论文部分内容阅读
采用两步偶氮反应的方法,在碳纤维(CF)表面成功接枝上碳纳米管(CNTs),制得多尺度杂化材料CNTs/CF。采用扫描电子显微镜电镜(SEM)对样品表面进行观察,发现CNTs均匀分布在CF表面。用X射线光电子能谱仪(XPS)对样品的表面化学组成进行了分析,发现CNTs接枝在了CF表面。并通过单丝拉伸实验对样品进行测试,和CF相比,CNTs/CF的拉伸强度为3.4GPa,模量为220GPa,比CF有轻微的降低,说明这种接枝方法有效保护了CF的力学性能。
A two-step azo reaction method was used to successfully graft carbon nanotubes (CNTs) on the surface of carbon fiber (CF) to produce multi-scale hybrid materials CNTs / CF. Scanning electron microscopy (SEM) was used to observe the surface of the sample, and CNTs were uniformly distributed on the CF surface. The surface chemical composition of the sample was analyzed by X-ray photoelectron spectroscopy (XPS), and it was found that the CNTs were grafted onto the CF surface. Compared with CF, the tensile strength of CNTs / CF was 3.4GPa and the modulus was 220GPa, which was slightly lower than that of CF, indicating that this grafting method effectively protected CF The mechanical properties.