摘要
根据构树的纤维形态和化学组成以及制浆性能的摸索性试验,评估构树制浆的可行性,制定出适合构树制浆的硫酸盐-蒽醌法,并对此法设计L9(34)正交试验。得到结论如下:构树的综纤维素含量为82.09%,Klason木素含量为18.57%,纤维平均长度为863μm,长宽比为51.3,壁腔比为0.37,由化学组成和纤维形态来看,构树是比较适宜制浆的;影响构树制浆得率和卡伯值的主要因素是用碱量,其次是保温时间,硫化度影响最小。制浆的最佳工艺条件是:18%的用碱量,90 min的保温时间和24%的硫化度。
The feasibility of Broussonetia papyrifera pulping was evaluated, based on fiber morphology, chemical compositions and pulping properties in this paper. And the KP-AQ method suiting for pulping was made out. The L9（34） orthogonal experiment was planed. The results were as follows： The holocellulose content was 82.09~, the Klason lignin content was 18.57%, the average length of fibers was 863 μm, the length-width ratio was 51.3, and the ratio of cell wall thickness to cavity diameter was O. 37, so it was feasible for Broussonetia papyrifera to pulp; the alkali content was primary influencing factor of pulping, the next was retention time, the last was sulfidity, and the best conditions of pulping were 18% alkali content, retention lasting 90 minutes and 24% sulfidity.
出处
《经济林研究》
2007年第4期45-49,共5页
Non-wood Forest Research
基金
安徽农业大学创新团队资助
关键词
构树
纤维形态
化学组成
制浆
Broussonetia papyrifera
fiber morphology
chemical composition
pulping
