Development of lower temperature cure phenol-formaldehyde resin modified with bark flour of picea glehnii as a cure accelerator

云杉树皮粉改性低温固化酚醛树脂固化促进剂的研制

• 批准号: 23780189
• 负责人: MIYAZAKI Junko
• 金额: $ 2万
• 依托单位: Hokkaido Research Organization
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23780189/
• 关键词: フェノール樹脂; 樹皮; アカエゾマツ; 木材接着; 熱圧温度; 木材; 接着; 硬化; 熱圧

The aim of this study is the development of phenol-formaldehyde (PF) resin capable of lower pressing temperature. The bark flour of picea glehnii (Sakhalin spruce) was added as a cure accelerator. Several PF resins were synthesized by different procedures. The effect of the addition of the bark flour on curing process of the PF resins was examined. The bond strength of the PF resins, which showed that cure was accelerated by the addition of the bark flour, was increased by the addition of the bark flour. However, for one of the PF resins, the shear strength of laminated wood pressed at 100℃ was increased by the addition of the bark flour, while the bond strength of laminated wood bonded with the other PF resins and pressed at 100℃ was not increased. The amount of methylene bridges was different among the chemical structures of these PF resins.

本研究旨在开发一种可降低压制温度的酚醛树脂。加入云杉（库页岛云杉）的树皮粉作为固化促进剂。采用不同的工艺合成了几种酚醛树脂。研究了树皮粉的加入对酚醛树脂固化过程的影响。PF树脂的粘结强度，这表明，固化被加速通过加入树皮粉，增加了通过加入树皮粉。但对于其中一种酚醛树脂，树皮粉的加入提高了100℃下压制的层积材的剪切强度，而与其它酚醛树脂胶合并在100℃下压制的层积材的胶合强度没有提高。这些PF树脂的化学结构之间的亚甲基桥的量是不同的。