期刊
RSC ADVANCES
卷 7, 期 10, 页码 6140-6151出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ra27062j
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资金
- Natural Science Foundation of Hebei Province [E2016202036, E2014202033]
- National Natural Science Foundation of China [51573037]
- Program for Changjiang Scholars and Innovative Research Team in University [IRT13060]
- Key Lab for Micro- and Nano-Scale Boron Nitride Materials in Hebei Province
Based on the template-induced self-assembly characteristic of cyclomatrix polyphosphazene micro-nanometer materials, novel poly(cyclotriphosphazene-co-bisphenol A)-coated boron nitride (PCB-BN) was designed and synthesized by in situ condensation polymerization on the surfaces of boron nitride (BN) particles using the reaction of hexachlorocyclotriphosphazene (HCCP) with bisphenol A (BPA). It was found that the incorporation of PCB-BN particles in the epoxy matrix significantly enhanced thermal conductivity of the epoxy composites. With 20 wt% PCB-BN loading, the thermal conductivity of the EP/PCB-BN composites was 0.708 W m(-1) K-1, which was 3.7 times higher than that of the neat epoxy. Meanwhile, the EP/PCB-BN composites possessed good electrical insulation and thermal stability simultaneously. The composites fabricated also exhibited improved flame retardation and superior dimensional stability during combustion.
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