Polyamide airgel fiber, its preparation method and application

Abstract

The invention discloses a polyamide airgel fiber, its preparation method and application. The polyamide airgel fiber has a connected three-dimensional porous network structure, and the three-dimensional porous network structure is formed by overlapping polyamide nanostructures. The preparation method includes: providing a polyamide spinning solution, preparing polyamide gel fibers by using gel spinning method, wet spinning method, dry spinning method and 3D printing method, and preparing the polyamide gel fiber The fibers are dried to obtain polyamide airgel fibers. The polyamide airgel fiber of the present invention has a unique three-dimensional porous network structure, extremely low thermal conductivity, relatively high porosity, certain spinnability and excellent skeleton structure stability, and can be applied in fields such as textiles. In addition, the obtained polyamide airgel fibers can be filled with different functional materials without affecting the stability of the skeleton material, which has great application prospects.

Description

Polyamide aerogel fiber, its preparation method and application technical field The present invention relates to a kind of novel functional fiber, relate in particular to a kind of polyamide aerogel fiber and preparation method thereof The invention relates to a method and application, and belongs to the technical field of nanoporous materials and functional fibers. Background technique [0002] Fiber materials have a long history. Since the fifth millennium BC, human beings have begun to use natural fibers such as cotton and linen. since the nineteenth century Since the birth of synthetic fibers in the early 1990s, the development of fiber materials has been greatly promoted due to the advantages of controllable components and designable structures. The types of fibers continue to increase, and different types of fibers such as differentiated fibers, high-performance fibers, functional fibers and smart fibers have been developed. types of fibers. After decades of de...

AI Technical Summary

Problems solved by technology

Airgel fibers that have appeared at present include graphene oxide airgel fibers, graphene airgel fibers, titanium oxide airgel fibers, cellulose airgel fibers and polyvinylidene fluoride airgel fibers, etc., but the types Still relatively few, and the application fields of obtained airgel fibers are still limited

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