用于锡板的多功能环氧基纳米复合材料涂层:以优越的机械,抗腐蚀和抗微生物性能增强食品包装
Joseph Raj Xavier1, S P Vinodhini1, A Priyadharshini1
1Department of Chemistry, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai 602 105, Tamil Nadu, India.
International journal of biological macromolecules
|April 2, 2025
概括
一种新的环氧纳米复合材料涂层,采用减少的氧化石墨烯,酸盐和锡酸盐,为食品包装提供卓越的机械强度和屏障性能. 这种先进的材料提供了增强的抗微生物和抗腐蚀保护,延长了产品的保质期.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物科学 聚合物科学
- 食品包装技术 食品包装技术
背景情况:
- 传统的食品包装材料往往缺乏足够的机械强度,屏障性能和抗菌保护.
- 提高锡板涂层对于改善食品保存和延长保质期至关重要.
- 开发具有综合性质的多功能涂层是包装科学研究的一个关键领域.
研究的目的:
- 开发和评估一种新的以环氧为基础的纳米复合材料涂层用于锡板食品包装.
- 调查减少的氧化石墨烯 (rGO),酸盐 (CS) 和锡酸盐 (SnTiO3) 对涂层性能的协同效应.
- 评估开发的纳米复合材料涂层的机械,屏障,抗微生物和抗腐蚀性能.
主要方法:
- 制造一种以环氧为基础的纳米复合材料 (EP/rGO/CS/TT),在rGO上结合功能化SnTiO3纳米粒子.
- 使用拉伸强度测试对机械性能进行评估.
- 评估气体和水分屏障特性.
- 抗微生物活性测试针对格拉姆阳性和格拉姆阴性细菌.
- 使用电化学阻抗光谱 (EIS) 分析耐腐蚀性.
主要成果:
- 这种EP/rGO/CS/TT纳米复合材料显著提高了拉伸强度和机械强度.
- 观察到异常的气体和水分屏障特性,提高了包装的完整性.
- 由于基托,涂层表现出强烈的抗菌活性,减少了微生物污染.
- 酸铁的结合提供了出色的光催化和防腐效应,被EIS证实具有高阻力值 (例如,Rct = 2.65 × 1013 Ω·cm2).
- 在机械,屏障和抗微生物测试中,纳米复合材料的性能优于纯环氧和单个组件.
结论:
- 开发的环氧纳米复合材料涂层为先进的食品包装提供了多功能解决方案.
- rGO,CS和SnTiO3的协同组合提供了增强的机械强度,屏障性能和抗微生物/抗腐蚀保护.
- 这种新型涂层代表了创造更安全,更耐用和更持久的食品包装材料的有希望的进步.
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