引入钠长石/玻璃粉,提高了聚酰亚胺复合材料的抗烧蚀性能和保温性能

Q. Xu, Y. Li, F. Zeng, Yifan Zhang, Pengyang Deng, Zhongmin Su
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引用次数: 3

摘要

聚酰亚胺是一类具有高耐热性的树脂,其复合材料在军用和民用方面有着广泛的应用。然而,聚酰亚胺作为烧蚀和隔热材料的应用一直是一个挑战,因为它们在空气中烧蚀时炭的产率很低。本文描述了聚酰亚胺复合材料的首次应用-钠长石/玻璃粉掺杂聚酰亚胺杂化材料-作为烧蚀和隔热材料。本案例成功的关键在于钠长石/玻璃粉的陶化过程可以大大降低聚酰亚胺在空气中烧蚀过程中的碳损失。此外,还系统地研究了这些聚酰亚胺杂化材料的力学性能、热稳定性、烧蚀和保温性能。这项工作不仅开辟了聚酰亚胺的新应用领域,而且为新型烧蚀和隔热材料的设计提供了新的思路。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Improved ablation resistance and thermal insulation performances of polyimide composites by introducing albite/glass powder composition
Polyimide is a class of resins with high heat resistance, and their composites have a wide range of applications in military and civilian. However, the application of polyimides as an ablation and thermal insulation material has always been a challenge due to their low char yield during ablation in the air. Herein, we described the first application of polyimide composites—albite/glass powder doped polyimide hybrid materials - as an ablation and thermal insulation material. The key to the success of this case is that the process of the ceramization of albite/glass powder can greatly reduce the carbon loss of polyimide during the ablation process in the air. Moreover, the mechanical properties, thermal stability, ablation and thermal insulation properties of these polyimide hybrid materials have been studied systematically. This work not only opens up a new application for polyimide, but also provides a new idea for the design of novel ablation and thermal insulation material.
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