聚(3-基酸-co-3-基酸) 微填充的无水化物修饰的原始木素混合物生物降解材料
Rahul Dev Bairwan1, Lilis Sukeksi2, H P S Abdul Khalil3
1Bioresource Technology Division, School of Industrial Technology, Universiti Sains Malaysia, Penang 11800, Malaysia.
International journal of biological macromolecules
|February 14, 2025
概括
从子纤维中得到的化学修饰的素增强了聚3-基酸-co-3-基酸) (PHBV) 生物聚合物复合物. 在5重量%的Propionylated Lignin中,为可持续的包装应用提供了最佳的性能.
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
- 生物复合材料是一种生物复合材料.
背景情况:
- 作为农业副产品的子纤维产生适合可持续材料应用的原料.
- 聚3-基酸-co-3-基酸 (PHBV) 是一种可生物降解的聚合物,具有环保应用的潜力.
- 提高天然填料与生物聚合物矩阵的兼容性对于开发先进复合材料至关重要.
研究的目的:
- 调查化学改性素作为PHBV可生物降解混合物的填充剂的使用.
- 提高PHBV复合材料的物理,机械和热性能.
- 为了评估红素修饰对填充剂-矩阵混合性和复合材料性能的影响.
主要方法:
- 从子纤维中提取的红素被化学修饰,使用乙和酸无水化物.
- 福利埃变换红外光谱 (FTIR),X射线衍射 (XRD),场发射扫描电子显微镜 (FE-SEM),能量分散X射线光谱 (EDX) 和热重力测量分析 (TGA) 用于表征.
- 混合物是通过化复合和压缩成型制备的,含有不同百分比 (1-7重量%) 的改性素.
主要成果:
- 改性素改善了PHBV混合物的物理,机械和热性能,在5%重量%的改性素下,性能最佳.
- 与乙化和原始素混合物相比,基于propionylated lignin的混合物显示出更高的性能,这是由于增强了填充剂-矩阵的混合性.
- 宁聚合在7重%导致性能降低,由形态学和拉伸性测试证实.
结论:
- 化学修饰的红素,特别是化红素,作为PHBV生物聚合物复合物的有效和可持续的填充剂.
- 增强的界面粘合和改进的可混合性有助于优越的复合材料性能.
- 这些发现支持在包装应用中的环保生物聚合物复合材料中使用改性素.
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