作为包装和制药应用的替代品,低酸交联粉酸盐/酸盐膜作为替代品
1Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100 Toruń, Poland.
International journal of biological macromolecules
|August 3, 2023
概括
这项研究用酸和交叉链接剂修改了粉,以创建用于食品包装的可生物降解薄膜. 这些增强的基于粉的材料提供了更好的性能和对塑料的环保替代品.
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
- 生物材料工程 生物材料工程
背景情况:
- 越来越多的工业对生物材料的需求推动了粉的改造.
- 粉修饰增强了特定应用的功能性质.
- 现有的基于粉的材料有局限性,新修改解决了这些局限性.
研究的目的:
- 用酸和交叉链接剂修改粉,以创建功能性生物材料.
- 开发用于食品包装和涂料的化酸酸/酸复合物.
- 评估这些新型粉基材料在生态应用中的性能.
主要方法:
- 用酸和低酸作为交叉链接剂修改粉.
- 化粉糖酸/酸复合膜的制备.
- 使用拉曼,ATR-FTIR,NMR光谱,XRD和热分析进行表征.
主要成果:
- 通过光谱方法证实了粉的成功交叉连接和化.
- 复合膜具有较低的水蒸气透率 (~2%) 和加速的生物降解性.
- 合成时间的增加改善了机械性能 (断裂时的延长~91-94%,Young's Modulus 140-160 MPa).
- 与纯粉薄膜 (23%) 相比,复合材料 (10-21%) 的结晶性下降.
结论:
- 改性粉基材料为食品包装和涂料提供了理想的特性.
- 这些材料为传统塑料提供了可行的生态替代品.
- 合成参数显著影响最终的材料性能.
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