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采用改进的酸法合成富勒醇,并对产物进行了红外光谱、紫外可见光谱表征。采用制备的富勒醇作为表面活性剂,系统研究了富勒醇对碳纳米管分散性和稳定性的影响,实现了稳定的单根多壁碳纳米管分散液的制备。结果表明:当富勒醇质量浓度为(500×10~(-6))g/mL时,得到的分散液中碳纳米管的质量浓度为(1080×10~(-6))g/mL;静置5d后,富勒醇-碳纳米管分散液的沉降百分比仅为5.2%。
Fullerenes were synthesized by the improved acid method. The products were characterized by FTIR and UV-Vis spectra. The prepared fullerenes were used as surfactants to systematically investigate the effect of fullerenols on the dispersibility and stability of CNTs and to achieve a stable single-walled MWNT dispersion. The results showed that the mass concentration of carbon nanotubes in the obtained dispersion was (1080 × 10 -6) g / mL when the concentration of fullerene was (500 × 10 -6) g / mL. After standing for 5 days, the percentage of sedimentation of fullerene-CNT dispersion was only 5.2%.