摘要
为了从理论上对木材的宏观及微观空隙进行评价,本文首次利用吸湿体积变化率(MAV)法计算了木材细胞壁的空隙率,并与BET吸附法进行比较发现,利用MAV法计算木材细胞壁的空隙率为7%,比表面积为277m2/g;利用BET吸附理论计算木材细胞壁的比表面积为238m2/g。计算表明,木材细胞壁具有介观孔隙及巨大的比表面积。
In order to estimate interstitial structure of wood theoretically from macroscopic and microscopic,interstitial rate of wood cellwall was calculated firstly using volume varied rate methods of moisture absorption（MAVVM）.The interstitial rate was 7%,and the specific surface area of wood cellwall is 277m2/g.At the same time,it was calculated by BET formula,the value is 238m2/g.This study illustrates there were huge specific surface area and mesoscopic small openings existed in wood cellwall.
出处
《内蒙古农业大学学报（自然科学版）》
CAS
北大核心
2009年第3期252-257,共6页
Journal of Inner Mongolia Agricultural University(Natural Science Edition)
基金
内蒙古农业大学博士基金项目(K17609)
