Impregnation of wood with water using ultrasonic irradiation and water containing bulk nanobubbles

IF 3.1 2区 农林科学 Q1 FORESTRY
Toru Tuziuti, Kyuichi Yasui, Wataru Kanematsu
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引用次数: 0

Abstract

This paper investigates the impregnation of Japanese cedar (Cryptomeria japonica D. Don) with water using ultrasound irradiation, followed by immersion in water containing bulk nanobubbles (NBs). Cavitation bubbles generated during ultrasound irradiation mechanically remove extractives from the wood surface, enhancing the mass transfer of water into the wood. Water containing bulk NBs has a lower surface tension compared to pure water, enabling superior permeability into narrow spaces. However, the application of water containing NBs for wood impregnation post-sonication remains underexplored. In this study, wood was subjected to ultrasound irradiation at 38 kHz, followed by immersion in water containing bulk NBs, to determine the optimal sonication time and NB concentration for efficient impregnation. The results indicate that water uptake by the wood initially increases and then decreases with increasing NB concentration and sonication time. Optimal sonication time and NB concentration resulted in highly efficient impregnation.

Abstract Image

利用超声波辐照和含有大量纳米气泡的水对木材进行水浸渍
本文研究了利用超声波辐照对日本杉木(Cryptomeria japonica D. Don)进行水浸渍,然后将其浸入含有大量纳米气泡(NBs)的水中。超声波辐照时产生的空化气泡可以机械地去除木材表面的萃取物,促进水向木材的传质。与纯水相比,含有大量 NBs 的水表面张力较低,因此在狭窄空间中具有极佳的渗透性。然而,含 NBs 的水在木材浸渍后超声波处理中的应用仍未得到充分探索。在这项研究中,对木材进行了 38 千赫的超声波辐照,然后将其浸入含有大量 NBs 的水中,以确定有效浸渍的最佳超声时间和 NB 浓度。结果表明,木材的吸水率最初会随着 NB 浓度和超声时间的增加而增加,然后减少。最佳超声时间和 NB 浓度可实现高效浸渍。
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来源期刊
Wood Science and Technology
Wood Science and Technology 工程技术-材料科学:纸与木材
CiteScore
5.90
自引率
5.90%
发文量
75
审稿时长
3 months
期刊介绍: Wood Science and Technology publishes original scientific research results and review papers covering the entire field of wood material science, wood components and wood based products. Subjects are wood biology and wood quality, wood physics and physical technologies, wood chemistry and chemical technologies. Latest advances in areas such as cell wall and wood formation; structural and chemical composition of wood and wood composites and their property relations; physical, mechanical and chemical characterization and relevant methodological developments, and microbiological degradation of wood and wood based products are reported. Topics related to wood technology include machining, gluing, and finishing, composite technology, wood modification, wood mechanics, creep and rheology, and the conversion of wood into pulp and biorefinery products.
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