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基于纤维素和酸化糖醇的新型宏分子和生物基阻燃剂

Matay Kaplan¹, Michael Ciesielski¹, Sabine Fuchs²

¹Fraunhofer Institute for Structural Durability and System Reliability LBF, 64289 Darmstadt, Germany.

|August 12, 2023

概括

开发了从纤维素和酸化无水红醇中提取的新型生物基阻燃剂. 这些可持续的阻燃剂在聚烯-聚乙烯共聚合物和聚胺应用中获得了V2等级.

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:

对可持续塑料的日益增长的需求需要生物基阻燃剂 (FRs).
传统的FR带来了环境问题,推动了对更绿色替代品的研究.

研究的目的:

合成和表征新的含纤维素以生物基FRs.
在聚合物矩阵中评估这些新型FR的阻燃性能.

主要方法:

两步合成,涉及纤维素的烯酸功能化和随后的基-迈克尔添加酸化无水红醇 (PAHE).
使用NMR光谱和热重力测量分析 (TGA) 进行了表征.
将其纳入聚烯-聚乙烯共聚合物 (PP-co-PE) 和基于菜油的聚胺,用于阻燃性测试 (UL 94 V).

主要成果:

新型PAHE功能化的纤维素 (例如,PAHE功能化的CeAcBu) 显示出良好的热稳定性,分解开始在290°C左右.
使用新型FR和协同剂的PP-co-PE样品在UL 94 V测试中获得了V2评级.
菜油基聚胺含有20%的PAHE功能化的CeAcBu也获得了V2评级,燃烧时间短.

结论:

开发的含纤维素 Ester 是有效的生物基阻燃剂.
这些新型FR为提高常见聚合物阻燃性提供了可持续的解决方案.
基于PAHE的FR显示出需要高安全标准的应用的潜力.

关键词:

和迈克尔的添加.烯酸无水化物烯酸无水化物基于生物的生物基础.纤维素烯酸盐是一种纤维素.化化化是一种.阻燃剂是一种阻燃剂.聚烯-聚乙烯合聚合物共聚物.糖酒精糖酒精糖酒精糖酒精

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