Sandwich structure based on carbon foam as well as preparation method and maintenance method of sandwich structure

Abstract

The invention discloses a sandwich structure based on carbon foam as well as a preparation method and maintenance method of the sandwich structure The sandwich structure comprises a carbon foam sandwich and a panel, wherein the carbon foam sandwich is composed of one or more of resin-based carbon foam, coal-based carbon foam and asphalt-based carbon foam. The carbon foam sandwich has the advantages of thermoelectric conduction property, tailorability, large modulus, high strength, impact resistance, good processability, stable physical and chemical properties, flame retardance, no toxicity, moisture resistance, wave absorption, capability of being compounded with various functional materials and the like; the carbon foam sandwich can be matched with the panel made of different materials according to requirements, so that the sandwich structure with outstanding key functions and excellent comprehensive performance can be formed under different environments; and the sandwich structure can be widely applied to military and civil fields such as aerospace, automobiles and ships, composite material manufacturing, buildings, safety protection and the like.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a lightweight sandwich structure applied in a complex environment and requiring high mechanical and thermal properties, and in particular to a carbon foam-based sandwich structure and its preparation method and maintenance method. Background technique [0002] The sandwich structure has been widely used in many fields because of its high specific stiffness, good stability, and good manufacturability. With the continuous advancement of science and technology, the requirements for the performance of sandwich structures are getting higher and higher. Its development direction is mainly reflected in: 1) Improving the compression and bending load-bearing efficiency of sandwich structures; 2) Making sandwich structures have wave absorption, heat insulation, heat conduction, 3) Improve the survivability of the sandwich structure in complex environments such as high temperatu...

AI Technical Summary

Problems solved by technology

At present, carbon foam is still in the single-function application stage, and there is no research and application on the function and performance of carbon foam sandwich structures.

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