Synthesis of Cationic Xylan Derivatives and Application as Strengthening Agents in Papermaking
Synthesis of Cationic Xylan Derivatives and Application as Strengthening Agents in Papermaking
复制标题
阳离子木聚糖衍生物的合成及其作为造纸增强剂的应用
DOI：
10.15376/biores.13.2.2960-2976
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发表时间：
2018-03
期刊：
影响因子：
1.5
通讯作者：
Lucia Lucian A.
中科院分区：
文献类型：
--
作者：
Kong Fangong;Guo Yanquan;Liu Zhongming;Wang Shoujuan;Lucia Lucian A.
以3-氯-2-羟丙基三甲基氯化铵为阳离子试剂，在碱性条件下通过醚化法制备了阳离子木聚糖衍生物。这些衍生物被用作增强剂来提高纸张的机械强度。成功合成了不同取代度（DS）值（0.11 ~ 0.35）对应不同阳离子电荷密度（0.51 ~ 0.85 mmol/g）的木聚糖阳离子衍生物，并根据DS和电荷密度对反应参数进行了优化。采用元素分析、傅里叶变换红外光谱和核磁共振光谱对阳离子木聚糖衍生物进行了表征。木聚糖衍生物对纸张的拉伸、撕裂和破裂等物理性能有较好的增强作用。阳离子木聚糖衍生物的DS越高，强化效果越好。体重2.4磅。添加DS为0.32的木聚糖衍生物后，纸浆的拉伸、撕裂和破裂指数分别提高了63%、58%和42%。对于不同打浆程度的纸浆，阳离子木聚糖衍生物对打浆程度较低的纸浆更有利。
Cationic xylan derivatives were prepared by etherification using 3-chloro-2-hydroxypropyltrimethylammonium chloride as the cationic reagent under an alkaline condition. These derivatives were utilized as strengthening agents to enhance the mechanical strength properties of paper. Cationic xylan derivatives with different degree of substitution (DS) values (0.11 to 0.35) that corresponded to different cationic charge densities (0.51 mmol/g to 0.85 mmol/g) were successfully synthesized, and the reaction parameters were optimized based on the DS and charge density. The cationic xylan derivatives were characterized by means of elemental analysis, Fourier transform infrared spectroscopy, and nuclear magnetic resonance spectrometry. The xylan derivatives had a good performance in strengthening the physical properties of the paper, such as the tensile, tear, and burst strengths. When the DS of the cationic xylan derivative was higher, the strengthening effectiveness was better. At a 2.4-wt.% (based on dried pulp) dosage with the xylan derivative that had a DS of 0.32, the tensile, tear, and burst indices of the pulp increased by 63%, 58%, and 42%, respectively. For the pulps with different beating degrees, the cationic xylan derivative was more beneficial to the pulps with a lower beating degree.
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DOI：
10.1080/09205063.2016.1264060
发表时间：
2017-01-01
影响因子：
3.6
作者：
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影响因子：
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