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生物降解的聚合物复合材料基于聚乙烯酸) 聚合物聚合物和木粉粉

Agnieszka Kozłowska¹, Krzysztof Gorący¹, Miroslawa El Fray¹

¹Department of Polymer and Biomaterials Science, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology, Al. Piastow 45, 71-311 Szczecin, Poland.

|April 12, 2025

概括

使用木粉填充剂的可生物降解聚乙烯酸 (PBS) 共聚合物显示表面侵蚀,而不是散装降解. 这些木塑复合材料在土壤生物降解后仍然保持热塑性弹性质,这表明它们具有环保潜力.

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
环境科学环境科学

背景情况:

聚丁酸 (PBS) 是一种可生物降解的聚.
木塑复合材料 (WPC) 提供可持续的材料解决方案.
热塑性弹性体 (TPEs) 结合了类似的弹性和热塑性可加工性.

研究的目的:

为了研究PBS-DLA共聚合物及其WPC的生物降解行为.
评估木粉 (WF) 含量对降解特性的影响.
为了评估热塑性塑料在生物降解后保持弹性质的特性.

主要方法:

制备WPC含有不同WF (10-40%重量) 的WPC.
在土壤生物降解前后分析表面形态,化学结构 (ATR FT-IR),机械性能和热稳定性 (DSC,DMTA,TGA).
微观分析和光谱技术,以确认降解机制.

主要成果:

生物降解观察到表面粗度和微裂纹的增加,特别是WF含量较高的WF.
ATR FT-IR证实了氧化和水解,表明表面侵蚀.
机械性能 (抗拉强度,破裂时延长) 降低,最显著的是20%的WF.
经过3个月的生物降解,PBS-DLA共聚物保留了热塑性弹性体行为,具有稳定的存储模量和微小的热性质变化.

结论:

该研究证实表面侵蚀是PBS-DLA/WPC复合材料的主要降解机制.
复合材料在生物降解后保持其热塑性弹性质.
PBS-DLA/WPC复合材料在需要受控降解的环保应用中显示出有前途,例如包装和农业.

关键词:

可生物降解的复合材料生物降解生物降解滴氨酸酸氨基酸是什么?双重化脂肪酸是一种脂肪酸.聚乙烯酸) 是一种聚乙烯酸.木制面粉的木制面粉可以木塑料复合材料木塑料复合材料

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