A graphene / carbon fiber porous composite material and a preparation method thereof, and a lightweight porous composite component

Through the preparation method of graphene/carbon fiber porous composite material, the problem of large weight of existing carbon fiber components is solved, and the effect of reducing the weight of components on the basis of ensuring strength is achieved, with high strength, low density and good thermal insulation properties.

CN119751112APending Publication Date: 2025-04-04SHANGHAI QI JIE CARBON MATERIALS
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Patent Information

Application Number
CN202411704965.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-26
Publication Date
2025-04-04

AI Technical Summary

Technical Problem

The existing carbon fiber components have a large weight due to the high density treatment method, making it difficult to reduce the overall weight of the components on the basis of ensuring strength.

Method used

Using the preparation method of graphene/carbon fiber porous composite material, low-density and high-strength porous composite material are obtained by dispersing graphene microsheet powder in a solution of thermosetting resin, combining with a three-dimensional interlaced fiber network of polyurethane foamed material, and thermal decomposition and carbonization treatment.

Benefits of technology

In the case of porous and low density, graphene/carbon fiber porous composite materials have high strength, high specific compression strength and low thermal conductivity, which can maximize the weight of components and improve energy utilization and battery life.

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Abstract

The present invention belongs to the technical field of carbon fiber composite materials, and specifically relates to a graphene / carbon fiber porous composite material and a preparation method thereof, and also relates to a lightweight porous composite component comprising the graphene / carbon fiber porous composite material. The graphene / carbon fiber porous composite material and the lightweight porous composite component comprising the graphene / carbon fiber porous composite material provided by the present invention can ensure that they still have high strength, high specific compression strength and low thermal conductivity under the condition of porous and low density; at the same time, the porous structure can not only save materials, but also reduce the weight of the component to the maximum extent, increase the endurance and load of aircraft, automobiles, etc., and apply it to the insulation layer of a single crystal furnace, the lower density can improve the convenience of hoisting, the high specific compression strength can improve the support strength in the single crystal furnace, and the low thermal conductivity can improve the thermal insulation performance.
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