The preparation of carboxymethyl cellulose from corncob residue and its effects on paper properties

IF 1.7 4区农林科学 Q2 MATERIALS SCIENCE, PAPER & WOOD

Journal of Wood Chemistry and Technology Pub Date : 2022-03-15 DOI:10.1080/02773813.2022.2050759

Zhang Tao, Shuai Wang, Liping Zhang, Liujun Liu, Xian-liang Song

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引用次数: 1

Abstract

Abstract In this study, corncob residue was treated in advance with different three methods in order to remove lignin. The treated fibers were characterized using Zeta potential, WRV, and FAS-VII fiber analysis methods. The lignin removal rates of the corncob residue treated with sodium hypochlorite were determined to reach up to 92.81%. The average fiber length was 0.65 mm, and the average width was 34.11 µm. In addition, the obtained cellulose was modified by carboxymethylation to prepare carboxymethyl cellulose. The results indicated that the carboxymethyl cellulose obtained from the corncob residue could significantly improve the properties of paper. For example, when 1% carboxymethyl cellulose was added, the burst index, tensile index, folding endurance, and tear index of the experimental paper were improved by 16.7%, 27.65%, 57.3%, and 18.2%, respectively, compared with the control. The results of this study’s SEM analysis showed that the addition of carboxymethyl cellulose from corncob residue resulted in the fibers becoming more tightly combined, which in turn led to the improvement of paper strength properties.

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玉米芯渣制备羧甲基纤维素及其对纸张性能的影响

摘要本研究采用三种不同的方法对玉米芯残渣进行预处理，以去除木质素。使用Zeta电位、WRV和FAS-VII纤维分析方法对处理后的纤维进行了表征。用次氯酸钠处理玉米芯残渣，其木质素去除率高达92.81%，平均纤维长度为0.65 mm，平均宽度为34.11 µm。此外，对所得纤维素进行羧甲基化改性，制备羧甲基纤维素。结果表明，从玉米芯渣中提取的羧甲基纤维素能显著改善纸张的性能。例如，当添加1%羧甲基纤维素时，与对照相比，实验纸的爆裂指数、拉伸指数、耐折叠性和撕裂指数分别提高了16.7%、27.65%、57.3%和18.2%。本研究的SEM分析结果表明，从玉米芯残渣中加入羧甲基纤维素，使纤维结合更加紧密，进而提高了纸的强度性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Wood Chemistry and Technology 工程技术-材料科学：纸与木材

CiteScore

3.70

自引率

20.00%

发文量

审稿时长

3 months

期刊介绍： The Journal of Wood Chemistry and Technology (JWCT) is focused on the rapid publication of research advances in the chemistry of bio-based materials and products, including all aspects of wood-based polymers, chemicals, materials, and technology. JWCT provides an international forum for researchers and manufacturers working in wood-based biopolymers and chemicals, synthesis and characterization, as well as the chemistry of biomass conversion and utilization. JWCT primarily publishes original research papers and communications, and occasionally invited review articles and special issues. Special issues must summarize and analyze state-of-the-art developments within the field of biomass chemistry, or be in tribute to the career of a distinguished researcher. If you wish to suggest a special issue for the Journal, please email the Editor-in-Chief a detailed proposal that includes the topic, a list of potential contributors, and a time-line.