摘要
研究了阳离子淀粉在不同种类的草浆上的吸附行为. 结果表明: 草浆(蔗渣化学浆和麦草化学浆) 比木浆更有利于原淀粉的吸附; 阳离子淀粉的吸附速率和吸附率由草浆种类所决定; 原淀粉在麦草化学浆上的吸附率随打浆度升高而降低,而阳离子淀粉的情况则与此相反;原淀粉和阳离子淀粉在蔗渣机械浆上的吸附率都较低. 不同浆种的纤维形态特征和表面电荷密度的差异可解释上述结果.
Adsorption behaviors of three starches with different D.S. were investigated on three non wood pulps. The results indicated that non wood pulps were beneficial for the adsorption of natural starch compared to wood pulps. The adsorption rates and amounts of cationic starches to non wood pulps depended mainly on characteristics of the pulps, hardly on D.S. of the starches. The increase in beating degree of wheat straw pulps resulted in the decrease in adsorption ratio of natural starch and, conversely, the increase in adsorption ratio of cationic starches to the pulps. The adsorption ratio of natural starch and cationic starches onto bagass mechanical pulp were lower than onto bagass chemical pulp. These results may be explained by the differences in morphology properties and surface charge densities of the pulps.
出处
《福建师范大学学报（自然科学版）》
CAS
CSCD
1999年第4期61-65,共5页
Journal of Fujian Normal University：Natural Science Edition
基金
福建省自然科学基金
关键词
造纸
草浆
阳离子淀粉
吸附机理
湿部添加剂
papermaking, non wood pulps, cationic starches, adsorption mechanism
