Covalently Interconnected BN/CNTs Hybrid Networks Enhance the Thermal Conductivity and Electrical Insulation of Phase Change Composites for Advanced Thermal Management
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Key Points
This work aims to develop covalently bonded BN/CNTs hybrid networks to improve thermal conductivity and electrical insulation in phase change composites.
Constructed PPCMs by embedding BN/CNTs hybrids into a PW/PDMS matrix.
Synthesized hybrids using dopamine-assisted polymerization and amidation.
Conducted structural analyses to confirm amide linkages and filler dispersion.
Evaluated thermal management performance of the composite in battery and LED applications.
Optimized composites show a maximum thermal conductivity of 5.92 W·m −1 ·K −1 .
Achieved a maximum latent heat of 92.5 J·g −1 .
Demonstrated excellent cycling stability with less than 2% mass loss after 100 cycles.
Reduced operating temperatures in applications by 10°C–30°C and maintained stability during 50 cycles.
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