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从植物到聚合物:在实验室尺度上微处理西萨尔纤维增强的PLA/PHA生物LFT

Rumeysa Yıldırım¹, Nursel Karakaya², Bas Liebau²

¹Department of Chemical Engineering, Kocaeli University, Kocaeli 41001, Türkiye.

|June 27, 2025

概括

这项研究开发了可持续的生物复合材料,使用西萨尔纤维与聚乳酸 (PLA) 和聚氨酸 (PHA) 混合物. 生物-LFT复合材料表现出增强的强度和刚性,突出了环保结构材料的潜力.

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
可持续材料可持续材料

背景情况:

开发高性能生物复合材料对于可持续材料创新至关重要.
在用热塑性矩阵加工天然纤维方面存在挑战.
聚氨酸 (PLA) 和聚酸 (PHA) 提供可生物降解的聚合物选择.

研究的目的:

开发和描述使用PLA/PHA混合物和西萨尔纤维的长纤维增强热塑性 (LFT) 复合材料.
调查西萨尔纤维增强对复合材料性能的影响.
为制造生物-LFT复合材料建立一个实验室规模的工艺.

主要方法:

长纤维复合材料的制造使用一种新的实验室规模的LFT线.
通过里埃变换红外光谱学 (FTIR),扫描电子显微镜 (SEM),旋转类风学,机械测试,微分扫描热量计 (DSC) 和热重力计分析 (TGA) 进行表征.
评估风湿学,机械学,热学和形态学属性.

主要成果:

实现了一般均的西萨尔纤维分散.
观察到西萨尔纤维与PLA/PHA矩阵之间的界面粘附有限.
嵌入西萨尔纤维显著改善了拉伸强度和刚性.
冲击性降低,而结晶性和热稳定性随着PHA含量和纤维增强而增加.

结论:

纤维增强增强了PLA/PHA生物复合材料的关键机械和热性能.
开发的实验室规模的LFT工艺对于加工天然纤维是有效的.
这些发现支持天然纤维在创造高性能,可持续的结构生物复合材料方面的潜力.

关键词:

这就是PHA PHA的意思.这就是为什么PLA PLA PLA.生物-LFT 的使用.微组合是一种微组合.热塑复合材料的热塑复合材料

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