摘要
采用不同浓度的低分子量水溶性三聚氰胺－甲醛树脂溶液浸渍泡桐木材，并对其进行压缩。结果表明：浓度为６％的ＭＦ树脂处理的泡桐压缩木在室温水中几无回弹，而用２５％的ＭＦ树脂处理的压缩木试样，即使在沸水中也很少回弹。而且，２５％ＭＦ树脂处理的试样在压缩率为５０％时，表面硬度可从０．１２２ＭＰａ增加到０．
Methods to maximize wood surface hardness and wood dimensional stability inc lude various combinations of compression, heating, and chemical treatments. In this study, paulownia wood was treated with different concentration of low molecular weight(mol wt 350～380), water soluble melamine formaldehyde resin, being compressed while heated. The results showed that wood specimen treated with 6% resin solution retained almost complete fixation when soaked in room temperature water, while those treated with 25% resin solution retained fixation in boiling water. Moreover, the surface hardness increased from 0.122 MPa to 0.366 MPa when the wood was treated with 25% resin solution and 50% compression.
出处
《木材工业》
北大核心
1996年第6期15-18,共4页
China Wood Industry
关键词
泡桐
三聚氰胺
甲醛树脂
压缩木
回弹率
制材
Paulownia
Melamine formaldehyde resin
Compressed wood
Recovery
Surface hardness
