Development of Production System of High-Performance Wood-Based Materials by Glue-Additive Treatment

胶添加剂处理高性能木质材料生产系统的开发

• 批准号: 08556028
• 负责人: IMAMURA Yuji
• 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 (A)
• 财政年份: 1996
• 资助国家: 日本
• 起止时间: 1996 至 1997
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08556028/
• 关键词: glu-additive treatent; decay resistance; termite resistance; incombustibility; wood-based material; XPS; boron; phenolic resin; フェノール樹脂; パーティクルボード; 合板; 耐虫性; 熱帯早生樹; 腐朽; シロアリ

The glue-additive treatment method is considered to be a practical approach which colud be easily introduced to commercial plants engaged in particleboard and plywood production saving cost and energy. When particleboards were treated by adding insecticides and fungicides to the adhesive-glue, the treated boards resisted effectively against to the virulent termite species, and inhibit effectively the decay by both brown-rot and white-rot fungi. SEM observations of the fractures surfaces presented visible evidence on glue-line failures which were caused by the active fungal invasion onto the surfaces of wood particles. Incorporation of fungicides in the glue was considered to be more effective against fungal growth by existence of toxicants around glue-line as well as their better distribution into the wood particles.Incombustibility of laminated-veneer-lumber (LVL) was attained by mixing ammonium pentaborate to the adhesive and pressing with heat-cure, and the relationship beteween the fire-proofing properties and the distribution of the chemicals was evaluated by analysing the positions of boron with X-ray Photo-Electron Spectroscopy (XPS).The particleboards with high dimensional stability and biological resistance were also produced by spray with a mixture of low molecular-weight phenol-formaldehyde (PF) resin and high molecular-weight PF resin. The distribution of low molecular-weight PF resin was detected by XPS analysis of Br which was bonded to the resin.

胶剂处理法被认为是一种切实可行的方法，可以很容易地推广到从事刨花板和胶合板生产的商业工厂，从而节省成本和能源。在胶粘剂中添加杀虫剂和杀菌剂处理刨花板，能有效地抵抗白蚁的危害，并能有效地抑制褐腐菌和白腐菌的腐朽。断口的SEM观察显示，胶合线失效是由于真菌主动侵入木材颗粒表面所致。在胶合剂中加入杀菌剂，可使有毒物质在胶合线周围存在，并能更好地分布在木材颗粒中，从而更有效地抑制真菌的生长。将五硼酸铵加入胶合剂中，通过热压固化，使单板层积材（LVL）具有阻燃性。并通过X射线光电子能谱（XPS）分析硼在耐火材料中的位置，评价了耐火材料的耐火性能与化学成分分布的关系采用低分子量酚醛树脂和高分子量酚醛树脂的混合物喷涂刨花板，制备了具有高尺寸稳定性和生物抗性的刨花板。通过XPS分析结合在树脂上的Br，检测了低分子量PF树脂的分布。

项目成果

Y.Imamura: "Distribution of Polymer in the Cell Walls and Its Effect on Decay Resistance in Wood-Composite" Biocontrol Science. (印刷中).

Y.Imamura：“聚合物在细胞壁中的分布及其对木材复合材料抗腐烂性的影响”生物防治科学（正在出版）。

Y.IMAMURA: "Durability of Wood and Wood-Based Materials. (in Japanese)" "Textbook of Wood Preservation" ed.Japan Wood Preserving Association. 416 (1998)

Y.IMAMURA：“木材和木质材料的耐久性。（日语）”“木材防腐教科书”编辑，日本木材防腐协会。

今村 祐嗣: "木材保存学入門" (社)日本木材保存協会, 416 (1998)

Yuji Imamura：“木材防腐简介”日本木材防腐协会，416（1998）

Y.Imamura: "Production Technology of High-Durable Wood-Based Materials by Incorporting Preservatives in the Glue" Proceedings of the First International Wood Science Seminar. (1996)

Y.Imamura：《在胶水中添加防腐剂的高耐用木质材料生产技术》首届国际木材科学研讨会论文集。

Y.Imamura: "Production Technology of High-Durable Wood-Based Materials by Incorporating Preservatives in the Glue" Proceedigns of the First International Wood Science Seminar. (1996)

Y.Imamura：“在胶水中加入防腐剂的高耐用木质材料的生产技术”第一届国际木材科学研讨会论文集。