| 吴彬,李彬,梁婷婷,李贤春,李鑫,王志国.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[J].中国造纸,2025,44(10):57-66 |
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| 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 |
| Construction of Cellulose Films with High Wet-stability Based on Dissolving-co-crosslinking Cellulose in AlCl3/ZnCl2 Aqueous System |
| 收稿日期：2025-03-06 修订日期：2025-04-28 |
| DOI：10.11980/j.issn.0254-508X.2025.10.007 |
| 关键词: 纤维素膜 溶解交联 湿稳定性 食品保鲜 |
| Key Words:cellulose film dissolving-co-crosslinking wet stability food preservation |
| 基金项目:江苏省市场监管局科技计划项目（KJ2026097）。 |
| 作者 | 单位 | 邮编 | | 吴彬* | 淮安市产品质量监督综合检验中心,江苏淮安,223001
南京林业大学轻工与食品学院,江苏南京,210037 | 210037 | | 李彬 | 淮安市产品质量监督综合检验中心,江苏淮安,223001 | 223001 | | 梁婷婷 | 淮安市产品质量监督综合检验中心,江苏淮安,223001 | 223001 | | 李贤春 | 南京林业大学轻工与食品学院,江苏南京,210037 | 210037 | | 李鑫 | 南京林业大学轻工与食品学院,江苏南京,210037 | 210037 | | 王志国* | 南京林业大学轻工与食品学院,江苏南京,210037 | 210037 |
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| 摘要:本研究以AlCl3/ZnCl2/H2O为溶剂，1,4-丁二醇二缩水甘油醚（BDDE）为交联剂，漂白桉木溶解浆为纤维素原料，室温下溶解交联制备了纤维素膜。当纤维素含量为1.5%，BDDE添加量为1.0%时，制备得到透明的纤维素膜（在可见光波范围，透光率可达90%），其应力应变分别能达到141.0 MPa和19.7%。即使在水中浸泡24 h后，其湿应力应变也能达到34.7 MPa和67.3%；在水中浸泡7天后仍能保持形状稳定，且润胀率仅为94%，并且该薄膜制成的简易容器能盛装水、牛奶和酱油等液体并保持24 h；同时其还表现出较低的水蒸气透过率（615.0 g/(m2·d)）和氧气透过滤率（4.15×10-3 cm3/(m2·d·Pa)）。该透明膜具有高湿稳定性且湿强度优异，且在包装与食品保鲜领域有较好的应用效果。 |
| Abstract:In this study， AlCl3/ZnC2/H2O was used as solvent， 1，4-butanediol diglycidyl ether (BDDE) was introduced as crosslinking agent， and bleached eucalyptus as the cellulose raw material. Cellulose was dissolved and crosslinked at room temperature to prepare the cellulose film. When the amount of cellulose and BDDE are 1.5% and 1.0%， respectively， the film had the advantages of high strength， high wet stability， high transparency， and biodegradability. Its light transmittance could reach 90%. The stress-strain energies of the obtained cellulose films reached 141.0 MPa and 19.7%， respectively. Even after soaking in water for 24 h， the wet stress and strain could reach 34.7 MPa and 67.3%. After being soaked in water for 7 days， it could still maintain a stable shape， and the swelling rate was only 94%， showing excellent water resistance and being able to hold liquids such as water， milk and soy sauce for 24 h. It also showed lower water vapor permeability (615.0 g/（m2·d）) and oxygen permeability (4.15×10-3 cm3/（m2·d·Pa）). This transparent film featured high moisture stability and excellent wet strength， and had good application effect in the fields of packaging and food preservation. |
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