The effect of sectioning and ultrasonication on the mesoporosity of poplar tension wood
The effect of sectioning and ultrasonication on the mesoporosity of poplar tension wood
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DOI：
10.1007/s00226-017-0890-0
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发表时间：
2017-01
影响因子：
3.4
通讯作者：
Shanshan Chang;F. Quignard;Bruno Clair
中科院分区：
文献类型：
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作者：
Shanshan Chang;F. Quignard;Bruno Clair
人们对了解具有凝胶层（G 层）的纤维在张力木材中产生张力应力的兴趣日益浓厚，人们的注意力集中在该层的具体作用上。为了将其与其他壁层的贡献区分开来，通过超声波处理分离木材部分的 G 层。本研究的目的是使用氮气吸附-解吸分析来评估切片和超声波处理对张力木材中孔率的影响。结果表明，使用超声波分离 G 层的过程强烈影响其介孔率。大多数损伤是在切片过程中发生的，而不是 15 分钟超声波处理造成的。
Increasing interest in understanding tension stress generation in tension wood with fibres having a gelatinous layer (G-layer) has focused attention on the specific role of this layer. To distinguish its contribution from those of other wall layers, the G-layer of wood sections was isolated by ultrasonication. The aim of this study was to assess the effect of sectioning and of the ultrasonic treatment on the mesoporosity of tension wood using nitrogen adsorption–desorption analysis. The results showed that the process of isolating the G-layer using ultrasonication strongly affects its mesoporosity. Most damage was found to occur during sectioning rather than as a result of the 15-min ultrasonic treatment.