3D Interconnected Boron Nitride Networks in Epoxy Composites via Coalescence Behavior of SAC305 Solder Alloy as a Bridging Material for Enhanced Thermal Conductivity

Polymers

Youjin Kim¹  Jooheon Kim¹ 

[1] School of Chemical Engineering & Materials Science, Chung-Ang University, Seoul 156–756, Korea;

关键词: composites;    epoxy;    boron nitride;    SAC305;    thermal conductivity;    3D structure;   

DOI  :  10.3390/polym12091954

来源: DOAJ

【 摘 要 】

In this study, hybrid fillers of spherically shaped aggregated boron nitride (a-BN) attached with SAC305, were fabricated via simple stirring and the vacuum filtration method. a-BN was used as the primary conductive filler incorporated with epoxy resin, and these fillers were interconnected each other via the coalescence behavior of SAC305 during the thermal curing process. Based on controlled a-BN content (1 g) on 3 g of epoxy, the thermal conductivity of the composite filled with hybrid filler (a-BN:SAC305 = 1:0.5) reached 0.95 W/mK (33 wt%) due to the construction of the 3D filler network, whereas that of composite filled with raw a-BN was only 0.60 W/mK (25 wt%). The thermal conductivity of unfilled epoxy was 0.19 W/mK.

【 授权许可】

Unknown