在比斯马利胺二乙二硫化基聚合物和复合材料中调和超高温能力和化学降解
Ruiyong Yan1,2, Yan Kou1, Shikai Luo1
1Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang 621900, China.
ACS applied materials & interfaces
|February 4, 2026
概括
这项研究引入了一种新的可回收聚合物,BMS-DB,为苛刻的应用提供高耐热性. 这一突破为航空航天等行业提供了强大,可重复使用的材料,解决了当前可回收网络的局限性.
科学领域:
- 聚合物化学 聚合物化学
- 材料科学 材料科学 材料科学
- 可持续材料 可持续材料
背景情况:
- 传统的热和复合材料缺乏可回收性,限制了它们在可持续制造中的使用.
- 现有的可回收共价适应性网络对于高性能应用来说,其热稳定性不足.
研究的目的:
- 开发一种基于二甲硫化物的新型聚合物 (BMS-DB),具有增强的耐热性和可回收性.
- 评估BMS-DB作为碳纤维复合材料在严峻服务环境中的矩阵的性能.
主要方法:
- 一种基于二甲硫化物的聚合物 (BMS-DB) 的合成.
- 热性质的表征,包括玻璃过渡温度 (Tg) 和储存模量 (E').
- 基于BMS-DB的碳纤维复合材料的制造和测试.
主要成果:
- BMS-DB聚合物在325°C时表现出超高的玻璃过渡温度 (Tg) ~275°C和高存储模量 (E') ~410 MPa.
- 该材料表现出强大的机械性能和快速降解性.
- 使用BMS-DB作为矩阵的碳纤维复合材料达到~305°C的前所未有的Tg,并允许非破坏性回收利用.
结论:
- 开发的BMS-DB聚合物克服了当前可回收网络的耐热限制.
- 这种材料提供了超高温能力和闭环回收能力的独特组合.
- 基于BMS-DB的复合材料非常适合用于航空航天和其他严峻服务行业的苛刻应用.
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