具有抗菌性质的聚乙烯 (?? 基酸-共甲酸) / 聚乳酸/四脚架-氧化胡须复合膜
Zhibo Zhao1, Rajkamal Balu1,2, Sheeana Gangadoo1
1Chemical and Environmental Engineering, School of Engineering, RMIT University, Melbourne, VIC 3000, Australia.
Polymers
|April 27, 2024
概括
在这项研究中,使用聚乙烯 (PBAT),聚乳酸 (PLA) 和四足动物-氧化 (T-ZnO) 胡须,开发出了可生物降解的薄膜. 最佳的T-ZnO含量增强了潜在的抗菌食品包装的机械和屏障性能.
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
- 纳米技术 纳米技术
背景情况:
- 像PBAT和PLA这样的可生物降解聚合物对于可持续包装至关重要.
- 提高这些聚合物的机械,屏障和抗菌性质是一个持续的挑战.
- 纳米材料为提高聚合物复合材料性能提供了一个有希望的途径.
研究的目的:
- 为了研究四足动物-氧化 (T-ZnO) 胡须合并对PBAT/PLA混合膜的影响.
- 优化T-ZnO含量以改善材料特性.
- 评估这些复合膜在抗菌食品包装应用中的潜力.
主要方法:
- 生物降解复合薄膜的制备通过融挤出和吹塑.
- 在PBAT/PLA混合物中对T-ZnO胡须度 (1-7重量%) 的系统研究.
- 机械,风湿学,气体屏障和抗菌性质的表征.
主要成果:
- 含有3重%T-ZnO的复合膜表现出最佳的机械强度 (~32 MPa),质性 (~1200 Pa.s) 和气体屏障性能 (~20 cc/m2·day).
- 含有7%重量T-ZnO的膜显示出最高的抗菌疗效.
- 观察到T-ZnO含量和增强的薄膜特性之间存在明显的相关性.
结论:
- 可生物降解的PBAT/PLA复合薄膜包含T-ZnO胡须显示显著改善的性能.
- 开发的材料显示出很有前途的应用,作为先进的抗菌食品包装.
- 定制T-ZnO内容允许针对特定应用优化特定薄膜特性.
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