热压温度对脲醛树脂浸渍杨木压缩材工艺与性能的影响  

Influence of the hot-pressing drying temperature on technology and performance of Poplar wood impregnated with urea-formaldehyde resin

作　　者：孙照斌[1] 何玉婵[1] 张丽明 元海广 杨丽虎 

机构地区：[1]河北农业大学林学院,保定071000 [2]河北爱美森木材加工有限公司,邯郸056800

出　　处：《木材加工机械》2015年第1期8-12,共5页Wood Processing Machinery

基　　金：河北省高等学校科学技术研究项目资助(Z2011170);河北省科技支撑计划项目(项目编号:14274001D)

摘　　要：对脲醛树脂浸渍杨木进行热压压缩和干燥定型工艺试验,研究热压温度对其干燥工艺和性能的影响。结果表明:热压温度对浸渍改性杨木压缩材的干燥工艺和性能影响显著,随温度升高,干燥速度加快、变形回复率降低、吸水厚度膨胀率逐渐减小、抗弯强度和抗弯弹性模量逐步降低,综合各项性能和干燥工艺,热压干燥温度取140℃为宜。The technical experiment of hot-pressing compression and deformation fixation of Poplar wood Impregnated with Urea- formaldehyde resin was carried out, and Influence of the hot-pressing temperature on technology and performance was discussed. The result shows that the drying speed were improved and deformation springback, but thickness swelling of water-absorbing, modulus of elasticity and the modulus of rupture decreased with increasing the temperature, the optimization hot-pressing temperature is 140℃.

关 键 词：热压温度 杨木 脲醛树脂 浸渍 性能 

分 类 号：TS653[轻工技术与工程]