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Updated: Jun 3, 2025

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交叉连接诱导的兼容性和性增强在多乳酸/多3-基酸-co-4-基酸) 与氧化大豆油混合

Zhixian Qin¹, Yulin He¹, Jia Tan¹

¹Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province, Hunan University of Technology, Zhuzhou 412007, China.

International journal of biological macromolecules

|January 10, 2025

概括

这项研究通过将其与聚3-xybutyrate-co-4-hydroxybutyrate (P(3HB-co-4HB)) 和环氧化大豆油 (ESBO) 混合来增强脆性聚酸 (PLA). 添加ESBO显著提高了PLA混合物的可塑性和冲击强度.

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
生物材料工程生物材料工程

背景情况:

聚酸 (PLA) 具有固有的脆性,限制了其实际应用.
生物降解的聚合物,如聚3-基酸-co-4-基酸) (P3HB-co-4HB)) 提供了性能修改的潜力.
反应性修饰剂对于使聚合物混合物兼容并提高性能至关重要.

研究的目的:

为了提高聚酸 (PLA) 的可塑性和机械性能.
研究混合PLA与P(3HB-co-4HB) 和环氧化大豆油 (ESBO) 的作用.
阐明PLA/P(3HB-co-4HB) /ESBO混合物中性能增强背后的机制.

主要方法:

这是PLA,P(3HB-co-4HB) 和ESBO的混合制剂.
使用理论计算,FT-IR,XRD,DSC,TGA,SEM和机械测试进行表征.
对相容性,结晶,微观结构和热力/机械性能进行分析.

主要成果:

氧化大豆油 (ESBO) 作为反应性修饰剂,在PLA和P(3HB-co-4HB) 之间形成交叉链接移植.
在现场的移植共聚化增强了接口粘附和分散,改善了混合物的兼容性.
最佳ESBO含量 (重量5%) 显著增加了破裂时的拉伸应变 (114.6%至453.3%) 和口冲击强度 (3.75至8.75 kJ·m-2).

结论:

将PLA与P(3HB-co-4HB) 和ESBO混合,可以有效地提高材料的柔性和性.
ESBO促进了反应相容性,从而改善了接口粘合和微观结构.
开发的PLA/P(3HB-co-4HB) /ESBO混合物在需要提高机械性能的应用中表现有前途,尽管过度的ESBO可能是有害的.

关键词:

兼容性兼容性兼容性交叉链接是指交叉链接.这就是ESBO ESBO.P(3HB-co-4HB) 的使用情况.这就是为什么PLA PLA PLA.性性性性

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