使用糖提高PLA-粉基聚合物复合物的热性能
Sri Yustikasari Massijaya1, Muhammad Adly Rahandi Lubis2, Rossy Choerun Nissa2
1Forest Products Department, Faculty of Forestry and Environment, IPB University, Bogor 16680, Indonesia.
Polymers
|April 27, 2024
概括
将糖添加到多乳酸-热塑性粉生物复合材料中,提高了热稳定性和物理性能. 最佳的3%的糖糖添加增强了结晶性,但产生了孔隙,与整洁的多乳酸相比影响了机械性能.
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:
- 聚乳酸-热塑性粉 (PLA/TPS) 生物复合材料具有良好的热稳定性,但缺乏所需的物理和机械性能.
- 增强PLA/TPS生物复合材料对于更广泛的应用至关重要,需要使用有效的添加剂.
研究的目的:
- 调查糖作为添加剂对PLA/TPS生物复合材料的物理,机械和热性能的影响.
- 评估砂糖在改善PLA/TPS生物复合物的整体性能方面的潜力.
主要方法:
- 在PLA/TPS混合物中加入糖糖.
- 使用像X射线衍射 (XRD) 这样的技术分析热稳定性.
- 通过场发射扫描电子显微镜 (FESEM) 评估形态学和使用福里埃转换红外光谱 (FTIR) 的化学结构.
主要成果:
- 添加糖增加了PLA/TPS生物复合物的结晶度和热稳定性.
- 由于聚合物粘附性差,FESEM揭示了糖糖改性复合材料的孔隙形成和缺口.
- FTIR显示了基基的存在,这表明对水分和氧气吸收的敏感性.
结论:
- 糖增强了PLA/TPS生物复合物的热稳定性和物理性质,其中3%的糖产生了最好的结果.
- 尽管有所改善,但由于形态变化,糖糖添加导致机械性能与整洁的PLA相比降低.
- 糖的晶体结构影响生物复合材料的特性,但需要进一步优化以克服粘附挑战.
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