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食品包装的可持续纸质涂层:经过改性,具有增强的防水屏障和耐用性

Jingjing Chai¹, Shujie Fan¹, Hongjie Zhang²

¹Tianjin Key Laboratory of Pulp & Paper, China Light Industry Key Laboratory of Papermaking and Biorefinery, State Key Laboratory of Bio-based Fiber Materials, School of light industry science and engineering, Tianjin University of Science & Technology, Tianjin, 300457, China.

International journal of biological macromolecules

|January 10, 2026

概括

这项研究提高了食品包装的纸张的耐水和耐油性,使用与乳酸交联的藻酸盐 (SA) 和基二聚合物 (AKD) 涂层. 改进的涂层为可持续的食品包装应用提供了卓越的屏障性能和耐用性.

科学领域:

材料科学材料科学材料科学
可持续的包装包装是可持续的
食品科学食品科学食品科学

背景情况:

基于石油的塑料在食品包装中带来了环境挑战.
纸张提供了一个可持续的替代品,但缺乏足够的防水和防油性能.
以前的SA/AKD涂层在防水性和结构完整性方面表现出局限性.

研究的目的:

为了提高SA/AKD涂层纸的防水和防油性能.
为了提高涂层的稳定性和耐用性,用于食品包装应用.
开发一种食品级,可持续的纸质屏障材料.

主要方法:

开发了一种基于纸张的屏障涂层,使用基酸盐 (SA) 和基二聚合物 (AKD).
引入乳酸溶液作为交叉连接剂,以稳定SA/AKD涂层.
评估了涂层的水蒸气传递速率 (WVTR),水蒸气透率 (WVP) 和Cobb30值.
通过折叠,摩擦和手指触摸测试来评估涂层的耐用性.

主要成果:

乳酸交叉连接显著提高了耐水性,降低了WVTR和WVP,以及Cobb30值.
涂层保持了出色的耐油性,符合一般食品包装标准.
交联涂层呈现出密集的3D网络结构,提高了稳定性和耐用性.
经过严格的物理测试后,修改后的纸张保留了屏障特性.

结论:

乳酸有效地稳定了纸上SA/AKD涂层,显著提高了耐水性.
开发的纸质涂层为环保食品包装提供了可持续,耐用和食品级的解决方案.
这种方法促进了生物基纸包装作为石油基塑料的替代品的商业化.

关键词:

屏障屏障是一种障碍.离子是一种离子.食品包装食品的包装纸张涂层是一种纸张涂层.甲基酸盐的使用方法

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