-SQ-TECHNIQUE

了解防腐剂在木材中的渗透情况传统的显色剂指示方法虽然能够直接观察到防腐剂的渗透深度,但无法了解防腐剂在木材各组织中的分布,更不能了解防腐剂在各层深度中的含量。 EDAX9100能谱仪可对试样进行定点、线扫描以及面扫描分析,对元素成分分析可以定性、定量。进行全定量分析时试样的几何条件要求比较严格,分析面必须光滑。

Since EDAX is an accessory of SEM and good at microanalysing, it may be a capable instrument for studying the penetration of preservative and infusion in wood. It is very important to study the penetration and distribution of preservative in wood for compounding the preservative and adopting the technological process. This paper introduces a method of studying the penetration and distribution of CCA preservative by SEM-EDAX-SQ-Technique. We select six wood species (Populus tomentosa, Pinus massoniana, Larix olgensis, Ulmus punmila, Pseudotsuga menziesii and Picea jezoensis), one bamboo species (Phyllostachys pubescens) and adopt two technological processes for comparison. The penetration curves are obtained as a result.