Nitrile rubber(NBR)/polyamide(PA) thermoplastic vulcanizate(TPV) were prepared by Haake mixer process,mixing mill process, pre-mixing with mixing mill and then Haake mixer process.The crystal structure and properties of NBR/PA TPV were studied.The results showed that the NBR/PA TPV prepared by pre-mixing with mixing mill and then Haake mixer process had homogeneous morphological structure,smaller particle size of dispersed phase,good mechanical properties and resistance to solvent.NBR could induce PA contin...