Prepregs of carbon fiber reinforced cyanate ester (CE) resin matrix composites (CF/CE and CF/(10 wt% FG-CE)) were prepared with a laminate thickness of 2.0 mm and a fiber volume fraction of 60% with and without 10 wt% flake graphite (FG) as the CE filler. The rheological and thermal properties of the CE and FG/CE matrix as well as the thermal conductivity and mechanical properties of the CF/CE and CF/(10 wt% FG-CE) composites were investigated. Results indicated that the viscosity of the FG/CE matrix increased exponentially with increasing FG content and decreased significantly with deformation beyond 0.1% strain. A rheological percolation threshold was found at a FG content of 2-4 wt% and the percolation network of FG was broken at strains above 0.1%. The thermal conductivity of the matrix increased linearly with the FG content up to 0.46 W/(m·K) of 10wt%-FG/CE from 0.23 W/(m·K) of pure CE. The elastic modulus of the matrix increased from 2.9 GPa for pure CE to 4.3 GPa for 10 wt%-FG/CE. The thermal conductivity of the CF/(10 wt% FG-CE) composite was increased by 127% and compressive strength by 31% compared with the CF/CE composite.

制备碳纤维增强氰酸酯（CE）树脂基复合材料（CF / CE和CF /（10 wt％FG-CE））的预浸料，层压厚度为2.0 mm，有和没有10时纤维体积分数为60％重量百分比的片状石墨（FG）作为CE填料。研究了CE和FG / CE基体的流变和热性能，以及CF / CE和CF /（10 wt％FG-CE）复合材料的导热性和机械性能。结果表明，FG / CE基体的粘度随FG含量的增加呈指数增加，而变形超过0.1％则显着降低。在FG含量为2-4wt％时发现流变渗透阈值，并且在高于0.1％的菌株下FG的渗透网络破裂。基质的热导率随FG含量的增加而线性增加至0。从0.23 W /（m·K）的纯CE中得到46 W /（m·K）的10wt％-FG / CE。基质的弹性模量从纯CE的2.9 GPa增加到10 wt％-FG / CE的4.3 GPa。与CF / CE复合材料相比，CF /（10 wt％FG-CE）复合材料的热导率提高了127％，抗压强度提高了31％。