Assessing the Dispersion Quality of Carbon Nanotubes Suspensions by Low Field Nuclear Magnetic Resonance

摘要

In this study,a novel method based on low field nuclear magnetic resonance measurements were used to characterize the dispersion quality of carbon nanotube suspensions.The liquid specific surface area,which calculated with the relaxation time,were used as an indicator of dispersion quality of the carbon nanotubes suspensions.The experimental results were compared with those measured by the conventional method methods,including Zeta potentiometer method and ultraviolet visible spectrophotometer method.The results show that low field nuclear magnetic resonance has the advantages in the characterizing the dispersion quality of high concentration carbon nanotube suspensions and tracking its re-agglomeration process non-destructively.