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一种由-酸组成的高发射性涂层,用于在高温下进行热保护

Zhengxiang Zhong^1,2, Wenfang Wang¹, Li Liu^1,2

¹School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, China.

Macromolecular rapid communications

|November 28, 2025

概括

一种新的高排放性涂层为航空航天提供了卓越的热保护. 它使用-酸溶液 (ACP) 和先进材料开发,保持高达1500°C的性能.

科学领域:

材料科学材料科学材料科学
航空航天工程航空航天工程
表面化学表面化学

背景情况:

高排放性涂层对于航空航天领域的热管理至关重要.
现有的涂料在极端温度下往往面临热稳定性和排放性方面的限制.

研究的目的:

为了合成一种新的酸溶液 (ACP).
为航空航天应用开发室温固化,高排放性涂层,增强热稳定性和辐射性能.

主要方法:

使用酸,氧化,三氧化和甲醇合成了ACP.
使用ACP粘合剂,Mg-MOF-74固化剂,SiC和ZrB2辐射剂以及Al2O3/ZrO2稳定剂制成了一种涂层.
通过高温暴露 (高达1500°C) 评估了热稳定性,并在不同温度范围内测量了排放性.

主要成果:

开发的涂层表现出极好的热稳定性,在暴露在1500°C后保持98.71%的质量.
达到高发射率 (>0.93在室温下).
在-1200°C处理后,测量出的发射率 ε(3-8 μm) =0.84和 ε(8-18 μm) =0.9.

结论:

这种新型涂层提供了持久且高效的热保护.
该配方为要求高的航空航天热管理挑战提供了有前途的解决方案.
室温固化方面简化了应用过程.

关键词:

- 酸是一种酸.高排放性的高排放性.高温反应反应的高温反应在室温固化时固化.

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