| 贾甜甜,赖俊杰,李晋,黄方,吴珽,谢章红,黄六莲,苗庆显.机械精浆处理对竹材化学热磨机械浆漂白和纸浆性能的影响研究[J].中国造纸,2026,45(8):162-170 |
二维码（扫一下试试看！） |
| 机械精浆处理对竹材化学热磨机械浆漂白和纸浆性能的影响研究 |
| Study on Effects of Chemi-thermomechanical Refining on the Bleaching Performance and Pulp Properties of Bamboo CTMP |
| 收稿日期：2026-02-03 修订日期：2026-03-08 |
| DOI：10.11980/j.issn.0254-508X.2026.08.017 |
| 关键词: 竹材化学热磨机械浆 精浆处理 碱性H2O2漂白 白度 机械强度 |
| Key Words:bamboo chemi-thermomechanical pulp refining alkaline hydrogen peroxide bleaching brightness mechanical strength |
| 基金项目:国家重点研发计划项目（2023YFD2201902）；宜宾市竹产业重大攻关项目（YBZD202401）。 |
| 作者 | 单位 | 邮编 | | 贾甜甜* | 1福建农林大学材料工程学院,福建福州,350002 | 350002 | | 赖俊杰 | 1福建农林大学材料工程学院,福建福州,350002 | 350002 | | 李晋 | 1福建农林大学材料工程学院,福建福州,350002 | 350002 | | 黄方 | 1福建农林大学材料工程学院,福建福州,350002 | 350002 | | 吴珽 | 2中国林业科学研究院林产化学 工业研究所,江苏南京,210042 | 210042 | | 谢章红 | 3宜宾纸业股份有限公司,四川宜宾,644100
4四川省竹子制浆造纸工程技术研究中心,四川宜宾,644100 | 644100 | | 黄六莲* | 1福建农林大学材料工程学院,福建福州,350002 | 350002 | | 苗庆显* | 1福建农林大学材料工程学院,福建福州,350002 | 350002 |
|
| 摘要点击次数: 1095 |
| 全文下载次数: 114 |
| 摘要:以竹材化学热磨机械浆（CTMP）为原料，利用PFI磨浆机对其进行机械精浆处理，再经碱性H2O2漂白，探讨了机械精浆处理对漂白前后纸浆的纤维形态、湿部化学特性、白度及所抄纸张机械强度的影响。结果表明，机械精浆处理促进了后续纸浆漂白，改善了所抄纸张的强度性能，与磨后未漂浆相比，磨后漂白浆的纤维长度、滤水速度和细小纤维留着率均更低，溶解电荷量和保水值均更高。当打浆度由15 °SR提高到50 °SR时，磨后未漂浆和磨后漂白浆的纤维质均长度分别下降了14.8%和11.4%，细小纤维含量分别由4.00%和4.10%提高到4.70%和5.30%，且磨后漂白浆所抄纸张的白度较磨前漂白浆提高了约6个百分点。当打浆度为50 °SR时，磨后漂白浆所抄纸张的抗张指数、耐破指数和初始湿抗张指数分别较磨后未漂浆所抄纸张增加了22.4%、36.8%和3.0%。 |
| Abstract:Using bamboo chemi-thermomechanical pulp (CTMP) as raw material, the pulp was subjected to mechanical refining using a PFI refiner followed by alkaline H2O2 bleaching. This study investigated the effects of mechanical refining on the fiber morphology, wet-end chemical properties, brightness, and papers’ mechanical strength of unbleached and bleached pulp. The results indicated that the mechanical refining promoted the subsequent pulp bleaching efficiency and improved the papers’ strength properties. Compared with refined-unbleached pulp, the fiber length, drainability, and fines retention of refined-bleached pulp were worse, but the amount of colloidal charge and water retention value were higher. When the beating degree of pulp was increased from 15 °SR to 50 °SR, the fiber weighted-length of refined-unbleached and refined-bleached pulp were decreased by 14.8% and 11.4%, the fines content were increased from 4.00% and 4.10% to 4.70% and 5.30%, respectively, and the papers’ brightness of refined-bleached pulp was increased by about 6 percentage points compared with unrefined-bleactied pulp. At the beating degree of 50 °SR, the tensile index, bursting index, and initial wet tensile index of paper made of refined-bleached pulp increased by 22.4%, 36.8%, and 3.0%, respectively, compared to that of paper made of refined-unbleached pulp. |
| 查看全文
HTML
查看/发表评论 下载PDF阅读器 |
|
|
|