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Study on the Chemical Composition, Fiber Morphology, and Kraft Pulping Process of Bambusa chungii
Received:January 16, 2026  Revised:February 06, 2026
DOI:10.11980/j.issn.0254-508X.2026.04.013
Key Words:Bambusa chungii  chemical composition  fiber morphology  kraft pulping
Fund Project:广东省科技计划项目(2024B1212050001)。
Author NameAffiliationPostcode
LU Jiange* School of Light Industry and Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640 510640
LI Bingyun* School of Light Industry and Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640 510640
LI Hailong School of Light Industry and Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640 510640
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Abstract:In this study, 6-month-old Bambusa chungii was selected as the research object, its chemical composition and fiber morphology were determined and analyzed, and the optimal process conditions for the kraft pulping method were researched, to investigate the suitability of young Bambusa chungii for pulp and paper production. The results indicated that 6 month old Bambusa chungii had a high holocellulose content of 75.98%, and a low benzene-alcohol extractives content of 1.87%, and the fiber length-width ratio was 120. Its chemical composition and fiber morphology met the requirements for pulp feedstock. Under fixed conditions of the heating-up time of 2 h, and the liquid-to-solid ratio of 1∶4, the optimized kraft pulping process parameters determined via single-factor and orthogonal experiments were the alkali dosage (based on NaOH) of 19%, the sulfidity (based on NaOH) of 25%, the maximum temperature of 150 ℃, the holding time of 2 h. Under these conditions, the pulp had Kappa number of 23.8, and viscosity of 1 201 mL/g, and sheet achieved breaking length of 5.32 km, tearing index of 11.9 mN·m²/g, and bursting index of 3.42 kPa·m²/g. The pulp and sheet exhibited good overall performance.
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