Summary
With the continuous development of electrical and electronic equipment towards high integration, the heat dissipation problem of electrical and electronic equipment has become increasingly prominent. Aiming at the bottleneck of low thermal conductivity of ordinary epoxy resins, this study proposes a strategy combining van der Waals force assembly of BN fillers and 1D/2D "line-plane" bridging structure by coordinating the adhesion and assembly of BN fillers on the surface of glass fiber cloth with MWCNTs-PDA@BCN (sintered from dopamine-pretreated MWCNTs). Using epoxy resin as the matrix, a modified glass fiberreinforced epoxy composite with excellent thermal conductivity was successfully prepared.
Read more Read lessThe thermal conductivity of the composite filled with 0.9 wt% MWCNTs-PDA@BCN reached 1.69 W/m·K, which was 429.03% higher than that of the pure glass fiber-reinforced epoxy composite (0.32 W/m·K). Besides，at 0.9 wt% filler content, the relative permittivity
(εr) is less than 4.6, the dielectric loss tangent (tanδ) < 0.05 (10³ Hz), and the breakdown strength reaches 38.2 kV/mm.
Additional informations
| Publication type | Session Materials |
|---|---|
| Reference | D1_12527_2026 |
| Publication year | |
| Publisher | CIGRE |
| Country | China, People's Republic of |
| Study committees | |
| File size | 630 KB |
| Price for non member | 30 € |
| Price for member | 30 € |
Authors
LIU Zhijian - Guangzhou Power Supply Bureau of Guangdong Power Grid Co., Ltd.; ZHANG Gengbin - Guangzhou Power Supply Bureau of Guangdong Power Grid Co., Ltd.; BIAN Jiayin - Guangzhou Power Supply Bureau of Guangdong Power Grid Co., Ltd.; XU Tao - Guangzhou Power Supply Bureau of Guangdong Power Grid Co., Ltd.; PAN Qiao - Guangzhou Power Supply Bureau of Guangdong Power Grid Co., Ltd.; CAI Haohui - Guangzhou Power Supply Bureau of Guangdong Power Grid Co., Ltd.
Keywords
Boron Nitride, Carbon Nanotubes, Thermal Conductivity, Epoxy Composites, Thermal Management
