Fully Biobased Biodegradable Elastomeric Polymer Blends Based on PHAs

doi:10.3390/polym17212811

2025-10-22

DOI：10.3390/polym17212811

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摘要

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本研究考察了三种聚羟基烷酸酯（PHAs）的二元共混物——聚(3-羟基丁酸酯)(PHB)、聚(3-羟基丁酸酯-共聚-3-羟基己酸酯)(PHBH)和聚(3-羟基丁酸酯-共聚-4-羟基丁酸酯)(P3HB4HB)，重点研究其流变学、热学和力学行为。共混物在熔融态和固态下均表现出部分相容性。玻璃化转变分析表明，当无定型PHA含量低于30 wt%时，半结晶/无定型PHA组合完全相容（单一Tg）。超过此阈值后，会形成两相结构，由嵌入无定型基体中的结晶球晶组成。当无定型PHA含量达到≥30 wt%时，共混物可通过拉伸实现取向，得到表现出热塑性弹性体（TPE）行为且无需对基础聚合物进行化学改性的材料。热学和力学表征，结合取向前后样品的X射线衍射分析，证实弹性性能源于由结晶和无定型区域通过相容的无定型组分相互连接形成的多相结构。

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机构

Faculty of Technology

学者数:

365

论文数: 194

被引数: 0

Slovak University of Technology in Bratislava

学者数:

276

论文数: 102

被引数: 0

引用论文

Ďurfina, M.; Babaei, N.; Vanovčanová, Z.; Feranc, J.; Horváth, V.; Vašková, I.; Kruželák, J.; Tomanová, K.; Plavec, R. Bio-Based Polyhydroxyalkanoate (PHA) Blends for 3D Printing: Rheological, Mechanical, Biocompatibility, and Biodegradation Properties. Polymers 2025, 17, 1477. [Google Scholar] [CrossRef]Ďurfina, M.; Babaei, N.; Vanovčanová, Z.; Feranc, J.; Horváth, V.; Vašková, I.; Kruželák, J.; Tomanová, K.; Plavec, R. 基于生物的聚羟基脂肪酸酯（PHA）共混物用于3D打印：流变学、力学、生物相容性和生物降解性能。Polymers 2025, 17, 1477. [Google Scholar] [CrossRef]

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