化工新型材料

化工新型材料 ›› 2023, Vol. 51 ›› Issue (9) : 34-38. DOI: 10.19817/j.cnki.issn1006-3536.2023.09.007

综述与专论

聚酰亚胺/二氧化硅气凝胶复合材料研究进展

作者信息 +

Research progress on polyimide/silica aerogel composites

Liu Chen, Zhao Jianhong, Wang Boxue, Liu Qingju

Author information +

文章历史 +

Received		Published
2022-04-25		2023-09-20
Issue Date	Revised Date
2023-09-25	2022-04-25

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摘要

二氧化硅(SiO₂)气凝胶是一种纳米多孔固体材料,具有比表面积和孔隙率较大、热导率较低等特点,但其力学性能较差。引入力学性能优良、耐高低温、热稳定性好的聚酰亚胺(PI)与SiO₂气凝胶复合,可制备出兼具二者优势的复合材料。综述了PI/SiO₂气凝胶复合材料的研究进展,介绍了该复合材料的类型及其性能,归纳了该复合材料在隔热、阻燃、防水等方面的应用,并对其发展前景进行了展望。

Abstract

Silica (SiO₂) aerogel is a kind of nanoporous solid material with high specific surface area,high porosity,low thermal conductivity and other characteristics,but at the same time its mechanical properties are poor.By introducing polyimide (PI) with good mechanical properties,high and low temperature resistance and good thermal stability to compound silica aerogel,a composite material combining the advantages of both can be prepared.The latest research progress of polyimide/silica aerogel composites was reviewed,the types and properties of the composites were introduced,their applications in thermal insulation,flame retardant and waterproof were summarized,and their development prospects were discussed.

关键词

聚酰亚胺 / 二氧化硅气凝胶 / 隔热性能 / 防水性能 / 力学性能

Key words

polyimide / silica aerogel / thermal insulation properties / waterproof properties / mechanical properties

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聚酰亚胺/二氧化硅气凝胶复合材料研究进展[J]. 化工新型材料, 2023, 51(9): 34-38 DOI:10.19817/j.cnki.issn1006-3536.2023.09.007

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