Self-assembly of cross-linked carbon nanotube films for improvement on mechanical properties and conductivity

•A cross-linked carbon nanotube film (CL-CNF) was developed for the first time without cross-linked agent.•Easy and reproducible esterification and acylation reactions were used.•The CL-CNF shows better mechanical properties and conductivity than uncross-linked CNF. A facile strategy for cross-linke...

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