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聚乙醇/有机蒙莫里隆石复合涂层应用于基于纸质的屏障包装材料
Zheng Cheng1,2,3,4,5, Mei Ning1,3,4,5, Xinmei Nong1,3,4,5
1College of Light Industry and Food Technology, Zhongkai University of Agriculture and Engineering Guangzhou CN 510225 China chengzheng@zhku.edu.cn wanghonglei@zhku.edu.cn.
RSC advances
|November 12, 2025
概括
这项研究使用有机蒙莫里隆石 (OMMT) 和聚乙醇 (PVA) 开发了环保的 Kraft 纸涂层. 由此产生的PVA/OMMT复合涂层显著提高了屏障性能,为塑料包装提供了一个可持续的替代品.
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
- 环境科学 环境科学
背景情况:
- 全球日益增长的环境意识需要解决塑料包装的白色污染问题.
- 可持续包装材料是包装行业的一个关键趋势.
研究的目的:
- 开发高屏障,环保涂层用于 Kraft 纸.
- 为了研究聚乙醇 (PVA) /有机蒙莫里隆石 (OMMT) 复合涂料的特性.
主要方法:
- 蒙特莫里隆石 (MMT) 的修改为有机蒙特莫里隆石 (OMMT).
- 用甘油,酸和四酸盐制备PVA/OMMT复合涂层.
- 用自动工艺将复合材料涂在 Kraft 纸上.
主要成果:
- PVA/OMMT复合涂料显著改善了强力纸的屏障性能.
- 氧气的透性降低到14.92 cm3 m-2·24 h Pa.
- 水蒸气传递率降低到2.68 × 10−12 g cm−2 s−1 Pa. 这样,水蒸气的传递率可以减少到2.68 × 10−12 g cm−2 s−1 Pa.
- 由于由四酸盐和PVA形成的酸乙键,增强了耐水性.
- 复合涂料表现出耐油性,进一步改善了屏障效应.
结论:
- 涂有PVA/OMMT涂层的 Kraft 纸既能保护环境,也具有高屏障性能.
- 这种创新方法为传统塑料包装提供了一个可持续的替代方案.
- 促进在基于纸的包装材料中应用先进的屏障涂层.
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