Research on the flame retardant and electrical properties of graphene nanosheets/polycarbonate composite materials

doi:10.19936/j.cnki.2096-8000.20260528.002

Abstract

Abstract: The graphene nanosheets (GNK)/polycarbonate (PC) composite materials were prepared in this article and the effects of GNK on mechanical properties, flame retardant performance, and electrical performance of the composite materials were studied. The results indicate that GNK improves the mechanical properties, flame retardant performance, and electrical conductivity of composite materials. With the addition of GNK, the tensile strength and bending strength of the composite material first increase and then decrease;the peak values of the heat release rate (HRR), smoke productionrate (SPR), and CO release rate decrease, and the peak appearance time is delayed;the total heat release (THR), total smoke release (TSR), and CO release rateare reduced, whilethe limiting oxygen index (LOI), fire performance index (FPI), and flame retardant rating are enhanced;the anti-static performance improves, its surface resistivity decreases, and its conductivity increases. When the GNK addition is 6%, the composite material has the best comprehensive performance, with the highest tensile strength and bending strength, which are 36.6% and 16.2% higher than the blank sample. The HRR, SPR, and CO release rates are relatively low, LOI and FPI are high, the flame retardant level reaches V-0 level, and it has good anti-static performance.

Key words: graphene, polycarbonate, mechanical property, flame retardant performance, electrical performance, anti-static performance

CLC Number:

TB332

FEI Ran, LI Haijun, ZHANG Jiangcheng. Research on the flame retardant and electrical properties of graphene nanosheets/polycarbonate composite materials[J]. COMPOSITES SCIENCE AND ENGINEERING, 2026, 0(5): 9-15.

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