Properties of water steam-treated maple wood (Acer pseudoplatanus L.).

IF 0.9 4区农林科学 Q3 MATERIALS SCIENCE, PAPER & WOOD

Wood Research Pub Date : 2020-12-16 DOI:10.37763/wr.1336-4561/65.6.865876

I. Novák, A. Kleinová, I. Janigová, M. Mičušík, J. Sedliačik, M. Šlouf, P. Bekhta, J. Matyasovsky, P. Jurkovič

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Abstract

The hydrothermal treatment of maple (Acer pseudoplatanus L.) wood by steam represents the modification method with the effective heat transfer, which can improve industrially significant properties of wood, i.e. its color, hydrophobicity and subsequently dimensional stability. The maple wood was modified by steam at 125°C during 8 hours, and at pressure of 0.18 MPa. The water contact angle of steam-treated maple wood increased from 44.9° (for untreated maple wood) to 55.3° (for steam-treated maple wood), and the stability of water drop on steam-treated maple wood surface increased. FTIR spectra show an increase in C=O and glycoside bonds concentration on the surface of steam-treated maple wood, but the concentration of C-O-C groups decreased. SEM micro photos confirmed the deformation and shrinking of maple wood cells due to steam treatment. XPS measurements confirmed, that the concentration of oxygen as well as C=O and C-O-O groups on the surface of steam-treated maple wood showed a slight decrease in comparison with pristine wood sample.

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水蒸汽处理枫木(Acer pseudoplatanus L.)的性能。

用蒸汽对枫木进行水热处理是一种有效传热的改性方法，可以改善木材的工业重要性能，即木材的颜色、疏水性和随后的尺寸稳定性。在0.18 MPa的压力下，在125℃下蒸8小时对枫木进行改性。水蒸气处理后的枫木的水接触角从44.9°(未处理枫木)增加到55.3°(处理枫木)，水蒸气处理后的枫木表面水滴的稳定性增加。红外光谱分析表明，蒸汽处理后的枫木表面C=O和糖苷键的浓度增加，但C-O-C基团的浓度降低。SEM微照片证实了枫木细胞在蒸汽处理后的变形和收缩。XPS测量证实，与原始木材样品相比，蒸汽处理后的枫木表面的氧浓度以及C=O和C-O-O基团的浓度略有下降。

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来源期刊

Wood Research 工程技术-材料科学：纸与木材

CiteScore

2.40

自引率

15.40%

发文量

审稿时长

5.4 months

期刊介绍： Wood Research publishes original papers aimed at recent advances in all branches of wood science (biology, chemistry, wood physics and mechanics, mechanical and chemical processing etc.). Submission of the manuscript implies that it has not been published before and it is not under consideration for publication elsewhere.