粉单竹化学组分、纤维形态及硫酸盐法蒸煮工艺研究

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中图分类号：TS743+.1 文献标识码：A DOI： 10.11980/j.issn.0254-508X.2026.04.013

Study on the Chemical Composition，Fiber Morphology，and Kraft Pulping Process of Bambusa chungi

LU Jiange LI Bingyun*LI Hailong （ScholofLightIndustryandEnginering，SouthChina UniversityofTechnology，Guangzhou，GuangdongProvince，50640） （*E-mail：byli@scut.edu.cn）

Abstract：Inthisstudy，6-montoldBambusachungiasselectedasthresearhobect，itschmicalcompositionandfiberoology weredeterinddalyd，ndealprsdiofotaftplpigmodesead，tovesiteiali ofyoungBambusachungifrpulpndpaperproduction.Theresultsindicatedthat6montholdBambusachungi hadahighholocelulose content of 75.98% ，and a low benzene-alcohol extractives content of 1.87% ，and the fiberlength-width ratio was 120. Its chemical compositionandfiber morphologymet therequirements forpulpfeedstock．Underfixed conditions of the heating-up timeof 2h ，and the liquid-tosolid ratio of 1：4 ，theoptimizedkraft pulping processparametersdetermiedviasingle-factor andorthogonalexperiments were the alkali dosage （based on NaOH） of 19% ，the sulfidity （based on NaOH） of 25% ，the maximum temperature of 150 °C ，the holding time of 2h .Under these conditions，the pulp had Kappa number of 23.8，and viscosity of 1201mL/g ，and sheet achieved breaking length of 5.32km ，tearing index of 11.9mN⋅m2/g ，and bursting index of 3.42kPa⋅m2/g . The pulp and sheet exhibited good overall performance.

Key words：Bambusa chungii;chemical composition； fiber morphology； kraft pulping

我国具有得天独厚的竹材资源优势，竹林总面积达752.70万 hm2 ，占全球竹林面积的 25% ，且竹材具有分布范围广、生长速度快、可再生性强的特点，其经一次栽培可持续利用，具备良好的开发利用价值-2]。（剩余14898字）