Comparison of Soda, Kraft, and DES Pulp Properties of European Black Poplar

IF 0.7 4区农林科学 Q4 MATERIALS SCIENCE, PAPER & WOOD

Drvna Industrija Pub Date : 2022-05-31 DOI:10.5552/drvind.2022.2112

S. K. Gülsoy, Ülkü Burcu Gitti, A. Gençer

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引用次数: 1

Abstract

Kraft pulping as the dominant pulping method contributes to several environmental problems. To overcome these problems, environmentally friendly pulping methods have been investigated. In the last years, deep eutectic solvents (DESs) have been identified as up-and-coming reagents in the lignocellulosic material processing and they are characterized as environmentally friendly. This study investigated the use of DES in pulp production from European black poplar chips. The DES mixture was prepared from choline chloride (ChCl) and ethylene glycol (EG). In addition, traditional soda and kraft pulping methods were carried out with poplar chips for comparison with the DES pulps. It was found that pulp production from poplar chips using DES was comparable to the soda and kraft pulps in terms of pulp yield, pulp viscosity, and opacity. The DES pulps easily reached target pulp freeness levels. However, the strength properties and brightness of the DES pulps were lower than those of the soda and kraft pulps. The strength properties of DES pulps can be improved with paper strength enhancers such as starch and micro or nanofibrillated cellulose. Also, the utilization of DES in pulp production may have an important role in cleaner production and it represents a greener alternative to traditional pulp production methods.

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欧洲黑杨碱浆、硫酸盐浆和DES浆性能的比较

硫酸盐法制浆作为主要的制浆方法，导致了一些环境问题。为了克服这些问题，已经研究了环境友好的制浆方法。在过去的几年里，深度共晶溶剂（DESs）已被确定为木质纤维素材料加工中的新兴试剂，并且它们具有环境友好的特点。本研究调查了DES在欧洲黑杨切片纸浆生产中的应用。DES混合物由氯化胆碱（ChCl）和乙二醇（EG）制备。此外，用杨木碎进行了传统的苏打法和硫酸盐法制浆，并和DES浆进行了比较。研究发现，在纸浆产量、纸浆粘度和不透明度方面，使用DES从杨木切片生产纸浆与苏打和硫酸盐纸浆相当。DES纸浆很容易达到目标纸浆游离度水平。然而，DES浆的强度性能和白度低于苏打浆和硫酸盐浆。DES纸浆的强度性能可以通过纸张强度增强剂如淀粉和微纤维或纳米纤维纤维素来改善。此外，DES在纸浆生产中的使用可能在清洁生产中发挥重要作用，它代表了传统纸浆生产方法的更环保的替代方案。

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

Drvna Industrija MATERIALS SCIENCE, PAPER & WOOD-

CiteScore

1.80

自引率

9.10%

发文量

审稿时长

>12 weeks

期刊介绍： "Drvna industrija" ("Wood Industry") journal publishes original scientific and review papers, short notes, professional papers, conference papers, reports, professional information, bibliographical and survey articles and general notes relating to the forestry exploitation, biology, chemistry, physics and technology of wood, pulp and paper and wood components, including production, management and marketing aspects in the woodworking industry.