粉化对粉/氧化大豆油基生物塑料的结构和特性的影响
Jianlei Yang1, Shicai Xu1, Ching Yern Chee2
1Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou, 253023, China.
International journal of biological macromolecules
|December 29, 2023
概括
粉化增强了生物塑料的特性. 在pH 5下对粉颗粒的表面修改显著提高了拉伸强度和热稳定性,使它们适合包装.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 生物技术是生物技术.
背景情况:
- 生物塑料为以石油为基础的塑料提供了一个可持续的替代品.
- 粉和环氧化大豆油是有希望的生物降解成分.
- 提高生物塑料的机械和热性能对于广泛采用至关重要.
研究的目的:
- 研究粉化对粉/环氧化大豆油生物塑料性质的影响.
- 确定粉化最佳条件,以提高生物塑料性能.
- 评估这些增强型生物塑料在包装应用中的潜力.
主要方法:
- 使用粉颗粒 (SP-ST) 和凝化粉 (SG-ST) 在不同粉水解pH值下合成粉.
- 使用诸如富里埃变换红外光谱 (FTIR) 和扫描电子显微镜 (SEM) 等技术,对化粉和生物塑料进行表征.
- 评估制造的生物塑料的机械性能 (抗拉强度),热稳定性和水溶性.
主要成果:
- 在pH 5下粉化导致了更高的化程度和与氧化大豆油 (ESO) 的更强的相互作用.
- 结合SP-ST (pH5) 的生物塑料在拉伸强度上增加了51.91%并改善了界面兼容性.
- 含有SG-ST的生物塑料显示,由于未反应的西兰酸盐,拉伸强度降低,热稳定性降低,水溶性增加.
结论:
- 在pH 5下用水解的西兰酸盐对粉表面进行修改,产生具有优越拉伸性能,热稳定性和水溶性的生物塑料.
- 优化的粉化增强了粉/氧化大豆油生物塑料的性能.
- 这些制造的生物塑料是强有力的候选人,可以在包装中取代基于石油的塑料.
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