Composite material with high thermal conductivity as well as preparation method and application thereof
By constructing a composite material of silver-loaded boron nitride nanosheets, graphene-like two-dimensional materials and bacterial cellulose, the problem of insufficient thermal conductivity of polymer-based composite materials was solved, high thermal conductivity and multifunctional performance were achieved, and the application in electronic devices was expanded.
Patent Information
- Application Number
- CN202510819086.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-18
- Publication Date
- 2025-09-16
AI Technical Summary
The insufficient thermal conductivity of existing polymer-based composite materials limits their application in electronic devices and development in multifunctional fields. In particular, heat dissipation problems are prominent in miniaturized and multifunctional devices, and it is difficult to effectively reduce the interfacial thermal resistance.
Using silver-loaded boron nitride nanosheets, graphene-like two-dimensional materials and bacterial cellulose as raw materials, a "point-surface" heterostructure is constructed through liquid phase exfoliation and in situ chemical reduction. Combined with vacuum filtration self-assembly, a "branch-and-leaf" layered structure is formed to optimize the interface and establish a three-dimensional thermal conduction path.
The thermal conductivity of the composite material was significantly improved to 18.31Wm-1K-1, an increase of 388%, and it has excellent photothermal conversion capabilities, expanding its application in multifunctional fields such as photothermal conversion and photoelectric detection.