Page 212 - 《精细化工》2021年第4期

第 38 卷第 4 期 精 细 化 工 Vol.38, No.4
202 1 年 4 月 FINE CHEMICALS Apr. 2021

造纸化学品
没食子酸/乙二胺共沉积聚酯纤维的制备及其成纸性能

庄思杰 1,2 ，张静贤 1,2 ，龙 柱 1,2* ，张 丹 1,2 ，孙 昌 1,2

（1. 江南大学 生态纺织教育部重点实验室，江苏 无锡 214122；2. 江南大学 造纸实验室，江苏 无锡
214122）

摘要：在碱性三羟甲基氨基甲烷（Tris）缓冲液中，将没食子酸与乙二胺通过迈克尔加成和席夫碱反应共沉积在
聚酯短切纤维表面。测定了改性前后聚酯短切纤维的动态接触角，采用 SEM 观察了纤维的形貌，利用 FTIR 和
XPS 表征了纤维表面结构的变化，最后以改性前后聚酯短切纤维和阔叶木浆抄纸，测定了纸张的孔径分布变化
和透气性，并测试了纸张物理性能。结果表明，经共沉积改性后的聚酯短切纤维表面存在大量羟基，纤维表面
有氮元素生成，同时表面粗糙度提高，与未改性聚酯短切纤维相比，改性后聚酯短切纤维与去离子水的接触角
降低了 57.2°，显著改善了纤维的亲水性；与未改性纤维纸页相比，改性后纤维纸页抗张强度提高了 35.2%，耐破
指数提高了 13.1%，透气度提高了 11.1%，相同孔径范围内的孔径占比增加了 23%~29%，纤维分散性明显提高。
关键词：聚酯纤维；没食子酸；共沉积；亲水分散；纸张性能；造纸化学品
中图分类号：TS72 文献标识码：A 文章编号：1003-5214 (2021) 04-0846-07

Preparation of gallic acid/ethylenediamine co-deposited

polyester fiber and its paper-forming properties

1,2
1,2
1,2
1,2
ZHUANG Sijie , ZHANG Jingxian , LONG Zhu 1,2* , ZHANG Dan , SUN Chang
（1. Key Laboratory of Eco-textiles, Ministry of Education, Jiangnan University, Wuxi 214122, Jiangsu, China;
2. Papermaking Laboratory, Jiangnan University, Wuxi 214122, Jiangsu, China）
Abstract: Gallic acid and ethylenediamine were co-deposited on the surface of polyester chopped fibers by
Michael addition and Schiff base reaction in tris (hydroxymethyl) aminomethane (Tris) buffer. The dynamic
contact angles of polyester chopped fibers before and after modification were measured, and the
morphology was observed by SEM. Changes in the surface structure of the fibers were characterized FTIR
and XPS. Finally, the polyester chopped fibers before and after the modification and hardwood pulp were
used to make paper. The changes of pore size distribution, air permeability and physical properties of the
paper were tested. The results showed that there were a large number of hydroxyl groups on the surface of
the polyester chopped fiber after co-deposition modification, nitrogen formed on the surface of the fiber,
and the surface roughness of the fiber was improved. The water contact angle of the modified polyester was
57.2° lower than that of the unmodified polyester chopped fiber, which significantly improves the
hydrophilicity of the fiber. Compared with those of the unmodified fiber paper, the tensile strength, bursting
index and air permeability of the modified fiber paper were increased by 35.2%, 13.1% and 11.1%,
respectively. Additionally, the pore diameter of the modified fiber paper was increased by 23%~29% within
the same pore diameter range, and the fiber dispersion was significantly improved.
Key words: polyester fiber; gallic acid; co-deposition; hydrophilic dispersion; paper performance; papermaking
chemicals

聚对苯二甲酸乙二酯即聚酯（PET）纤维因化 被广泛应用在制浆造纸、纺织、食品包装、建筑等
学稳定性好、断裂强度高、刚性强、耐高温等优点， 领域 [1-3] 。当 PET 纤维与植物纤维混抄成纸时需要

收稿日期：2020-08-31; 定用日期：2020-10-10; DOI: 10.13550/j.jxhg.20200815
基金项目：国家自然科学基金资助项目（31600478）
作者简介：庄思杰（1995—），男，硕士生。联系人：龙 柱（1966—），男，教授，博士生导师，E-mail：longzhu@jiangnan.edu.cn。