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通过基于生物聚合物的涂层提高纸张的机械强度和抗菌性能

Neha Sawant¹, Sara T Caceres¹, Carin L Garcia¹

¹Department of Chemical and Paper Engineering, Western Michigan University, Kalamazoo, Michigan 49008, United States.

Industrial & engineering chemistry research

|June 26, 2025

概括

这项研究开发了一种可持续的生物聚合物涂层,由酸改性大豆面粉和碳甲基纤维素制成,以增强纸张的性能.

科学领域:

材料科学材料科学材料科学
生物技术是生物技术.
食品科学食品科学食品科学

背景情况:

纸制品需要增强的机械和抗菌性能,以适用于各种应用.
可持续和可生物降解的材料越来越多地被寻求用于纸张涂层.
豆粉和碳甲基纤维素具有作为生物基涂层组件的潜力.

研究的目的:

开发和优化使用酸改性大豆粉 (SBFC) 和甲基纤维素 (CMC) 的新型生物聚合物涂层.
评估SBFC/CMC涂层对纸张机械性能的影响.
评估涂层对抗阴性细菌的抗菌功效.

主要方法:

用酸改性大豆面粉 (SBFC) 通过热交联与Na2HPO4催化剂进行合成.
福利埃变换红外光谱 (FTIR) 用于确认键形成.
SBFC和CMC混合在不同的比例,以50:50的配方优化.
在涂层纸上进行拉伸强度测试和抗菌检测 (CFU计数).

主要成果:

优化的50:50 SBFC/CMC涂层显著提高了61.8%的纸张抗拉强度.
该涂层表现出明显的抗菌活性对大肠杆菌,实现了84-89%的可活殖民地减少 (log10减少1.2-1.7).
该配方显示出良好的分散稳定性和涂层性能.

结论:

用酸改性大豆面粉和CMC形成了纸张有前途的可持续生物聚合物涂层.
这种涂层有效地提高了纸质基板的机械强度和抗菌性能.
这种方法提供了一种多功能解决方案,用于改善纸张卫生,特别是用于包装应用.

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