Supercritical fluid application to high performance treatment of wood and composite materials

超临界流体在木材和复合材料高性能处理中的应用

• 批准号: 09660184
• 负责人: TSUNODA Kunio
• 金额: $ 1.47万
• 依托单位: KYOTO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1998
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09660184/
• 关键词: supercritical fluid; high performance treatment; enhanced resistance to decay fungi and termites; 二酸化炭素; 防腐薬剤; 保存処理

Supercritical fluids have intermediate properties between liquid and gas, and can be a suitable carrier of preservative ingredients into wood and/or composite materia without any mechanical damage. The current investigations were related to examine treatability of Japanese softwood species (Sugi, Akamatsu and Karamatsu) with supercritical carbon dioxide, effects of the treatment on the mechanical properties and decay resistance of the treated materials. Following results were obtained so far.(1) Results varied with wood species. A permeable wood species, Sugi sapwood did not sustain any serious mechanical damage, while a refractory wood species, Karamatsu heartwood lost its bending' strength to some extent.(2) These findings suggested that treatment conditions should be carefully chosen to reduce pressure gradients across the transverse direction.(3) Any composite material did not sustain any mechanical damage through super-critical fluid treatment.(4) Incorporation of a fungicide in supercritical carbon dioxide definitely enhanced decay resistance of the treated materials in comparison with the untreated materialsIn conclusion, supercritical fluid was proved applicable to preservative treatment of wood and composites, although much further investigation is needed to establish its treatment technology.

超临界流体在液体和气体之间具有中间特性，并且可以成为木材和/或复合材料中的防腐剂成分的合适载体，而无需任何机械损坏。当前的研究与检查日本软木物种（Sugi，Akamatsu和Karamatsu）具有超临界二氧化碳的治疗性有关，治疗对机械性能的影响以及处理过的材料的衰减耐药性。到目前为止，获得了以下结果。（1）结果随木材物种而异。 Sugi Sapwood是一种可渗透的木材物种，并不能承受任何严重的机械损害，而耐火木材的Karamatsu Heartwood在某种程度上失去了弯曲的强度。（2）这些发现表明，应仔细选择治疗条件以减少横向跨方向的压力梯度。与未经处理的材料结论相比，经过处理的材料的衰减耐药性绝对增强了，事实证明，超临界液适用于对木材和复合材料的防腐处理，尽管需要进行更多进一步的研究来建立其治疗技术。

项目成果

D.Hernawan: "New technology for manufactirig high-strength wood cement composites by using supercufical fluid of carbon deoxide" Proc 2nd Int.wood Sci.Seminar,Serpong Indonesia,Nov 6-7,1998. B29 (1998)

D.Hernawan：“利用脱氧超临界流体制造高强度木水泥复合材料的新技术”Proc 2nd Int.wood Sci.Seminar，Serpong Indonesia，1998 年 11 月 6-7 日。

K.Tsunoda: "Supercritical fluid application to wood preservarim (2)Laboratory evaluation of decay resistance of treated wood" Proc 4th Pacefic Rim Bis-Based Conposifo Sim.340-344 (1998)

K.Tsunoda：“超临界流体应用于木材防腐剂 (2) 处理过的木材的耐腐烂性的实验室评估”Proc 4th Pacefic Rim Bis-Based Conposifo Sim.340-344 (1998)

K.Tsunoda: "Suprecufical fluid application to wood preservation.(1)Principle of treatment and mechanical piopathe of treated wood" Pro.4th Pacific Rim Bis-Based Composites Symp.Bogor,Indonesia,Nov 2-Si 1998. 333-339 (1998)

K.Tsunoda：“Suprecufical 流体应用于木材保存。(1)处理原理和处理木材的机械 piopathe”Pro.4th Pacific Rim Bis-Based Composites Symp.Bogor，印度尼西亚，1998 年 11 月 2-Si 1998 年。333-339 (

K.Tsunoda, T.Yoshimura, M.Inoue and A.Adachi: "Supercritical fluid application to wood preservation (2) Laboratory evaluation of decay resistance of treated wood" Proc.4th Pacific Rim Bio-Based Composites Sym.340-344 (1998)

K.Tsunoda、T.Yoshimura、M.Inoue 和 A.Adachi：“超临界流体在木材保存中的应用 (2) 处理过的木材的耐腐烂性的实验室评估”Proc.4th Pacific Rim Bio-Based Composites Sym.340-344（

K.Tsunoda: "同上 (2)Latoratory evaluation of decay resis fance of treate wood" 同上. 340-344 (1998)

K. Tsunoda：“同上。(2)对待木抗腐性的实验室评价”同上 340-344 (1998)。