一种还原氧化石墨烯膜及其制备方法与应用
By controlling the substrate roughness and coating speed, combined with chemical reduction treatment, a reduced graphene oxide film with a thermal diffusivity in a certain direction in the plane is significantly higher than that in other directions. This solves the problem of low heat dissipation efficiency in a specific direction of traditional reduced graphene oxide films and enables industrial applications with high-efficiency heat dissipation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- GUANGDONG MORION NANOTECHNOLOGY CO LTD
- Filing Date
- 2025-02-19
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional reduced graphene oxide films have in-plane isotropic thermal diffusion characteristics that make it difficult to meet the requirements for efficient heat dissipation in specific directions. Existing processes are complex and the materials have poor uniformity.
By controlling the substrate roughness and coating speed, combined with chemical reduction treatment, a reduced graphene oxide film with a thermal diffusivity in one direction of the plane that is significantly higher than that in other directions is prepared. The relative motion between the substrate and the doctor blade and the chemical reducing agent are used to form oriented graphene oxide sheets.
It achieves an improved thermal diffusivity in a specific direction, has moderate density and a porous structure, and can quickly disperse stress under external compressive stress, making it suitable for industrial applications that require high-efficiency heat dissipation.
Smart Images
Figure CN119976818B_ABST