不同树龄湿加松原料特性及其制浆性能研究

作者：Huang Jiangtao; Xu Jun^*; Li Jun; Li Yiliang; Lin Changming; Liao Sihuang; He Zhuocheng; Huang Jie

来源：China Pulp and Paper, 2023, 42(1): 44-50.

DOI：10.11980/j.issn.0254-508X.2023.01.007

• chemical composition
• fiber morphology
• kraft cooking
• pinus elliottii×p. caribaea
• tree age

The chemical composition and fiber morphology of 6 kinds of fast-growing pinus elliottii×p. caribaea with different ages from 4 to 14 years were studied，and their kraft pulping properties at same cooking conditions were evaluated. The results showed that the holo-cellulose content of pinus elliottii× p. caribaea gradually increased with the increasing of tree ages，and was stabilized at（74±3）% with tree age more than 10 years. Lignin content increased slightly in the early growth stage of the trees，whereas decreased after tree age more than 8 years. In addition，the phenyl ethanol extraction content among the few components increased rapidly after tree age more than 10 years，whereas other components content changed irregularly. The average fiber length of pinus elliottii×p. caribaea wood was 2~3 mm，and the draw ratio was more than 58，which gradually increased with the increase of tree ages. Meanwhile，the pulp from pinus elliottii×p. caribaea with a tree age more than 10 years had a lower kappa value and a higher viscosity，which were more economic efficient to pulping and paper making. ? 2023 China Technical Association of Paper Industry.

• 单位
  华南理工大学