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| Analysis of the Chemical Composition Structure of Arundo donax and Research on Its Pulping Process |
| Received:October 09, 2025 Revised:October 31, 2025 |
| DOI：10.11980/j.issn.0254-508X.2026.02.004 |
| Key Words:Arundo donax fibre morphology sulfate pulping |
| Author Name | Affiliation | Postcode | | LEI Jingyi* | Key Lab of Bamboo Fiber Materials Engineering of China Light Industry, Sichuan University of Science & Engineering, Yibin, Sichuan Province, 644000 | 644000 | | GUAN Xiuqiong* | Key Lab of Bamboo Fiber Materials Engineering of China Light Industry, Sichuan University of Science & Engineering, Yibin, Sichuan Province, 644000 | 644000 | | LIU Chun | Key Lab of Bamboo Fiber Materials Engineering of China Light Industry, Sichuan University of Science & Engineering, Yibin, Sichuan Province, 644000 | 644000 | | ZHANG Yongqi | Key Lab of Bamboo Fiber Materials Engineering of China Light Industry, Sichuan University of Science & Engineering, Yibin, Sichuan Province, 644000 | 644000 | | ZHAO Ju | Leshan Institute of Product Quality Supervision and Inspection, Leshan, Sichuan Province, 614000 | 614000 |
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| Abstract:This paper mainly analyzed the fiber morphology, chemical composition, and sulfate cooking process of Arundo donax. Firstly, the morphology of the raw materials of Arundo donax and the chemical composition of different parts were analyzed and compared. Secondly, the sulfate cooking process of Arundo donax was optimized through orthogonal experiments. The results showed that the average length of Arundo donax fiber was 1.050 mm, the average width was 23 μm, and the aspect ratio was 45.65. It was a better raw material for papermaking among Gramineous plants. The optimal cooking process conditions for the sulfate method were as follows, the maximum cooking temperature was 155 ℃, the alkali content was 18% (as Na2O), and the sulfidation degree was 18%. At this time, the yield of fine slurry was 40.91%, the effective alkali content was 10.20 g/L, and the Kappa value was 10.38. The average length of the fibers of Arundo donax pulp was 0.908 mm, the average width was 18.8 μm, and the length-width ratio was 48.30. |
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