In this study,a new thermoplastic elastomer based on polyamid 6, and polytetrahydrofuran was prepared by continuous hydrolytic ring-opening polymerization process. The effective of adipic acid content on the number-average molecular and the content of amino end groups was investigated. The morphology deduce of TPMP, mechanical performances were also investigated.

Based on melt spinning dynamic model and theory, a basic model of superfine denier polyester multifilament was established. Besides the expressions of quench air temperature and quench air velocity for superfine denier filament spinning process have been established in this paper. In different conditions of diameters of spinneret holes, spinning temperature and the quenching process, the degree of orientation, crystallinity and spinning stress of polyester filament in the spinning process was simulated, respectively. The variation of quench air temperature and air velocity of multifilament in different circles of spinneret was mainly discussed. The research was expected to provide basic theory for optimizing production technique and manufacturing high quality superfine denier polyester filament.

The present work aimed at evaluating the mechanical properties, thermal behaviors and morphology of blends prepared by thermoplastic polyester elastomer (TPEE), polyamid-6(PA6) and epoxy resin (GradeE51). The SEM micrographs displayed a noticeable change in the type of surface structure on adding epoxy resin. The tensile strength, elongation at break of TPEE/PA6/Epoxy resin blends were significantly improved compared to TPEE/PA6 blends. The DSC results proved that the melt temperature (hard phase) of TPEE/PA6 blends tended to fuse together and the melt temperature (soft phase) increased with the content of epoxy resin increased