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聚乙烯酸) 基纳米复合物的合成通过现场聚合,具有增强的抗菌性能,用于食品包装应用

Johan Stanley¹, Eleftheria Xanthopoulou¹, Matjaž Finšgar²

¹Laboratory of Chemistry and Technology of Polymers and Colors, Department of Chemistry, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece.

|January 17, 2024

概括

用于食品包装的聚乙烯2,5-基碳酸盐 (PEF) 纳米复合材料与Ce-生物玻璃,ZnO和ZrO2纳米颗粒被开发出来. 这些材料表现出增强的抗微生物特性和提高的机械强度,使它们成为积极包装应用的前景.

科学领域:

材料科学材料科学材料科学
聚合物化学聚合物化学
纳米技术纳米技术

背景情况:

聚乙烯2,5-基碳酸盐 (PEF) 是一个有前途的生物基聚合物用于包装.
提高PEF特性,如抗菌活性和机械强度,对于先进的食品包装应用至关重要.
纳米粒子提供了一条通往功能化聚合物矩阵的途径,以提高性能.

研究的目的:

合成和描述基于PEF的纳米复合材料,其中包括Ce-bioglass,ZnO和ZrO2纳米粒子.
评估开发的纳米复合材料的结构,热,机械和抗菌性质.
评估这些纳米复合材料对于食品包装应用的适用性.

主要方法:

在PEF与Ce-bioglass,ZnO和ZrO2纳米颗粒的现场聚合.
使用ATR-FTIR,内在粘度,ToF-SIMS,色度测量,DSC,TGA,SEM,接触角度测量和纳米缩影进行表征.
抗微生物活性测试针对格拉姆阳性和格拉姆阴性细菌菌株.

主要成果:

纳米粒子在PEF矩阵中成功分散.
PEF纳米复合材料对已测试的细菌菌株表现出增强的抗菌活性.
与整洁的PEF相比,基于ZnO的纳米复合材料表现出更好的硬度和弹性模量.
接触角测量表明,由于纳米粒子的加入,表面的湿透性增加.

结论:

基于PEF的纳米复合材料与Ce-bioglass,ZnO和ZrO2纳米颗粒显示出积极食品包装的巨大潜力.
增强的抗微生物特性和改进的机械特性使这些材料适合延长食品的保质期.
进一步的研究可以优化纳米粒子度,并探索商业应用的长期稳定性.

关键词:

它具有抗微生物特性.生物基聚合物生物基聚合物纳米复合材料的使用方法纳米颗粒是一种纳米粒子.聚乙烯酸) 是一种聚乙烯酸.

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