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在PBAT/热塑性粉混合物中加入 pyromellitic dianhydride,以提高性能

Ji Eun Choo¹, Tae Hyeong Park¹, Sung Kyu Kim²

¹Department of Chemical Engineering, Keimyung University, Daegu, South Korea.

International journal of biological macromolecules

|February 22, 2025

概括

这项研究使用PMDA兼容剂增强了聚 (丁基酸盐-协同甲酸盐) (PBAT) /热塑性粉 (TPS) 混合物. 这种补充显著提高了拉伸强度和兼容性,为石油基塑料提供了可持续的替代品.

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
可持续材料可持续材料

背景情况:

聚 (丁烯基酸盐-联合甲酸盐) (PBAT) 和热塑性粉 (TPS) 是重要的生物降解聚合物.
由于固有的不相容性,将PBAT与水性TPS混合在实现优质材料性能方面存在挑战.
优化塑化剂系统,包括甘油,水和环氧化大豆油 (ESO),对于增强TPS特性至关重要.

研究的目的:

研究不同塑化剂系统对PBAT/TPS混合物的影响.
评估PBAT/sTPS混合物的兼容性和机械性能.
探索使用PMDA作为兼容剂来提高PBAT/sTPS混合物的性能.

主要方法:

采用化处理来制备PBAT/TPS混合物,并使用不同的塑化剂系统.
使用了两种不同的TPS塑化剂系统:糖/水和糖/水/氧化大豆油 (ESO).
为了提高兼容性,研究了在0.5至2.0phr的度中添加 pyromellitic dianhydride (PMDA).

主要成果:

PBAT/sTPS混合物表现出较低的界面能量,在断裂时保持了Young的模量和延伸,但高sTPS含量降低了拉伸强度.
添加PMDA证实了PBAT和sTPS之间通过环开放反应的相互作用.
用1.0 phr PMDA实现了最佳的分散和应力转移,从而使拉伸强度增加了33.77%.

结论:

PMDA兼容器显著提高PBAT/sTPS混合物的机械性能和兼容性.
改进的PBAT/sTPS混合物显示出作为传统石油塑料的环保替代品的潜力.
对PMDA修改的PBAT/sTPS系统的进一步研究可能会导致先进的可持续材料解决方案.

关键词:

兼容性兼容性兼容性有塑化效果的效果.聚 (丁烯基酸盐-联合甲酸盐)这是一种Pyromellitic Dianhydride.热塑性粉的使用方法

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