一种高导热柔性电磁屏蔽材料的制备方法及其应用
By filling a polyurethane foam with a single layer of graphene and liquid gallium indium tin alloy, a flexible electromagnetic shielding material with high thermal conductivity was prepared, which solved the problem of insufficient thermal conductivity and electromagnetic shielding performance of polymer composite materials, and achieved efficient heat dissipation and improved electromagnetic shielding performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- GUANGDONG GUANGTI ADVANCED NEW MATERIALS CO LTD
- Filing Date
- 2022-11-24
- Publication Date
- 2026-07-17
AI Technical Summary
The thermal conductivity and electromagnetic shielding performance of existing polymer composite materials are difficult to improve significantly with high filler content, resulting in insufficient heat dissipation and decreased electromagnetic shielding performance of electronic devices.
A highly thermally conductive flexible electromagnetic shielding material was prepared by filling a polyurethane foam with a single layer of graphene and liquid gallium indium tin alloy, followed by pretreatment, dispersion immersion, and extrusion drying.
The composite material achieved a thermal conductivity of 100 W/m·k while maintaining excellent electromagnetic shielding performance, making it suitable for efficient heat dissipation and electromagnetic shielding, and possessing the potential for industrial mass production.