稻草氧碱浆打浆特性的研究

doi:10.3969/j.issn.0253-2417.2017.02.020

林产化学与工业 ›› 2017, Vol. 37 ›› Issue (2): 148-154.doi: 10.3969/j.issn.0253-2417.2017.02.020

• 研究报告 • 上一篇

稻草氧碱浆打浆特性的研究

邵思成, 吴初柱, 陈克利

昆明理工大学化学工程学院, 云南昆明 650500

收稿日期:2016-06-20 出版日期:2017-04-25 发布日期:2017-05-04
通讯作者: 陈克利,教授,博士生导师,主要从事清洁制浆技术、生物质转化与利用;E-mail:chenkelikami@163.com。 E-mail:chenkelikami@163.com
作者简介:邵思成(1990-),男,安徽亳州人,硕士生,主要从事制浆新技术与过程产物利用研究
基金资助:
国家自然科学基金资助项目（51363013）

Beating Characteristics of Rice Straw Alkali-oxygen Pulp

SHAO Sicheng, WU Chuzhu, CHEN Keli

Chemical Engineering College, Kunming University of Science and Technology, Kunming 650500, China

Received:2016-06-20 Online:2017-04-25 Published:2017-05-04

摘要/Abstract

摘要： 为研究稻草氧碱浆的打浆特性，采用PFI磨考察了不同打浆度对稻草氧碱浆滤水性能、纤维形态的影响，并分析其纸张强度性能的变化。结果表明：纸浆打浆度与保水值在打浆初期快速上升，在打浆后期上升趋缓，但是打浆度在打浆初期能快速上升至55～60°SR，而保水值快速上升阶段仅到45°SR左右；同时杂细胞的存在对滤水性能不利。打浆度35~75°SR过程中，纤维长度的变化不大，未除杂浆纤维长度下降最多约为7.3%，除杂浆纤维长度下降最多约为4.0%，而打浆对纤维表面的细纤维化作用明显。未除杂浆纸张耐破指数和抗张指数在打浆度65°SR时达到最佳，杂细胞的存在会对纸张的抗张强度提高形成一定的阻碍，除杂浆纸张耐破指数和抗张指数在65°SR以上的高打浆度下仍然保持上升的趋势，因而更倾向于在高打浆度、高结合强度要求的纸种当中获得应用。

关键词: 稻草氧碱浆, 杂细胞, 打浆, 机械性能, 滤水性能

Abstract: The effects of different beating levels on drainability and fiber morphologies of rice straw alkali-oxygen pulps were investigated by PFI mill, and the strength performances of hand-sheets prepared by this pulp were also analyzed. The results showed that the changes of the beating degree and water-retention value were similar in the initial stage and later stage of beating. In the initial stage, the beating degree was rapidly increased to 55-60°SR. Meanwhile, the water-retention value was increased to about 45°SR. When the beating degree was increased to 75°SR from 35°SR, the fiber length changed little with the maximum decrease rate of the pulp without non-fibrous cells (P_nof) of 7.3% and that of the pulp with non-fibrous cells (P_f) of 4%, and more fibrillated fibers were observed during the beating process. The non-fibrous cells played negative roles on both the improvement of pulp drainabilityand the strength properties. The best burst index and tensile index were obtained as the beating degree was 65°SR. In addition, an ever-increasing tendency was found in terms of burst index and tensile index of paper sheets of P_nof with higher beating degree(above 65°SR).

Key words: rice straw alkali-oxygen pulp, non-fibrous cells, beating, strength properties, drainability

中图分类号:

TQ35

邵思成, 吴初柱, 陈克利. 稻草氧碱浆打浆特性的研究[J]. 林产化学与工业, 2017, 37(2): 148-154.

SHAO Sicheng, WU Chuzhu, CHEN Keli. Beating Characteristics of Rice Straw Alkali-oxygen Pulp[J]. Chemistry and Industry of Forest Products, 2017, 37(2): 148-154.

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稻草氧碱浆打浆特性的研究

Beating Characteristics of Rice Straw Alkali-oxygen Pulp

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