基于 AlCl3/ZnCl2 水体系溶解交联纤维素制备高湿稳定性膜的研究

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作者简介：吴彬，博士；研究方向：纸和纸板的制备与检测。

关键词：纤维素膜；溶解交联；湿稳定性；食品保鲜 中图分类号：TS76；TQ352.7 文献标识码：A DOI：10.11980/j.issn.0254-508X.2025.10.007

Construction of Cellulose Films with High Wet-stability Based on Dissolving-co-crosslinking Cellulose in AlCl3/ZnCl2 Aqueous System

WU Bin 1，2 LI Bin1LIANG Tingting1LI Xianchun²LI Xin² WANG Zhiguo²2* （1.Huai'an Product Quality Supervision and Inspection Center，Huai'an，Jiangsu Province，223001; 2.Colege ofLight IndustryandFoodTechnology，NanjingForestryUniversity，Nanjing，Jiangsu Province，210037） （*E-mail：wzg@njfu.edu.cn）

Abstract：In this study，AlCl/ZnC2/HO was used as solvent， 1，4 -butanediol diglycidyl ether（BDDE） was introduced as crosslinking agent， andbleacheducalyptusasthecelloeamaterial.Celloseasdissoledandcolinkedatoomtemperaturetoprepare tecelulose film.When the amount of cellulose and BDDE are 1. 5% and 1，0% ，respectively，the filmhad the advantages of high strength，high wet stability，high transparency，and biodegradability. Its light transmitance could reach 90% . The stress-strain energies of the obtained cellulose films reached 141.0 MPa and 19.7% ，respectively. Even after soakingin water for 24h ，the wet stress and strain could reach 34.7 MPa and 67.3% .After being soaked in water for7days，itcould still maintain astable shape，and the swellingrate was only 94 % ， showing excellent water resistance and being able to hold liquids such as water，milk and soy sauce for 24h . It also showed lower water vapor permeability （615. 0 g/（m2⋅d） ）and oxygen permeability （4.15×10-3cm3/（m2⋅d⋅Pa）） .This transparent film featured high moisture stability and excellent wet strength，and had good application effect inthe fields of packaging and food preservation.

Key words：cellulose film；dissolving-co-crosslinking；wet stability；food preservation

目前，大多数生产薄膜的原料均来自石油基聚合物，如聚乙烯（PE）、聚丙烯（PP）和聚氯乙烯（PVC）等，因其具有质量轻、强度好、透明度高等优势在人类日常生活中发挥着重要作用。（剩余18540字）