基于纤维素的聚氨泡具有低易燃性
Marzena Szpiłyk1, Renata Lubczak1, Jacek Lubczak1
1Faculty of Chemistry, Rzeszów University of Technology, Al. Powstańców Warszawy 6, 35-959 Rzeszów, Poland.
研究人员使用纤维素衍生聚合物开发了耐火聚氨泡 (PUFs). 通过结合一种新型阻燃剂,这些生物降解的刚性PUF与以前的版本相比,显示出更高的安全性.
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
- 可持续化学 可持续化学
背景情况:
- 减少的石油资源需要生物基替代品来生产聚氨泡 (PUF).
- 纤维素是一种有前途的低成本生物聚合物,但其低反应性限制了其在聚合物合成中的使用.
- 以前的纤维素衍生聚合物产生了易燃的生物降解的刚性PUF.
研究的目的:
- 从纤维素制成耐燃生物降解硬型聚氨泡 (PUFs).
- 使用反应性阻燃剂合成一种新的基于纤维素的聚.
- 评估修改后的PUF的易燃性和性能.
主要方法:
- 合成了一种基于纤维素的聚合物,其中包括二乙烯甘醇和酸作为反应性阻燃剂.
- 使用红外光谱 (IR) 和质子核磁共振 (1H-NMR) 进行了聚醇的特征.
- 用修改过的聚和胺作为添加剂的阻燃剂,制定和生产刚性PUF,测试各种物理和热性质,包括通过氧指数的可燃性,水平可燃性和热量计分析的可燃性.
主要成果:
- 基于纤维素的聚醇已成功合成和表征.
- 与未经修改的和经典的PUF相比,修改后的刚性PUF表现出更好的耐燃性.
- 确定了PUF的密度,粘度,基数,吸水量,尺寸稳定性和压力强度等关键性质.
结论:
- 开发的基于纤维素的聚和改性刚性PUF为可持续和更安全的材料提供了可行的途径.
- 加入反应性阻燃剂显著提高了可生物降解PUF的消防安全.
- 这项研究有助于开发环保材料,降低易燃性,用于更广泛的应用.
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