岩藻多糖-壳聚糖复合膜的制备及表征

于婧涵; 肖应芹; 盆媛媛; 毕秀芳; 刘媛媛

doi:10.19554/j.cnki.1001-3563.2026.17.012

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包装工程（技术栏目） ›› 2026, Vol. 47 ›› Issue (17) : 111-119. DOI: 10.19554/j.cnki.1001-3563.2026.17.012

先进材料

岩藻多糖-壳聚糖复合膜的制备及表征

于婧涵, 肖应芹, 盆媛媛, 毕秀芳^*, 刘媛媛

作者信息 +

Preparation and Characterization of Fucoidan-Chitosan Composite Films

YU Jinghan, XIAO Yingqin, PEN Yuanyuan, BI Xiufang^*, LIU Yuanyuan

Author information +

文章历史 +

摘要

目的为明确岩藻多糖（Fucoidan,FUC）对壳聚糖（Chitosan,CS）膜结构及性能的影响,以CS为基材,引入不同质量分数的FUC制备复合膜,研究FUC添加量对复合膜水分相关特性、机械性能、分子结构及热行为的影响。方法设置25%、50%、75%共3个FUC质量分数梯度制备CS复合膜,测定水分含量、溶解度、溶胀率、机械性能等理化指标,结合傅里叶变换红外光谱（FTIR）、差示扫描量热法（DSC）表征膜结构与热稳定性并进行指标间相关性分析。结果适量添加FUC可显著优化复合膜综合性能;当添加量为75%时,复合膜机械性能最优,柔韧性显著提升;DSC结果显示复合膜热稳定性优于纯FUC膜与纯CS膜;相关性分析表明,复合膜拉伸强度与断裂伸长率呈显著正相关,溶胀率与溶解度呈中等正相关,二者分别与拉伸强度、断裂伸长率呈显著负相关（P < 0.05）。结论 FUC通过氢键和静电作用调控CS复合膜网络,增强水分响应与溶胀能力,但降低拉伸强度,为其配方优化和应用定位提供理论依据。

Abstract

To elucidate the effects of fucoidan (FUC) on the structure and properties of chitosan (CS) films, the work aims to prepare composite films by using CS as the film-forming matrix and incorporating different mass fractions of FUC and study the effects of FUC content on the moisture-related properties, mechanical properties, molecular structure, and thermal behavior of the composite films. CS-based composite films incorporated with FUC at three mass fraction levels (25%, 50%, 75%) were fabricated. A series of physical and chemical indicators, including moisture content, solubility, swelling degree and mechanical performance, were systematically measured. Fourier transform infrared spectroscopy (FTIR) and differential scanning calorimetry (DSC) were employed to characterize the microstructural features and thermal stability of the films, followed by a correlation analysis among all the tested performance indicators. Appropriate addition of FUC could significantly optimize the comprehensive properties of the composite films. When the FUC content was 75%, the composite film achieved the optimal mechanical properties with significantly improved flexibility. DSC results showed that the thermal stability of the composite film was superior to that of pure FUC film and pure CS film. Correlation analysis indicated that the tensile strength of the composite film was significantly positively correlated with the elongation at break, the swelling rate was moderately positively correlated with the solubility, and both were significantly negatively correlated with the tensile strength and elongation at break, respectively (P < 0.05). FUC modulated the network structure of CS composite films through hydrogen bonding and electrostatic interactions, enhancing their water responsiveness and swelling capacity while reducing tensile strength. These findings provide a theoretical basis for formulation optimization and application-oriented design of CS-FUC composite films.

导出引用

于婧涵, 肖应芹, 盆媛媛, 毕秀芳, 刘媛媛. 岩藻多糖-壳聚糖复合膜的制备及表征[J]. 包装工程. 2026, 47(17): 111-119 https://doi.org/10.19554/j.cnki.1001-3563.2026.17.012

YU Jinghan, XIAO Yingqin, PEN Yuanyuan, BI Xiufang, LIU Yuanyuan. Preparation and Characterization of Fucoidan-Chitosan Composite Films[J]. Packaging Engineering. 2026, 47(17): 111-119 https://doi.org/10.19554/j.cnki.1001-3563.2026.17.012

中图分类号： TB383.2

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