基于聚乙烯醇,粉和酸盐的可生物降解聚合物混合物的获取和表征
Galiya Irmukhametova1,2, Khaldun M Al Azzam3, Grigoriy A Mun1,2
1Department of Chemistry & Technology of Organic Materials, Polymers and Natural Compounds, Al-Farabi Kazakh National University, 71 Al-Farabi Av., Almaty 050040, Kazakhstan.
Polymers
|February 26, 2025
概括
这项研究增强了可生物降解的聚合物,使用奇托,聚乙烯醇和粉. 结合米和碳黑改善了机械性能和生物降解性,以1/5/4比率的混合物和米显示出最好的结果.
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
- 生物材料工程 生物材料工程
背景情况:
- 酸 (CS) 具有可取的特性,如生物降解性和抗菌活性,但在机械和屏障性能方面存在局限性.
- 开发先进的可生物降解聚合物对于可持续材料解决方案至关重要.
- 聚乙醇 (PVA) 和粉 (S) 是常用的可生物降解聚合物,可以与CS混合以改善性能.
研究的目的:
- 创建和描述使用奇托,聚乙醇和粉的新型生物降解聚合物混合物.
- 研究将米和碳黑加入这些聚合物混合物的物理机械和生物降解性质的影响.
- 为了确定最佳的混合比和添加剂,以获得卓越的材料性能.
主要方法:
- 可生物降解的CS/PVA/S聚合物混合物以1/3/6和1/5/4的比率通过混合聚合合成.
- 描述技术包括FTIR,TGA,SEM和机械测试.
- 混合物被进一步修改,添加了米和碳黑,以评估它们对薄膜特性和生物降解性的影响.
主要成果:
- 加入大米和碳黑显著改善了CS/PVA/S混合物的机械性能 (抗拉强度,延伸度) 和接触角度.
- 用大米草提高了36%的生物降解性,用碳黑提高了15%.
- 在1/5/4比率的CS/PVA/S混合物与米相结合,在机械强度和最快的降解率方面表现出最显著的改善.
- 温度升高 (30-45°C) 提高了可生物降解聚合物的可溶性.
结论:
- 米和碳黑是提高CS/PVA/S混合物的物理机械性能和生物降解性的有效添加剂.
- CS/PVA/S混合 (1/5/4比) 与大米提供了一个有前途的高性能生物降解材料.
- 这些发现有助于开发各种工业应用的可持续和功能性生物材料.
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