| 李碧玉,王振,李帅霖,潘鹏宇,施建在,陈欣,张静楠,陈礼辉,鹿洪亮,李建国,张国强.浮选处理对烟梗机械浆性能的影响[J].中国造纸,2026,45(7):164-173 |
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| 浮选处理对烟梗机械浆性能的影响 |
| Effect of Flotation Treatment on the Properties of Tobacco Stem Mechanical Pulp |
| 收稿日期:2026-01-05 修订日期:2026-03-20 |
| DOI:10.11980/j.issn.0254-508X.2026.07.018 |
| 关键词: 浮选 烟梗机械浆 匀度 SDS 尘埃度 |
| Key Words:flotation tobacco stalk mechanical pulp formation SDS dirt count |
| 基金项目:福建省引导性项目(2023H0008)。 |
| 作者 | 单位 | 邮编 | | 李碧玉* | 1福建农林大学材料工程学院,植物纤维功能材料国家林业和草原局重点实验室,福建福州,350108 | 350108 | | 王振 | 1福建农林大学材料工程学院,植物纤维功能材料国家林业和草原局重点实验室,福建福州,350108 | 350108 | | 李帅霖 | 1福建农林大学材料工程学院,植物纤维功能材料国家林业和草原局重点实验室,福建福州,350108 | 350108 | | 潘鹏宇 | 2浙江华邦新材料有限公司,浙江衢州,324000 | 324000 | | 施建在 | 3福建金闽再造烟叶发展有限公司,福建福州,350600 | 350600 | | 陈欣 | 4福建中烟工业有限责任公司,福建厦门,361012 | 361012 | | 张静楠 | 3福建金闽再造烟叶发展有限公司,福建福州,350600 | 350600 | | 陈礼辉 | 1福建农林大学材料工程学院,植物纤维功能材料国家林业和草原局重点实验室,福建福州,350108 | 350108 | | 鹿洪亮* | 4福建中烟工业有限责任公司,福建厦门,361012 | 361012 | | 李建国* | 1福建农林大学材料工程学院,植物纤维功能材料国家林业和草原局重点实验室,福建福州,350108 | 350108 | | 张国强* | 4福建中烟工业有限责任公司,福建厦门,361012 | 361012 |
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| 摘要:本研究以烟梗机械浆为原料,探讨了浮选处理工艺对浆料性能的影响;系统分析了表面活性剂十二烷基硫酸钠(SDS)用量、浮选时间及浮选次数等关键参数对浆料性能的影响规律。结果表明,浮选处理可有效去除浆料中的杂细胞,显著改善纸张综合性能。随着SDS用量从0.1%增加至3.0%,纸张白度逐步提升,尘埃数量(ND)与尘埃面积(SD)持续下降,但SDS用量超过1.0%后,改善趋势减缓;浮选时间从15 min延长至60 min时,杂细胞去除率有所上升,但超过30 min后,浮选得率显著下降;增加浮选次数可降低尘埃度,但2次以上浮选会使得率显著降低。在优化条件下(SDS用量1.0%、浮选时间30 min、浮选2次),烟梗机械浆的浮选得率为80.91%,制得纸张的ND为36 218 PCS/m²,SD为821 mm²/m²,白度提升至63.2%,匀度指数下降至78.76。 |
| Abstract:In this study, tobacco stalk mechanical pulp was adopted as the raw material to investigate the effect of flotation treatment on pulp properties, and the influence laws of key flotation parameters including sodium dodecyl sulfate (SDS) dosage, flotation duration, and flotation cycles were systematically analyzed. The results showed that flotation could effectively remove non-fibrous cells from pulp and greatly improve the comprehensive properties of the resultant cigarette paper. When the SDS dosage increased from 0.1% to 3.0%, the brightness of paper increased gradually, while the number of dirt specks (ND) and total dirt area (SD) decreased continuously. Nevertheless, the improvement effect became marginal once the SDS dosage exceeded 1.0%. Extending the flotation duration from 15 min to 60 min raised the removal rate of non-fibrous cells, yet the flotation pulp yield decreased dramatically after 30 min of flotation. Increasing flotation cycles was beneficial to reducing dirt count, whereas conducting more than two flotation cycles would cause a remarkable loss of pulp yield. Under the optimized flotation conditions (1.0% SDS dosage, 30 min flotation time, and two flotation cycles), the flotation yield of tobacco stem mechanical pulp was 80.91%, the ND and SD of the prepared cigarette paper were 36 218 PCS/m² and 821 mm²/m², respectively. Meanwhile, the brightness of the paper incresed to 63.2%, the formation index dcreased to 78.76. |
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