摘要
以爆破法对废旧刨花板进行再生刨花分离,并对再生刨花性质进行表征。研究表明:爆破处理可以破坏刨花板胶层结合,同时对木材刨花产生一定的影响,随着爆破压力的增大,木材的微观构造破坏增大;蒸汽爆破处理后纤维素结晶度提高;红外光谱中,在2850cm-1、2920cm-1处,吸收峰变化明显,纤维素和半纤维素官能团则无明显变化;爆破处理改变了胶粘剂与防水剂在刨花表面的分布;有机元素中N元素含量降低。
The characters of regenerated particles which come from the used particle board with steam explosion treated were studied. The results showed that： steam explosion could destroy the glue layer between the particles and micro-appearance of wood simultaneously. The degree of damage increased with the vapor pressure raised;The cellulose crystallinity rised after steam explosion, FTIR spectra showed that, at 2850cm^-1, 2920cm^-1 band the absorption peak changed significantly whereas cellulose and hem1cellulose had no variation. The adhesive and water proof agent were redistributed after steam explosion, and the element N content decreased.
出处
《木材加工机械》
2010年第1期5-7,23,共4页
Wood Processing Machinery
基金
林业科技支撑计划:废弃木质材料的再生材料制造技术
项目编号:2006BAD18B0904
北京市教委共建项目:废弃木质材料综合利用技术研究
关键词
爆破
再生刨花
微观构造
结晶度
steam explosion
regenerated particle
micro-appearance
cellulose crystallinity
