全封闭分级筛选对竹浆纤维特性及纸张性能的影响

打开文本图片集

关键词：本色竹浆；分级筛选；纤维质量；打浆；纸张性能中图分类号： TS749+ . 3 文献标识码：A DOI：10. 11980/j. issn. 0254-508X. 2025. 05. 009

Effects of Fully Enclosed Classification Screening on the Characteristics of Bamboo Pulp Fibers and Paper Properties

WANG Xu1 LUO Qing1，* HU Jiangtao2 XU Yongjian1 WANG Xinyu1 LIU Yukai1 LIU Yuxing1 （1. College of Bioresources Chemical and Materials Engineering，National Demonstration Center for Experimental Light Chemistry Engineering Education，Shaanxi University of Science & Technology，Xi’an，Shaanxi Province，710021； 2. Welbon Schoeller New Materials Co.，Ltd.，Huangshan，Anhui Province，245200） （*E-mail：luoqing@sust. edu. cn）

Abstract： This study focused on unbleached bamboo pulp，using a Bauer Mc Nett fiber classifier to perform fully enclosed classification screening of bamboo pulp to obtain long fibers（R16）and short fibers（P16）. Using PFI refining for beating，the lignin content，fiber quali‐ ty，and pulping characteristics of long and short fibers were analyzed to explore the effects of long and short fibers beating and mixing pro‐ cesses on the properties of bamboo pulp paper. The results showed that the lignin content of P16 was higher than that of R16. During the beating process，the changes of fiber morphology of P16 were primarily characterized by the rupture of primary and secondary walls，whereas R16 was mainly dominated by fuzzing on the surface. The average fiber length of R16 and P16 decreased，while the content of fine fibers， water retention value，and crystallinity all increased. The optimal beating degrees for R16 and P16 were 32 and 36o SR，respectively. The resulting paper had a bursting index of 5.65kPa⋅m2/g ，a tensile index of 76.0N⋅m/g ，and a tearing index of 17.7mN⋅m2/g ，all of which were better than unclassified bamboo pulp paper.

Key words：unbleached bamboo pulp；classification screening；fiber quality；beating；paper properties

我国是纸张生产和消费大国。（剩余15195字）