通过通过环氧链延长器进行反应相容化,实现抗菌,高机械性和可降解的多乳酸/花素复合膜的策略
Tingqiang Yan1, Xiaodong Wang1, Yingjie Qiao1
1College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China.
这项研究开发了强大,抗菌的聚乳酸/奇托 (PLA/CS) 复合膜,用于食品包装. 这些片也可堆肥,解决了安全和环境问题.
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
- 食品包装技术 食品包装技术
背景情况:
- 对食品安全日益关注,需要抗菌,高强度和环保的食品包装解决方案.
- 传统的食品包装材料往往缺乏生物降解性和抗菌性质,导致食品腐烂和浪费.
研究的目的:
- 制备抗菌,高强度和可降解的聚乳酸/基托 (PLA/CS) 复合膜.
- 为了提高PLA和CS之间的界面兼容性,使用反应兼容剂.
- 评估开发的复合膜的机械性能和堆肥可降解性.
主要方法:
- 使用环氧链延长器 (ADR4468) 对聚乳酸 (PLA) 和酸盐 (CS) 的反应相容化.
- 通过ADR诱导的循环添加反应和交叉链接,在PLA和CS之间形成化学键.
- 评估机械性能,特别是破裂时的延长.
- 在100天内对堆肥可降解性的评估.
主要成果:
- 在PLA和CS之间建立了强大的化学键,显著改善了接口兼容性.
- 复合膜在断裂时的延长比没有兼容剂的膜增加了31.8%.
- 复合膜表现出良好的堆肥可降解性,在100天后减少了42-45%的质量.
结论:
- 使用ADR4468的反应兼容性有效地增强了PLA/CS复合膜的性能.
- 开发的PLA/CS薄膜具有理想的抗菌性,高机械性和可降解性,适用于食品包装应用.
- 这项研究为创造可持续和安全的食品包装材料提供了一个有希望的方法.
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