Page 205 - 《精细化工》2022年第11期

第 39 卷第 11 期 精 细 化 工 Vol.39, No.11
2022 年 11 月 FINE CHEMICALS Nov. 2022

造纸化学品
壳聚糖季铵盐交联酰胺共聚物的制备及应用

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张 琦 ，景 宜 1,2* ，包 康 ，王雯璐
（1. 南京林业大学 轻工与食品学院，江苏 南京 210037；2. 江苏省林业资源高效加工利用协同创新中
心，江苏 南京 210037）

摘要：以羟丙基三甲基氯化铵壳聚糖（CC）为阳离子单体，二乙烯三胺（DETA）和己二酸（AA）为原料，甲
基丙烯酸缩水甘油酯（GMA）为交联剂，通过水溶液共聚法制备了壳聚糖季铵盐交联酰胺共聚物（CC-GPPC）。
通过 FTIR、SEM、TG、GPC 对其结构与性能进行表征；探讨了 CC、GMA 及 DETA 用量对 CC-GPPC 性能及
其浆内添加后纸张物性的影响。结果表明，在 CC 添加量为 1.0 g、n(AA)∶n(DETA)∶n(GMA)=1∶1.1∶0.9，
AA 用量为 0.1 mol 时，可制得性能较为优越的 CC-GPPC，此时聚合物重均相对分子质量为 74520，平均粒径为
795 nm，分散指数为 0.581，常温（25 ℃）下可稳定贮存 56 d；当 CC-GPPC 的浆内添加量为绝干纤维质量的
0.6%时，纸张干抗张指数为 52.99 N·m/g，湿抗张指数为 16.82 N·m/g，与原纸相比，纸张干、湿抗张指数分别提
高了 29.75%、80.67%，纸张增湿强效果明显提高。与商用纸张增湿强剂聚酰胺多胺环氧氯丙烷（PAE）树脂相
比，CC-GPPC 达到了无氯且性能优越，纸张湿抗张指数提高了 10.58%，是一种绿色环保型纸张增湿强剂。
关键词：壳聚糖季铵盐；甲基丙烯酸缩水甘油酯；增湿强剂；环保；造纸化学品
中图分类号：TS727.2 文献标识码：A 文章编号：1003-5214 (2022) 11-2355-09

Synthesis and application of chitosan quaternary
ammonium salt crosslinked amide copolymer

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ZHANG Qi , JING Yi 1,2* , BAO Kang , WANG Wenlu
（1. Department of Light Industry and Food, Nanjing Forestry University, Nanjing 210037, Jiangsu, China; 2. Jiangsu
Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing
210037, Jiangsu, China）

Abstract: Chitosan quaternary ammonium salt crosslinked amide copolymer (CC-GPPC) was prepared by
aqueous copolymerization of adipic acid (AA), diethylenetriamine (DETA), crosslinking monomer glycidyl
methacrylate (GMA) and cationic monomer hydroxypropyl trimethylammonium chloride chitosan (CC).
The CC-GPPC were then characterized by FTIR, SEM, TG and GPC, followed by investigation on the
effects of dosages of CC and GMA and DETA on the CC-GPPC properties and the physical properties of
paper produced from pulp added with CC-GPPC. The results showed that the CC-GPPC, prepared at
conditions of CC 1.0 g,AA dosage 0.1 mol, and n(AA)∶n(DETA)∶n(GMA)=1∶1.1∶0.9, displayed
superior performance with a weight average relative molecular mass of 74520, average particle size of 795
nm, and the dispersion index of 0.581. Moreover, CC-GPPC synthesized at above conditions could be
stored stably for 56 d at normal temperature (25 ℃). When 0.6% (based on the total dry paper pulp )
CC-GPPC was added into the paper pulp, the dry and wet tensile indexes of paper generated were 52.99
N·m/g and 16.82 N·m/g, corresponding to an increase of 29.75% and 80.67% respectively in comparison to
those of paper obtained with no CC-GPPC addition, indicating significant improvement in paper wet-strength
performance. Compared with commercial polyamide polyamine epichlorohydrine (PAE), CC-GPPC,
chlorine-free and exhibited superior performance with paper wet tensile index increased by 10.58%, was a
green and environmental friendly paper humidifier.
Key words: chitosan quaternary ammonium salt; glycidyl methacrylate; wet-strength agent; environmental

收稿日期：2022-05-10; 定用日期：2022-06-27; DOI: 10.13550/j.jxhg.20220451
基金项目：国家自然科学基金项目（31370583）；江苏省研究生科研与实践创新计划项目（KYCX22_1072）
作者简介：张 琦（1997—），男，硕士生。联系人：景 宜（1966—），男，教授，博士生导师，E-mail：jingyi@njfu.com.cn。