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以环己烷为碳源、二茂铁为催化剂前躯,采用浮游催化法成功的在碳纤维表面生长了碳纳米管(CNT),制备了多尺度杂化材料CNTs/CF。实验重点考察了反应温度、二茂铁浓度、载气等参数对CNT在纤维表面生长的影响,通过扫描电镜(SEM)、投射电镜(TEM)研究了CNTs/CF的形貌及产物CNT的微观结构。当固定反应温度为820℃、二茂铁-环己烷浓度为2g/100mL时,随着氢气在载气中含量在0～100%范围内变化,产物CNT直径亦有86nm降低至39nm。通过单丝拉伸测试发现,相比初始碳纤维,不同长度的CNTs/CF单纤维强度下降幅度均在10%以内。
Using cyclohexane as carbon source and ferrocene as catalyst precursor, carbon nanotubes (CNTs) were successfully grown on the surface of carbon fiber by floatation catalysis, and multi-scale hybrid materials CNTs / CF were prepared. The effects of reaction temperature, ferrocene concentration, carrier gas and other parameters on the growth of CNTs were investigated. The morphology of CNTs / CF and the microstructure of CNTs were investigated by scanning electron microscopy (SEM) and transmission electron microscopy (TEM) structure. When the reaction temperature is fixed at 820 ℃ and the concentration of ferrocene-cyclohexane is 2g / 100mL, the diameter of the product CNT decreases from 86nm to 39nm as the content of hydrogen in the carrier gas changes from 0 to 100%. The monofilament tensile test showed that the strength of CNTs / CF monofilament with different length decreased by less than 10% compared with the initial carbon fiber.