STUDY ON THE KRAFT PULPING PROPERTIES OF SHORT-ROTATION POPLAR

摘要：

The short-rotation poplar has a high biomass production in the first several years, and it may be one kind of good fiber source alternatives to meet the requirement of raw materials for China pulp and paper industry. In this study, the chemical components and the kraft pulping properties of five different kinds of short-rotation poplars were determined. The results show that the short-rotation poplars of 03-04-111 and 108 have relatively lower contents of alcohol-benzene extractive and 1％ NaOH extractive, and the total lignin content, which are good for their kraft pulping properties. The optimized alkaline dosages are 19％ Na2O and 20％ sulfide for the kraft cooking of short-rotation poplar. Under these conditions, the pulp yield is about 34％-39％ and the kappa number is about 18. The pulping properties of short-rotation poplar marked as 03-04-111 and 108 are better than that of others. There is no big difference of physical properties for five poplar kraft pulps, and the poplar 03-04-111 has relatively better strength properties. The fiber average length of short-rotation poplars is about 0.53-0.6 mm by the L&W fiber tester.

关键词： short-rotation poplar chemical components kraft pulping pulping properties

作者: Hongjie Zhang Ming Lei Huiren Hu QinjunHuang Xiaohua Su

作者单位: Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, Tianjin, 300 Research Institute of Forestry, Chinese Academy of Forestry, Key Laboratory of Tree Breeding and Cul

会议类型: 国际会议

会议名称: 16th International Symposium on Wood,Fiber and Pulping Chemistry(第十六届木材、纤维及制浆化学国际会议)

会议地点: 天津

会议语种:英文

页码: 646-650

在线出版日期: 2011-06-08（万方平台首次上网日期，不代表论文的发表时间）