摘要
采用乙二醛为交联剂、乙二醇为助剂处理大青杨木材.结果表明,处理材尺寸稳定性和部分力学性能显著提高,当交联处理条件为φ(乙二醛)=15%,n(乙二醇)∶n(乙二醛)=1∶8时,处理材的抗胀(缩)率(ASE)达68.8%,阻湿率(MEE)达41%,顺纹抗压强度提高17.5%,抗弯弹性模量(MOE)提高31.5%,硬度提高50%以上,可以拓宽大青杨的使用范围.
The Populus ussuriensis Wood was modified by glyoxal and glycol cross-linking reagents. That was increased of wood dimensional stability and strength properties. When the modified tests were φ（glyoxal） = 15%, n （glycol） ： n （glyoxal） = 1 ： 8, modified wood＇ s anti-shrink efficiency （ ASE ） was 68.8%, its moisture excluding efficiency （MEE） was 41%. The compression strength increased by 17.5%, bending elastic modulus（MOE） by 31.5%, and hardness by 50%. The treated wood was as strong as some good hardwood.
出处
《华南农业大学学报》
CAS
CSCD
北大核心
2006年第3期73-75,共3页
Journal of South China Agricultural University
基金
"生物质材料科学与技术教育部重点实验室"开放基金课题资助(04-14)
关键词
乙二醛
大青杨
尺寸稳定性
力学性能
glyoxal
Populus ussuriensis
dimensional stability
strength properties
