马尾松木材纤维素相对结晶度的研究

›› 1984, Vol. 20 ›› Issue (3): 290-298.

马尾松木材纤维素相对结晶度的研究

孙成志谢国恩阮锡根尹思慈

中国林业科学研究院林产化学工业研究所；南京林学院

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1984-08-25 发布日期:1984-08-25

STUDIES ON THE RELATIVE CRYSTALLINITY IN THE WOOD CELLULOSE OF PINUS MASSONIANA

Sun Chengzhi,Xie Guoen,Ruan Xigen,Yin Sici

Research Institute of Chemical Processing and Utilization of Forest Products, Chinese Academy of Forestry;Nanjing College of Forestry

Received:1900-01-01 Revised:1900-01-01 Online:1984-08-25 Published:1984-08-25

摘要/Abstract

摘要： 马尾松木材纤维素的相对结晶度:X射线衍射法的CrI%是53.8%,红外光谱法的NO'KI和O'KI各为0.45和1.12,吸湿量为11%。随着球磨时间的增加,其结晶度逐渐下降;吸湿量增加。三种结晶度的值与球磨时间均可回归成直线;其中CrI%及NO'KI与球磨时间相关性好。人造纤维木浆和脱木素木粉的CrI%各为83.7%和81.4%。水浸和水煮木粉能提高和部分恢复其结晶度。X射线衍射法用峰高计算相对结晶度具有制样简单,重现性好等优点。NO'KI与CrI%相关性好。

Abstract: The degree of relative crystallinity of the wood cellulose in the stem of Pinus massoniana Lamb. Was determined by means of X-ray diffraction and infrared spectra. The relative crystallinity (CrI%) of the fomer is 53.8%, but the infrared ratio (NO'KI and O'KI) of the latter is 0.45 and 1.12 respectively. The moisture absorptivity of the ball-milled sample exposed for seven days at 65% R.H. and at the room temperature is about 11—13%.The relative crystallinity determined by X-ray diffraction method was found simpler and more reproducible than by infrared spectra method. The correlation of X-ray diffraction with NO'KI is better than with O'KI and a few relevant regression equations are also given.

孙成志谢国恩阮锡根尹思慈. 马尾松木材纤维素相对结晶度的研究[J]. , 1984, 20(3): 290-298.

Sun Chengzhi;Xie Guoen;Ruan Xigen;Yin Sici. STUDIES ON THE RELATIVE CRYSTALLINITY IN THE WOOD CELLULOSE OF PINUS MASSONIANA[J]. , 1984, 20(3): 290-298.