Graphene/cast nylon composite material and preparation method thereof

Abstract

The invention discloses a graphene / cast nylon composite material and a preparation method thereof. The composite material is formed by combination of paper wad shaped graphene microspheres and cast nylon. The composite material is prepared by steps: preparing the paper wad shaped graphene microspheres, mixing with caprolactam melt, and performing cast polymerization. The obtained paper wad shaped graphene microspheres are excellent in mechanical property and elasticity, effective in impact absorption, high in stability and great in dispersity when being added into the cast nylon, and owing to the paper wad structure, graphene stacking is reduced, and accordingly integral stability is improved. In addition, under the condition of external force application, the graphene microspheres are capable of completely absorbing stress, and integral lubricity of the material can be improved.

Description

technical field

[0001] The invention belongs to the field of composite materials, and relates to a graphene / cast nylon composite material and a preparation method thereof. Background technique

[0002] Graphene is a one-atom-thick two-dimensional single-layer layered material composed of carbon six-membered rings. Graphene itself has high strength (130GPa), high thermal conductivity (5000W m -1 K -1 ), high conductivity (10 8 S m -1 ) and high chemical stability have received extensive attention from researchers since their discovery. The performance of the material assembled by graphene itself is limited by the assembly method and molding process, and the unique properties of graphene cannot be fully utilized at present. Therefore, the use of graphene in the preparation of composite materials is one of the mainstream directions of graphene applications. . Nylon 6 (polyamide 6) is the product with the largest output and the most widely used in nylon engineering materia...

Images