Production and improvement of high performance particleboards.

高性能刨花板的生产和改进。

• 批准号: 06660220
• 负责人: KAJITA Hiromu
• 金额: $ 1.09万
• 依托单位: KYOTO PREFECTURAL UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 1995
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-06660220/
• 关键词: Particleboard; Phenol-formaldehyde resin; Dimensional stability; Oriented strand board; decay resistance; termite resistance; 耐蟻性; 寸法安定性

Dimensional stabilization and biological resistance of particleboards made from phenol-formaldehyde (PF) resin-treated particles were investigated. For the treatment with a low-molecular-weight PF-resin, an one-step treatment method was employed. The method is to spray a mixture of the low-molecular-weight resin and the adhesive resin. The relationships between concentrations of PF-resin for impregnation and resin loading (RL) after heat curing were approximately on a straight line. To attain a 15% RL,about 8% resin solutions was used for Japanese cedar.Dimensional stability and mechanical properties of the PF-resin treated boards were affected considerably by the RLs, and as the RL increased, the antiswelling efficiency (ASE) value increased. Smaller molecular weights of resins gave larger ASE valus than larger ones at the same RLs. Results obtained from accelerated laboratory tests of biodegradation suggested that RLs worked well to enhance decay and termite resistance of the boards. For a brown-rot fungus, the weight loss was substantially reduced at 15 % RL,whereas attack was suppressed almost entirely even at low RLs for the white-rot fungus. The splaying treatment employed is a one-step treatment that is considered preferable for time saving and cost efficiency in board production. These boards are worthy of consideration for commercial application.

研究了酚醛(PF)树脂处理刨花板的尺寸稳定性和生物抗性。对于低分子量酚醛树脂的处理，采用了一步处理法。该方法是喷洒低分子量树脂和粘合剂树脂的混合物。浸渍用酚醛树脂的浓度与热固化后的树脂载量(RL)近似呈直线关系。为了获得15%的RL，日本柏木使用了约8%的树脂溶液。RLS对酚醛树脂处理的板材的尺寸稳定性和力学性能有很大影响，随着RL的增加，防胀效率(ASE)值增加。在相同的RLS下，相对分子质量较小的树脂比相对分子质量较大的树脂具有更大的ASE值。加速实验室生物降解试验的结果表明，RLS在提高板材的腐烂和白蚁抗性方面效果良好。对于褐腐菌，在15%RL时，重量损失显著减少，而对于白腐菌，即使在低RLS时，攻击也几乎完全被抑制。所采用的展开处理是一步处理，在板材生产中被认为是节省时间和成本效益的首选处理方法。这些电路板在商业应用上值得考虑。

项目成果

梶田 煕: "木材の接着・接着剤" 社団法人 日本木材加工技術協会, 249 (1996)

Hiroshi Kajita：《木材粘合剂和胶粘剂》日本木材加工技术协会，249（1996）

藤田 稔: "フーリエ変換画像解析処理によるパーティクルボードの配向解析" 材料(日本材料学会誌). 44. 267-272 (1995)

Minoru Fujita：“通过傅里叶变换图像分析处理进行刨花板的取向分析”材料（日本材料学会杂志）44. 267-272（1995）。

梶田 煕: "木質新素材ハンドブック" 木質新素材ハンドブック編集委員会(印刷中), (1996)

梶田浩：《新木质材料手册》新木质材料手册编辑委员会（正在出版），（1996）

Hu Sik Park: "Oriented Particleboards with Sugi Thinnings (Cryptomeria japonica) III-Effect of resin contents on physical and mechanical properties of the boards-., the Scientific Reports of Kyoto Prefectural University" Agriculture. No.47. 32-42 (1995)

Hu Sik Park：“带有杉树疏伐（Cryptomeria japonica）的定向刨花板 III-树脂含量对板的物理和机械性能的影响 -.，京都府立大学的科学报告”农业。

藤田 稔,佐伯 浩,梶田 煕: "フーリエ変換画像処理によるパーティクルボードの配向解析" 材料(日本材料学会誌). 44. 267-272 (1995)

Minoru Fujita、Hiroshi Saeki、Hiroshi Kajita：“通过傅立叶变换图像处理进行刨花板的方向分析”材料（日本材料学会杂志）44. 267-272（1995）。