| 速生杨硫酸盐浆中木素的存在对纤维素水解反应性能及其产物结构的影响(英文) |
| |
| 引用本文： | 科捷莉尼科娃NE,沙斯洛夫AA,侯永发. 速生杨硫酸盐浆中木素的存在对纤维素水解反应性能及其产物结构的影响(英文)[J]. 林产化学与工业, 1992, 0(3) |
| |
| 作者姓名： | 科捷莉尼科娃NE 沙斯洛夫AA 侯永发 |
| |
| 作者单位： | 俄罗斯科学院高分子化合物研究所 圣彼得堡199004(科捷莉尼科娃NE)，俄罗斯制浆造纸工业研究院 圣彼得堡198092(沙斯洛夫AA)，中国林业科学研究院林产化学工业研究所 南京210037(侯永发) |
| |
| 摘 要： | 对木素含量为0.9％～8.3％的速生杨硫酸盐浆进行了X-射线分析研究。利用多相水解方法测定了其反应性能。研究确定,浆中结晶纤维素含量取决于木素脱出程度并随着木素含量的降低而增加。木屑和浆中的纤维素结晶度相当高,而在脱木素过程中只呈微小变化。木素存在于多相水解反应过程中起着阻碍纤维素水解的作用,降低其反应速度常数。基于研究结果还提出了木素与纤维素结晶部分外表面联结的结论,并探讨了这种联结键的可能方式.
|
| 关 键 词： | 杨木 水解 纤维本素 |
EFFECTS OF LIGNIN IN SULFATE PULP FROM FAST GROWTHPOPLAR WOOD ON THEREACTIVITY OF CELLULOSEAND STRUCTURE OFITS PRODUCTS |
| |
| Kotelnikova N E. EFFECTS OF LIGNIN IN SULFATE PULP FROM FAST GROWTHPOPLAR WOOD ON THEREACTIVITY OF CELLULOSEAND STRUCTURE OFITS PRODUCTS[J]. Chemistry & Industry of Forest Products, 1992, 0(3) |
| |
| Authors: | Kotelnikova N E |
| |
| Abstract: | Pulp of poplar wood obtained by sulfate cooking containing lignin in the amount of 0. 9%-8. 3% was studied by X-ray diffractometry. Method of heterogeneous hydrolysis was used for determining its reactivity. The content of the crystalline fraction in lignocellulose depends on the lignin removal and increases with the decrease of the lignin content. The degree of crystallinity of cellulose in sawdust and pulp is fairly high and changes slightly with the lignin removal. Lignin plays a blocking role in heterogeneous hydrolysis and decreases its rate constant. It is suggested that lignin is bonded to cellulose on the outer surfaces of the crystalline part of cellulose fibril. Some possible variants of these bonds are discussed. |
| |
| Keywords: | Poplar wood Hydrolysis Lignocellulose |
| 本文献已被 CNKI 等数据库收录！ |
