CHEN Yun, ZHANG Chong, YANG Wei, et al. Study on the Relationship Between Thermal Conductivity and Viscosity of Al2O3/BN Epoxy Composite Insulating Materials[J]. 2019, 45(9): 2715-2721.
CHEN Yun, ZHANG Chong, YANG Wei, et al. Study on the Relationship Between Thermal Conductivity and Viscosity of Al2O3/BN Epoxy Composite Insulating Materials[J]. 2019, 45(9): 2715-2721.DOI:
In order to meet the requirements of the epoxy casting molding process of electric equipment
the viscosity and thermal conductivity of epoxy Al
2
O
3
/BN composites were studied. Scanning electron microscopy(SEM)
rotational rheometer and transient planar heat source(MTPS) thermal conductivity analyzer were used to investigate the effects of filler loading on the viscosity
resistivity and thermal conductivity of epoxy formulation systems. Results show that the effect of the layered BN filler on the viscosity of the epoxy composition is much higher than that of the approximately spherical Al2 O3 filler. The use of the layered BN filler is not conducive to the casting and solidification process of the epoxy material in the saturable reactor. Therefore
the use of proximately spherical Al2 O3 filler alone can max
imize the thermal conductivity of epoxy materials without affecting the casting
and the thermal conductivity can reach up to 1.61 W/(m·K).