Large-size silicon carbide aerogel and preparation method thereof

Abstract

The invention discloses large-size silicon carbide aerogel and a preparation method thereof, and belongs to the technical field of preparation silicon carbide aerogel. The silicon carbide aerogel hasa three-dimensional multi-space network microstructure constructed by carbide aerogel nanowires with the size from the nanometer order (the diameter ranges from 20 nm to 100 nm) to the submicron order(the diameter ranges from 0.1 micrometer to 0.5 micrometer), the silicon carbide aerogel has the practical size, and industrial large-scale production can be achieved easily. The prepared silicon carbide aerogel has the ultrahigh porosity (larger than 90%), and is suitable for being used as a heat insulation and preparation material, a catalyst carrier, a filtering material, an energy storage material and other materials. The preparation method of the large-size silicon carbide aerogel is simple in process, the high cost and time-consuming drying equipment and processes referred in the traditional aerogel preparation technology are not needed, the requirement on equipment is low, the preparation efficiency is high, the silicon carbide aerogel with the practical size can be prepared, and industrial large-scale production can be achieved easily.

Description

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AI Technical Summary

Benefits of technology

This patented new type of material called Silicon Carbon Aerocrystal was developed by researcher Daniel Kistler who discovered that it had many benefits such as being highly thermally conductive but also having excellent properties like waterproofness and durability over longer periods than existing products made up entirely of ceramics. These improvements led to its use in various industries including thermal insulating systems, electronic devices, fuel cells, filters, batteries, and more.

Problems solved by technology

Technological Problem addressed in this patents relates to finding new types of thermally stable and highly resistive materials called carbon Aerogels (CN). These materials offer advantages like superior durability under extreme temperatures while also being able to maintain their strength when exposed to severe environmental factors like water vapor. However, current techniques often result in fragile ceramia products containing residual volatile gases during storage and use. Silicon dioxanes (Si02a) were proposed as alternative filler options without causing these issues.

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