Large-scale continuous manufacturing device for flexible ceramic nanofibers

Abstract

The invention relates to a large-scale continuous manufacturing device for flexible ceramic nanofibers. The large-scale continuous manufacturing device comprises a sol spinning solution preparation mechanism; the electrostatic spinning mechanism comprises a first liquid storage tank connected with a spinning solution outlet of the sol spinning solution preparation mechanism, and an electrostatic spinning nozzle connected with the first liquid storage tank and used for outputting spinning fibers; the fiber calcination forming mechanism comprises an analysis assembly, a solvent gradient replacement assembly, a drying assembly and a variable atmosphere calcination assembly which are sequentially arranged in the spinning fiber treatment advancing direction. Compared with the prior art, the method is suitable for integrated equipment for batch preparation of an inorganic polymer sol spinning solution without addition of high-molecular polymers, rapid electrostatic spinning fiber forming of spinnable sol, low-temperature calcination forming of gel nanofibers and the like, and large-scale preparation of ceramic nanofibers with excellent mechanical properties is achieved.

Description

technical field [0001] The invention belongs to the technical field of electrostatic spinning devices, and relates to a large-scale continuous manufacturing device for flexible ceramic nanofibers. Background technique [0002] Ceramic fiber is a fibrous ceramic material with a diameter of micronano level. It has been widely used in many industrial fields because of its excellent high temperature resistance and low thermal conductivity of traditional ceramic materials, as well as the advantages of light weight and high porosity of fiber materials. a wide range of applications. When its size is reduced to the order of nanometers, the surface effect and quantum size effect of nanofibers will endow ceramic fibers with unique mechanical, optical, electrical, thermal and other properties, which can significantly improve the performance of ceramic fibers in the environment, energy, aerospace and national defense. application performance in other fields. [0003] The electrospinni...

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Problems solved by technology

Similarly, high-molecular polymers are also added to this preparation method, so high-temperature calcination equipment must be provided in the follow-up to remove organic matter, and it is difficult to realize large-scale production line manufacturing of ceramic nanofibers

[0005] To sum up, the current preparation of ceramic nanofibers is basically in the laboratory stage, and they all rely on the addition of a large amount of polymers to adjust the spinnability of the precursor spinning solution. There are high costs for spinning solution preparation and high energy consumption for high-temperature calcination. , serious pollution in the organic matter removal process, etc., which seriously limit the practical application of ceramic nanofibers

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