Page 38 - 《精细化工》2022年第5期

第 39 卷第 5 期 精 细 化 工 Vol.39, No.5
2022 年 5 月 FINE CHEMICALS May 2022

功能材料
再生纤维素/壳聚糖/银纳米线抗菌

复合膜的制备及性能

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张群利 1,3 ，崔琳琳 ，高 雪
（1. 东北林业大学 工程技术学院，黑龙江 哈尔滨 150040；2. 哈尔滨商业大学 药学院，黑龙江 哈尔
滨 150076；3. 森林持续经营与环境微生物工程黑龙江省重点实验室，黑龙江 哈尔滨 150040）

摘要：以 1-丁基-3-甲基咪唑氯盐（[Bmim]Cl）为溶剂，通过微晶纤维素（MCC）溶解再生制备了再生纤维素（RGC）
湿膜，再用壳聚糖（CS）、银纳米线（AgNW）共混液包覆湿膜制备了 RGC/CS/AgNW 抗菌复合膜。通过 FTIR、
XRD、SEM 和 TG 对 RGC/CS/AgNW 抗菌复合膜的结构、形貌和热稳定性进行了表征，并对其力学、光学、阻
隔、抑菌性能进行了测试。结果表明，壳聚糖和银纳米线成功复合于再生纤维素膜上；与 RGC 基膜相比，当
AgNW 添加量为 0.5%（以 CS 质量计，下同）时，RGC/CS/AgNW 抗菌复合膜的拉伸强度提升了 12.2%，透光
率保持在 89.82%，氧气透过率下降了 86.7%，且对大肠杆菌具有良好的抑制作用。
关键词：纤维素；壳聚糖；银纳米线；力学性能；光学性能；阻隔性能；抑菌性能；功能材料
中图分类号：TS71+1；TB332 文献标识码：A 文章编号：1003-5214 (2022) 05-0892-06

Preparation and properties of regenerated cellulose/chitosan/silver
nanowire antibacterial composite film

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ZHANG Qunli , CUI Linlin , GAO Xue
（1. College of Engineering and Technology, Northeast Forestry University, Harbin 150040, Heilongjiang, China; 2. School of
Pharmacy, Harbin University of Commerce, Harbin 150076, Heilongjiang, China; 3. Key Laboratory of Sustainable Forest
Management & Environmental Microbiology in Heilongjiang Province, Harbin 150040, Heilongjiang, China）

Abstract: Regenerated cellulose (RGC) base film was first prepared by dissolution and regeneration of
microcrystalline cellulose (MCC) with 1-butyl-3-methylimidazole chloride ([Bmim]Cl) as solvent. Then,
RGC/CS/AgNW composite film was fabricated by coating chitosan (CS) and silver nanowire (AgNW)
mixing solution on the RGC base film. The structure, morphology and thermal stability of RGC/CS/AgNW
composite film were characterized by FTIR, XRD, SEM and TG. Furthermore, the mechanical, optical, gas
proof and antibacterial properties were investigated. The characterization results showed that chitosan and
silver nanowires were successfully coated on the base film. When the amount (based on the mass of CS, the
same below) of AgNW added was 0.5%, the tensile strength of the prepared RGC/CS/AgNW antibacterial
composite film increased by 12.2%, the light transmittance remained at 89.82%, oxygen transmittance
decreased by 86.7% in comparison to those of the RGC base film. Moreover, the antibacterial tests
demonstrated that the composite film had a good inhibitory effect on E. coli.
Key words: cellulose; chitosan; silver nanowires; mechanical properties; optical properties; barrier
properties; bacteriostatic properties; functional materials

近年来，抗菌材料的研究受到人们的广泛重视 [1-6] 。 能赋予包装材料持久、长效的抗菌、杀菌性能，作
利用分子组装、纳米、复合等新型技术，将抗菌材 为一种符合现代科学技术发展的新型功能材料，市
料（成分）通过特殊工艺均匀添加到包装材料中， 场前景可观。

收稿日期：2021-12-02; 定用日期：2022-02-23; DOI: 10.13550/j.jxhg.20211235
基金项目：中央高校基本科研业务费专项资金资助（2572019BL01）
作者简介：张群利（1978—），男，博士，副教授，E-mail：zhangqunli@nefu.edu.cn。