|
二维码（扫一下试试看！） |
| Study on the Preparation of Dissolving Pulp from Bamboo Resources and Optimization of Production Process |
| Received:February 11, 2025 Revised:April 02, 2025 |
| DOI：10.11980/j.issn.0254-508X.2025.08.015 |
| Key Words:moso bamboo dissolving pulp degree of polymerization reactivity α-cellulose |
| Fund Project:福建省引导性项目（2023H0008）。 |
|
| Hits: 3003 |
| Download times: 1334 |
| Abstract:This study employed the pre-hydrolysis kraft (PHK) process to prepare dissolving pulp from moso bamboo. It analyzed the correlation mechanism between the degree of polymerization (DP) of the dissolving pulp and its performance indicators， as well as the effects of acid and activator treatment on these performance indicators. The results showed that during the PHK cooking-bleaching process， the DP of the bamboo dissolving pulp should be controlled at approximately 463. At this DP， the obtained pulp exhibited an ash content of 0.12%， an α-cellulose content of 91.3%， and a pentosan content of 3.29%， with reactivity filtration times of 178 s (9 mL CS₂) and 98 s (11 mL CS₂). Furthermore， replacing the P (peroxide) bleaching stage with an A (acid) treatment stage reduced the ash content of the bamboo dissolving pulp product to 0.07%， increased the α-cellulose content to 92.6%， and decreased the pentosan content to 2.62%， leading to a significant improvement in product quality indicators. On this basis， the addition of an activator treatment stage further enhanced the reactivity of the bamboo dissolving pulp. |
| View Full Text HTML View/Add Comment Download reader |