使用油衍生物制造抗微生物和高强度聚 (乳酸) 复合膜的制造
Yijun Zong1, Ganbo Liang1, Yuhang Li1
1College of Material and Science, Central South University of Forestry and Technology, Changsha 410000, China.
International journal of biological macromolecules
|November 3, 2023
概括
油衍生物增强聚 (乳酸) (PLA) 薄膜,提高性并提供抗菌特性. 这些经过修改的PLA薄膜显示出安全有效的食品包装应用的潜力.
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
- 生物材料是一种生物材料.
背景情况:
- 传统的塑化剂存在毒性风险.
- 聚 (乳酸) (PLA) 对于更广泛的应用需要改进的机械性能.
- 油衍生品提供了一个可持续的替代品.
研究的目的:
- 合成基于油的四级盐 (Q-ETO).
- 为了评估Q-ETO作为PLA薄膜的塑化剂.
- 评估食品包装PLA/Q-ETO复合膜的性能.
主要方法:
- Q-ETO的多步合成 (氧化,环开放,替代).
- 用溶剂造PLA/Q-ETO复合膜,其中Q-ETO度不同.
- 薄膜特性 (机械,光学,热,屏障,抗菌,浸) 的全面表征.
主要成果:
- 与纯PLA相比,PLA/5%Q-ETO薄膜在断裂时的延长增加了153.67%.
- 所有的PLA/Q-ETO膜都显示出90%以上的抗菌效率,对抗S. aureus和E. coli.
- 电影显示出出色的紫外线/可见光阻断和水蒸气屏障特性,对颜色和热稳定性影响最小.
结论:
- Q-ETO有效地提高了PLA薄膜的性,并具有显著的抗菌活性.
- PLA/Q-ETO复合膜具有食品包装的理想特性,包括屏障和光学特性.
- 开发的材料为可持续的食品包装解决方案提供了一种无毒,高性能的替代品.
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