贝涂层纸的结构性质关系:涂层参数对高屏障生物基包装应用的影响
Deepak Poddar1, Rajiv K Srivastava2, Sudip Kumar Pattanayek1
1Department of Chemical Engineering, Indian Institute of Technology Delhi, India.
International journal of biological macromolecules
|April 18, 2025
概括
贝涂层显著改善了纸张的质量.
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:
- 基于塑料的食品包装带来了环境问题.
- 生物基涂料提供可持续的替代品.
- 提高涂层纸的水分和油阻隔对于更广泛的应用至关重要.
研究的目的:
- 为了研究贝度和涂层层对纸张屏障性能的影响.
- 了解贝涂层形态和屏障性能之间的关系.
- 评估贝作为一种可行的生物基涂层,用于高屏障食品包装.
主要方法:
- 涂层纸含有不同度的贝在丁醇中.
- 应用多个涂层层.
- 描述涂层纸的表面,物理化学和热性能.
- 测量水蒸气传导率 (WVTR),水屏障 (COBB 180) 和油屏障 (KIT).
主要成果:
- 增加的糖度和涂层层提高了表面性能,减少了孔隙性和粗性.
- 一个15% (重量/重量) 贝溶液与四个涂层实现了WVTR的56gm−2天−1,COBB180的1gm−2,和KIT的12.
- 即使是7.5% (w/w) 贝度也显示了涂层纸重量 (GSM) 的显著改善.
结论:
- 贝涂层有效地增强纸张的防潮和防油性能.
- 优化的贝涂层满足了对高屏障食品包装应用的严格要求.
- 贝为食品包装中塑料提供了一个有希望的,可持续的替代品.
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