Bidirectionally promoting assembly order for ultrastiff and highly thermally conductive graphene fibres.

ABSTRACT: Macroscopic fibres assembled from two-dimensional (2D) nanosheets are new and impressing type of fibre materials besides those from one-dimensional (1D) polymers, such as graphene fibres. However, the preparation and property-enhancing technologies of these fibres follow those from 1D polymers by improving the orientation along the fibre axis, leading to non-optimized microstructures and low integrated performances. Here, we show a concept of bidirectionally promoting the assembly order, making graphene fibres achieve synergistically improved mechanical and thermal properties. Concentric arrangement of graphene oxide sheets in the cross-section and alignment along fibre axis are realized by multiple shear-flow fields, which bidirectionally promotes the sheet-order of graphene sheets in sol

SUBMITTER: Li P 

PROVIDER: S-EPMC10776572 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature