| 脲醛树脂浸渍轻木改性工艺及性能研究 |
| |
| 引用本文： | 李君,陈琛.脲醛树脂浸渍轻木改性工艺及性能研究[J].林业机械与木工设备,2009,37(9):22-24. |
| |
| 作者姓名： | 李君 陈琛 |
| |
| 作者单位： | 西南林学院,西南山地森林资源保育与利用教育部重点实验室,云南,昆明,650224 |
| |
| 基金项目： | 国家自然科学基金重点项目(30630321):西南林学院木材科学与技术省级重点学科建设项目联合资助 |
| |
| 摘 要： | 对脲醛树脂（UF）浸渍改性轻木木材工艺、超临界CO2处理对轻木木材的浸渍性影响以及浸渍改性轻木木材的物理力学性能进行了研究。不同超临界CO2处理和浸渍工艺条件对改性材的增重率、体积湿胀率和顺纹抗压强度均有影响，与其素材相比，浸渍改性轻木木材的尺寸稳定性和力学性能显著提高，在显微镜下观察到有较多树脂分布在导管和木射线细胞中。
|
| 关 键 词： | 轻木 浸渍 改性工艺 性能分析 |
Study on Modification Technology and Properties of Ochroma Lagopus Swartz Impregnated with UF Resin |
| |
| LI Jun,CHEN Chen.Study on Modification Technology and Properties of Ochroma Lagopus Swartz Impregnated with UF Resin[J].Forestry Machinery & Woodworking Equipment,2009,37(9):22-24. |
| |
| Authors: | LI Jun CHEN Chen |
| |
| Institution: | (Southwest Forestry College, Key Laboratory of Southwest Mountain.Forest Resources Conservation and Utilization, Kunming Yunnan 650224, China) |
| |
| Abstract: | Ochroma lagopus swartz were impregnated with Urea-Formaldehyde resin （UF）, the impact on impregnation of different pre-treatment of supercritical CO2 treatment and the properties of modification were studied. The results showed that different impregnation and different pre-treatment conditions both have remarkable effect on the WPG （weight percent gain）, density, bulking of volume and the compressive strength. Besides, the physical and mechanical properties have improved significantly compared with the materials undealed.The microcosmic structure observed in the microscope showed that the resin distributed in vessel and ray. |
| |
| Keywords: | ochroma lagopus swartz impregnation modification technology performance analysis |
| 本文献已被 维普 万方数据 等数据库收录！ |
