探索多乳酸,多基甲酸和多丁烯糖酸-同酸) 二元和三元混合物的加工潜力
Alisa Sabalina1, Sergejs Gaidukovs1, Arturs Aunins1
1Institute of Chemistry and Chemical Technology, Faculty of Natural Sciences and Technology, Riga Technical University, P. Valdena 3, LV-1048 Riga, Latvia.
Polymers
|August 29, 2024
概括
这项研究探讨了可生物降解聚合物的混合物,如聚酸酸 (PHA),聚乳酸 (PLA) 和聚酸酸酸 (PBSA). 混合这些生物聚合物为可持续的塑料替代品提供了一条调整材料特性的途径.
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
- 可持续材料 可持续材料
背景情况:
- 可生物降解和生物基聚合物,如聚酸酸 (PHA),聚乳酸 (PLA) 和聚酸酸 (PBSA) 是石油基塑料的关键可持续替代品.
- 了解这些生物聚合物混合物的特性是开发具有量身定制特性的新材料的关键.
研究的目的:
- 综合评估二进制和三进制PHA,PLA和PBSA混合物的特性.
- 调查不同混合物成分对质,形态和热性质的影响.
主要方法:
- 融挤出用于制备PHA,PLA和PBSA的二元和三元混合物.
- 使用扫描电子显微镜 (SEM) 来分析混合物形态.
- 进行了rheological和热量测量测量,以评估材料特性.
主要成果:
- SEM揭示了一个异质的形态与球形包容,不混合混合物的特征.
- 增加的聚乙烯酸盐-联合酸盐 (PBSA) 含量提高了融的粘度和弹性.
- 较高的多基酸盐 (PHA) 含量降低了粘度和模量,但增加了混合水晶性.
- 聚乳酸 (PLA) 在所有混合成分中保持无形.
结论:
- 研究的生物基聚合物混合物与其单个成分相比,具有明显的风湿学和热量计特性.
- 混合物配方的战略调整可以优化各种应用的材料特性.
- 这些发现强调了PHA,PLA和PBSA混合物作为多功能可持续材料的潜力.
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